Ac Crane Control

28
FRON AC CRA NTLINE ANE CONT CON Description Type M Contactors EDDYMAG Hoist…… AC Dynamic Lowering Hoist…… CONTRA-TORQUE Hoist…… Reversing Plugging…… Dimensions…… Modifications and Applications…… Type S Controls…… Dimensions…… Resistor Selection…… Master Switches…… Disconnect Switches Manual Magnetic…… L TROL NTENTS Class Page …………6420 …………… 2-3 …………6421 …………… 4-5 …………6422 …………… 6-7 …………6426 …………… 8-9 …………642/1/2/6 …………… 10-11 …………642/1/2/6 …………… 23-25 …………6435 …………… 12-15 …………6435 …………… 16 …………6715 …………… 17 …………9004 …………… 19 …………6440 …………… 20-22 Class 6420, 6421 6422, 6426 6435, 6440 May, 2008

Transcript of Ac Crane Control

Page 1: Ac Crane Control

September 2008 FRONTLINE

AC CRANE CONTROL

FRONTLINEreg AC CRANE CONTROL

AC CRANE CONTROLCONTENTS

DescriptionType M Contactors

EDDYMAGHoisthelliphelliphelliphelliphellipAC Dynamic Lowering HoisthelliphelliphelliphelliphellipCONTRA-TORQUE Hoisthelliphelliphelliphelliphellip

Reversing PlugginghelliphelliphelliphelliphellipDimensionshelliphelliphelliphelliphellip

Modifications and Applicationshelliphelliphelliphelliphellip

Type S ControlshelliphelliphelliphelliphellipDimensionshelliphelliphelliphelliphellip

Resistor SelectionhelliphelliphelliphelliphellipMaster Switcheshelliphelliphelliphelliphellip

Disconnect SwitchesManual Magnetichelliphelliphelliphelliphellip

AC CRANE CONTROL CLASS

AC CRANE CONTROLCONTENTS

Class Page

helliphelliphelliphelliphellip6420 helliphelliphelliphelliphellip 2-3helliphelliphelliphelliphellip6421 helliphelliphelliphelliphellip 4-5helliphelliphelliphelliphellip6422 helliphelliphelliphelliphellip 6-7helliphelliphelliphelliphellip6426 helliphelliphelliphelliphellip 8-9helliphelliphelliphelliphellip642126 helliphelliphelliphelliphellip 10-11helliphelliphelliphelliphellip642126 helliphelliphelliphelliphellip 23-25

helliphelliphelliphelliphellip6435 helliphelliphelliphelliphellip 12-15helliphelliphelliphelliphellip6435 helliphelliphelliphelliphellip 16helliphelliphelliphelliphellip6715 helliphelliphelliphelliphellip 17helliphelliphelliphelliphellip9004 helliphelliphelliphelliphellip 19

helliphelliphelliphelliphellip6440 helliphelliphelliphelliphellip 20-22

Class6420 64216422 64266435 6440May 2008

FRONTLINE

2

CLASS

GENERAL INFORMATION

Class 6420 reversing EDDYMAGreg controllers are recommended for use with ac wound rotor motors and eddy current electric load brakes oncrane hoist drives without mechanical load brakes All controllers are arranged for use with rectifier operated dc shunt braoperated ac brakes

The standard single motor reversing EDDYMAGreg controllerconsists of

1mdashTwo pole control molded case switch (CMCS)1mdashThree pole magnetic main line circuit breaker with padlock clip

LCB)2mdashType M two-pole contactors with mechanical interlock for

hoisting and lowering circuits (H L)1mdashType M two-pole main contactor (M)5 or 6mdashType M two-pole acceleration contactors

(1A 2A 3A 4A 5A 6A)2 or 3mdashType ST1 static acceleration timers (3AR 4AR1mdash460380230 to 255 volt fused control circuit transformer

(CTR)1mdashControl Circuit Rectifier (RECT)1mdashType KFO under voltage relay (UV)1mdashPneumatic timing transition relay (TR)1mdashControl relay to detect loss of eddy current brake excitation

(ACDC)1mdashSet of static eddy current brake control equipment (ECBM)3mdashType AO magnetic inverse time overload relays

(1OslashL 2OslashL 3OslashL)1mdashType SZF acceleration relay (5AR)1mdashSZF power loss protection relay circuits

(SPR 2RECT 2MOV 2RES)

Voltage3Ǿ

5060Hz

CraneRating

NEMAContactor

SizeMax

AmperesMaxHp

Primary Secondary

380

67 30 2 2133 60 3 3200 100 4 4400 150 5 5400 200 5 5

460

67 40 2 2133 80 3 3200 125 4 4400 200 5 5400 300 5 5

Select controller based on horsepower and rated primary and secondary current For These controllers have six speed points available but are used with fivediams These controllers have seven speed points available but are used with six

ORDERING INFORMATION REQUIRED See Page 23MODIFICATIONS See Page

FRONTLINEreg AC CRANE CONTROL

GENERAL INFORMATIONEDDYMAGreg

HOIST SERVICEcontrollers are recommended for use with ac wound rotor motors and eddy current electric load brakes on

crane hoist drives without mechanical load brakes All controllers are arranged for use with rectifier operated dc shunt bra

controller

t breaker with padlock clip

with mechanical interlock for

Type ST1 static acceleration timers (3AR 4AR 5AR)sformer

Control relay to detect loss of eddy current brake excitation

(ECBM)

PROVIDES SLOW HOISTING AND LOWERING SPEEDSFOR ALL LOADS

MILL DUTY CLASS 8503 TYPE M CLAPPER TYPECONTACTORS

CLASS 7001 TYPE ST1 STATIC ACCELERATION TIMERS REQUIRES EDDY CURRENT ELECTRIC LOAD BRAKE

NoSpeedPoints

OpenType

General PurposeEnclosure NEMAType 1 Gasketed

Outdoor EnclosureNEMA Type 3R

Secondary

SINGLE MOTOR CONTROL

5 DOH70 DSH70 DWH705 EOH70 ESH70 EWH705 FOH70 FSH70 FWH705 GOH70 GSH70 GWH706diams GOH90 GSH90 GWH90

5 DOH70 DSH70 DWH705 EOH70 ESH70 EWH705 FOH70 FSH70 FWH705 GOH70 GSH70 GWH706diams GOH90 GSH90 GWH90

Select controller based on horsepower and rated primary and secondary current For explanation refer to Controller Ratings section of Application Dts available but are used with five speed point master switches the last acceleration point being relay controlled

but are used with six speed point master switches the last acceleration point being relay controlled

See Page 23See Page 24

APPLICATION INFORMATIONDIMENSIONAL INFORMATION

September 2008

controllers are recommended for use with ac wound rotor motors and eddy current electric load brakes oncrane hoist drives without mechanical load brakes All controllers are arranged for use with rectifier operated dc shunt brakes or solenoid

AND LOWERING SPEEDS

MILL DUTY CLASS 8503 TYPE M CLAPPER TYPE

TYPE ST1 STATIC ACCELERATION TIMERSS EDDY CURRENT ELECTRIC LOAD BRAKE

Outdoor EnclosureDusttight

Enclosure NEMAType 12

DAH70EAH70FAH70GAH70GAH90

DAH70EAH70FAH70GAH70GAH90

Controller Ratings section of Application Datapoint master switches the last acceleration point being relay controlled

ches the last acceleration point being relay controlled

APPLICATION INFORMATION See Pages 23-25DIMENSIONAL INFORMATION See Pages 10amp11

September 2008 FRONTLINE

EDDYMAG

FRONTLINEreg AC CRANE CONTROL

EDDYMAGreg HOIST ELEMENTARY

AC CRANE CONTROL

3

CLASS

FRONTLINE

4

CLASS

AC DYNAMIC LOWERINGGENERAL INFORMATION

Class 6421 reversing dynamic lowering controllers are recommended for use with ac wound rotor motors on crane hoist without mechanicalload brakes All controllers are arranged for use with rectifier operated dc shunt brakes or solenoid

The standard single motor reversing dynamic loweringconsists of

1mdashTwo pole control molded case switch (CMCS)1mdashThree pole magnetic main line circuit breaker with padlock clip

(LCB)4mdashType M two-pole contactors with mechanical interlock for

hoisting and lowering circuits (H L DB M)5 or 6mdashType M two-pole acceleration contactors

(1A 2A 3A 4A 5A 6A)3 4 or 5mdashType SZF static acceleration relays

(2AR 3AR 4AR 5AR)1mdash460380230 to 255 volt fused control circuit transformer

(CTR)1mdashControl Circuit Rectifier (RECT)1mdashType KFO under voltage relay (UV)1mdashBrake relay (BR)1mdashPneumatic timing transition relay (TR)3mdashType AO magnetic inverse time overload relays

(1OslashL 2OslashL 3OslashL)1mdashSZF power loss protection relay circuits

(SPR 2RECT 2MOV 2RES)

Volts3Ǿ

5060Hz

CraneRating

NEMAContactor

SizeMax

AmperesMaxHp

Primary Secondary

380

67 30 2 2133 60 3 3200 100 4 4400 150 5 5400 200 5 5

460

67 40 2 2133 80 3 3200 125 4 4400 200 5 5400 300 5 5

Select controller based on horsepower and rated primary and secondary current ForThese controllers have six speed points available but are used with 5point master switches the last aThese controllers have seven speed points available but are used with 6point master switches the last acceleratio

ORDERING INFORMATION REQUIRED See Page 23MODIFICATIONS See Page 24

CLASS

FRONTLINEreg AC CRANE CONTROL

AC DYNAMIC LOWERINGGENERAL INFORMATION

HOIST SERVICEreversing dynamic lowering controllers are recommended for use with ac wound rotor motors on crane hoist without mechanical

load brakes All controllers are arranged for use with rectifier operated dc shunt brakes or solenoid operated ac brakes

controller

Three pole magnetic main line circuit breaker with padlock clip

contactors with mechanical interlock for

d control circuit transformer

USES SINGLE PHASE MOTOR CONNECTION FORDYNAMIC LOWERING

SUITABLE FOR APPLICATIONS NOT REQUIRING SLOWLOWERING SPEED

MILL DUTY CLASS 8503 TYPE M CLAPPER TYPECONTACTORS

CLASS 8501 TYPE SZF STATIC ACCELERATION TIMERS

NoSpeedPoints

OpenType

General PurposeEnclosure NEMAType 1 Gasketed

Outdoor EnclosureNEMA Type 3R

Secondary

SINGLE MOTOR CONTROL

5 DOH71 DSH71 DWH715 EOH71 ESH71 EWH715 FOH71 FSH71 FWH715 GOH71 GSH71 GWH716diams GOH91 GSH91 GWH91

5 DOH71 DSH71 DWH715 EOH71 ESH71 EWH715 FOH71 FSH71 FWH715 GOH71 GSH71 GWH716diams GOH91 GSH91 GWH91

Select controller based on horsepower and rated primary and secondary current For explanation refer to Controller Ratings section of Application Dcontrollers have six speed points available but are used with 5point master switches the last acceleration point being relay controlledcontrollers have seven speed points available but are used with 6point master switches the last acceleration point being relay controlled

See Page 23See Page 24

APPLICATION INFORMATIONDIMENSIONAL INFORMATION

September 2008

reversing dynamic lowering controllers are recommended for use with ac wound rotor motors on crane hoist without mechanical

USES SINGLE PHASE MOTOR CONNECTION FOR

S NOT REQUIRING SLOW

MILL DUTY CLASS 8503 TYPE M CLAPPER TYPE

E SZF STATIC ACCELERATION TIMERS

Outdoor EnclosureDusttight

Enclosure NEMAType 12

DAH71EAH71FAH71GAH71GAH91

DAH71EAH71FAH71GAH71GAH91

Application Datacceleration point being relay controlled

n point being relay controlled

APPLICATION INFORMATIONSee Pages 23-25DIMENSIONAL INFORMATIONSee Pages 10amp11

September 2008 FRONTLINE

DYNAMIC LOWERING ELE

FRONTLINEreg AC CRANE CONTROL

DYNAMIC LOWERING ELEMENTARY DIAGRAM

AC CRANE CONTROL

5

CLASS

MENTARY DIAGRAM

CLASS

FRONTLINE

6

CLASS

GENERAL

Class 6422 reversing CONTRA-TORQUEreg controllers are recommendedmechanical load brakes but with fixed overhauling loads such as bucket crane hoistoperated dc shunt brakes or solenoid operated ac brakes

The standard single motor reversing CONTRA-TORQUEcontroller consists of

1mdashTwo pole control molded case switch (CMCS)1mdashThree pole magnetic main line circuit breaker with padlock clip

(LCB)2mdashType M two-pole contactors with mechanical interlock for

hoisting and lowering circuits (H L)1mdashType M two-pole main contactor (M)5 or 6mdashType M two-pole acceleration contactors

(1A 2A 3A 4A 5A 6A)5 or 6mdashType SZF frequency relays

(3AR 4AR 5AR 6AR OS NH)1mdash460380230 to 255 volt fused control circuit transformer

(CTR)1mdashControl Circuit Rectifier (RECT)1mdashType KFO under voltage relay (UV)2mdashPneumatic timing relays for counter-torque and lowering

relays (CTR LR)1mdashPneumatic timing transition relay (TR)3mdashType AO magnetic inverse time overload relays

(1OslashL 2OslashL 3OslashL)1mdashSZF power loss protection relay circuits

(SPR 2RECT 2MOV 2RES)

Volts5060Hz

CraneRating

NEMAContactor

SizeMax

AmperesMaxHp

Primary Secondary

380

67 30 2 2133 60 3 3200 100 4 4400 150 5 5400 200 5 5

460

67 40 2 2133 80 3 3200 125 4 4400 200 5 5400 300 5 5

Select controller based on horsepower and rated primary and secondary current ForThese controllers have six speed points available but are used withdiamsThese controllers have seven speed points available but are used with 6point master switches the last acceleration point being rel

ORDERING INFORMATION REQUIRED See Page 23MODIFICATIONS See Page

CLASS

FRONTLINEreg AC CRANE CONTROL

CONTRA-TORQUEreg

GENERAL INFORMATIONHOIST SERVICE

controllers are recommended for use with ac wound rotor motors on crane hoistbut with fixed overhauling loads such as bucket crane hoists All controllers are arranged for use with rectifier

operated dc shunt brakes or solenoid operated ac brakes

TORQUEreg

ine circuit breaker with padlock clip

contactors with mechanical interlock for

volt fused control circuit transformer

and lowering

PROVIDES SLOW LOWERING SPEEDS FOROVERHAULING LOADS ONLY

MILL DUTY CLASS 8503 TYPE M CLAPPER TYPECONTACTORS

CLASS 8501 TYPE SZF STATIC ACCELERATION TIMERS

NoSpeedPoints

OpenType

General PurposeEnclosure NEMAType 1 Gasketed

Outdoor EnclosureNEMA Type 3R

Secondary

SINGLE MOTOR CONTROL

5 DOH72 DSH72 DWH725 EOH72 ESH72 EWH725 FOH72 FSH72 FWH725 GOH72 GSH72 GWH726diams GOH92 GSH92 GWH92

5 DOH72 DSH72 DWH725 EOH72 ESH72 EWH725 FOH72 FSH72 FWH725 GOH72 GSH72 GWH726diams GOH92 GSH92 GWH92

Select controller based on horsepower and rated primary and secondary current For explanation refer to Controller Ratings section ofcontrollers have six speed points available but are used with 5point master switches the last acceleration point being relay controlledcontrollers have seven speed points available but are used with 6point master switches the last acceleration point being relay controlled

See Page 23See Page 24

APPLICATION INFORMATIONDIMENSIONAL INFORMATION

September 2008

for use with ac wound rotor motors on crane hoists withoutarranged for use with rectifier

LOWERING SPEEDS FOR

MILL DUTY CLASS 8503 TYPE M CLAPPER TYPE

STATIC ACCELERATION TIMERS

Outdoor EnclosureDusttight

Enclosure NEMAType 12

DAH72EAH72FAH72GAH72GAH92

DAH72EAH72FAH72GAH72GAH92

Controller Ratings section of Application Data5point master switches the last acceleration point being relay controlled

ay controlled

APPLICATION INFORMATION See Pages 23-25DIMENSIONAL INFORMATION See Pages 10amp11

September 2008 FRONTLINE

CONTRA

FRONTLINEreg AC CRANE CONTROL

CONTRA-TORQUEreg ELEMENTARY DIAGRAM

AC CRANE CONTROL

7

CLASS

CLASS

FRONTLINE

8

CLASS

REVERSING PLUGGINGClass 6426 controllers are recommended for used withThe hoist controllers are of the reversing hoist type and are used on cranes with mechanical load brakes Thereversing plugging type Both the hoist and the travel controlleroperated ac brakes

The standard single motor reversing hoist controller consists of equipment for a reversing plugging controllerfor plugging (PR)

BRIDGE OR TROLLEY SE

The standard single motor reversing controller consists of

1mdashTwo pole control molded case switch (CMCS)1mdashThree pole magnetic main line circuit breaker with padlock clip

(LCB)2mdashType M two-pole contactors with mechanical interlock1mdashType M two-pole main contactor (M)4 or 5 or 6Type M two-pole acceleration contactors (including one

for plugging) (P 1A 2A 3A 4A 5A 6A)3 or 4 or 5Type ST1 static acceleration timers

(1AR 2AR 3AR 4AR 5AR)1mdashType SZF frequency relay for plugging (PR)1mdash460380230 to 255 volt fused control circuit transformer

(CTR)1mdashControl Circuit Rectifier (RECT)1mdashType KFO under voltage relay (UV)3mdashType AO magnetic inverse time overload relays

(1OslashL 2OslashL 3OslashL)

1mdashSZF power loss protection relay circuit(SPR 2RECT 2MOV 2RES)

The standard duplex reversing plugging controller consists of theequipment for a single motor controller with the exceptionfollowing equipment is added4 or 5mdashType M two-pole acceleration contactors

(2P 21A 22A 23A 24A)3mdashType AO magnetic inverse time overload relays

(4OslashL 5OslashL 6OslashL)

Volts5060Hz

CraneRating

NEMAContactor

Size

MaxAmperes

MaxHp

Primary Secondary

Primary Secondary

380

67 67 30 2 2133 133 60 3 3200 200 100 4 4400 400 150 5 5400 400 200 5 5

460

67 67 40 2 2133 133 80 3 3200 200 125 4 4400 400 200 5 5400 400 300 5 5

380

67 67 30 2 2133 133 60 3 2200 200 100 4 3400 400 150 5 4400 400 200 5 5

460

67 67 40 2 2133 67 80 3 2200 133 120 4 3400 200 200 5 4400 400 300 5 5

Select controller based on motor horsepower and rated primary and secondary current FordiamsPrice is for single motor reversing plugging or reversing hoist For reversing hoist change theThese controllers have 6 speed points available but are used with 5point master switches the last acceleration point beingThese controllers have seven speed points available but are used with 6point master swit

ORDERING INFORMATION REQUIRED See Page 23MODIFICATIONS See Page 24

CLASS

FRONTLINEreg AC CRANE CONTROL

REVERSING PLUGGING CONTROLfor used with ac wound rotor motor on hoist and travel drives of general-purpose

The hoist controllers are of the reversing hoist type and are used on cranes with mechanical load brakes The travel panels are of thecontrollers are arranged for use with rectifier operated dc shunt brakes or solenoid

HOIST SERVICEThe standard single motor reversing hoist controller consists of equipment for a reversing plugging controller but without

BRIDGE OR TROLLEY SERVICE

The standard single motor reversing controller consists of

Three pole magnetic main line circuit breaker with padlock clip

contactors with mechanical interlock (F R)

including one

volt fused control circuit transformer

rsing plugging controller consists of thefor a single motor controller with the exception that the

MILL DUTY CLASS 8503 TYPE M CLAPPER TYPECONTACTORS

CLASS 8501 TYPE SZF FREQUENCY ACCELERATIONRELAYS FOR PLUGGING

CLASS 7001 TYPE ST1 STATICACCELERATION TIMERS

NoSpeedPoints

OpenType

General PurposeEnclosure NEMAType 1 Gasketed

Outdoor EnclosureNEMA Type 3R

Secondary

SINGLE MOTOR CONTROL

5 DOR76 DSR76 DWR765 EOR76 ESR76 EWR765 FOR76 FSR76 FWR765 GOR76 GSR76 GWR766 GOR96 GSR96 GWR96

5 DOR76 DSR76 DWR765 EOR76 ESR76 EWR765 FOR76 FSR76 FWR765 GOR76 GSR76 GWR766 GOR96 GSR96 GWR96

DUPLEX MOTOR CONTROL5 DOR86 DSR86 DWR865 EOR86 ESR86 EWR865 FOR86 FSR86 FWR865 GOR86 GSR86 GWR865 GOR106 GSR106 GWR106

5 DOR86 DSR86 DWR865 EOR86 ESR86 EWR865 FOR86 FSR86 FWR865 GOR86 GSR86 GWR865 GOR106 GSR106 GWR106

Select controller based on motor horsepower and rated primary and secondary current For explanation refer to Controller Ratings section of Application DataPrice is for single motor reversing plugging or reversing hoist For reversing hoist change the R in the type to an H

These controllers have 6 speed points available but are used with 5point master switches the last acceleration point being relay controlledThese controllers have seven speed points available but are used with 6point master switches the last acceleration point being relay controlled

See Page 23See Page 24

APPLICATION INFORMATIONDIMENSIONAL INFORMATION

September 2008

purpose overhead cranespanels are of the

r operated dc shunt brakes or solenoid

out SZF frequency relay

MILL DUTY CLASS 8503 TYPE M CLAPPER TYPE

CLASS 8501 TYPE SZF FREQUENCY ACCELERATION

STATICACCELERATION TIMERS

DusttightEnclosure NEMA

Type 12

DAR76EAR76FAR76GAR76GAR96

DAR76EAR76FAR76GAR76GAR96

DAR86EAR86FAR86GAR86

GAR106

DAR86EAR86FAR86GAR86

GAR106Application Data

APPLICATION INFORMATION See Pages 23-25DIMENSIONAL INFORMATION See Pages 10amp11

September 2008 FRONTLINE

REVERSING PLUGGING E

FRONTLINEreg AC CRANE CONTROL

REVERSING PLUGGING ELEMENTARY DIAGRAM

AC CRANE CONTROL

9

CLASS

LEMENTARY DIAGRAM

CLASS

FRONTLINE

10

CLASS

CLASS

APPROXIMATE DIMENSIOSINGLE AND DUPLEX MOTOR CONTROL STANDA

OPEN TYPE

MAXIMUM HP

460V 380VHin

mm

HOISTClasses6420 amp6422

40 3048

1219

80 6048

1219

125 10048

1219200 150

NOT A300 200

HOISTClasses6421 amp6426

ampBridge orTrolleyClass6426

40 3048

1219

80 6048

1219

125 10048

1219

NOT A200 150

300 200

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMENSIONS AND WEIGHTSMOTOR CONTROL STANDARD CONTROLLERS

ENCLOSED TYPE

OPEN TYPE ENCLOSED TYPE

Win

mm

Cin

mm

NETWeightLbskg

Win

mm

Cin

mm

SINGLE MOTOR CONTROL69

175312305

52523848

121969

175369

175312305

70031848

121969

175369

175312305

70031848

121969

1753

NOT AVAILABLE IN STANDARD DIMENSIONS SEE NARROW WIDTH DIM

DUPLEX MOTOR CONTROL69

175312305

50022748

121969

175369

175312305

70031848

121969

175369

175312305

70031848

121969

1753

NOT AVAILABLE IN STANDARD DIMENSIONS SEE NARROW WIDTH DIM

September 2008

RD CONTROLLERS

ENCLOSED TYPE

ENCLOSED TYPE

Din

mm

NETWeightLbskg

15381

750341

15381

900409

15381

900409

SEE NARROW WIDTH DIMENSIONS

15381

700318

15381

900409

15381

900409

SEE NARROW WIDTH DIMENSIONS

September 2008 FRONTLINE

APPROXIMATESINGLE AND DUPLEX

OPEN TYPE

DRIVE

MAXIMUM HP

460V 380Vmm

HOIST(All Classes)and Bridge

Trolley

40 30

80 601727

125 1001727

200 1501981

300 2001981

CLASS 6426Bridge and

Trolleyonly

40 30

80 601727

125 1001727

200 150

300 200

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMENSIONS AND WEIGHTSAND DUPLEX MOTOR CONTROL NARROW WIDTH CONTR

ENCLOSED TYPE

OPEN TYPE

Hin

mm

Win

mm

Cin

mm

NETWeightLbskg

Hin

mm

SINGLE MOTOR CONTROL- - - - -

681727

631600

12305

70031868

172768

172763

160012305

70031868

172778

198177

195615381

130059078

198178

198177

195615381

130059078

1981DUPLEX MOTOR CONTROL

- - - - -68

172775

190512305

100045468

172768

172775

190512305

100045468

1727

NOT AVAILABLE IN STANDARD DIMENSIONS SEE NARROW WIDTH DIM

AC CRANE CONTROL

11

CLASS

CLASS6420642164226426CONTROLLERS

ENCLOSED TYPE

ENCLOSED TYPE

Win

mm

Din

mm

NETWeightLbskg

- -63

160015381

900409

631600

15381

900409

771956

17482

1800817

771956

17482

1800817

- -75

190515381

1400635

751905

15381

1400635

SEE NARROW WIDTH DIMENSIONS

FRONTLINE

12

CLASS

WITH SQUARE DGENERAL INFORMATION

Class 6435 controllers are recommended for used withThe hoist controllers are of the reversing dynamic lowering type whenhoist type when used on cranes with mechanical load brakestravel controls are designed for use with rectifier operated dc brakes or solenoid operated ac brakes

The standard single motor reversing hoist controller consists of equipment for afrequency relay plugging The standard single motor reversing dynamic lowering hoist controller consists of the equipment for a single motorreversing plugging controller with one additional type S three pole contactorprovided (CR) and a pneumatic timing delay is deleted (IA)NOTE DUPLEX CONTROLLERS ARE NOT AVAILABLE

The standard single motor reversing plugging controller consistsof

1mdashTwo pole control molded case switch (MCB)1mdashThree pole magnetic main line circuit breaker with padlock clip

(LCB)2mdashType S three-pole directional contactors with mechanical

interlock (F R)3mdashType S three-pole acceleration contactors (including one for

plugging) (1A 2A P)2mdashPneumatic timing acceleration units (1A 2A)1mdashType SZF frequency relay for plugging (PR)1mdash460230 to 115 volt fused control circuit transformer (1mdashControl Circuit Rectifier (RECT)1mdashUndervoltage relay (UV)3mdashMagnetic inverse time overload relays (1OslashL 2OslashL 3OslashL1mdashSZF power loss protection relay circuit (SPR 2RECT 2MOV2RES)

Volts5060Hz

CraneRating

ContactorMaxAmperes

MaxHp

Primary SecondaryREVERSING AC

38067 100 30133 199 60

46067 100 40133 199 80

38067 100 30133 199 60

46067 100 40133 199 80

REVESING PLUGGING BRIDGE OR TROLLEY CONTROL

38067 100 30133 199 60

46067 100 40133 199 80

Select controller based on horsepower and rated primary and secondary current For

ORDERING INFORMATION REQUIRED

1 Class2 Type3 Motor Horsepower

4 Motor Primary Rated Voltage and Current5 Motor Secondary Rated Voltage and Current6 Controller Modifications Specify Form Numbers

CLASS

FRONTLINEreg AC CRANE CONTROL

SQUARE D CLASS 8502 TYPE S CONTACTORSreg

GENERAL INFORMATIONHOIST SERVICE

controllers are recommended for used with ac wound rotor motor on hoist and travel drives of general-purposedynamic lowering type when used on cranes without mechanical load brakes and are of the reversing

hoist type when used on cranes with mechanical load brakes The travel controllers are of the reversing plugging type Both the hoist and thefor use with rectifier operated dc brakes or solenoid operated ac brakes

BRIDGE OR TROLLEYThe standard single motor reversing hoist controller consists of equipment for a single motor reversing plugging controller

The standard single motor reversing dynamic lowering hoist controller consists of the equipment for a single motorS three pole contactor provided for dynamic lowering (DB) one additional control relay

pneumatic timing delay is deleted (IA)NOTE DUPLEX CONTROLLERS ARE NOT AVAILABLE

controller consists

Three pole magnetic main line circuit breaker with padlock clip

contactors with mechanical

(including one for

5 volt fused control circuit transformer (CTR)

1OslashL 2OslashL 3OslashL)SZF power loss protection relay circuit (SPR 2RECT 2MOV and

CLASS 8502 TYPE S CONTACTORS PNEUMATOC TIMING ACCELERATION CLASS 8501 TYPE SZF FREQUENCY RELAY FOR

PLUGGING

NEMAContactor

Size

NoSpeedPoints

OpenType

General PurposeEnclosure NEMAType 1 Gasketed

REVERSING AC DYNAMIC LOWERING HOIST CONTROL2 4 DOH71 DSH713 4 EOH71 ESH712 4 DOH71 DSH713 4 EOH71 ESH71REVERSING HOIST CONTROL2 4 DOH76 DSH763 4 EOH76 ESH762 4 DOH76 DSH763 4 EOH76 ESH76

REVESING PLUGGING BRIDGE OR TROLLEY CONTROL2 4 DOR76 DSR763 4 EOR76 ESR762 4 DOR76 DSR763 4 EOR76 ESR76

Select controller based on horsepower and rated primary and secondary current For explanation refer to Controller Ratings section of

ORDERING INFORMATION REQUIRED

4 Motor Primary Rated Voltage and Current5 Motor Secondary Rated Voltage and Current6 Controller Modifications Specify Form Numbers

7 Resistors Services Classification8 Master Switch Type and Form Number

September 2008

purpose overhead cranesout mechanical load brakes and are of the reversing

versing plugging type Both the hoist and the

reversing plugging controller but without SZFThe standard single motor reversing dynamic lowering hoist controller consists of the equipment for a single motor

one additional control relay

LASS 8502 TYPE S CONTACTORSPNEUMATOC TIMING ACCELERATION

FREQUENCY RELAY FOR

Outdoor EnclosureNEMA Type 3R

DWH71EWH71DWH71EWH71

DWH76EWH76DWH76EWH76

DWR76EWR76DWR76EWR76

refer to Controller Ratings section of Application Data

7 Resistors Services Classification8 Master Switch Type and Form Number

September 2008 FRONTLINE

WITH CLASSTRAVEL CONTROL

FRONTLINEreg AC CRANE CONTROL

WITH CLASS SQUARE D 8502 TYPE S CONTACTOTRAVEL CONTROL ELEMENTARY DIAGRAM

AC CRANE CONTROL

13

CLASS

8502 TYPE S CONTACTORS

CLASS

FRONTLINE

14

CLASS

WITH CLASS SQUARE DREVERSING HOIST

CLASS

FRONTLINEreg AC CRANE CONTROL

SQUARE D 8502 TYPE S CONTACTORSREVERSING HOIST ELMENTARY DIAGRAM

September 2008

September 2008 FRONTLINE

WITH CLASS SQUARE DDYNAMIC LOWERING HOI

FRONTLINEreg AC CRANE CONTROL

WITH CLASS SQUARE D 8502 TYPE S CONTACTODYNAMIC LOWERING HOIST ELEMENTARY DIAGRAM

AC CRANE CONTROL

15

CLASS

8502 TYPE S CONTACTORSDIAGRAM

CLASS

FRONTLINE

16

CLASS

APPROXIMATE DIMENSIOCLASS 8502 TYPE S CO

OPEN TYPE

DriveMaximum

HP(Volts)

Open Type

Hin

mm

Win

mm

Hoist orTravel

20(380)

401016

24607

40(460)

401016

24607

40(380)

401016

30762

80(460)

401016

30762

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMENSIONS AND WEIGHTSCLASS 8502 TYPE S CONTACTORS

ENCLOSED TYPE

Open Type Enclosed Type

Cin

mm

NetWeightlbskg

Hin

mm

Win

mm

85216

1506842

106730762

85216

1506842

106730762

10254

2009142

106736914

10254

2009142

106736914

September 2008

ENCLOSED TYPE

Enclosed Type

Din

mm

NetWeightlbskg

15381

300136

15381

300136

15381

385175

15381

385175

September 2008 FRONTLINE

A set of TABWELDreg resistors are required forapplications

RESISTOR APPLICATION

For resistors mounted in racks unwired ndash refer to Class 6715

Class 151 and 152 is recommended for light crane duty

Class 161 and 162 is recommended for standard duty

Class 171 and172 is recommended for severe duty

For explanation of NEMA resistor classifications

CLASS 6715 RESISTORS

To order an AC acceleration resistor set for use with duplex Cpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V andat 67A

Controller Class EnclosureMotorRating

ControlScheme

Code Type Code Code

6420 A0None N

ldquoHrdquo(HP)

6421 A16422 A2

Open O6426 A6

Hoist6435

A7Nema

1G

ldquoKrdquo(kw)

Travel6435

A8Nema

3RW

CustomerDesign

A99NemaScreenCovers

C

NEMA ClassSpeed Points

System VoltageMotor Rated Voltage

Class 6715

Controller TypeEnclosure

Motor Power

Motor ConfigurationRotor Volts

Rotor Amps

FRONTLINEreg AC CRANE CONTROL

SELECTION AND APPLICATIONe required for each AC motor control The following table is for selecting resistor for all AC motor control

RESISTOR APPLICATION

refer to Class 6715

Class 151 and 152 is recommended for light crane duty

Class 161 and 162 is recommended for standard duty

Class 171 and172 is recommended for severe duty

For explanation of NEMA resistor classifications ndash refer to Class 6715

CLASS

CLASS 6715 RESISTORS SELECTION TABLE

EXAMPLE AC RESISTOR SETTo order an AC acceleration resistor set for use with duplex CONTRA-TORQUE hoist (2 motors in parallel) NEMA 161 duty cycle 5 speedpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V and

CLASS 6715 RESISTOR SELECTION TABLE

NEMA DUTYSpeedPoints

NO

SystemVoltage

MotorRated

Voltage

Class Code Code V Code V Code

151 A3 208 2 208 2152 B

161 C

162 D4 380 3 380 3171 E

172 F91 G

5460 4 460 4

92 H

CustomerDesign

CS 575 5 575 56

4 4A2 G 37K C 5Class 6715

AC CRANE CONTROL

17

CLASS

The following table is for selecting resistor for all AC motor control

6715

hoist (2 motors in parallel) NEMA 161 duty cycle 5 speedpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V and rotor amps

MotorConfiguration

Ro

tor

Ro

tor

Code Type Code

Simplex S

Vo

lts

Am

psDuplex D

Quadruplex Q

4 D 350V 67A

CLASS

FRONTLINE

18

CLASS

APPROXIMATE NUMBER OCLASS 6715 TABWELD R

This tabulation is based on ECampM resistor designs for use with Class 6420 6421 6422 6426 controllerstabulation is for typical drive loading and for motors with standard NEMA secondary values of voltage andconsult factory with actual motor data

Max HPRating Single

Motor

6420Hoist

161 171 152

5 2 2 1

7 12 2 2 1

10 2 2 1

15 2 3 2

20 3 3 2

25 2 3 2

30 3 3 2

40 3 4 2

50 4 6 2

60 4 6 3

75 6 12 4

100 7 9 4

125 8 12 6

150 12 15 6

200 12 18 9

250 12 21 9

This tabulation is based on ECampM resistor designs for use with Class 6435drive loading and for motors with standard NEMA secondary values of voltage and

MaximumHP

HoistDynamic Lowering

NEMA Class152 162

5 1 175 1 110 1 215 2 220 2 225 2 330 2 340 3 350 3 460 3 475 4 6

NEMA SERVICE CLASSIF

Standard 6435 controllers meet the requirements of NEMA Services Crequirements of NEMA service classifications I (CMAA Sspeed point modification Form M3

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE NUMBER OF SEPARATELY MOUNTED STANDARSCLASS 6715 TABWELD RESISTOR SECTIONS (265rdquo LONG)

resistor designs for use with Class 6420 6421 6422 6426 controllers and is for estimatetabulation is for typical drive loading and for motors with standard NEMA secondary values of voltage and current For act

6421Hoist

6422Hoist

162 172 161 171 152

1 1 2 2 1

1 2 2 2 1

2 2 3 3 1

2 2 3 4 2

2 2 4 5 2

2 3 4 6 2

2 3 5 7 2

2 3 6 7 3

2 4 7 9 3

3 4 8 9 3

4 6 9 13 4

5 7 12 18 4

6 9 14 21 7

6 9 18 30 9

9 12 24 36 9

12 15 30 42 12

r designs for use with Class 6435 controller and is for estimate only This tabulation is fordrive loading and for motors with standard NEMA secondary values of voltage and current For actual quantities consult factory

HoistReversing

TravelReverse Plugging

NEMA Class NEMA Class152 162 1521 1 11 1 11 1 11 2 11 2 22 3 22 3 33 3 33 4 33 4 44 6 4

NEMA SERVICE CLASSIFICATIONS

meet the requirements of NEMA Services Classification II (CMAA service classifications A2 and B) to meet theervice classifications I (CMAA Service Classifications A1 C D E and F) the controller must be priced with the 5

September 2008

STANDARS

estimate only Thiscurrent For actual quantities

6426Hoist Bridge or Trolley

162 172

1 1

1 1

1 2

2 2

2 2

2 3

3 3

3 4

4 4

4 4

4 5

6 9

9 9

9 12

12 15

15 18

This tabulation is for typicalFor actual quantities consult factory

TravelReverse Plugging

NEMA Class162

11222334456

lassification II (CMAA service classifications A2 and B) to meet theE and F) the controller must be priced with the 5th

September 2008 FRONTLINE

MASTER SWITCHES AND

Class 9004 Type VGMaster Switch

CLASS 9004 VM OR CM

Control Class Speed Points

6420556

642156

642256

6426556

Motion Speed PointsHoist

(Dynamic Lowering)45

Hoist(Reversing)

45

Travel(Reverse Plugging)

45

Refer to Class 9004 catalog for more information

FRONTLINEreg AC CRANE CONTROL

GENERAL INFORMATIONMASTER SWITCHES AND MODIFICATIONS

Class 9004 Type CGMaster Switch

CLASS 9004 VM OR CM NEMA 1 ENCLOSED

oints Form VM TYPE

C1VG9

VG12

B1VG12VG16

D1VG12VG16

A1VG9

VG12

CONTROL 6435Form MA VM

A2AG9 VG9AG9 VG9

A3AG6 VG6AG9 VG9

A3AG6 VG6AG9 VG9

Refer to Class 9004 catalog for more information

AC CRANE CONTROL

19

CLASS

Class 9004 Type CGMaster Switch

CM TYPE

CG12CG12CG12CM16CG12CG16

CG12CG12

VM CMVG9 CG8VG9 CG12VG6 CG6VG9 CG8VG6 CG6VG9 CG8

CLASS

FRONTLINE

20

CLASS

GENERALMANUAL MAGNETIC DISC

The manual magnetic disconnect switch is used for protecting electrical crane circuits exOHSA requirements for a crane disconnect switchThe standard disconnect switch consists of

3mdashClass 8503 Type M form Y781 (with silver faced power contacttips) SPNO contactors The contactors are mechanically tiedOne normally open and one normally closed electricalinterlocks are included for indicating lights

1mdashTwo pole control molded case switch with padlock clip (1mdash460380230 to 255 volt fused control circuit transformer (1mdashIntermediate relay (CR)1mdashClass 9999AI1 Arc Suppressor

Volts5060Hz

NEMAContactor

Size

MaxAmperes

380or

460

4 1505 3006 6008 1350

Form

F30A

3 Main Line Power FusesStart-Stop Push Button

X11Additional Control CircuitNC interlocks can be added

A3 ldquoOnOffrdquo PushbuttonP1 Red ldquoOnrdquo Pilot LightP2 Green ldquoOffrdquo Pilot LightT12 200VA Additional Transformer Capacity

Class L fuse mounting is standard Customer

PILOT DEVICESThe pilot devices should be selected so the current rating is adequate for controlling the disconnect switch For coil9998 Coil Data catalog sheets An arc inhibitor may be required depending upon the ra

DISCONNEWhen applied to cranes the continuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated currentrequired by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

ORDERING INFORMATION REQUIRED1 Class2 Type3 Voltage4 Controller Modifications Specify Form

CLASS

FRONTLINEreg AC CRANE CONTROL

GENERAL INFORMATIONMANUAL MAGNETIC DISCONNECTS SWITCHES

etic disconnect switch is used for protecting electrical crane circuits except lifting magnet circuits The disconnect meets

ype M form Y781 (with silver faced power contacttips) SPNO contactors The contactors are mechanically tiedOne normally open and one normally closed electrical

case switch with padlock clip (CMCS)volt fused control circuit transformer (CTR)

CAM OPERATOR PREVENTSFROM CLOSING WHEN HANDLE IS IN OFFPOSITION

CONTACTORS OPERATED REMOTELY OR BYHANDLE ON THE ENCLOSURE

Amperes

Enclosures

General PurposeNEMA Type 1 gasketed

Dusttight NEMA Type 12Outdoor NEMA Type 3R

MFS12 MFA12MGS12 MGA12MHS12 MHA12MKS12 MKA12

MODIFICATIONSDescription

Main Line Power FusesStop Push Button

Additional Control Circuit Interlocks A maximum of 4 NONC interlocks can be added

Offrdquo PushbuttonRed ldquoOnrdquo Pilot LightGreen ldquoOffrdquo Pilot Light200VA Additional Transformer Capacity

Class L fuse mounting is standard Customer is to supply fuse rating

PILOT DEVICES SELECTIONThe pilot devices should be selected so the current rating is adequate for controlling the disconnect switch For coil currents9998 Coil Data catalog sheets An arc inhibitor may be required depending upon the ratings of the pilot device

DISCONNECT SWITCH SELECTIONcontinuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated current

required by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

September 2008

t lifting magnet circuits The disconnect meets

AM OPERATOR PREVENTS CONTACTORFROM CLOSING WHEN HANDLE IS IN OFF

ORS OPERATED REMOTELY OR BYHANDLE ON THE ENCLOSURE

currents refer to Class

continuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated currentrequired by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

September 2008 FRONTLINE

MANUAL MAGNETIC DISC

FRONTLINEreg AC CRANE CONTROL

MANUAL MAGNETIC DISCONNECT ELEMENTARY DIAGRA

AC CRANE CONTROL

21

CLASS

AGRAM

CLASS

FRONTLINE

22

CLASS

APPROXIMATE DIMESION

NEMASize

ContinuousAmpereRating A B C D

4 15018457

5127

8203

19483

5 30014356

3589

45114

28711

6 60018457

5127

8203

19483

8 135014356

5127

8203

28712

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMESIONS AND WEIGHTS

D E F G H J K L M

19483

30762

36914

2864727

315800

33838

3589

16229

36914

28711

33838

36914

267678

345876

36914

7178

72183

36914

19483

421067

421067

322818

4351105

451143

3589

10483

421067

28712

57838

441118

363922

345864

36914

70178

59137

741275

September 2008

M N

NetWeight

36914

15381

21096

36914

20508

235107

421067

20508

285130

741275

28508

300138

September 2008 FRONTLINE

MULTIMOTOR DRIVESTwo motors connected in parallel (duplex)control primary equipment and two sets of motor controlsecondary equipment are required in the controller Two sets ofpower resistors are also required

Four motors connected in parallel (quadruplex)necessary to double the duplex controller price given for twomotors in parallel One set of motor control primary and four setsof motor control secondary equipment are required Four sets opower resistors are required

CONTROLLERSNarrow width controllers ndash Most controllers ara narrow width construction These controllers when compared tostandard controllers are reduced width and increased height Fordetails see controller modifications and controller dimension

CONTROLLER MODIFICAT

Form Description

D6 Motor Isolating Circuit Breakers

B5 Brake Relay Reverse Plugging Controller Only

Y17 Arc Inhibitors Pendant Operated Controller

G95 Miniature Voltmeter Panel Mounted

G91 Miniature Ammeter Panel Mounted

E18 Narrow Width Panel

M24Substitute Type SZF Frequency Relay For ST1 StaticAcceleration Timers

H18Cabinet Space Heater Controlled By Interlock From MContactor

For Duplex Controllers For Duplex controllers multiply price by 2

1 Class2 Type3 Motor Horsepower4 Motor Primary Rated Voltage and Current

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATA

MULTIMOTOR DRIVESTwo motors connected in parallel (duplex) ndash One set of motorcontrol primary equipment and two sets of motor controlsecondary equipment are required in the controller Two sets of

Four motors connected in parallel (quadruplex) ndash It islex controller price given for two

motors in parallel One set of motor control primary and four setsof motor control secondary equipment are required Four sets of

CONTROLLERSMost controllers are also available in

a narrow width construction These controllers when compared tostandard controllers are reduced width and increased height For

see controller modifications and controller dimension

CONTROLLER MStandard controllers come equipped with the components listedSpecial features to be added to standard controllers are identifiedby Form number Most modifications are self

FORM D6 list motor isolation circuit breakers for use on duplexcontrollers For operation of the drive on one motor the motorline and connect breakers will disconnect one motor from the lineand connect the frequency relays to the power resistors of theother motor The brakes of the motor not in service are stillreleased electrically

FORM G95 lists a 3 frac12rdquo square miniature voltmeter to monitor onephase of motor primary voltage

FORM G9 lists a 3 frac12rdquo square miniature ammeter to monitor onephase of motor primary current Current transformersform are supplied Form G9 for motors above 10 HP20 HP 460 volts

CONTROLLER MODIFICATIONS

Brake Relay Reverse Plugging Controller Only

Arc Inhibitors Pendant Operated Controller

Substitute Type SZF Frequency Relay For ST1 Static

Cabinet Space Heater Controlled By Interlock From M

APPLICATION DATACLASS 6420 EDDYMAG

DYNAMIC MODEL AB-

MOTOR HPRATING

Brake Size

900 RMP Motors

Light DutyServices

SevereDutyServices

7 12 703

10 704

15 704

20 705

25 705

30 705

40 706

50 706

60 706

75 707

100 707

125 707

150 707200 708250 708300 708

ORDERING INFORMATION REQUIRED

5 Motor Secondary Rated Voltage andCurrent6 Controller Modifications Specify FormNumbers

7 Resistors Services Classification8 Master Switch Type and Form Number

AC CRANE CONTROL

23

CLASS

CLASS

CONTROLLER MODIFICATIONSStandard controllers come equipped with the components listedSpecial features to be added to standard controllers are identifiedby Form number Most modifications are self explanatory

list motor isolation circuit breakers for use on duplexcontrollers For operation of the drive on one motor the motorline and connect breakers will disconnect one motor from the lineand connect the frequency relays to the power resistors of the

motor The brakes of the motor not in service are still

lists a 3 frac12rdquo square miniature voltmeter to monitor one

lists a 3 frac12rdquo square miniature ammeter to monitor oneCurrent transformers with this

for motors above 10 HP 230 volt and

PPLICATION DATACLASS 6420 EDDYMAG HOIST

-FLOOR MOUNTED BRAKE

1200 RMP MotorsSevereDutyServices

Light DutyServices

SevereDutyServices

704 703 703

704 703 704

705 704 704

705 704 705

705 705 705

706 705 705

706 705 706

706 706 706

707 706 706

707 706 706

707 707 707

707 707 707

708 707 707708 707 708708 708 708--- 708 708

7 Resistors Services Classification8 Master Switch Type and Form Number

FRONTLINE

24

CLASS

CLASS

CRANE HOOK SPEED VS

CLASS 6421DYNAMIC LO

FIRST

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

O

FSY

NC

HR

ON

OU

SSP

EED

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

SY

NC

HR

ON

OU

SSP

PED

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATACRANE HOOK SPEED VS LOAD PERFORMANCE

CLASS 6420 EDDYMAGreg

CLASS 6421DYNAMIC LOWERING HOIST

FIRST

SECOND

THIRD

FOURTH

FIFTH

FIRST

SECOND

THIRD

FOURTH

FIFTH

40 60 80 100 120 140 160 180

LOAD PERFORMANCE IN OF SYNCHRONOUS SPEED

SECOND

THIRDFOURTH

FIFTH

FIRST

FIRST

SECOND amp THIRD

40 60 80 100 120 140 160 180

LOAD PERFORMANCE IN OF SYNCHRONOUS SPEED

September 2008

200

FIFTH

180 200

September 2008 FRONTLINE

CRANE HOOK SPEEDCLASS 6422 CONTRA

CLASS 6426

SECONDFIRST

FOURTH

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

O

FSY

NC

HR

ON

OU

SSP

EED

FIRST

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

SY

NC

HR

ON

OU

SSP

EED

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATACRANE HOOK SPEED VS LOAD PERFORMANCE

CLASS 6422 CONTRA-TORQUEreg

CLASS 6426 REVERSING HOIST CONTROL(With Mechanical Load Brake)

FIFTH

AUTOMATIC

FOURTH

THIRD

FIRST amp SECOND

SECOND

THIRD

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUS SPEED

SIXTH

SECOND

THIRD

FOURTH

FIFTH

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUSE SPEED

25

CLASS

CLASS

FIFTH

AUTOMATIC

FIRST amp SECOND

180 200

180 200

FRONTLINE

26

CLASS

AC CONTACTOR CONTROL

System AC Contactor Control

Crane Components

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switchradio controlReversing hoistsmechanical load brake gearboxAll other hoist stylesgearbox Best and critical positioning controlrequires E

ResistorsAcceleration resistor setSize based on HP amp duty cycle

Mo

tor

Perf

orm

an

ce

General

Velocity and acceleration is load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

More abrupt speed point

Slowdown

Travel Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

Hoist OFF point slowdown and braking withEddy-Current brakeDB circuitry

OFF Point

Travel No OFF point braking via control

Hoist OFF point braking by Eddybrake CONTRA

Reversing

Travel Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allowsoperation

Hoist Drive is stopped before each changein direction

Power ConsumptionPower dissipated in rotor resistors inspeed points

Component Wear

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Motors Encoders

Requires wound rotor motorNo encoder feedback

Motor blower not typically requiredoperation at reduced motor velocity as fulltorque is not available at zero speed

FRONTLINEreg AC CRANE CONTROL

AC CONTACTOR CONTROL vs DRIVES

AC Contactor Control Variable Frequency Drive

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switch and pendant orradio controlReversing hoists require worm gear ormechanical load brake gearbox

hoist styles require standardgearbox Best and critical positioning control

es Eddy-Current load brake

Inverter-duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limitpendant or radio controlOpen loop hoist controls require worm gear ormechanical load brake gearboxClosed loop hoist controlswith motor encoder feedback

Acceleration resistor set requiredSize based on HP amp duty cycle

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration is load dependantVelocity and acceleration are minimally (open(closed loop) load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

More abrupt speed point transitions Smooth speed point transitions

Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

OFF point slowdown and braking withurrent brake CONTRA-TORQUEreg or

DB circuitry

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

No OFF point braking via control

OFF point braking by Eddy-CurrentCONTRA-TORQUEreg or DB circuitry

OFF point Dynamic Braking (DB)deceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allows reacceleration after relayoperation

Drive is stopped before each changein direction

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speedachieved

Power dissipated in rotor resistors in lowspeed points

Uses less power at reduced velocity and duringacceleration

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Power contactors eliminatedMotor current switched by solidSpare drive recommended

Requires wound rotor motorNo encoder feedback required

Inverter-duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Motor blower not typically required foroperation at reduced motor velocity as fulltorque is not available at zero speed

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and highduty cycles

September 2008

Frequency Drive

duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limit switches master switch

require worm gear ormechanical load brake gearbox

require standard gearbox butwith motor encoder feedback

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration are minimally (open loop) or not(closed loop) load dependant

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

Smooth speed point transitions

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

OFF point Dynamic Braking (DB) with programmabledeceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speed

Uses less power at reduced velocity and during

Power contactors eliminatedMotor current switched by solid-state componentsSpare drive recommended

duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and high

September 2008 FRONTLINE

CLASS 5010 WB DRUM BRAKES

AIST rated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Hold drive stationary when motor is off

Available in 8rdquo to 30rdquo wheel diameters

Torque ratings 100 through 9000 ft-lbs

Corrosion resistant pins are standard on all brake sizes

Grease fittings are standard on 19rdquo 23rdquo and 30rdquo brake sizes

Available with optional self-adjuster

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

AIST rated and suitable for all crane classes

Used on bridge and trolley (horizontal travel) drives

Provide fixed holding torque for parking

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000

Stopping torque ratings up to 300 850 and 1500

Available for AC or DC control systems

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL(Contactor) CONTROLS

Hoist drive styles include Eddy-Current Brakeand Reversing Hoist controls

Reversing Plugging control for bridge and trolley (travel) drives

Meets NEMA Service Classification I

Available in NEMA contactor sizes 2 through 6

Numerous modifications available

Uses Class 8503 Type M Line-ARCreg contactors static timers

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

Meet OSHAamp NEC requirements for AC

Available in continuous ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by

Mechanical amp electrical interlocks prevent switch

CLASS 6170 YOUNGSTOWNreg

HOIST POWER LIMIT SWITCHES

Final safety limits for hoist upper travel

Interrupts motor power directly

Available in ratings up to 500HP at 230VDC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER

FRONTLINEreg AC CRANE CONTROL

ated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Corrosion resistant pins are standard on all brake sizes

andard on 19rdquo 23rdquo and 30rdquo brake sizes

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

ated and suitable for all crane classes

travel) drives

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000 ft-lbs respectively

Stopping torque ratings up to 300 850 and 1500 ft-lbs respectively

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL

Current Brake CONTRA-TORQUEreg AC Dynamic Lowering

bridge and trolley (travel) drives

Available in NEMA contactor sizes 2 through 6 through 300HP for single or multiple motors

contactors static timers and frequency relays for acceleration

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

crane disconnect switch

ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by the enclosure handle

Mechanical amp electrical interlocks prevent switch operation with handle in the OFF position

HOIST POWER LIMIT SWITCHES

to 500HP at 230VDC or up to 400HP at 460VAC and 550VAC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on-line at wwwECandMnet

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER MILL DUTY CONTROL COMPONENTS27

CLASS

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

FRONTLINE

28

CLASS

FRONTLINEreg AC CRANE CONTROL

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

copyCopyright The Electric Controller and Manufacturing Company LLCPrinted in the USA

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

September 2008

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

copyCopyright The Electric Controller and Manufacturing Company LLC 2007

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

Page 2: Ac Crane Control

FRONTLINE

2

CLASS

GENERAL INFORMATION

Class 6420 reversing EDDYMAGreg controllers are recommended for use with ac wound rotor motors and eddy current electric load brakes oncrane hoist drives without mechanical load brakes All controllers are arranged for use with rectifier operated dc shunt braoperated ac brakes

The standard single motor reversing EDDYMAGreg controllerconsists of

1mdashTwo pole control molded case switch (CMCS)1mdashThree pole magnetic main line circuit breaker with padlock clip

LCB)2mdashType M two-pole contactors with mechanical interlock for

hoisting and lowering circuits (H L)1mdashType M two-pole main contactor (M)5 or 6mdashType M two-pole acceleration contactors

(1A 2A 3A 4A 5A 6A)2 or 3mdashType ST1 static acceleration timers (3AR 4AR1mdash460380230 to 255 volt fused control circuit transformer

(CTR)1mdashControl Circuit Rectifier (RECT)1mdashType KFO under voltage relay (UV)1mdashPneumatic timing transition relay (TR)1mdashControl relay to detect loss of eddy current brake excitation

(ACDC)1mdashSet of static eddy current brake control equipment (ECBM)3mdashType AO magnetic inverse time overload relays

(1OslashL 2OslashL 3OslashL)1mdashType SZF acceleration relay (5AR)1mdashSZF power loss protection relay circuits

(SPR 2RECT 2MOV 2RES)

Voltage3Ǿ

5060Hz

CraneRating

NEMAContactor

SizeMax

AmperesMaxHp

Primary Secondary

380

67 30 2 2133 60 3 3200 100 4 4400 150 5 5400 200 5 5

460

67 40 2 2133 80 3 3200 125 4 4400 200 5 5400 300 5 5

Select controller based on horsepower and rated primary and secondary current For These controllers have six speed points available but are used with fivediams These controllers have seven speed points available but are used with six

ORDERING INFORMATION REQUIRED See Page 23MODIFICATIONS See Page

FRONTLINEreg AC CRANE CONTROL

GENERAL INFORMATIONEDDYMAGreg

HOIST SERVICEcontrollers are recommended for use with ac wound rotor motors and eddy current electric load brakes on

crane hoist drives without mechanical load brakes All controllers are arranged for use with rectifier operated dc shunt bra

controller

t breaker with padlock clip

with mechanical interlock for

Type ST1 static acceleration timers (3AR 4AR 5AR)sformer

Control relay to detect loss of eddy current brake excitation

(ECBM)

PROVIDES SLOW HOISTING AND LOWERING SPEEDSFOR ALL LOADS

MILL DUTY CLASS 8503 TYPE M CLAPPER TYPECONTACTORS

CLASS 7001 TYPE ST1 STATIC ACCELERATION TIMERS REQUIRES EDDY CURRENT ELECTRIC LOAD BRAKE

NoSpeedPoints

OpenType

General PurposeEnclosure NEMAType 1 Gasketed

Outdoor EnclosureNEMA Type 3R

Secondary

SINGLE MOTOR CONTROL

5 DOH70 DSH70 DWH705 EOH70 ESH70 EWH705 FOH70 FSH70 FWH705 GOH70 GSH70 GWH706diams GOH90 GSH90 GWH90

5 DOH70 DSH70 DWH705 EOH70 ESH70 EWH705 FOH70 FSH70 FWH705 GOH70 GSH70 GWH706diams GOH90 GSH90 GWH90

Select controller based on horsepower and rated primary and secondary current For explanation refer to Controller Ratings section of Application Dts available but are used with five speed point master switches the last acceleration point being relay controlled

but are used with six speed point master switches the last acceleration point being relay controlled

See Page 23See Page 24

APPLICATION INFORMATIONDIMENSIONAL INFORMATION

September 2008

controllers are recommended for use with ac wound rotor motors and eddy current electric load brakes oncrane hoist drives without mechanical load brakes All controllers are arranged for use with rectifier operated dc shunt brakes or solenoid

AND LOWERING SPEEDS

MILL DUTY CLASS 8503 TYPE M CLAPPER TYPE

TYPE ST1 STATIC ACCELERATION TIMERSS EDDY CURRENT ELECTRIC LOAD BRAKE

Outdoor EnclosureDusttight

Enclosure NEMAType 12

DAH70EAH70FAH70GAH70GAH90

DAH70EAH70FAH70GAH70GAH90

Controller Ratings section of Application Datapoint master switches the last acceleration point being relay controlled

ches the last acceleration point being relay controlled

APPLICATION INFORMATION See Pages 23-25DIMENSIONAL INFORMATION See Pages 10amp11

September 2008 FRONTLINE

EDDYMAG

FRONTLINEreg AC CRANE CONTROL

EDDYMAGreg HOIST ELEMENTARY

AC CRANE CONTROL

3

CLASS

FRONTLINE

4

CLASS

AC DYNAMIC LOWERINGGENERAL INFORMATION

Class 6421 reversing dynamic lowering controllers are recommended for use with ac wound rotor motors on crane hoist without mechanicalload brakes All controllers are arranged for use with rectifier operated dc shunt brakes or solenoid

The standard single motor reversing dynamic loweringconsists of

1mdashTwo pole control molded case switch (CMCS)1mdashThree pole magnetic main line circuit breaker with padlock clip

(LCB)4mdashType M two-pole contactors with mechanical interlock for

hoisting and lowering circuits (H L DB M)5 or 6mdashType M two-pole acceleration contactors

(1A 2A 3A 4A 5A 6A)3 4 or 5mdashType SZF static acceleration relays

(2AR 3AR 4AR 5AR)1mdash460380230 to 255 volt fused control circuit transformer

(CTR)1mdashControl Circuit Rectifier (RECT)1mdashType KFO under voltage relay (UV)1mdashBrake relay (BR)1mdashPneumatic timing transition relay (TR)3mdashType AO magnetic inverse time overload relays

(1OslashL 2OslashL 3OslashL)1mdashSZF power loss protection relay circuits

(SPR 2RECT 2MOV 2RES)

Volts3Ǿ

5060Hz

CraneRating

NEMAContactor

SizeMax

AmperesMaxHp

Primary Secondary

380

67 30 2 2133 60 3 3200 100 4 4400 150 5 5400 200 5 5

460

67 40 2 2133 80 3 3200 125 4 4400 200 5 5400 300 5 5

Select controller based on horsepower and rated primary and secondary current ForThese controllers have six speed points available but are used with 5point master switches the last aThese controllers have seven speed points available but are used with 6point master switches the last acceleratio

ORDERING INFORMATION REQUIRED See Page 23MODIFICATIONS See Page 24

CLASS

FRONTLINEreg AC CRANE CONTROL

AC DYNAMIC LOWERINGGENERAL INFORMATION

HOIST SERVICEreversing dynamic lowering controllers are recommended for use with ac wound rotor motors on crane hoist without mechanical

load brakes All controllers are arranged for use with rectifier operated dc shunt brakes or solenoid operated ac brakes

controller

Three pole magnetic main line circuit breaker with padlock clip

contactors with mechanical interlock for

d control circuit transformer

USES SINGLE PHASE MOTOR CONNECTION FORDYNAMIC LOWERING

SUITABLE FOR APPLICATIONS NOT REQUIRING SLOWLOWERING SPEED

MILL DUTY CLASS 8503 TYPE M CLAPPER TYPECONTACTORS

CLASS 8501 TYPE SZF STATIC ACCELERATION TIMERS

NoSpeedPoints

OpenType

General PurposeEnclosure NEMAType 1 Gasketed

Outdoor EnclosureNEMA Type 3R

Secondary

SINGLE MOTOR CONTROL

5 DOH71 DSH71 DWH715 EOH71 ESH71 EWH715 FOH71 FSH71 FWH715 GOH71 GSH71 GWH716diams GOH91 GSH91 GWH91

5 DOH71 DSH71 DWH715 EOH71 ESH71 EWH715 FOH71 FSH71 FWH715 GOH71 GSH71 GWH716diams GOH91 GSH91 GWH91

Select controller based on horsepower and rated primary and secondary current For explanation refer to Controller Ratings section of Application Dcontrollers have six speed points available but are used with 5point master switches the last acceleration point being relay controlledcontrollers have seven speed points available but are used with 6point master switches the last acceleration point being relay controlled

See Page 23See Page 24

APPLICATION INFORMATIONDIMENSIONAL INFORMATION

September 2008

reversing dynamic lowering controllers are recommended for use with ac wound rotor motors on crane hoist without mechanical

USES SINGLE PHASE MOTOR CONNECTION FOR

S NOT REQUIRING SLOW

MILL DUTY CLASS 8503 TYPE M CLAPPER TYPE

E SZF STATIC ACCELERATION TIMERS

Outdoor EnclosureDusttight

Enclosure NEMAType 12

DAH71EAH71FAH71GAH71GAH91

DAH71EAH71FAH71GAH71GAH91

Application Datacceleration point being relay controlled

n point being relay controlled

APPLICATION INFORMATIONSee Pages 23-25DIMENSIONAL INFORMATIONSee Pages 10amp11

September 2008 FRONTLINE

DYNAMIC LOWERING ELE

FRONTLINEreg AC CRANE CONTROL

DYNAMIC LOWERING ELEMENTARY DIAGRAM

AC CRANE CONTROL

5

CLASS

MENTARY DIAGRAM

CLASS

FRONTLINE

6

CLASS

GENERAL

Class 6422 reversing CONTRA-TORQUEreg controllers are recommendedmechanical load brakes but with fixed overhauling loads such as bucket crane hoistoperated dc shunt brakes or solenoid operated ac brakes

The standard single motor reversing CONTRA-TORQUEcontroller consists of

1mdashTwo pole control molded case switch (CMCS)1mdashThree pole magnetic main line circuit breaker with padlock clip

(LCB)2mdashType M two-pole contactors with mechanical interlock for

hoisting and lowering circuits (H L)1mdashType M two-pole main contactor (M)5 or 6mdashType M two-pole acceleration contactors

(1A 2A 3A 4A 5A 6A)5 or 6mdashType SZF frequency relays

(3AR 4AR 5AR 6AR OS NH)1mdash460380230 to 255 volt fused control circuit transformer

(CTR)1mdashControl Circuit Rectifier (RECT)1mdashType KFO under voltage relay (UV)2mdashPneumatic timing relays for counter-torque and lowering

relays (CTR LR)1mdashPneumatic timing transition relay (TR)3mdashType AO magnetic inverse time overload relays

(1OslashL 2OslashL 3OslashL)1mdashSZF power loss protection relay circuits

(SPR 2RECT 2MOV 2RES)

Volts5060Hz

CraneRating

NEMAContactor

SizeMax

AmperesMaxHp

Primary Secondary

380

67 30 2 2133 60 3 3200 100 4 4400 150 5 5400 200 5 5

460

67 40 2 2133 80 3 3200 125 4 4400 200 5 5400 300 5 5

Select controller based on horsepower and rated primary and secondary current ForThese controllers have six speed points available but are used withdiamsThese controllers have seven speed points available but are used with 6point master switches the last acceleration point being rel

ORDERING INFORMATION REQUIRED See Page 23MODIFICATIONS See Page

CLASS

FRONTLINEreg AC CRANE CONTROL

CONTRA-TORQUEreg

GENERAL INFORMATIONHOIST SERVICE

controllers are recommended for use with ac wound rotor motors on crane hoistbut with fixed overhauling loads such as bucket crane hoists All controllers are arranged for use with rectifier

operated dc shunt brakes or solenoid operated ac brakes

TORQUEreg

ine circuit breaker with padlock clip

contactors with mechanical interlock for

volt fused control circuit transformer

and lowering

PROVIDES SLOW LOWERING SPEEDS FOROVERHAULING LOADS ONLY

MILL DUTY CLASS 8503 TYPE M CLAPPER TYPECONTACTORS

CLASS 8501 TYPE SZF STATIC ACCELERATION TIMERS

NoSpeedPoints

OpenType

General PurposeEnclosure NEMAType 1 Gasketed

Outdoor EnclosureNEMA Type 3R

Secondary

SINGLE MOTOR CONTROL

5 DOH72 DSH72 DWH725 EOH72 ESH72 EWH725 FOH72 FSH72 FWH725 GOH72 GSH72 GWH726diams GOH92 GSH92 GWH92

5 DOH72 DSH72 DWH725 EOH72 ESH72 EWH725 FOH72 FSH72 FWH725 GOH72 GSH72 GWH726diams GOH92 GSH92 GWH92

Select controller based on horsepower and rated primary and secondary current For explanation refer to Controller Ratings section ofcontrollers have six speed points available but are used with 5point master switches the last acceleration point being relay controlledcontrollers have seven speed points available but are used with 6point master switches the last acceleration point being relay controlled

See Page 23See Page 24

APPLICATION INFORMATIONDIMENSIONAL INFORMATION

September 2008

for use with ac wound rotor motors on crane hoists withoutarranged for use with rectifier

LOWERING SPEEDS FOR

MILL DUTY CLASS 8503 TYPE M CLAPPER TYPE

STATIC ACCELERATION TIMERS

Outdoor EnclosureDusttight

Enclosure NEMAType 12

DAH72EAH72FAH72GAH72GAH92

DAH72EAH72FAH72GAH72GAH92

Controller Ratings section of Application Data5point master switches the last acceleration point being relay controlled

ay controlled

APPLICATION INFORMATION See Pages 23-25DIMENSIONAL INFORMATION See Pages 10amp11

September 2008 FRONTLINE

CONTRA

FRONTLINEreg AC CRANE CONTROL

CONTRA-TORQUEreg ELEMENTARY DIAGRAM

AC CRANE CONTROL

7

CLASS

CLASS

FRONTLINE

8

CLASS

REVERSING PLUGGINGClass 6426 controllers are recommended for used withThe hoist controllers are of the reversing hoist type and are used on cranes with mechanical load brakes Thereversing plugging type Both the hoist and the travel controlleroperated ac brakes

The standard single motor reversing hoist controller consists of equipment for a reversing plugging controllerfor plugging (PR)

BRIDGE OR TROLLEY SE

The standard single motor reversing controller consists of

1mdashTwo pole control molded case switch (CMCS)1mdashThree pole magnetic main line circuit breaker with padlock clip

(LCB)2mdashType M two-pole contactors with mechanical interlock1mdashType M two-pole main contactor (M)4 or 5 or 6Type M two-pole acceleration contactors (including one

for plugging) (P 1A 2A 3A 4A 5A 6A)3 or 4 or 5Type ST1 static acceleration timers

(1AR 2AR 3AR 4AR 5AR)1mdashType SZF frequency relay for plugging (PR)1mdash460380230 to 255 volt fused control circuit transformer

(CTR)1mdashControl Circuit Rectifier (RECT)1mdashType KFO under voltage relay (UV)3mdashType AO magnetic inverse time overload relays

(1OslashL 2OslashL 3OslashL)

1mdashSZF power loss protection relay circuit(SPR 2RECT 2MOV 2RES)

The standard duplex reversing plugging controller consists of theequipment for a single motor controller with the exceptionfollowing equipment is added4 or 5mdashType M two-pole acceleration contactors

(2P 21A 22A 23A 24A)3mdashType AO magnetic inverse time overload relays

(4OslashL 5OslashL 6OslashL)

Volts5060Hz

CraneRating

NEMAContactor

Size

MaxAmperes

MaxHp

Primary Secondary

Primary Secondary

380

67 67 30 2 2133 133 60 3 3200 200 100 4 4400 400 150 5 5400 400 200 5 5

460

67 67 40 2 2133 133 80 3 3200 200 125 4 4400 400 200 5 5400 400 300 5 5

380

67 67 30 2 2133 133 60 3 2200 200 100 4 3400 400 150 5 4400 400 200 5 5

460

67 67 40 2 2133 67 80 3 2200 133 120 4 3400 200 200 5 4400 400 300 5 5

Select controller based on motor horsepower and rated primary and secondary current FordiamsPrice is for single motor reversing plugging or reversing hoist For reversing hoist change theThese controllers have 6 speed points available but are used with 5point master switches the last acceleration point beingThese controllers have seven speed points available but are used with 6point master swit

ORDERING INFORMATION REQUIRED See Page 23MODIFICATIONS See Page 24

CLASS

FRONTLINEreg AC CRANE CONTROL

REVERSING PLUGGING CONTROLfor used with ac wound rotor motor on hoist and travel drives of general-purpose

The hoist controllers are of the reversing hoist type and are used on cranes with mechanical load brakes The travel panels are of thecontrollers are arranged for use with rectifier operated dc shunt brakes or solenoid

HOIST SERVICEThe standard single motor reversing hoist controller consists of equipment for a reversing plugging controller but without

BRIDGE OR TROLLEY SERVICE

The standard single motor reversing controller consists of

Three pole magnetic main line circuit breaker with padlock clip

contactors with mechanical interlock (F R)

including one

volt fused control circuit transformer

rsing plugging controller consists of thefor a single motor controller with the exception that the

MILL DUTY CLASS 8503 TYPE M CLAPPER TYPECONTACTORS

CLASS 8501 TYPE SZF FREQUENCY ACCELERATIONRELAYS FOR PLUGGING

CLASS 7001 TYPE ST1 STATICACCELERATION TIMERS

NoSpeedPoints

OpenType

General PurposeEnclosure NEMAType 1 Gasketed

Outdoor EnclosureNEMA Type 3R

Secondary

SINGLE MOTOR CONTROL

5 DOR76 DSR76 DWR765 EOR76 ESR76 EWR765 FOR76 FSR76 FWR765 GOR76 GSR76 GWR766 GOR96 GSR96 GWR96

5 DOR76 DSR76 DWR765 EOR76 ESR76 EWR765 FOR76 FSR76 FWR765 GOR76 GSR76 GWR766 GOR96 GSR96 GWR96

DUPLEX MOTOR CONTROL5 DOR86 DSR86 DWR865 EOR86 ESR86 EWR865 FOR86 FSR86 FWR865 GOR86 GSR86 GWR865 GOR106 GSR106 GWR106

5 DOR86 DSR86 DWR865 EOR86 ESR86 EWR865 FOR86 FSR86 FWR865 GOR86 GSR86 GWR865 GOR106 GSR106 GWR106

Select controller based on motor horsepower and rated primary and secondary current For explanation refer to Controller Ratings section of Application DataPrice is for single motor reversing plugging or reversing hoist For reversing hoist change the R in the type to an H

These controllers have 6 speed points available but are used with 5point master switches the last acceleration point being relay controlledThese controllers have seven speed points available but are used with 6point master switches the last acceleration point being relay controlled

See Page 23See Page 24

APPLICATION INFORMATIONDIMENSIONAL INFORMATION

September 2008

purpose overhead cranespanels are of the

r operated dc shunt brakes or solenoid

out SZF frequency relay

MILL DUTY CLASS 8503 TYPE M CLAPPER TYPE

CLASS 8501 TYPE SZF FREQUENCY ACCELERATION

STATICACCELERATION TIMERS

DusttightEnclosure NEMA

Type 12

DAR76EAR76FAR76GAR76GAR96

DAR76EAR76FAR76GAR76GAR96

DAR86EAR86FAR86GAR86

GAR106

DAR86EAR86FAR86GAR86

GAR106Application Data

APPLICATION INFORMATION See Pages 23-25DIMENSIONAL INFORMATION See Pages 10amp11

September 2008 FRONTLINE

REVERSING PLUGGING E

FRONTLINEreg AC CRANE CONTROL

REVERSING PLUGGING ELEMENTARY DIAGRAM

AC CRANE CONTROL

9

CLASS

LEMENTARY DIAGRAM

CLASS

FRONTLINE

10

CLASS

CLASS

APPROXIMATE DIMENSIOSINGLE AND DUPLEX MOTOR CONTROL STANDA

OPEN TYPE

MAXIMUM HP

460V 380VHin

mm

HOISTClasses6420 amp6422

40 3048

1219

80 6048

1219

125 10048

1219200 150

NOT A300 200

HOISTClasses6421 amp6426

ampBridge orTrolleyClass6426

40 3048

1219

80 6048

1219

125 10048

1219

NOT A200 150

300 200

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMENSIONS AND WEIGHTSMOTOR CONTROL STANDARD CONTROLLERS

ENCLOSED TYPE

OPEN TYPE ENCLOSED TYPE

Win

mm

Cin

mm

NETWeightLbskg

Win

mm

Cin

mm

SINGLE MOTOR CONTROL69

175312305

52523848

121969

175369

175312305

70031848

121969

175369

175312305

70031848

121969

1753

NOT AVAILABLE IN STANDARD DIMENSIONS SEE NARROW WIDTH DIM

DUPLEX MOTOR CONTROL69

175312305

50022748

121969

175369

175312305

70031848

121969

175369

175312305

70031848

121969

1753

NOT AVAILABLE IN STANDARD DIMENSIONS SEE NARROW WIDTH DIM

September 2008

RD CONTROLLERS

ENCLOSED TYPE

ENCLOSED TYPE

Din

mm

NETWeightLbskg

15381

750341

15381

900409

15381

900409

SEE NARROW WIDTH DIMENSIONS

15381

700318

15381

900409

15381

900409

SEE NARROW WIDTH DIMENSIONS

September 2008 FRONTLINE

APPROXIMATESINGLE AND DUPLEX

OPEN TYPE

DRIVE

MAXIMUM HP

460V 380Vmm

HOIST(All Classes)and Bridge

Trolley

40 30

80 601727

125 1001727

200 1501981

300 2001981

CLASS 6426Bridge and

Trolleyonly

40 30

80 601727

125 1001727

200 150

300 200

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMENSIONS AND WEIGHTSAND DUPLEX MOTOR CONTROL NARROW WIDTH CONTR

ENCLOSED TYPE

OPEN TYPE

Hin

mm

Win

mm

Cin

mm

NETWeightLbskg

Hin

mm

SINGLE MOTOR CONTROL- - - - -

681727

631600

12305

70031868

172768

172763

160012305

70031868

172778

198177

195615381

130059078

198178

198177

195615381

130059078

1981DUPLEX MOTOR CONTROL

- - - - -68

172775

190512305

100045468

172768

172775

190512305

100045468

1727

NOT AVAILABLE IN STANDARD DIMENSIONS SEE NARROW WIDTH DIM

AC CRANE CONTROL

11

CLASS

CLASS6420642164226426CONTROLLERS

ENCLOSED TYPE

ENCLOSED TYPE

Win

mm

Din

mm

NETWeightLbskg

- -63

160015381

900409

631600

15381

900409

771956

17482

1800817

771956

17482

1800817

- -75

190515381

1400635

751905

15381

1400635

SEE NARROW WIDTH DIMENSIONS

FRONTLINE

12

CLASS

WITH SQUARE DGENERAL INFORMATION

Class 6435 controllers are recommended for used withThe hoist controllers are of the reversing dynamic lowering type whenhoist type when used on cranes with mechanical load brakestravel controls are designed for use with rectifier operated dc brakes or solenoid operated ac brakes

The standard single motor reversing hoist controller consists of equipment for afrequency relay plugging The standard single motor reversing dynamic lowering hoist controller consists of the equipment for a single motorreversing plugging controller with one additional type S three pole contactorprovided (CR) and a pneumatic timing delay is deleted (IA)NOTE DUPLEX CONTROLLERS ARE NOT AVAILABLE

The standard single motor reversing plugging controller consistsof

1mdashTwo pole control molded case switch (MCB)1mdashThree pole magnetic main line circuit breaker with padlock clip

(LCB)2mdashType S three-pole directional contactors with mechanical

interlock (F R)3mdashType S three-pole acceleration contactors (including one for

plugging) (1A 2A P)2mdashPneumatic timing acceleration units (1A 2A)1mdashType SZF frequency relay for plugging (PR)1mdash460230 to 115 volt fused control circuit transformer (1mdashControl Circuit Rectifier (RECT)1mdashUndervoltage relay (UV)3mdashMagnetic inverse time overload relays (1OslashL 2OslashL 3OslashL1mdashSZF power loss protection relay circuit (SPR 2RECT 2MOV2RES)

Volts5060Hz

CraneRating

ContactorMaxAmperes

MaxHp

Primary SecondaryREVERSING AC

38067 100 30133 199 60

46067 100 40133 199 80

38067 100 30133 199 60

46067 100 40133 199 80

REVESING PLUGGING BRIDGE OR TROLLEY CONTROL

38067 100 30133 199 60

46067 100 40133 199 80

Select controller based on horsepower and rated primary and secondary current For

ORDERING INFORMATION REQUIRED

1 Class2 Type3 Motor Horsepower

4 Motor Primary Rated Voltage and Current5 Motor Secondary Rated Voltage and Current6 Controller Modifications Specify Form Numbers

CLASS

FRONTLINEreg AC CRANE CONTROL

SQUARE D CLASS 8502 TYPE S CONTACTORSreg

GENERAL INFORMATIONHOIST SERVICE

controllers are recommended for used with ac wound rotor motor on hoist and travel drives of general-purposedynamic lowering type when used on cranes without mechanical load brakes and are of the reversing

hoist type when used on cranes with mechanical load brakes The travel controllers are of the reversing plugging type Both the hoist and thefor use with rectifier operated dc brakes or solenoid operated ac brakes

BRIDGE OR TROLLEYThe standard single motor reversing hoist controller consists of equipment for a single motor reversing plugging controller

The standard single motor reversing dynamic lowering hoist controller consists of the equipment for a single motorS three pole contactor provided for dynamic lowering (DB) one additional control relay

pneumatic timing delay is deleted (IA)NOTE DUPLEX CONTROLLERS ARE NOT AVAILABLE

controller consists

Three pole magnetic main line circuit breaker with padlock clip

contactors with mechanical

(including one for

5 volt fused control circuit transformer (CTR)

1OslashL 2OslashL 3OslashL)SZF power loss protection relay circuit (SPR 2RECT 2MOV and

CLASS 8502 TYPE S CONTACTORS PNEUMATOC TIMING ACCELERATION CLASS 8501 TYPE SZF FREQUENCY RELAY FOR

PLUGGING

NEMAContactor

Size

NoSpeedPoints

OpenType

General PurposeEnclosure NEMAType 1 Gasketed

REVERSING AC DYNAMIC LOWERING HOIST CONTROL2 4 DOH71 DSH713 4 EOH71 ESH712 4 DOH71 DSH713 4 EOH71 ESH71REVERSING HOIST CONTROL2 4 DOH76 DSH763 4 EOH76 ESH762 4 DOH76 DSH763 4 EOH76 ESH76

REVESING PLUGGING BRIDGE OR TROLLEY CONTROL2 4 DOR76 DSR763 4 EOR76 ESR762 4 DOR76 DSR763 4 EOR76 ESR76

Select controller based on horsepower and rated primary and secondary current For explanation refer to Controller Ratings section of

ORDERING INFORMATION REQUIRED

4 Motor Primary Rated Voltage and Current5 Motor Secondary Rated Voltage and Current6 Controller Modifications Specify Form Numbers

7 Resistors Services Classification8 Master Switch Type and Form Number

September 2008

purpose overhead cranesout mechanical load brakes and are of the reversing

versing plugging type Both the hoist and the

reversing plugging controller but without SZFThe standard single motor reversing dynamic lowering hoist controller consists of the equipment for a single motor

one additional control relay

LASS 8502 TYPE S CONTACTORSPNEUMATOC TIMING ACCELERATION

FREQUENCY RELAY FOR

Outdoor EnclosureNEMA Type 3R

DWH71EWH71DWH71EWH71

DWH76EWH76DWH76EWH76

DWR76EWR76DWR76EWR76

refer to Controller Ratings section of Application Data

7 Resistors Services Classification8 Master Switch Type and Form Number

September 2008 FRONTLINE

WITH CLASSTRAVEL CONTROL

FRONTLINEreg AC CRANE CONTROL

WITH CLASS SQUARE D 8502 TYPE S CONTACTOTRAVEL CONTROL ELEMENTARY DIAGRAM

AC CRANE CONTROL

13

CLASS

8502 TYPE S CONTACTORS

CLASS

FRONTLINE

14

CLASS

WITH CLASS SQUARE DREVERSING HOIST

CLASS

FRONTLINEreg AC CRANE CONTROL

SQUARE D 8502 TYPE S CONTACTORSREVERSING HOIST ELMENTARY DIAGRAM

September 2008

September 2008 FRONTLINE

WITH CLASS SQUARE DDYNAMIC LOWERING HOI

FRONTLINEreg AC CRANE CONTROL

WITH CLASS SQUARE D 8502 TYPE S CONTACTODYNAMIC LOWERING HOIST ELEMENTARY DIAGRAM

AC CRANE CONTROL

15

CLASS

8502 TYPE S CONTACTORSDIAGRAM

CLASS

FRONTLINE

16

CLASS

APPROXIMATE DIMENSIOCLASS 8502 TYPE S CO

OPEN TYPE

DriveMaximum

HP(Volts)

Open Type

Hin

mm

Win

mm

Hoist orTravel

20(380)

401016

24607

40(460)

401016

24607

40(380)

401016

30762

80(460)

401016

30762

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMENSIONS AND WEIGHTSCLASS 8502 TYPE S CONTACTORS

ENCLOSED TYPE

Open Type Enclosed Type

Cin

mm

NetWeightlbskg

Hin

mm

Win

mm

85216

1506842

106730762

85216

1506842

106730762

10254

2009142

106736914

10254

2009142

106736914

September 2008

ENCLOSED TYPE

Enclosed Type

Din

mm

NetWeightlbskg

15381

300136

15381

300136

15381

385175

15381

385175

September 2008 FRONTLINE

A set of TABWELDreg resistors are required forapplications

RESISTOR APPLICATION

For resistors mounted in racks unwired ndash refer to Class 6715

Class 151 and 152 is recommended for light crane duty

Class 161 and 162 is recommended for standard duty

Class 171 and172 is recommended for severe duty

For explanation of NEMA resistor classifications

CLASS 6715 RESISTORS

To order an AC acceleration resistor set for use with duplex Cpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V andat 67A

Controller Class EnclosureMotorRating

ControlScheme

Code Type Code Code

6420 A0None N

ldquoHrdquo(HP)

6421 A16422 A2

Open O6426 A6

Hoist6435

A7Nema

1G

ldquoKrdquo(kw)

Travel6435

A8Nema

3RW

CustomerDesign

A99NemaScreenCovers

C

NEMA ClassSpeed Points

System VoltageMotor Rated Voltage

Class 6715

Controller TypeEnclosure

Motor Power

Motor ConfigurationRotor Volts

Rotor Amps

FRONTLINEreg AC CRANE CONTROL

SELECTION AND APPLICATIONe required for each AC motor control The following table is for selecting resistor for all AC motor control

RESISTOR APPLICATION

refer to Class 6715

Class 151 and 152 is recommended for light crane duty

Class 161 and 162 is recommended for standard duty

Class 171 and172 is recommended for severe duty

For explanation of NEMA resistor classifications ndash refer to Class 6715

CLASS

CLASS 6715 RESISTORS SELECTION TABLE

EXAMPLE AC RESISTOR SETTo order an AC acceleration resistor set for use with duplex CONTRA-TORQUE hoist (2 motors in parallel) NEMA 161 duty cycle 5 speedpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V and

CLASS 6715 RESISTOR SELECTION TABLE

NEMA DUTYSpeedPoints

NO

SystemVoltage

MotorRated

Voltage

Class Code Code V Code V Code

151 A3 208 2 208 2152 B

161 C

162 D4 380 3 380 3171 E

172 F91 G

5460 4 460 4

92 H

CustomerDesign

CS 575 5 575 56

4 4A2 G 37K C 5Class 6715

AC CRANE CONTROL

17

CLASS

The following table is for selecting resistor for all AC motor control

6715

hoist (2 motors in parallel) NEMA 161 duty cycle 5 speedpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V and rotor amps

MotorConfiguration

Ro

tor

Ro

tor

Code Type Code

Simplex S

Vo

lts

Am

psDuplex D

Quadruplex Q

4 D 350V 67A

CLASS

FRONTLINE

18

CLASS

APPROXIMATE NUMBER OCLASS 6715 TABWELD R

This tabulation is based on ECampM resistor designs for use with Class 6420 6421 6422 6426 controllerstabulation is for typical drive loading and for motors with standard NEMA secondary values of voltage andconsult factory with actual motor data

Max HPRating Single

Motor

6420Hoist

161 171 152

5 2 2 1

7 12 2 2 1

10 2 2 1

15 2 3 2

20 3 3 2

25 2 3 2

30 3 3 2

40 3 4 2

50 4 6 2

60 4 6 3

75 6 12 4

100 7 9 4

125 8 12 6

150 12 15 6

200 12 18 9

250 12 21 9

This tabulation is based on ECampM resistor designs for use with Class 6435drive loading and for motors with standard NEMA secondary values of voltage and

MaximumHP

HoistDynamic Lowering

NEMA Class152 162

5 1 175 1 110 1 215 2 220 2 225 2 330 2 340 3 350 3 460 3 475 4 6

NEMA SERVICE CLASSIF

Standard 6435 controllers meet the requirements of NEMA Services Crequirements of NEMA service classifications I (CMAA Sspeed point modification Form M3

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE NUMBER OF SEPARATELY MOUNTED STANDARSCLASS 6715 TABWELD RESISTOR SECTIONS (265rdquo LONG)

resistor designs for use with Class 6420 6421 6422 6426 controllers and is for estimatetabulation is for typical drive loading and for motors with standard NEMA secondary values of voltage and current For act

6421Hoist

6422Hoist

162 172 161 171 152

1 1 2 2 1

1 2 2 2 1

2 2 3 3 1

2 2 3 4 2

2 2 4 5 2

2 3 4 6 2

2 3 5 7 2

2 3 6 7 3

2 4 7 9 3

3 4 8 9 3

4 6 9 13 4

5 7 12 18 4

6 9 14 21 7

6 9 18 30 9

9 12 24 36 9

12 15 30 42 12

r designs for use with Class 6435 controller and is for estimate only This tabulation is fordrive loading and for motors with standard NEMA secondary values of voltage and current For actual quantities consult factory

HoistReversing

TravelReverse Plugging

NEMA Class NEMA Class152 162 1521 1 11 1 11 1 11 2 11 2 22 3 22 3 33 3 33 4 33 4 44 6 4

NEMA SERVICE CLASSIFICATIONS

meet the requirements of NEMA Services Classification II (CMAA service classifications A2 and B) to meet theervice classifications I (CMAA Service Classifications A1 C D E and F) the controller must be priced with the 5

September 2008

STANDARS

estimate only Thiscurrent For actual quantities

6426Hoist Bridge or Trolley

162 172

1 1

1 1

1 2

2 2

2 2

2 3

3 3

3 4

4 4

4 4

4 5

6 9

9 9

9 12

12 15

15 18

This tabulation is for typicalFor actual quantities consult factory

TravelReverse Plugging

NEMA Class162

11222334456

lassification II (CMAA service classifications A2 and B) to meet theE and F) the controller must be priced with the 5th

September 2008 FRONTLINE

MASTER SWITCHES AND

Class 9004 Type VGMaster Switch

CLASS 9004 VM OR CM

Control Class Speed Points

6420556

642156

642256

6426556

Motion Speed PointsHoist

(Dynamic Lowering)45

Hoist(Reversing)

45

Travel(Reverse Plugging)

45

Refer to Class 9004 catalog for more information

FRONTLINEreg AC CRANE CONTROL

GENERAL INFORMATIONMASTER SWITCHES AND MODIFICATIONS

Class 9004 Type CGMaster Switch

CLASS 9004 VM OR CM NEMA 1 ENCLOSED

oints Form VM TYPE

C1VG9

VG12

B1VG12VG16

D1VG12VG16

A1VG9

VG12

CONTROL 6435Form MA VM

A2AG9 VG9AG9 VG9

A3AG6 VG6AG9 VG9

A3AG6 VG6AG9 VG9

Refer to Class 9004 catalog for more information

AC CRANE CONTROL

19

CLASS

Class 9004 Type CGMaster Switch

CM TYPE

CG12CG12CG12CM16CG12CG16

CG12CG12

VM CMVG9 CG8VG9 CG12VG6 CG6VG9 CG8VG6 CG6VG9 CG8

CLASS

FRONTLINE

20

CLASS

GENERALMANUAL MAGNETIC DISC

The manual magnetic disconnect switch is used for protecting electrical crane circuits exOHSA requirements for a crane disconnect switchThe standard disconnect switch consists of

3mdashClass 8503 Type M form Y781 (with silver faced power contacttips) SPNO contactors The contactors are mechanically tiedOne normally open and one normally closed electricalinterlocks are included for indicating lights

1mdashTwo pole control molded case switch with padlock clip (1mdash460380230 to 255 volt fused control circuit transformer (1mdashIntermediate relay (CR)1mdashClass 9999AI1 Arc Suppressor

Volts5060Hz

NEMAContactor

Size

MaxAmperes

380or

460

4 1505 3006 6008 1350

Form

F30A

3 Main Line Power FusesStart-Stop Push Button

X11Additional Control CircuitNC interlocks can be added

A3 ldquoOnOffrdquo PushbuttonP1 Red ldquoOnrdquo Pilot LightP2 Green ldquoOffrdquo Pilot LightT12 200VA Additional Transformer Capacity

Class L fuse mounting is standard Customer

PILOT DEVICESThe pilot devices should be selected so the current rating is adequate for controlling the disconnect switch For coil9998 Coil Data catalog sheets An arc inhibitor may be required depending upon the ra

DISCONNEWhen applied to cranes the continuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated currentrequired by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

ORDERING INFORMATION REQUIRED1 Class2 Type3 Voltage4 Controller Modifications Specify Form

CLASS

FRONTLINEreg AC CRANE CONTROL

GENERAL INFORMATIONMANUAL MAGNETIC DISCONNECTS SWITCHES

etic disconnect switch is used for protecting electrical crane circuits except lifting magnet circuits The disconnect meets

ype M form Y781 (with silver faced power contacttips) SPNO contactors The contactors are mechanically tiedOne normally open and one normally closed electrical

case switch with padlock clip (CMCS)volt fused control circuit transformer (CTR)

CAM OPERATOR PREVENTSFROM CLOSING WHEN HANDLE IS IN OFFPOSITION

CONTACTORS OPERATED REMOTELY OR BYHANDLE ON THE ENCLOSURE

Amperes

Enclosures

General PurposeNEMA Type 1 gasketed

Dusttight NEMA Type 12Outdoor NEMA Type 3R

MFS12 MFA12MGS12 MGA12MHS12 MHA12MKS12 MKA12

MODIFICATIONSDescription

Main Line Power FusesStop Push Button

Additional Control Circuit Interlocks A maximum of 4 NONC interlocks can be added

Offrdquo PushbuttonRed ldquoOnrdquo Pilot LightGreen ldquoOffrdquo Pilot Light200VA Additional Transformer Capacity

Class L fuse mounting is standard Customer is to supply fuse rating

PILOT DEVICES SELECTIONThe pilot devices should be selected so the current rating is adequate for controlling the disconnect switch For coil currents9998 Coil Data catalog sheets An arc inhibitor may be required depending upon the ratings of the pilot device

DISCONNECT SWITCH SELECTIONcontinuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated current

required by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

September 2008

t lifting magnet circuits The disconnect meets

AM OPERATOR PREVENTS CONTACTORFROM CLOSING WHEN HANDLE IS IN OFF

ORS OPERATED REMOTELY OR BYHANDLE ON THE ENCLOSURE

currents refer to Class

continuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated currentrequired by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

September 2008 FRONTLINE

MANUAL MAGNETIC DISC

FRONTLINEreg AC CRANE CONTROL

MANUAL MAGNETIC DISCONNECT ELEMENTARY DIAGRA

AC CRANE CONTROL

21

CLASS

AGRAM

CLASS

FRONTLINE

22

CLASS

APPROXIMATE DIMESION

NEMASize

ContinuousAmpereRating A B C D

4 15018457

5127

8203

19483

5 30014356

3589

45114

28711

6 60018457

5127

8203

19483

8 135014356

5127

8203

28712

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMESIONS AND WEIGHTS

D E F G H J K L M

19483

30762

36914

2864727

315800

33838

3589

16229

36914

28711

33838

36914

267678

345876

36914

7178

72183

36914

19483

421067

421067

322818

4351105

451143

3589

10483

421067

28712

57838

441118

363922

345864

36914

70178

59137

741275

September 2008

M N

NetWeight

36914

15381

21096

36914

20508

235107

421067

20508

285130

741275

28508

300138

September 2008 FRONTLINE

MULTIMOTOR DRIVESTwo motors connected in parallel (duplex)control primary equipment and two sets of motor controlsecondary equipment are required in the controller Two sets ofpower resistors are also required

Four motors connected in parallel (quadruplex)necessary to double the duplex controller price given for twomotors in parallel One set of motor control primary and four setsof motor control secondary equipment are required Four sets opower resistors are required

CONTROLLERSNarrow width controllers ndash Most controllers ara narrow width construction These controllers when compared tostandard controllers are reduced width and increased height Fordetails see controller modifications and controller dimension

CONTROLLER MODIFICAT

Form Description

D6 Motor Isolating Circuit Breakers

B5 Brake Relay Reverse Plugging Controller Only

Y17 Arc Inhibitors Pendant Operated Controller

G95 Miniature Voltmeter Panel Mounted

G91 Miniature Ammeter Panel Mounted

E18 Narrow Width Panel

M24Substitute Type SZF Frequency Relay For ST1 StaticAcceleration Timers

H18Cabinet Space Heater Controlled By Interlock From MContactor

For Duplex Controllers For Duplex controllers multiply price by 2

1 Class2 Type3 Motor Horsepower4 Motor Primary Rated Voltage and Current

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATA

MULTIMOTOR DRIVESTwo motors connected in parallel (duplex) ndash One set of motorcontrol primary equipment and two sets of motor controlsecondary equipment are required in the controller Two sets of

Four motors connected in parallel (quadruplex) ndash It islex controller price given for two

motors in parallel One set of motor control primary and four setsof motor control secondary equipment are required Four sets of

CONTROLLERSMost controllers are also available in

a narrow width construction These controllers when compared tostandard controllers are reduced width and increased height For

see controller modifications and controller dimension

CONTROLLER MStandard controllers come equipped with the components listedSpecial features to be added to standard controllers are identifiedby Form number Most modifications are self

FORM D6 list motor isolation circuit breakers for use on duplexcontrollers For operation of the drive on one motor the motorline and connect breakers will disconnect one motor from the lineand connect the frequency relays to the power resistors of theother motor The brakes of the motor not in service are stillreleased electrically

FORM G95 lists a 3 frac12rdquo square miniature voltmeter to monitor onephase of motor primary voltage

FORM G9 lists a 3 frac12rdquo square miniature ammeter to monitor onephase of motor primary current Current transformersform are supplied Form G9 for motors above 10 HP20 HP 460 volts

CONTROLLER MODIFICATIONS

Brake Relay Reverse Plugging Controller Only

Arc Inhibitors Pendant Operated Controller

Substitute Type SZF Frequency Relay For ST1 Static

Cabinet Space Heater Controlled By Interlock From M

APPLICATION DATACLASS 6420 EDDYMAG

DYNAMIC MODEL AB-

MOTOR HPRATING

Brake Size

900 RMP Motors

Light DutyServices

SevereDutyServices

7 12 703

10 704

15 704

20 705

25 705

30 705

40 706

50 706

60 706

75 707

100 707

125 707

150 707200 708250 708300 708

ORDERING INFORMATION REQUIRED

5 Motor Secondary Rated Voltage andCurrent6 Controller Modifications Specify FormNumbers

7 Resistors Services Classification8 Master Switch Type and Form Number

AC CRANE CONTROL

23

CLASS

CLASS

CONTROLLER MODIFICATIONSStandard controllers come equipped with the components listedSpecial features to be added to standard controllers are identifiedby Form number Most modifications are self explanatory

list motor isolation circuit breakers for use on duplexcontrollers For operation of the drive on one motor the motorline and connect breakers will disconnect one motor from the lineand connect the frequency relays to the power resistors of the

motor The brakes of the motor not in service are still

lists a 3 frac12rdquo square miniature voltmeter to monitor one

lists a 3 frac12rdquo square miniature ammeter to monitor oneCurrent transformers with this

for motors above 10 HP 230 volt and

PPLICATION DATACLASS 6420 EDDYMAG HOIST

-FLOOR MOUNTED BRAKE

1200 RMP MotorsSevereDutyServices

Light DutyServices

SevereDutyServices

704 703 703

704 703 704

705 704 704

705 704 705

705 705 705

706 705 705

706 705 706

706 706 706

707 706 706

707 706 706

707 707 707

707 707 707

708 707 707708 707 708708 708 708--- 708 708

7 Resistors Services Classification8 Master Switch Type and Form Number

FRONTLINE

24

CLASS

CLASS

CRANE HOOK SPEED VS

CLASS 6421DYNAMIC LO

FIRST

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

O

FSY

NC

HR

ON

OU

SSP

EED

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

SY

NC

HR

ON

OU

SSP

PED

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATACRANE HOOK SPEED VS LOAD PERFORMANCE

CLASS 6420 EDDYMAGreg

CLASS 6421DYNAMIC LOWERING HOIST

FIRST

SECOND

THIRD

FOURTH

FIFTH

FIRST

SECOND

THIRD

FOURTH

FIFTH

40 60 80 100 120 140 160 180

LOAD PERFORMANCE IN OF SYNCHRONOUS SPEED

SECOND

THIRDFOURTH

FIFTH

FIRST

FIRST

SECOND amp THIRD

40 60 80 100 120 140 160 180

LOAD PERFORMANCE IN OF SYNCHRONOUS SPEED

September 2008

200

FIFTH

180 200

September 2008 FRONTLINE

CRANE HOOK SPEEDCLASS 6422 CONTRA

CLASS 6426

SECONDFIRST

FOURTH

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

O

FSY

NC

HR

ON

OU

SSP

EED

FIRST

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

SY

NC

HR

ON

OU

SSP

EED

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATACRANE HOOK SPEED VS LOAD PERFORMANCE

CLASS 6422 CONTRA-TORQUEreg

CLASS 6426 REVERSING HOIST CONTROL(With Mechanical Load Brake)

FIFTH

AUTOMATIC

FOURTH

THIRD

FIRST amp SECOND

SECOND

THIRD

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUS SPEED

SIXTH

SECOND

THIRD

FOURTH

FIFTH

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUSE SPEED

25

CLASS

CLASS

FIFTH

AUTOMATIC

FIRST amp SECOND

180 200

180 200

FRONTLINE

26

CLASS

AC CONTACTOR CONTROL

System AC Contactor Control

Crane Components

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switchradio controlReversing hoistsmechanical load brake gearboxAll other hoist stylesgearbox Best and critical positioning controlrequires E

ResistorsAcceleration resistor setSize based on HP amp duty cycle

Mo

tor

Perf

orm

an

ce

General

Velocity and acceleration is load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

More abrupt speed point

Slowdown

Travel Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

Hoist OFF point slowdown and braking withEddy-Current brakeDB circuitry

OFF Point

Travel No OFF point braking via control

Hoist OFF point braking by Eddybrake CONTRA

Reversing

Travel Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allowsoperation

Hoist Drive is stopped before each changein direction

Power ConsumptionPower dissipated in rotor resistors inspeed points

Component Wear

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Motors Encoders

Requires wound rotor motorNo encoder feedback

Motor blower not typically requiredoperation at reduced motor velocity as fulltorque is not available at zero speed

FRONTLINEreg AC CRANE CONTROL

AC CONTACTOR CONTROL vs DRIVES

AC Contactor Control Variable Frequency Drive

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switch and pendant orradio controlReversing hoists require worm gear ormechanical load brake gearbox

hoist styles require standardgearbox Best and critical positioning control

es Eddy-Current load brake

Inverter-duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limitpendant or radio controlOpen loop hoist controls require worm gear ormechanical load brake gearboxClosed loop hoist controlswith motor encoder feedback

Acceleration resistor set requiredSize based on HP amp duty cycle

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration is load dependantVelocity and acceleration are minimally (open(closed loop) load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

More abrupt speed point transitions Smooth speed point transitions

Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

OFF point slowdown and braking withurrent brake CONTRA-TORQUEreg or

DB circuitry

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

No OFF point braking via control

OFF point braking by Eddy-CurrentCONTRA-TORQUEreg or DB circuitry

OFF point Dynamic Braking (DB)deceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allows reacceleration after relayoperation

Drive is stopped before each changein direction

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speedachieved

Power dissipated in rotor resistors in lowspeed points

Uses less power at reduced velocity and duringacceleration

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Power contactors eliminatedMotor current switched by solidSpare drive recommended

Requires wound rotor motorNo encoder feedback required

Inverter-duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Motor blower not typically required foroperation at reduced motor velocity as fulltorque is not available at zero speed

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and highduty cycles

September 2008

Frequency Drive

duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limit switches master switch

require worm gear ormechanical load brake gearbox

require standard gearbox butwith motor encoder feedback

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration are minimally (open loop) or not(closed loop) load dependant

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

Smooth speed point transitions

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

OFF point Dynamic Braking (DB) with programmabledeceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speed

Uses less power at reduced velocity and during

Power contactors eliminatedMotor current switched by solid-state componentsSpare drive recommended

duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and high

September 2008 FRONTLINE

CLASS 5010 WB DRUM BRAKES

AIST rated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Hold drive stationary when motor is off

Available in 8rdquo to 30rdquo wheel diameters

Torque ratings 100 through 9000 ft-lbs

Corrosion resistant pins are standard on all brake sizes

Grease fittings are standard on 19rdquo 23rdquo and 30rdquo brake sizes

Available with optional self-adjuster

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

AIST rated and suitable for all crane classes

Used on bridge and trolley (horizontal travel) drives

Provide fixed holding torque for parking

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000

Stopping torque ratings up to 300 850 and 1500

Available for AC or DC control systems

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL(Contactor) CONTROLS

Hoist drive styles include Eddy-Current Brakeand Reversing Hoist controls

Reversing Plugging control for bridge and trolley (travel) drives

Meets NEMA Service Classification I

Available in NEMA contactor sizes 2 through 6

Numerous modifications available

Uses Class 8503 Type M Line-ARCreg contactors static timers

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

Meet OSHAamp NEC requirements for AC

Available in continuous ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by

Mechanical amp electrical interlocks prevent switch

CLASS 6170 YOUNGSTOWNreg

HOIST POWER LIMIT SWITCHES

Final safety limits for hoist upper travel

Interrupts motor power directly

Available in ratings up to 500HP at 230VDC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER

FRONTLINEreg AC CRANE CONTROL

ated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Corrosion resistant pins are standard on all brake sizes

andard on 19rdquo 23rdquo and 30rdquo brake sizes

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

ated and suitable for all crane classes

travel) drives

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000 ft-lbs respectively

Stopping torque ratings up to 300 850 and 1500 ft-lbs respectively

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL

Current Brake CONTRA-TORQUEreg AC Dynamic Lowering

bridge and trolley (travel) drives

Available in NEMA contactor sizes 2 through 6 through 300HP for single or multiple motors

contactors static timers and frequency relays for acceleration

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

crane disconnect switch

ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by the enclosure handle

Mechanical amp electrical interlocks prevent switch operation with handle in the OFF position

HOIST POWER LIMIT SWITCHES

to 500HP at 230VDC or up to 400HP at 460VAC and 550VAC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on-line at wwwECandMnet

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER MILL DUTY CONTROL COMPONENTS27

CLASS

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

FRONTLINE

28

CLASS

FRONTLINEreg AC CRANE CONTROL

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

copyCopyright The Electric Controller and Manufacturing Company LLCPrinted in the USA

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

September 2008

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

copyCopyright The Electric Controller and Manufacturing Company LLC 2007

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

Page 3: Ac Crane Control

September 2008 FRONTLINE

EDDYMAG

FRONTLINEreg AC CRANE CONTROL

EDDYMAGreg HOIST ELEMENTARY

AC CRANE CONTROL

3

CLASS

FRONTLINE

4

CLASS

AC DYNAMIC LOWERINGGENERAL INFORMATION

Class 6421 reversing dynamic lowering controllers are recommended for use with ac wound rotor motors on crane hoist without mechanicalload brakes All controllers are arranged for use with rectifier operated dc shunt brakes or solenoid

The standard single motor reversing dynamic loweringconsists of

1mdashTwo pole control molded case switch (CMCS)1mdashThree pole magnetic main line circuit breaker with padlock clip

(LCB)4mdashType M two-pole contactors with mechanical interlock for

hoisting and lowering circuits (H L DB M)5 or 6mdashType M two-pole acceleration contactors

(1A 2A 3A 4A 5A 6A)3 4 or 5mdashType SZF static acceleration relays

(2AR 3AR 4AR 5AR)1mdash460380230 to 255 volt fused control circuit transformer

(CTR)1mdashControl Circuit Rectifier (RECT)1mdashType KFO under voltage relay (UV)1mdashBrake relay (BR)1mdashPneumatic timing transition relay (TR)3mdashType AO magnetic inverse time overload relays

(1OslashL 2OslashL 3OslashL)1mdashSZF power loss protection relay circuits

(SPR 2RECT 2MOV 2RES)

Volts3Ǿ

5060Hz

CraneRating

NEMAContactor

SizeMax

AmperesMaxHp

Primary Secondary

380

67 30 2 2133 60 3 3200 100 4 4400 150 5 5400 200 5 5

460

67 40 2 2133 80 3 3200 125 4 4400 200 5 5400 300 5 5

Select controller based on horsepower and rated primary and secondary current ForThese controllers have six speed points available but are used with 5point master switches the last aThese controllers have seven speed points available but are used with 6point master switches the last acceleratio

ORDERING INFORMATION REQUIRED See Page 23MODIFICATIONS See Page 24

CLASS

FRONTLINEreg AC CRANE CONTROL

AC DYNAMIC LOWERINGGENERAL INFORMATION

HOIST SERVICEreversing dynamic lowering controllers are recommended for use with ac wound rotor motors on crane hoist without mechanical

load brakes All controllers are arranged for use with rectifier operated dc shunt brakes or solenoid operated ac brakes

controller

Three pole magnetic main line circuit breaker with padlock clip

contactors with mechanical interlock for

d control circuit transformer

USES SINGLE PHASE MOTOR CONNECTION FORDYNAMIC LOWERING

SUITABLE FOR APPLICATIONS NOT REQUIRING SLOWLOWERING SPEED

MILL DUTY CLASS 8503 TYPE M CLAPPER TYPECONTACTORS

CLASS 8501 TYPE SZF STATIC ACCELERATION TIMERS

NoSpeedPoints

OpenType

General PurposeEnclosure NEMAType 1 Gasketed

Outdoor EnclosureNEMA Type 3R

Secondary

SINGLE MOTOR CONTROL

5 DOH71 DSH71 DWH715 EOH71 ESH71 EWH715 FOH71 FSH71 FWH715 GOH71 GSH71 GWH716diams GOH91 GSH91 GWH91

5 DOH71 DSH71 DWH715 EOH71 ESH71 EWH715 FOH71 FSH71 FWH715 GOH71 GSH71 GWH716diams GOH91 GSH91 GWH91

Select controller based on horsepower and rated primary and secondary current For explanation refer to Controller Ratings section of Application Dcontrollers have six speed points available but are used with 5point master switches the last acceleration point being relay controlledcontrollers have seven speed points available but are used with 6point master switches the last acceleration point being relay controlled

See Page 23See Page 24

APPLICATION INFORMATIONDIMENSIONAL INFORMATION

September 2008

reversing dynamic lowering controllers are recommended for use with ac wound rotor motors on crane hoist without mechanical

USES SINGLE PHASE MOTOR CONNECTION FOR

S NOT REQUIRING SLOW

MILL DUTY CLASS 8503 TYPE M CLAPPER TYPE

E SZF STATIC ACCELERATION TIMERS

Outdoor EnclosureDusttight

Enclosure NEMAType 12

DAH71EAH71FAH71GAH71GAH91

DAH71EAH71FAH71GAH71GAH91

Application Datacceleration point being relay controlled

n point being relay controlled

APPLICATION INFORMATIONSee Pages 23-25DIMENSIONAL INFORMATIONSee Pages 10amp11

September 2008 FRONTLINE

DYNAMIC LOWERING ELE

FRONTLINEreg AC CRANE CONTROL

DYNAMIC LOWERING ELEMENTARY DIAGRAM

AC CRANE CONTROL

5

CLASS

MENTARY DIAGRAM

CLASS

FRONTLINE

6

CLASS

GENERAL

Class 6422 reversing CONTRA-TORQUEreg controllers are recommendedmechanical load brakes but with fixed overhauling loads such as bucket crane hoistoperated dc shunt brakes or solenoid operated ac brakes

The standard single motor reversing CONTRA-TORQUEcontroller consists of

1mdashTwo pole control molded case switch (CMCS)1mdashThree pole magnetic main line circuit breaker with padlock clip

(LCB)2mdashType M two-pole contactors with mechanical interlock for

hoisting and lowering circuits (H L)1mdashType M two-pole main contactor (M)5 or 6mdashType M two-pole acceleration contactors

(1A 2A 3A 4A 5A 6A)5 or 6mdashType SZF frequency relays

(3AR 4AR 5AR 6AR OS NH)1mdash460380230 to 255 volt fused control circuit transformer

(CTR)1mdashControl Circuit Rectifier (RECT)1mdashType KFO under voltage relay (UV)2mdashPneumatic timing relays for counter-torque and lowering

relays (CTR LR)1mdashPneumatic timing transition relay (TR)3mdashType AO magnetic inverse time overload relays

(1OslashL 2OslashL 3OslashL)1mdashSZF power loss protection relay circuits

(SPR 2RECT 2MOV 2RES)

Volts5060Hz

CraneRating

NEMAContactor

SizeMax

AmperesMaxHp

Primary Secondary

380

67 30 2 2133 60 3 3200 100 4 4400 150 5 5400 200 5 5

460

67 40 2 2133 80 3 3200 125 4 4400 200 5 5400 300 5 5

Select controller based on horsepower and rated primary and secondary current ForThese controllers have six speed points available but are used withdiamsThese controllers have seven speed points available but are used with 6point master switches the last acceleration point being rel

ORDERING INFORMATION REQUIRED See Page 23MODIFICATIONS See Page

CLASS

FRONTLINEreg AC CRANE CONTROL

CONTRA-TORQUEreg

GENERAL INFORMATIONHOIST SERVICE

controllers are recommended for use with ac wound rotor motors on crane hoistbut with fixed overhauling loads such as bucket crane hoists All controllers are arranged for use with rectifier

operated dc shunt brakes or solenoid operated ac brakes

TORQUEreg

ine circuit breaker with padlock clip

contactors with mechanical interlock for

volt fused control circuit transformer

and lowering

PROVIDES SLOW LOWERING SPEEDS FOROVERHAULING LOADS ONLY

MILL DUTY CLASS 8503 TYPE M CLAPPER TYPECONTACTORS

CLASS 8501 TYPE SZF STATIC ACCELERATION TIMERS

NoSpeedPoints

OpenType

General PurposeEnclosure NEMAType 1 Gasketed

Outdoor EnclosureNEMA Type 3R

Secondary

SINGLE MOTOR CONTROL

5 DOH72 DSH72 DWH725 EOH72 ESH72 EWH725 FOH72 FSH72 FWH725 GOH72 GSH72 GWH726diams GOH92 GSH92 GWH92

5 DOH72 DSH72 DWH725 EOH72 ESH72 EWH725 FOH72 FSH72 FWH725 GOH72 GSH72 GWH726diams GOH92 GSH92 GWH92

Select controller based on horsepower and rated primary and secondary current For explanation refer to Controller Ratings section ofcontrollers have six speed points available but are used with 5point master switches the last acceleration point being relay controlledcontrollers have seven speed points available but are used with 6point master switches the last acceleration point being relay controlled

See Page 23See Page 24

APPLICATION INFORMATIONDIMENSIONAL INFORMATION

September 2008

for use with ac wound rotor motors on crane hoists withoutarranged for use with rectifier

LOWERING SPEEDS FOR

MILL DUTY CLASS 8503 TYPE M CLAPPER TYPE

STATIC ACCELERATION TIMERS

Outdoor EnclosureDusttight

Enclosure NEMAType 12

DAH72EAH72FAH72GAH72GAH92

DAH72EAH72FAH72GAH72GAH92

Controller Ratings section of Application Data5point master switches the last acceleration point being relay controlled

ay controlled

APPLICATION INFORMATION See Pages 23-25DIMENSIONAL INFORMATION See Pages 10amp11

September 2008 FRONTLINE

CONTRA

FRONTLINEreg AC CRANE CONTROL

CONTRA-TORQUEreg ELEMENTARY DIAGRAM

AC CRANE CONTROL

7

CLASS

CLASS

FRONTLINE

8

CLASS

REVERSING PLUGGINGClass 6426 controllers are recommended for used withThe hoist controllers are of the reversing hoist type and are used on cranes with mechanical load brakes Thereversing plugging type Both the hoist and the travel controlleroperated ac brakes

The standard single motor reversing hoist controller consists of equipment for a reversing plugging controllerfor plugging (PR)

BRIDGE OR TROLLEY SE

The standard single motor reversing controller consists of

1mdashTwo pole control molded case switch (CMCS)1mdashThree pole magnetic main line circuit breaker with padlock clip

(LCB)2mdashType M two-pole contactors with mechanical interlock1mdashType M two-pole main contactor (M)4 or 5 or 6Type M two-pole acceleration contactors (including one

for plugging) (P 1A 2A 3A 4A 5A 6A)3 or 4 or 5Type ST1 static acceleration timers

(1AR 2AR 3AR 4AR 5AR)1mdashType SZF frequency relay for plugging (PR)1mdash460380230 to 255 volt fused control circuit transformer

(CTR)1mdashControl Circuit Rectifier (RECT)1mdashType KFO under voltage relay (UV)3mdashType AO magnetic inverse time overload relays

(1OslashL 2OslashL 3OslashL)

1mdashSZF power loss protection relay circuit(SPR 2RECT 2MOV 2RES)

The standard duplex reversing plugging controller consists of theequipment for a single motor controller with the exceptionfollowing equipment is added4 or 5mdashType M two-pole acceleration contactors

(2P 21A 22A 23A 24A)3mdashType AO magnetic inverse time overload relays

(4OslashL 5OslashL 6OslashL)

Volts5060Hz

CraneRating

NEMAContactor

Size

MaxAmperes

MaxHp

Primary Secondary

Primary Secondary

380

67 67 30 2 2133 133 60 3 3200 200 100 4 4400 400 150 5 5400 400 200 5 5

460

67 67 40 2 2133 133 80 3 3200 200 125 4 4400 400 200 5 5400 400 300 5 5

380

67 67 30 2 2133 133 60 3 2200 200 100 4 3400 400 150 5 4400 400 200 5 5

460

67 67 40 2 2133 67 80 3 2200 133 120 4 3400 200 200 5 4400 400 300 5 5

Select controller based on motor horsepower and rated primary and secondary current FordiamsPrice is for single motor reversing plugging or reversing hoist For reversing hoist change theThese controllers have 6 speed points available but are used with 5point master switches the last acceleration point beingThese controllers have seven speed points available but are used with 6point master swit

ORDERING INFORMATION REQUIRED See Page 23MODIFICATIONS See Page 24

CLASS

FRONTLINEreg AC CRANE CONTROL

REVERSING PLUGGING CONTROLfor used with ac wound rotor motor on hoist and travel drives of general-purpose

The hoist controllers are of the reversing hoist type and are used on cranes with mechanical load brakes The travel panels are of thecontrollers are arranged for use with rectifier operated dc shunt brakes or solenoid

HOIST SERVICEThe standard single motor reversing hoist controller consists of equipment for a reversing plugging controller but without

BRIDGE OR TROLLEY SERVICE

The standard single motor reversing controller consists of

Three pole magnetic main line circuit breaker with padlock clip

contactors with mechanical interlock (F R)

including one

volt fused control circuit transformer

rsing plugging controller consists of thefor a single motor controller with the exception that the

MILL DUTY CLASS 8503 TYPE M CLAPPER TYPECONTACTORS

CLASS 8501 TYPE SZF FREQUENCY ACCELERATIONRELAYS FOR PLUGGING

CLASS 7001 TYPE ST1 STATICACCELERATION TIMERS

NoSpeedPoints

OpenType

General PurposeEnclosure NEMAType 1 Gasketed

Outdoor EnclosureNEMA Type 3R

Secondary

SINGLE MOTOR CONTROL

5 DOR76 DSR76 DWR765 EOR76 ESR76 EWR765 FOR76 FSR76 FWR765 GOR76 GSR76 GWR766 GOR96 GSR96 GWR96

5 DOR76 DSR76 DWR765 EOR76 ESR76 EWR765 FOR76 FSR76 FWR765 GOR76 GSR76 GWR766 GOR96 GSR96 GWR96

DUPLEX MOTOR CONTROL5 DOR86 DSR86 DWR865 EOR86 ESR86 EWR865 FOR86 FSR86 FWR865 GOR86 GSR86 GWR865 GOR106 GSR106 GWR106

5 DOR86 DSR86 DWR865 EOR86 ESR86 EWR865 FOR86 FSR86 FWR865 GOR86 GSR86 GWR865 GOR106 GSR106 GWR106

Select controller based on motor horsepower and rated primary and secondary current For explanation refer to Controller Ratings section of Application DataPrice is for single motor reversing plugging or reversing hoist For reversing hoist change the R in the type to an H

These controllers have 6 speed points available but are used with 5point master switches the last acceleration point being relay controlledThese controllers have seven speed points available but are used with 6point master switches the last acceleration point being relay controlled

See Page 23See Page 24

APPLICATION INFORMATIONDIMENSIONAL INFORMATION

September 2008

purpose overhead cranespanels are of the

r operated dc shunt brakes or solenoid

out SZF frequency relay

MILL DUTY CLASS 8503 TYPE M CLAPPER TYPE

CLASS 8501 TYPE SZF FREQUENCY ACCELERATION

STATICACCELERATION TIMERS

DusttightEnclosure NEMA

Type 12

DAR76EAR76FAR76GAR76GAR96

DAR76EAR76FAR76GAR76GAR96

DAR86EAR86FAR86GAR86

GAR106

DAR86EAR86FAR86GAR86

GAR106Application Data

APPLICATION INFORMATION See Pages 23-25DIMENSIONAL INFORMATION See Pages 10amp11

September 2008 FRONTLINE

REVERSING PLUGGING E

FRONTLINEreg AC CRANE CONTROL

REVERSING PLUGGING ELEMENTARY DIAGRAM

AC CRANE CONTROL

9

CLASS

LEMENTARY DIAGRAM

CLASS

FRONTLINE

10

CLASS

CLASS

APPROXIMATE DIMENSIOSINGLE AND DUPLEX MOTOR CONTROL STANDA

OPEN TYPE

MAXIMUM HP

460V 380VHin

mm

HOISTClasses6420 amp6422

40 3048

1219

80 6048

1219

125 10048

1219200 150

NOT A300 200

HOISTClasses6421 amp6426

ampBridge orTrolleyClass6426

40 3048

1219

80 6048

1219

125 10048

1219

NOT A200 150

300 200

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMENSIONS AND WEIGHTSMOTOR CONTROL STANDARD CONTROLLERS

ENCLOSED TYPE

OPEN TYPE ENCLOSED TYPE

Win

mm

Cin

mm

NETWeightLbskg

Win

mm

Cin

mm

SINGLE MOTOR CONTROL69

175312305

52523848

121969

175369

175312305

70031848

121969

175369

175312305

70031848

121969

1753

NOT AVAILABLE IN STANDARD DIMENSIONS SEE NARROW WIDTH DIM

DUPLEX MOTOR CONTROL69

175312305

50022748

121969

175369

175312305

70031848

121969

175369

175312305

70031848

121969

1753

NOT AVAILABLE IN STANDARD DIMENSIONS SEE NARROW WIDTH DIM

September 2008

RD CONTROLLERS

ENCLOSED TYPE

ENCLOSED TYPE

Din

mm

NETWeightLbskg

15381

750341

15381

900409

15381

900409

SEE NARROW WIDTH DIMENSIONS

15381

700318

15381

900409

15381

900409

SEE NARROW WIDTH DIMENSIONS

September 2008 FRONTLINE

APPROXIMATESINGLE AND DUPLEX

OPEN TYPE

DRIVE

MAXIMUM HP

460V 380Vmm

HOIST(All Classes)and Bridge

Trolley

40 30

80 601727

125 1001727

200 1501981

300 2001981

CLASS 6426Bridge and

Trolleyonly

40 30

80 601727

125 1001727

200 150

300 200

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMENSIONS AND WEIGHTSAND DUPLEX MOTOR CONTROL NARROW WIDTH CONTR

ENCLOSED TYPE

OPEN TYPE

Hin

mm

Win

mm

Cin

mm

NETWeightLbskg

Hin

mm

SINGLE MOTOR CONTROL- - - - -

681727

631600

12305

70031868

172768

172763

160012305

70031868

172778

198177

195615381

130059078

198178

198177

195615381

130059078

1981DUPLEX MOTOR CONTROL

- - - - -68

172775

190512305

100045468

172768

172775

190512305

100045468

1727

NOT AVAILABLE IN STANDARD DIMENSIONS SEE NARROW WIDTH DIM

AC CRANE CONTROL

11

CLASS

CLASS6420642164226426CONTROLLERS

ENCLOSED TYPE

ENCLOSED TYPE

Win

mm

Din

mm

NETWeightLbskg

- -63

160015381

900409

631600

15381

900409

771956

17482

1800817

771956

17482

1800817

- -75

190515381

1400635

751905

15381

1400635

SEE NARROW WIDTH DIMENSIONS

FRONTLINE

12

CLASS

WITH SQUARE DGENERAL INFORMATION

Class 6435 controllers are recommended for used withThe hoist controllers are of the reversing dynamic lowering type whenhoist type when used on cranes with mechanical load brakestravel controls are designed for use with rectifier operated dc brakes or solenoid operated ac brakes

The standard single motor reversing hoist controller consists of equipment for afrequency relay plugging The standard single motor reversing dynamic lowering hoist controller consists of the equipment for a single motorreversing plugging controller with one additional type S three pole contactorprovided (CR) and a pneumatic timing delay is deleted (IA)NOTE DUPLEX CONTROLLERS ARE NOT AVAILABLE

The standard single motor reversing plugging controller consistsof

1mdashTwo pole control molded case switch (MCB)1mdashThree pole magnetic main line circuit breaker with padlock clip

(LCB)2mdashType S three-pole directional contactors with mechanical

interlock (F R)3mdashType S three-pole acceleration contactors (including one for

plugging) (1A 2A P)2mdashPneumatic timing acceleration units (1A 2A)1mdashType SZF frequency relay for plugging (PR)1mdash460230 to 115 volt fused control circuit transformer (1mdashControl Circuit Rectifier (RECT)1mdashUndervoltage relay (UV)3mdashMagnetic inverse time overload relays (1OslashL 2OslashL 3OslashL1mdashSZF power loss protection relay circuit (SPR 2RECT 2MOV2RES)

Volts5060Hz

CraneRating

ContactorMaxAmperes

MaxHp

Primary SecondaryREVERSING AC

38067 100 30133 199 60

46067 100 40133 199 80

38067 100 30133 199 60

46067 100 40133 199 80

REVESING PLUGGING BRIDGE OR TROLLEY CONTROL

38067 100 30133 199 60

46067 100 40133 199 80

Select controller based on horsepower and rated primary and secondary current For

ORDERING INFORMATION REQUIRED

1 Class2 Type3 Motor Horsepower

4 Motor Primary Rated Voltage and Current5 Motor Secondary Rated Voltage and Current6 Controller Modifications Specify Form Numbers

CLASS

FRONTLINEreg AC CRANE CONTROL

SQUARE D CLASS 8502 TYPE S CONTACTORSreg

GENERAL INFORMATIONHOIST SERVICE

controllers are recommended for used with ac wound rotor motor on hoist and travel drives of general-purposedynamic lowering type when used on cranes without mechanical load brakes and are of the reversing

hoist type when used on cranes with mechanical load brakes The travel controllers are of the reversing plugging type Both the hoist and thefor use with rectifier operated dc brakes or solenoid operated ac brakes

BRIDGE OR TROLLEYThe standard single motor reversing hoist controller consists of equipment for a single motor reversing plugging controller

The standard single motor reversing dynamic lowering hoist controller consists of the equipment for a single motorS three pole contactor provided for dynamic lowering (DB) one additional control relay

pneumatic timing delay is deleted (IA)NOTE DUPLEX CONTROLLERS ARE NOT AVAILABLE

controller consists

Three pole magnetic main line circuit breaker with padlock clip

contactors with mechanical

(including one for

5 volt fused control circuit transformer (CTR)

1OslashL 2OslashL 3OslashL)SZF power loss protection relay circuit (SPR 2RECT 2MOV and

CLASS 8502 TYPE S CONTACTORS PNEUMATOC TIMING ACCELERATION CLASS 8501 TYPE SZF FREQUENCY RELAY FOR

PLUGGING

NEMAContactor

Size

NoSpeedPoints

OpenType

General PurposeEnclosure NEMAType 1 Gasketed

REVERSING AC DYNAMIC LOWERING HOIST CONTROL2 4 DOH71 DSH713 4 EOH71 ESH712 4 DOH71 DSH713 4 EOH71 ESH71REVERSING HOIST CONTROL2 4 DOH76 DSH763 4 EOH76 ESH762 4 DOH76 DSH763 4 EOH76 ESH76

REVESING PLUGGING BRIDGE OR TROLLEY CONTROL2 4 DOR76 DSR763 4 EOR76 ESR762 4 DOR76 DSR763 4 EOR76 ESR76

Select controller based on horsepower and rated primary and secondary current For explanation refer to Controller Ratings section of

ORDERING INFORMATION REQUIRED

4 Motor Primary Rated Voltage and Current5 Motor Secondary Rated Voltage and Current6 Controller Modifications Specify Form Numbers

7 Resistors Services Classification8 Master Switch Type and Form Number

September 2008

purpose overhead cranesout mechanical load brakes and are of the reversing

versing plugging type Both the hoist and the

reversing plugging controller but without SZFThe standard single motor reversing dynamic lowering hoist controller consists of the equipment for a single motor

one additional control relay

LASS 8502 TYPE S CONTACTORSPNEUMATOC TIMING ACCELERATION

FREQUENCY RELAY FOR

Outdoor EnclosureNEMA Type 3R

DWH71EWH71DWH71EWH71

DWH76EWH76DWH76EWH76

DWR76EWR76DWR76EWR76

refer to Controller Ratings section of Application Data

7 Resistors Services Classification8 Master Switch Type and Form Number

September 2008 FRONTLINE

WITH CLASSTRAVEL CONTROL

FRONTLINEreg AC CRANE CONTROL

WITH CLASS SQUARE D 8502 TYPE S CONTACTOTRAVEL CONTROL ELEMENTARY DIAGRAM

AC CRANE CONTROL

13

CLASS

8502 TYPE S CONTACTORS

CLASS

FRONTLINE

14

CLASS

WITH CLASS SQUARE DREVERSING HOIST

CLASS

FRONTLINEreg AC CRANE CONTROL

SQUARE D 8502 TYPE S CONTACTORSREVERSING HOIST ELMENTARY DIAGRAM

September 2008

September 2008 FRONTLINE

WITH CLASS SQUARE DDYNAMIC LOWERING HOI

FRONTLINEreg AC CRANE CONTROL

WITH CLASS SQUARE D 8502 TYPE S CONTACTODYNAMIC LOWERING HOIST ELEMENTARY DIAGRAM

AC CRANE CONTROL

15

CLASS

8502 TYPE S CONTACTORSDIAGRAM

CLASS

FRONTLINE

16

CLASS

APPROXIMATE DIMENSIOCLASS 8502 TYPE S CO

OPEN TYPE

DriveMaximum

HP(Volts)

Open Type

Hin

mm

Win

mm

Hoist orTravel

20(380)

401016

24607

40(460)

401016

24607

40(380)

401016

30762

80(460)

401016

30762

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMENSIONS AND WEIGHTSCLASS 8502 TYPE S CONTACTORS

ENCLOSED TYPE

Open Type Enclosed Type

Cin

mm

NetWeightlbskg

Hin

mm

Win

mm

85216

1506842

106730762

85216

1506842

106730762

10254

2009142

106736914

10254

2009142

106736914

September 2008

ENCLOSED TYPE

Enclosed Type

Din

mm

NetWeightlbskg

15381

300136

15381

300136

15381

385175

15381

385175

September 2008 FRONTLINE

A set of TABWELDreg resistors are required forapplications

RESISTOR APPLICATION

For resistors mounted in racks unwired ndash refer to Class 6715

Class 151 and 152 is recommended for light crane duty

Class 161 and 162 is recommended for standard duty

Class 171 and172 is recommended for severe duty

For explanation of NEMA resistor classifications

CLASS 6715 RESISTORS

To order an AC acceleration resistor set for use with duplex Cpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V andat 67A

Controller Class EnclosureMotorRating

ControlScheme

Code Type Code Code

6420 A0None N

ldquoHrdquo(HP)

6421 A16422 A2

Open O6426 A6

Hoist6435

A7Nema

1G

ldquoKrdquo(kw)

Travel6435

A8Nema

3RW

CustomerDesign

A99NemaScreenCovers

C

NEMA ClassSpeed Points

System VoltageMotor Rated Voltage

Class 6715

Controller TypeEnclosure

Motor Power

Motor ConfigurationRotor Volts

Rotor Amps

FRONTLINEreg AC CRANE CONTROL

SELECTION AND APPLICATIONe required for each AC motor control The following table is for selecting resistor for all AC motor control

RESISTOR APPLICATION

refer to Class 6715

Class 151 and 152 is recommended for light crane duty

Class 161 and 162 is recommended for standard duty

Class 171 and172 is recommended for severe duty

For explanation of NEMA resistor classifications ndash refer to Class 6715

CLASS

CLASS 6715 RESISTORS SELECTION TABLE

EXAMPLE AC RESISTOR SETTo order an AC acceleration resistor set for use with duplex CONTRA-TORQUE hoist (2 motors in parallel) NEMA 161 duty cycle 5 speedpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V and

CLASS 6715 RESISTOR SELECTION TABLE

NEMA DUTYSpeedPoints

NO

SystemVoltage

MotorRated

Voltage

Class Code Code V Code V Code

151 A3 208 2 208 2152 B

161 C

162 D4 380 3 380 3171 E

172 F91 G

5460 4 460 4

92 H

CustomerDesign

CS 575 5 575 56

4 4A2 G 37K C 5Class 6715

AC CRANE CONTROL

17

CLASS

The following table is for selecting resistor for all AC motor control

6715

hoist (2 motors in parallel) NEMA 161 duty cycle 5 speedpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V and rotor amps

MotorConfiguration

Ro

tor

Ro

tor

Code Type Code

Simplex S

Vo

lts

Am

psDuplex D

Quadruplex Q

4 D 350V 67A

CLASS

FRONTLINE

18

CLASS

APPROXIMATE NUMBER OCLASS 6715 TABWELD R

This tabulation is based on ECampM resistor designs for use with Class 6420 6421 6422 6426 controllerstabulation is for typical drive loading and for motors with standard NEMA secondary values of voltage andconsult factory with actual motor data

Max HPRating Single

Motor

6420Hoist

161 171 152

5 2 2 1

7 12 2 2 1

10 2 2 1

15 2 3 2

20 3 3 2

25 2 3 2

30 3 3 2

40 3 4 2

50 4 6 2

60 4 6 3

75 6 12 4

100 7 9 4

125 8 12 6

150 12 15 6

200 12 18 9

250 12 21 9

This tabulation is based on ECampM resistor designs for use with Class 6435drive loading and for motors with standard NEMA secondary values of voltage and

MaximumHP

HoistDynamic Lowering

NEMA Class152 162

5 1 175 1 110 1 215 2 220 2 225 2 330 2 340 3 350 3 460 3 475 4 6

NEMA SERVICE CLASSIF

Standard 6435 controllers meet the requirements of NEMA Services Crequirements of NEMA service classifications I (CMAA Sspeed point modification Form M3

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE NUMBER OF SEPARATELY MOUNTED STANDARSCLASS 6715 TABWELD RESISTOR SECTIONS (265rdquo LONG)

resistor designs for use with Class 6420 6421 6422 6426 controllers and is for estimatetabulation is for typical drive loading and for motors with standard NEMA secondary values of voltage and current For act

6421Hoist

6422Hoist

162 172 161 171 152

1 1 2 2 1

1 2 2 2 1

2 2 3 3 1

2 2 3 4 2

2 2 4 5 2

2 3 4 6 2

2 3 5 7 2

2 3 6 7 3

2 4 7 9 3

3 4 8 9 3

4 6 9 13 4

5 7 12 18 4

6 9 14 21 7

6 9 18 30 9

9 12 24 36 9

12 15 30 42 12

r designs for use with Class 6435 controller and is for estimate only This tabulation is fordrive loading and for motors with standard NEMA secondary values of voltage and current For actual quantities consult factory

HoistReversing

TravelReverse Plugging

NEMA Class NEMA Class152 162 1521 1 11 1 11 1 11 2 11 2 22 3 22 3 33 3 33 4 33 4 44 6 4

NEMA SERVICE CLASSIFICATIONS

meet the requirements of NEMA Services Classification II (CMAA service classifications A2 and B) to meet theervice classifications I (CMAA Service Classifications A1 C D E and F) the controller must be priced with the 5

September 2008

STANDARS

estimate only Thiscurrent For actual quantities

6426Hoist Bridge or Trolley

162 172

1 1

1 1

1 2

2 2

2 2

2 3

3 3

3 4

4 4

4 4

4 5

6 9

9 9

9 12

12 15

15 18

This tabulation is for typicalFor actual quantities consult factory

TravelReverse Plugging

NEMA Class162

11222334456

lassification II (CMAA service classifications A2 and B) to meet theE and F) the controller must be priced with the 5th

September 2008 FRONTLINE

MASTER SWITCHES AND

Class 9004 Type VGMaster Switch

CLASS 9004 VM OR CM

Control Class Speed Points

6420556

642156

642256

6426556

Motion Speed PointsHoist

(Dynamic Lowering)45

Hoist(Reversing)

45

Travel(Reverse Plugging)

45

Refer to Class 9004 catalog for more information

FRONTLINEreg AC CRANE CONTROL

GENERAL INFORMATIONMASTER SWITCHES AND MODIFICATIONS

Class 9004 Type CGMaster Switch

CLASS 9004 VM OR CM NEMA 1 ENCLOSED

oints Form VM TYPE

C1VG9

VG12

B1VG12VG16

D1VG12VG16

A1VG9

VG12

CONTROL 6435Form MA VM

A2AG9 VG9AG9 VG9

A3AG6 VG6AG9 VG9

A3AG6 VG6AG9 VG9

Refer to Class 9004 catalog for more information

AC CRANE CONTROL

19

CLASS

Class 9004 Type CGMaster Switch

CM TYPE

CG12CG12CG12CM16CG12CG16

CG12CG12

VM CMVG9 CG8VG9 CG12VG6 CG6VG9 CG8VG6 CG6VG9 CG8

CLASS

FRONTLINE

20

CLASS

GENERALMANUAL MAGNETIC DISC

The manual magnetic disconnect switch is used for protecting electrical crane circuits exOHSA requirements for a crane disconnect switchThe standard disconnect switch consists of

3mdashClass 8503 Type M form Y781 (with silver faced power contacttips) SPNO contactors The contactors are mechanically tiedOne normally open and one normally closed electricalinterlocks are included for indicating lights

1mdashTwo pole control molded case switch with padlock clip (1mdash460380230 to 255 volt fused control circuit transformer (1mdashIntermediate relay (CR)1mdashClass 9999AI1 Arc Suppressor

Volts5060Hz

NEMAContactor

Size

MaxAmperes

380or

460

4 1505 3006 6008 1350

Form

F30A

3 Main Line Power FusesStart-Stop Push Button

X11Additional Control CircuitNC interlocks can be added

A3 ldquoOnOffrdquo PushbuttonP1 Red ldquoOnrdquo Pilot LightP2 Green ldquoOffrdquo Pilot LightT12 200VA Additional Transformer Capacity

Class L fuse mounting is standard Customer

PILOT DEVICESThe pilot devices should be selected so the current rating is adequate for controlling the disconnect switch For coil9998 Coil Data catalog sheets An arc inhibitor may be required depending upon the ra

DISCONNEWhen applied to cranes the continuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated currentrequired by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

ORDERING INFORMATION REQUIRED1 Class2 Type3 Voltage4 Controller Modifications Specify Form

CLASS

FRONTLINEreg AC CRANE CONTROL

GENERAL INFORMATIONMANUAL MAGNETIC DISCONNECTS SWITCHES

etic disconnect switch is used for protecting electrical crane circuits except lifting magnet circuits The disconnect meets

ype M form Y781 (with silver faced power contacttips) SPNO contactors The contactors are mechanically tiedOne normally open and one normally closed electrical

case switch with padlock clip (CMCS)volt fused control circuit transformer (CTR)

CAM OPERATOR PREVENTSFROM CLOSING WHEN HANDLE IS IN OFFPOSITION

CONTACTORS OPERATED REMOTELY OR BYHANDLE ON THE ENCLOSURE

Amperes

Enclosures

General PurposeNEMA Type 1 gasketed

Dusttight NEMA Type 12Outdoor NEMA Type 3R

MFS12 MFA12MGS12 MGA12MHS12 MHA12MKS12 MKA12

MODIFICATIONSDescription

Main Line Power FusesStop Push Button

Additional Control Circuit Interlocks A maximum of 4 NONC interlocks can be added

Offrdquo PushbuttonRed ldquoOnrdquo Pilot LightGreen ldquoOffrdquo Pilot Light200VA Additional Transformer Capacity

Class L fuse mounting is standard Customer is to supply fuse rating

PILOT DEVICES SELECTIONThe pilot devices should be selected so the current rating is adequate for controlling the disconnect switch For coil currents9998 Coil Data catalog sheets An arc inhibitor may be required depending upon the ratings of the pilot device

DISCONNECT SWITCH SELECTIONcontinuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated current

required by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

September 2008

t lifting magnet circuits The disconnect meets

AM OPERATOR PREVENTS CONTACTORFROM CLOSING WHEN HANDLE IS IN OFF

ORS OPERATED REMOTELY OR BYHANDLE ON THE ENCLOSURE

currents refer to Class

continuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated currentrequired by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

September 2008 FRONTLINE

MANUAL MAGNETIC DISC

FRONTLINEreg AC CRANE CONTROL

MANUAL MAGNETIC DISCONNECT ELEMENTARY DIAGRA

AC CRANE CONTROL

21

CLASS

AGRAM

CLASS

FRONTLINE

22

CLASS

APPROXIMATE DIMESION

NEMASize

ContinuousAmpereRating A B C D

4 15018457

5127

8203

19483

5 30014356

3589

45114

28711

6 60018457

5127

8203

19483

8 135014356

5127

8203

28712

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMESIONS AND WEIGHTS

D E F G H J K L M

19483

30762

36914

2864727

315800

33838

3589

16229

36914

28711

33838

36914

267678

345876

36914

7178

72183

36914

19483

421067

421067

322818

4351105

451143

3589

10483

421067

28712

57838

441118

363922

345864

36914

70178

59137

741275

September 2008

M N

NetWeight

36914

15381

21096

36914

20508

235107

421067

20508

285130

741275

28508

300138

September 2008 FRONTLINE

MULTIMOTOR DRIVESTwo motors connected in parallel (duplex)control primary equipment and two sets of motor controlsecondary equipment are required in the controller Two sets ofpower resistors are also required

Four motors connected in parallel (quadruplex)necessary to double the duplex controller price given for twomotors in parallel One set of motor control primary and four setsof motor control secondary equipment are required Four sets opower resistors are required

CONTROLLERSNarrow width controllers ndash Most controllers ara narrow width construction These controllers when compared tostandard controllers are reduced width and increased height Fordetails see controller modifications and controller dimension

CONTROLLER MODIFICAT

Form Description

D6 Motor Isolating Circuit Breakers

B5 Brake Relay Reverse Plugging Controller Only

Y17 Arc Inhibitors Pendant Operated Controller

G95 Miniature Voltmeter Panel Mounted

G91 Miniature Ammeter Panel Mounted

E18 Narrow Width Panel

M24Substitute Type SZF Frequency Relay For ST1 StaticAcceleration Timers

H18Cabinet Space Heater Controlled By Interlock From MContactor

For Duplex Controllers For Duplex controllers multiply price by 2

1 Class2 Type3 Motor Horsepower4 Motor Primary Rated Voltage and Current

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATA

MULTIMOTOR DRIVESTwo motors connected in parallel (duplex) ndash One set of motorcontrol primary equipment and two sets of motor controlsecondary equipment are required in the controller Two sets of

Four motors connected in parallel (quadruplex) ndash It islex controller price given for two

motors in parallel One set of motor control primary and four setsof motor control secondary equipment are required Four sets of

CONTROLLERSMost controllers are also available in

a narrow width construction These controllers when compared tostandard controllers are reduced width and increased height For

see controller modifications and controller dimension

CONTROLLER MStandard controllers come equipped with the components listedSpecial features to be added to standard controllers are identifiedby Form number Most modifications are self

FORM D6 list motor isolation circuit breakers for use on duplexcontrollers For operation of the drive on one motor the motorline and connect breakers will disconnect one motor from the lineand connect the frequency relays to the power resistors of theother motor The brakes of the motor not in service are stillreleased electrically

FORM G95 lists a 3 frac12rdquo square miniature voltmeter to monitor onephase of motor primary voltage

FORM G9 lists a 3 frac12rdquo square miniature ammeter to monitor onephase of motor primary current Current transformersform are supplied Form G9 for motors above 10 HP20 HP 460 volts

CONTROLLER MODIFICATIONS

Brake Relay Reverse Plugging Controller Only

Arc Inhibitors Pendant Operated Controller

Substitute Type SZF Frequency Relay For ST1 Static

Cabinet Space Heater Controlled By Interlock From M

APPLICATION DATACLASS 6420 EDDYMAG

DYNAMIC MODEL AB-

MOTOR HPRATING

Brake Size

900 RMP Motors

Light DutyServices

SevereDutyServices

7 12 703

10 704

15 704

20 705

25 705

30 705

40 706

50 706

60 706

75 707

100 707

125 707

150 707200 708250 708300 708

ORDERING INFORMATION REQUIRED

5 Motor Secondary Rated Voltage andCurrent6 Controller Modifications Specify FormNumbers

7 Resistors Services Classification8 Master Switch Type and Form Number

AC CRANE CONTROL

23

CLASS

CLASS

CONTROLLER MODIFICATIONSStandard controllers come equipped with the components listedSpecial features to be added to standard controllers are identifiedby Form number Most modifications are self explanatory

list motor isolation circuit breakers for use on duplexcontrollers For operation of the drive on one motor the motorline and connect breakers will disconnect one motor from the lineand connect the frequency relays to the power resistors of the

motor The brakes of the motor not in service are still

lists a 3 frac12rdquo square miniature voltmeter to monitor one

lists a 3 frac12rdquo square miniature ammeter to monitor oneCurrent transformers with this

for motors above 10 HP 230 volt and

PPLICATION DATACLASS 6420 EDDYMAG HOIST

-FLOOR MOUNTED BRAKE

1200 RMP MotorsSevereDutyServices

Light DutyServices

SevereDutyServices

704 703 703

704 703 704

705 704 704

705 704 705

705 705 705

706 705 705

706 705 706

706 706 706

707 706 706

707 706 706

707 707 707

707 707 707

708 707 707708 707 708708 708 708--- 708 708

7 Resistors Services Classification8 Master Switch Type and Form Number

FRONTLINE

24

CLASS

CLASS

CRANE HOOK SPEED VS

CLASS 6421DYNAMIC LO

FIRST

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

O

FSY

NC

HR

ON

OU

SSP

EED

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

SY

NC

HR

ON

OU

SSP

PED

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATACRANE HOOK SPEED VS LOAD PERFORMANCE

CLASS 6420 EDDYMAGreg

CLASS 6421DYNAMIC LOWERING HOIST

FIRST

SECOND

THIRD

FOURTH

FIFTH

FIRST

SECOND

THIRD

FOURTH

FIFTH

40 60 80 100 120 140 160 180

LOAD PERFORMANCE IN OF SYNCHRONOUS SPEED

SECOND

THIRDFOURTH

FIFTH

FIRST

FIRST

SECOND amp THIRD

40 60 80 100 120 140 160 180

LOAD PERFORMANCE IN OF SYNCHRONOUS SPEED

September 2008

200

FIFTH

180 200

September 2008 FRONTLINE

CRANE HOOK SPEEDCLASS 6422 CONTRA

CLASS 6426

SECONDFIRST

FOURTH

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

O

FSY

NC

HR

ON

OU

SSP

EED

FIRST

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

SY

NC

HR

ON

OU

SSP

EED

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATACRANE HOOK SPEED VS LOAD PERFORMANCE

CLASS 6422 CONTRA-TORQUEreg

CLASS 6426 REVERSING HOIST CONTROL(With Mechanical Load Brake)

FIFTH

AUTOMATIC

FOURTH

THIRD

FIRST amp SECOND

SECOND

THIRD

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUS SPEED

SIXTH

SECOND

THIRD

FOURTH

FIFTH

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUSE SPEED

25

CLASS

CLASS

FIFTH

AUTOMATIC

FIRST amp SECOND

180 200

180 200

FRONTLINE

26

CLASS

AC CONTACTOR CONTROL

System AC Contactor Control

Crane Components

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switchradio controlReversing hoistsmechanical load brake gearboxAll other hoist stylesgearbox Best and critical positioning controlrequires E

ResistorsAcceleration resistor setSize based on HP amp duty cycle

Mo

tor

Perf

orm

an

ce

General

Velocity and acceleration is load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

More abrupt speed point

Slowdown

Travel Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

Hoist OFF point slowdown and braking withEddy-Current brakeDB circuitry

OFF Point

Travel No OFF point braking via control

Hoist OFF point braking by Eddybrake CONTRA

Reversing

Travel Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allowsoperation

Hoist Drive is stopped before each changein direction

Power ConsumptionPower dissipated in rotor resistors inspeed points

Component Wear

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Motors Encoders

Requires wound rotor motorNo encoder feedback

Motor blower not typically requiredoperation at reduced motor velocity as fulltorque is not available at zero speed

FRONTLINEreg AC CRANE CONTROL

AC CONTACTOR CONTROL vs DRIVES

AC Contactor Control Variable Frequency Drive

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switch and pendant orradio controlReversing hoists require worm gear ormechanical load brake gearbox

hoist styles require standardgearbox Best and critical positioning control

es Eddy-Current load brake

Inverter-duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limitpendant or radio controlOpen loop hoist controls require worm gear ormechanical load brake gearboxClosed loop hoist controlswith motor encoder feedback

Acceleration resistor set requiredSize based on HP amp duty cycle

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration is load dependantVelocity and acceleration are minimally (open(closed loop) load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

More abrupt speed point transitions Smooth speed point transitions

Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

OFF point slowdown and braking withurrent brake CONTRA-TORQUEreg or

DB circuitry

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

No OFF point braking via control

OFF point braking by Eddy-CurrentCONTRA-TORQUEreg or DB circuitry

OFF point Dynamic Braking (DB)deceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allows reacceleration after relayoperation

Drive is stopped before each changein direction

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speedachieved

Power dissipated in rotor resistors in lowspeed points

Uses less power at reduced velocity and duringacceleration

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Power contactors eliminatedMotor current switched by solidSpare drive recommended

Requires wound rotor motorNo encoder feedback required

Inverter-duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Motor blower not typically required foroperation at reduced motor velocity as fulltorque is not available at zero speed

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and highduty cycles

September 2008

Frequency Drive

duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limit switches master switch

require worm gear ormechanical load brake gearbox

require standard gearbox butwith motor encoder feedback

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration are minimally (open loop) or not(closed loop) load dependant

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

Smooth speed point transitions

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

OFF point Dynamic Braking (DB) with programmabledeceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speed

Uses less power at reduced velocity and during

Power contactors eliminatedMotor current switched by solid-state componentsSpare drive recommended

duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and high

September 2008 FRONTLINE

CLASS 5010 WB DRUM BRAKES

AIST rated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Hold drive stationary when motor is off

Available in 8rdquo to 30rdquo wheel diameters

Torque ratings 100 through 9000 ft-lbs

Corrosion resistant pins are standard on all brake sizes

Grease fittings are standard on 19rdquo 23rdquo and 30rdquo brake sizes

Available with optional self-adjuster

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

AIST rated and suitable for all crane classes

Used on bridge and trolley (horizontal travel) drives

Provide fixed holding torque for parking

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000

Stopping torque ratings up to 300 850 and 1500

Available for AC or DC control systems

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL(Contactor) CONTROLS

Hoist drive styles include Eddy-Current Brakeand Reversing Hoist controls

Reversing Plugging control for bridge and trolley (travel) drives

Meets NEMA Service Classification I

Available in NEMA contactor sizes 2 through 6

Numerous modifications available

Uses Class 8503 Type M Line-ARCreg contactors static timers

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

Meet OSHAamp NEC requirements for AC

Available in continuous ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by

Mechanical amp electrical interlocks prevent switch

CLASS 6170 YOUNGSTOWNreg

HOIST POWER LIMIT SWITCHES

Final safety limits for hoist upper travel

Interrupts motor power directly

Available in ratings up to 500HP at 230VDC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER

FRONTLINEreg AC CRANE CONTROL

ated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Corrosion resistant pins are standard on all brake sizes

andard on 19rdquo 23rdquo and 30rdquo brake sizes

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

ated and suitable for all crane classes

travel) drives

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000 ft-lbs respectively

Stopping torque ratings up to 300 850 and 1500 ft-lbs respectively

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL

Current Brake CONTRA-TORQUEreg AC Dynamic Lowering

bridge and trolley (travel) drives

Available in NEMA contactor sizes 2 through 6 through 300HP for single or multiple motors

contactors static timers and frequency relays for acceleration

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

crane disconnect switch

ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by the enclosure handle

Mechanical amp electrical interlocks prevent switch operation with handle in the OFF position

HOIST POWER LIMIT SWITCHES

to 500HP at 230VDC or up to 400HP at 460VAC and 550VAC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on-line at wwwECandMnet

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER MILL DUTY CONTROL COMPONENTS27

CLASS

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

FRONTLINE

28

CLASS

FRONTLINEreg AC CRANE CONTROL

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

copyCopyright The Electric Controller and Manufacturing Company LLCPrinted in the USA

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

September 2008

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

copyCopyright The Electric Controller and Manufacturing Company LLC 2007

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

Page 4: Ac Crane Control

FRONTLINE

4

CLASS

AC DYNAMIC LOWERINGGENERAL INFORMATION

Class 6421 reversing dynamic lowering controllers are recommended for use with ac wound rotor motors on crane hoist without mechanicalload brakes All controllers are arranged for use with rectifier operated dc shunt brakes or solenoid

The standard single motor reversing dynamic loweringconsists of

1mdashTwo pole control molded case switch (CMCS)1mdashThree pole magnetic main line circuit breaker with padlock clip

(LCB)4mdashType M two-pole contactors with mechanical interlock for

hoisting and lowering circuits (H L DB M)5 or 6mdashType M two-pole acceleration contactors

(1A 2A 3A 4A 5A 6A)3 4 or 5mdashType SZF static acceleration relays

(2AR 3AR 4AR 5AR)1mdash460380230 to 255 volt fused control circuit transformer

(CTR)1mdashControl Circuit Rectifier (RECT)1mdashType KFO under voltage relay (UV)1mdashBrake relay (BR)1mdashPneumatic timing transition relay (TR)3mdashType AO magnetic inverse time overload relays

(1OslashL 2OslashL 3OslashL)1mdashSZF power loss protection relay circuits

(SPR 2RECT 2MOV 2RES)

Volts3Ǿ

5060Hz

CraneRating

NEMAContactor

SizeMax

AmperesMaxHp

Primary Secondary

380

67 30 2 2133 60 3 3200 100 4 4400 150 5 5400 200 5 5

460

67 40 2 2133 80 3 3200 125 4 4400 200 5 5400 300 5 5

Select controller based on horsepower and rated primary and secondary current ForThese controllers have six speed points available but are used with 5point master switches the last aThese controllers have seven speed points available but are used with 6point master switches the last acceleratio

ORDERING INFORMATION REQUIRED See Page 23MODIFICATIONS See Page 24

CLASS

FRONTLINEreg AC CRANE CONTROL

AC DYNAMIC LOWERINGGENERAL INFORMATION

HOIST SERVICEreversing dynamic lowering controllers are recommended for use with ac wound rotor motors on crane hoist without mechanical

load brakes All controllers are arranged for use with rectifier operated dc shunt brakes or solenoid operated ac brakes

controller

Three pole magnetic main line circuit breaker with padlock clip

contactors with mechanical interlock for

d control circuit transformer

USES SINGLE PHASE MOTOR CONNECTION FORDYNAMIC LOWERING

SUITABLE FOR APPLICATIONS NOT REQUIRING SLOWLOWERING SPEED

MILL DUTY CLASS 8503 TYPE M CLAPPER TYPECONTACTORS

CLASS 8501 TYPE SZF STATIC ACCELERATION TIMERS

NoSpeedPoints

OpenType

General PurposeEnclosure NEMAType 1 Gasketed

Outdoor EnclosureNEMA Type 3R

Secondary

SINGLE MOTOR CONTROL

5 DOH71 DSH71 DWH715 EOH71 ESH71 EWH715 FOH71 FSH71 FWH715 GOH71 GSH71 GWH716diams GOH91 GSH91 GWH91

5 DOH71 DSH71 DWH715 EOH71 ESH71 EWH715 FOH71 FSH71 FWH715 GOH71 GSH71 GWH716diams GOH91 GSH91 GWH91

Select controller based on horsepower and rated primary and secondary current For explanation refer to Controller Ratings section of Application Dcontrollers have six speed points available but are used with 5point master switches the last acceleration point being relay controlledcontrollers have seven speed points available but are used with 6point master switches the last acceleration point being relay controlled

See Page 23See Page 24

APPLICATION INFORMATIONDIMENSIONAL INFORMATION

September 2008

reversing dynamic lowering controllers are recommended for use with ac wound rotor motors on crane hoist without mechanical

USES SINGLE PHASE MOTOR CONNECTION FOR

S NOT REQUIRING SLOW

MILL DUTY CLASS 8503 TYPE M CLAPPER TYPE

E SZF STATIC ACCELERATION TIMERS

Outdoor EnclosureDusttight

Enclosure NEMAType 12

DAH71EAH71FAH71GAH71GAH91

DAH71EAH71FAH71GAH71GAH91

Application Datacceleration point being relay controlled

n point being relay controlled

APPLICATION INFORMATIONSee Pages 23-25DIMENSIONAL INFORMATIONSee Pages 10amp11

September 2008 FRONTLINE

DYNAMIC LOWERING ELE

FRONTLINEreg AC CRANE CONTROL

DYNAMIC LOWERING ELEMENTARY DIAGRAM

AC CRANE CONTROL

5

CLASS

MENTARY DIAGRAM

CLASS

FRONTLINE

6

CLASS

GENERAL

Class 6422 reversing CONTRA-TORQUEreg controllers are recommendedmechanical load brakes but with fixed overhauling loads such as bucket crane hoistoperated dc shunt brakes or solenoid operated ac brakes

The standard single motor reversing CONTRA-TORQUEcontroller consists of

1mdashTwo pole control molded case switch (CMCS)1mdashThree pole magnetic main line circuit breaker with padlock clip

(LCB)2mdashType M two-pole contactors with mechanical interlock for

hoisting and lowering circuits (H L)1mdashType M two-pole main contactor (M)5 or 6mdashType M two-pole acceleration contactors

(1A 2A 3A 4A 5A 6A)5 or 6mdashType SZF frequency relays

(3AR 4AR 5AR 6AR OS NH)1mdash460380230 to 255 volt fused control circuit transformer

(CTR)1mdashControl Circuit Rectifier (RECT)1mdashType KFO under voltage relay (UV)2mdashPneumatic timing relays for counter-torque and lowering

relays (CTR LR)1mdashPneumatic timing transition relay (TR)3mdashType AO magnetic inverse time overload relays

(1OslashL 2OslashL 3OslashL)1mdashSZF power loss protection relay circuits

(SPR 2RECT 2MOV 2RES)

Volts5060Hz

CraneRating

NEMAContactor

SizeMax

AmperesMaxHp

Primary Secondary

380

67 30 2 2133 60 3 3200 100 4 4400 150 5 5400 200 5 5

460

67 40 2 2133 80 3 3200 125 4 4400 200 5 5400 300 5 5

Select controller based on horsepower and rated primary and secondary current ForThese controllers have six speed points available but are used withdiamsThese controllers have seven speed points available but are used with 6point master switches the last acceleration point being rel

ORDERING INFORMATION REQUIRED See Page 23MODIFICATIONS See Page

CLASS

FRONTLINEreg AC CRANE CONTROL

CONTRA-TORQUEreg

GENERAL INFORMATIONHOIST SERVICE

controllers are recommended for use with ac wound rotor motors on crane hoistbut with fixed overhauling loads such as bucket crane hoists All controllers are arranged for use with rectifier

operated dc shunt brakes or solenoid operated ac brakes

TORQUEreg

ine circuit breaker with padlock clip

contactors with mechanical interlock for

volt fused control circuit transformer

and lowering

PROVIDES SLOW LOWERING SPEEDS FOROVERHAULING LOADS ONLY

MILL DUTY CLASS 8503 TYPE M CLAPPER TYPECONTACTORS

CLASS 8501 TYPE SZF STATIC ACCELERATION TIMERS

NoSpeedPoints

OpenType

General PurposeEnclosure NEMAType 1 Gasketed

Outdoor EnclosureNEMA Type 3R

Secondary

SINGLE MOTOR CONTROL

5 DOH72 DSH72 DWH725 EOH72 ESH72 EWH725 FOH72 FSH72 FWH725 GOH72 GSH72 GWH726diams GOH92 GSH92 GWH92

5 DOH72 DSH72 DWH725 EOH72 ESH72 EWH725 FOH72 FSH72 FWH725 GOH72 GSH72 GWH726diams GOH92 GSH92 GWH92

Select controller based on horsepower and rated primary and secondary current For explanation refer to Controller Ratings section ofcontrollers have six speed points available but are used with 5point master switches the last acceleration point being relay controlledcontrollers have seven speed points available but are used with 6point master switches the last acceleration point being relay controlled

See Page 23See Page 24

APPLICATION INFORMATIONDIMENSIONAL INFORMATION

September 2008

for use with ac wound rotor motors on crane hoists withoutarranged for use with rectifier

LOWERING SPEEDS FOR

MILL DUTY CLASS 8503 TYPE M CLAPPER TYPE

STATIC ACCELERATION TIMERS

Outdoor EnclosureDusttight

Enclosure NEMAType 12

DAH72EAH72FAH72GAH72GAH92

DAH72EAH72FAH72GAH72GAH92

Controller Ratings section of Application Data5point master switches the last acceleration point being relay controlled

ay controlled

APPLICATION INFORMATION See Pages 23-25DIMENSIONAL INFORMATION See Pages 10amp11

September 2008 FRONTLINE

CONTRA

FRONTLINEreg AC CRANE CONTROL

CONTRA-TORQUEreg ELEMENTARY DIAGRAM

AC CRANE CONTROL

7

CLASS

CLASS

FRONTLINE

8

CLASS

REVERSING PLUGGINGClass 6426 controllers are recommended for used withThe hoist controllers are of the reversing hoist type and are used on cranes with mechanical load brakes Thereversing plugging type Both the hoist and the travel controlleroperated ac brakes

The standard single motor reversing hoist controller consists of equipment for a reversing plugging controllerfor plugging (PR)

BRIDGE OR TROLLEY SE

The standard single motor reversing controller consists of

1mdashTwo pole control molded case switch (CMCS)1mdashThree pole magnetic main line circuit breaker with padlock clip

(LCB)2mdashType M two-pole contactors with mechanical interlock1mdashType M two-pole main contactor (M)4 or 5 or 6Type M two-pole acceleration contactors (including one

for plugging) (P 1A 2A 3A 4A 5A 6A)3 or 4 or 5Type ST1 static acceleration timers

(1AR 2AR 3AR 4AR 5AR)1mdashType SZF frequency relay for plugging (PR)1mdash460380230 to 255 volt fused control circuit transformer

(CTR)1mdashControl Circuit Rectifier (RECT)1mdashType KFO under voltage relay (UV)3mdashType AO magnetic inverse time overload relays

(1OslashL 2OslashL 3OslashL)

1mdashSZF power loss protection relay circuit(SPR 2RECT 2MOV 2RES)

The standard duplex reversing plugging controller consists of theequipment for a single motor controller with the exceptionfollowing equipment is added4 or 5mdashType M two-pole acceleration contactors

(2P 21A 22A 23A 24A)3mdashType AO magnetic inverse time overload relays

(4OslashL 5OslashL 6OslashL)

Volts5060Hz

CraneRating

NEMAContactor

Size

MaxAmperes

MaxHp

Primary Secondary

Primary Secondary

380

67 67 30 2 2133 133 60 3 3200 200 100 4 4400 400 150 5 5400 400 200 5 5

460

67 67 40 2 2133 133 80 3 3200 200 125 4 4400 400 200 5 5400 400 300 5 5

380

67 67 30 2 2133 133 60 3 2200 200 100 4 3400 400 150 5 4400 400 200 5 5

460

67 67 40 2 2133 67 80 3 2200 133 120 4 3400 200 200 5 4400 400 300 5 5

Select controller based on motor horsepower and rated primary and secondary current FordiamsPrice is for single motor reversing plugging or reversing hoist For reversing hoist change theThese controllers have 6 speed points available but are used with 5point master switches the last acceleration point beingThese controllers have seven speed points available but are used with 6point master swit

ORDERING INFORMATION REQUIRED See Page 23MODIFICATIONS See Page 24

CLASS

FRONTLINEreg AC CRANE CONTROL

REVERSING PLUGGING CONTROLfor used with ac wound rotor motor on hoist and travel drives of general-purpose

The hoist controllers are of the reversing hoist type and are used on cranes with mechanical load brakes The travel panels are of thecontrollers are arranged for use with rectifier operated dc shunt brakes or solenoid

HOIST SERVICEThe standard single motor reversing hoist controller consists of equipment for a reversing plugging controller but without

BRIDGE OR TROLLEY SERVICE

The standard single motor reversing controller consists of

Three pole magnetic main line circuit breaker with padlock clip

contactors with mechanical interlock (F R)

including one

volt fused control circuit transformer

rsing plugging controller consists of thefor a single motor controller with the exception that the

MILL DUTY CLASS 8503 TYPE M CLAPPER TYPECONTACTORS

CLASS 8501 TYPE SZF FREQUENCY ACCELERATIONRELAYS FOR PLUGGING

CLASS 7001 TYPE ST1 STATICACCELERATION TIMERS

NoSpeedPoints

OpenType

General PurposeEnclosure NEMAType 1 Gasketed

Outdoor EnclosureNEMA Type 3R

Secondary

SINGLE MOTOR CONTROL

5 DOR76 DSR76 DWR765 EOR76 ESR76 EWR765 FOR76 FSR76 FWR765 GOR76 GSR76 GWR766 GOR96 GSR96 GWR96

5 DOR76 DSR76 DWR765 EOR76 ESR76 EWR765 FOR76 FSR76 FWR765 GOR76 GSR76 GWR766 GOR96 GSR96 GWR96

DUPLEX MOTOR CONTROL5 DOR86 DSR86 DWR865 EOR86 ESR86 EWR865 FOR86 FSR86 FWR865 GOR86 GSR86 GWR865 GOR106 GSR106 GWR106

5 DOR86 DSR86 DWR865 EOR86 ESR86 EWR865 FOR86 FSR86 FWR865 GOR86 GSR86 GWR865 GOR106 GSR106 GWR106

Select controller based on motor horsepower and rated primary and secondary current For explanation refer to Controller Ratings section of Application DataPrice is for single motor reversing plugging or reversing hoist For reversing hoist change the R in the type to an H

These controllers have 6 speed points available but are used with 5point master switches the last acceleration point being relay controlledThese controllers have seven speed points available but are used with 6point master switches the last acceleration point being relay controlled

See Page 23See Page 24

APPLICATION INFORMATIONDIMENSIONAL INFORMATION

September 2008

purpose overhead cranespanels are of the

r operated dc shunt brakes or solenoid

out SZF frequency relay

MILL DUTY CLASS 8503 TYPE M CLAPPER TYPE

CLASS 8501 TYPE SZF FREQUENCY ACCELERATION

STATICACCELERATION TIMERS

DusttightEnclosure NEMA

Type 12

DAR76EAR76FAR76GAR76GAR96

DAR76EAR76FAR76GAR76GAR96

DAR86EAR86FAR86GAR86

GAR106

DAR86EAR86FAR86GAR86

GAR106Application Data

APPLICATION INFORMATION See Pages 23-25DIMENSIONAL INFORMATION See Pages 10amp11

September 2008 FRONTLINE

REVERSING PLUGGING E

FRONTLINEreg AC CRANE CONTROL

REVERSING PLUGGING ELEMENTARY DIAGRAM

AC CRANE CONTROL

9

CLASS

LEMENTARY DIAGRAM

CLASS

FRONTLINE

10

CLASS

CLASS

APPROXIMATE DIMENSIOSINGLE AND DUPLEX MOTOR CONTROL STANDA

OPEN TYPE

MAXIMUM HP

460V 380VHin

mm

HOISTClasses6420 amp6422

40 3048

1219

80 6048

1219

125 10048

1219200 150

NOT A300 200

HOISTClasses6421 amp6426

ampBridge orTrolleyClass6426

40 3048

1219

80 6048

1219

125 10048

1219

NOT A200 150

300 200

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMENSIONS AND WEIGHTSMOTOR CONTROL STANDARD CONTROLLERS

ENCLOSED TYPE

OPEN TYPE ENCLOSED TYPE

Win

mm

Cin

mm

NETWeightLbskg

Win

mm

Cin

mm

SINGLE MOTOR CONTROL69

175312305

52523848

121969

175369

175312305

70031848

121969

175369

175312305

70031848

121969

1753

NOT AVAILABLE IN STANDARD DIMENSIONS SEE NARROW WIDTH DIM

DUPLEX MOTOR CONTROL69

175312305

50022748

121969

175369

175312305

70031848

121969

175369

175312305

70031848

121969

1753

NOT AVAILABLE IN STANDARD DIMENSIONS SEE NARROW WIDTH DIM

September 2008

RD CONTROLLERS

ENCLOSED TYPE

ENCLOSED TYPE

Din

mm

NETWeightLbskg

15381

750341

15381

900409

15381

900409

SEE NARROW WIDTH DIMENSIONS

15381

700318

15381

900409

15381

900409

SEE NARROW WIDTH DIMENSIONS

September 2008 FRONTLINE

APPROXIMATESINGLE AND DUPLEX

OPEN TYPE

DRIVE

MAXIMUM HP

460V 380Vmm

HOIST(All Classes)and Bridge

Trolley

40 30

80 601727

125 1001727

200 1501981

300 2001981

CLASS 6426Bridge and

Trolleyonly

40 30

80 601727

125 1001727

200 150

300 200

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMENSIONS AND WEIGHTSAND DUPLEX MOTOR CONTROL NARROW WIDTH CONTR

ENCLOSED TYPE

OPEN TYPE

Hin

mm

Win

mm

Cin

mm

NETWeightLbskg

Hin

mm

SINGLE MOTOR CONTROL- - - - -

681727

631600

12305

70031868

172768

172763

160012305

70031868

172778

198177

195615381

130059078

198178

198177

195615381

130059078

1981DUPLEX MOTOR CONTROL

- - - - -68

172775

190512305

100045468

172768

172775

190512305

100045468

1727

NOT AVAILABLE IN STANDARD DIMENSIONS SEE NARROW WIDTH DIM

AC CRANE CONTROL

11

CLASS

CLASS6420642164226426CONTROLLERS

ENCLOSED TYPE

ENCLOSED TYPE

Win

mm

Din

mm

NETWeightLbskg

- -63

160015381

900409

631600

15381

900409

771956

17482

1800817

771956

17482

1800817

- -75

190515381

1400635

751905

15381

1400635

SEE NARROW WIDTH DIMENSIONS

FRONTLINE

12

CLASS

WITH SQUARE DGENERAL INFORMATION

Class 6435 controllers are recommended for used withThe hoist controllers are of the reversing dynamic lowering type whenhoist type when used on cranes with mechanical load brakestravel controls are designed for use with rectifier operated dc brakes or solenoid operated ac brakes

The standard single motor reversing hoist controller consists of equipment for afrequency relay plugging The standard single motor reversing dynamic lowering hoist controller consists of the equipment for a single motorreversing plugging controller with one additional type S three pole contactorprovided (CR) and a pneumatic timing delay is deleted (IA)NOTE DUPLEX CONTROLLERS ARE NOT AVAILABLE

The standard single motor reversing plugging controller consistsof

1mdashTwo pole control molded case switch (MCB)1mdashThree pole magnetic main line circuit breaker with padlock clip

(LCB)2mdashType S three-pole directional contactors with mechanical

interlock (F R)3mdashType S three-pole acceleration contactors (including one for

plugging) (1A 2A P)2mdashPneumatic timing acceleration units (1A 2A)1mdashType SZF frequency relay for plugging (PR)1mdash460230 to 115 volt fused control circuit transformer (1mdashControl Circuit Rectifier (RECT)1mdashUndervoltage relay (UV)3mdashMagnetic inverse time overload relays (1OslashL 2OslashL 3OslashL1mdashSZF power loss protection relay circuit (SPR 2RECT 2MOV2RES)

Volts5060Hz

CraneRating

ContactorMaxAmperes

MaxHp

Primary SecondaryREVERSING AC

38067 100 30133 199 60

46067 100 40133 199 80

38067 100 30133 199 60

46067 100 40133 199 80

REVESING PLUGGING BRIDGE OR TROLLEY CONTROL

38067 100 30133 199 60

46067 100 40133 199 80

Select controller based on horsepower and rated primary and secondary current For

ORDERING INFORMATION REQUIRED

1 Class2 Type3 Motor Horsepower

4 Motor Primary Rated Voltage and Current5 Motor Secondary Rated Voltage and Current6 Controller Modifications Specify Form Numbers

CLASS

FRONTLINEreg AC CRANE CONTROL

SQUARE D CLASS 8502 TYPE S CONTACTORSreg

GENERAL INFORMATIONHOIST SERVICE

controllers are recommended for used with ac wound rotor motor on hoist and travel drives of general-purposedynamic lowering type when used on cranes without mechanical load brakes and are of the reversing

hoist type when used on cranes with mechanical load brakes The travel controllers are of the reversing plugging type Both the hoist and thefor use with rectifier operated dc brakes or solenoid operated ac brakes

BRIDGE OR TROLLEYThe standard single motor reversing hoist controller consists of equipment for a single motor reversing plugging controller

The standard single motor reversing dynamic lowering hoist controller consists of the equipment for a single motorS three pole contactor provided for dynamic lowering (DB) one additional control relay

pneumatic timing delay is deleted (IA)NOTE DUPLEX CONTROLLERS ARE NOT AVAILABLE

controller consists

Three pole magnetic main line circuit breaker with padlock clip

contactors with mechanical

(including one for

5 volt fused control circuit transformer (CTR)

1OslashL 2OslashL 3OslashL)SZF power loss protection relay circuit (SPR 2RECT 2MOV and

CLASS 8502 TYPE S CONTACTORS PNEUMATOC TIMING ACCELERATION CLASS 8501 TYPE SZF FREQUENCY RELAY FOR

PLUGGING

NEMAContactor

Size

NoSpeedPoints

OpenType

General PurposeEnclosure NEMAType 1 Gasketed

REVERSING AC DYNAMIC LOWERING HOIST CONTROL2 4 DOH71 DSH713 4 EOH71 ESH712 4 DOH71 DSH713 4 EOH71 ESH71REVERSING HOIST CONTROL2 4 DOH76 DSH763 4 EOH76 ESH762 4 DOH76 DSH763 4 EOH76 ESH76

REVESING PLUGGING BRIDGE OR TROLLEY CONTROL2 4 DOR76 DSR763 4 EOR76 ESR762 4 DOR76 DSR763 4 EOR76 ESR76

Select controller based on horsepower and rated primary and secondary current For explanation refer to Controller Ratings section of

ORDERING INFORMATION REQUIRED

4 Motor Primary Rated Voltage and Current5 Motor Secondary Rated Voltage and Current6 Controller Modifications Specify Form Numbers

7 Resistors Services Classification8 Master Switch Type and Form Number

September 2008

purpose overhead cranesout mechanical load brakes and are of the reversing

versing plugging type Both the hoist and the

reversing plugging controller but without SZFThe standard single motor reversing dynamic lowering hoist controller consists of the equipment for a single motor

one additional control relay

LASS 8502 TYPE S CONTACTORSPNEUMATOC TIMING ACCELERATION

FREQUENCY RELAY FOR

Outdoor EnclosureNEMA Type 3R

DWH71EWH71DWH71EWH71

DWH76EWH76DWH76EWH76

DWR76EWR76DWR76EWR76

refer to Controller Ratings section of Application Data

7 Resistors Services Classification8 Master Switch Type and Form Number

September 2008 FRONTLINE

WITH CLASSTRAVEL CONTROL

FRONTLINEreg AC CRANE CONTROL

WITH CLASS SQUARE D 8502 TYPE S CONTACTOTRAVEL CONTROL ELEMENTARY DIAGRAM

AC CRANE CONTROL

13

CLASS

8502 TYPE S CONTACTORS

CLASS

FRONTLINE

14

CLASS

WITH CLASS SQUARE DREVERSING HOIST

CLASS

FRONTLINEreg AC CRANE CONTROL

SQUARE D 8502 TYPE S CONTACTORSREVERSING HOIST ELMENTARY DIAGRAM

September 2008

September 2008 FRONTLINE

WITH CLASS SQUARE DDYNAMIC LOWERING HOI

FRONTLINEreg AC CRANE CONTROL

WITH CLASS SQUARE D 8502 TYPE S CONTACTODYNAMIC LOWERING HOIST ELEMENTARY DIAGRAM

AC CRANE CONTROL

15

CLASS

8502 TYPE S CONTACTORSDIAGRAM

CLASS

FRONTLINE

16

CLASS

APPROXIMATE DIMENSIOCLASS 8502 TYPE S CO

OPEN TYPE

DriveMaximum

HP(Volts)

Open Type

Hin

mm

Win

mm

Hoist orTravel

20(380)

401016

24607

40(460)

401016

24607

40(380)

401016

30762

80(460)

401016

30762

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMENSIONS AND WEIGHTSCLASS 8502 TYPE S CONTACTORS

ENCLOSED TYPE

Open Type Enclosed Type

Cin

mm

NetWeightlbskg

Hin

mm

Win

mm

85216

1506842

106730762

85216

1506842

106730762

10254

2009142

106736914

10254

2009142

106736914

September 2008

ENCLOSED TYPE

Enclosed Type

Din

mm

NetWeightlbskg

15381

300136

15381

300136

15381

385175

15381

385175

September 2008 FRONTLINE

A set of TABWELDreg resistors are required forapplications

RESISTOR APPLICATION

For resistors mounted in racks unwired ndash refer to Class 6715

Class 151 and 152 is recommended for light crane duty

Class 161 and 162 is recommended for standard duty

Class 171 and172 is recommended for severe duty

For explanation of NEMA resistor classifications

CLASS 6715 RESISTORS

To order an AC acceleration resistor set for use with duplex Cpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V andat 67A

Controller Class EnclosureMotorRating

ControlScheme

Code Type Code Code

6420 A0None N

ldquoHrdquo(HP)

6421 A16422 A2

Open O6426 A6

Hoist6435

A7Nema

1G

ldquoKrdquo(kw)

Travel6435

A8Nema

3RW

CustomerDesign

A99NemaScreenCovers

C

NEMA ClassSpeed Points

System VoltageMotor Rated Voltage

Class 6715

Controller TypeEnclosure

Motor Power

Motor ConfigurationRotor Volts

Rotor Amps

FRONTLINEreg AC CRANE CONTROL

SELECTION AND APPLICATIONe required for each AC motor control The following table is for selecting resistor for all AC motor control

RESISTOR APPLICATION

refer to Class 6715

Class 151 and 152 is recommended for light crane duty

Class 161 and 162 is recommended for standard duty

Class 171 and172 is recommended for severe duty

For explanation of NEMA resistor classifications ndash refer to Class 6715

CLASS

CLASS 6715 RESISTORS SELECTION TABLE

EXAMPLE AC RESISTOR SETTo order an AC acceleration resistor set for use with duplex CONTRA-TORQUE hoist (2 motors in parallel) NEMA 161 duty cycle 5 speedpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V and

CLASS 6715 RESISTOR SELECTION TABLE

NEMA DUTYSpeedPoints

NO

SystemVoltage

MotorRated

Voltage

Class Code Code V Code V Code

151 A3 208 2 208 2152 B

161 C

162 D4 380 3 380 3171 E

172 F91 G

5460 4 460 4

92 H

CustomerDesign

CS 575 5 575 56

4 4A2 G 37K C 5Class 6715

AC CRANE CONTROL

17

CLASS

The following table is for selecting resistor for all AC motor control

6715

hoist (2 motors in parallel) NEMA 161 duty cycle 5 speedpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V and rotor amps

MotorConfiguration

Ro

tor

Ro

tor

Code Type Code

Simplex S

Vo

lts

Am

psDuplex D

Quadruplex Q

4 D 350V 67A

CLASS

FRONTLINE

18

CLASS

APPROXIMATE NUMBER OCLASS 6715 TABWELD R

This tabulation is based on ECampM resistor designs for use with Class 6420 6421 6422 6426 controllerstabulation is for typical drive loading and for motors with standard NEMA secondary values of voltage andconsult factory with actual motor data

Max HPRating Single

Motor

6420Hoist

161 171 152

5 2 2 1

7 12 2 2 1

10 2 2 1

15 2 3 2

20 3 3 2

25 2 3 2

30 3 3 2

40 3 4 2

50 4 6 2

60 4 6 3

75 6 12 4

100 7 9 4

125 8 12 6

150 12 15 6

200 12 18 9

250 12 21 9

This tabulation is based on ECampM resistor designs for use with Class 6435drive loading and for motors with standard NEMA secondary values of voltage and

MaximumHP

HoistDynamic Lowering

NEMA Class152 162

5 1 175 1 110 1 215 2 220 2 225 2 330 2 340 3 350 3 460 3 475 4 6

NEMA SERVICE CLASSIF

Standard 6435 controllers meet the requirements of NEMA Services Crequirements of NEMA service classifications I (CMAA Sspeed point modification Form M3

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE NUMBER OF SEPARATELY MOUNTED STANDARSCLASS 6715 TABWELD RESISTOR SECTIONS (265rdquo LONG)

resistor designs for use with Class 6420 6421 6422 6426 controllers and is for estimatetabulation is for typical drive loading and for motors with standard NEMA secondary values of voltage and current For act

6421Hoist

6422Hoist

162 172 161 171 152

1 1 2 2 1

1 2 2 2 1

2 2 3 3 1

2 2 3 4 2

2 2 4 5 2

2 3 4 6 2

2 3 5 7 2

2 3 6 7 3

2 4 7 9 3

3 4 8 9 3

4 6 9 13 4

5 7 12 18 4

6 9 14 21 7

6 9 18 30 9

9 12 24 36 9

12 15 30 42 12

r designs for use with Class 6435 controller and is for estimate only This tabulation is fordrive loading and for motors with standard NEMA secondary values of voltage and current For actual quantities consult factory

HoistReversing

TravelReverse Plugging

NEMA Class NEMA Class152 162 1521 1 11 1 11 1 11 2 11 2 22 3 22 3 33 3 33 4 33 4 44 6 4

NEMA SERVICE CLASSIFICATIONS

meet the requirements of NEMA Services Classification II (CMAA service classifications A2 and B) to meet theervice classifications I (CMAA Service Classifications A1 C D E and F) the controller must be priced with the 5

September 2008

STANDARS

estimate only Thiscurrent For actual quantities

6426Hoist Bridge or Trolley

162 172

1 1

1 1

1 2

2 2

2 2

2 3

3 3

3 4

4 4

4 4

4 5

6 9

9 9

9 12

12 15

15 18

This tabulation is for typicalFor actual quantities consult factory

TravelReverse Plugging

NEMA Class162

11222334456

lassification II (CMAA service classifications A2 and B) to meet theE and F) the controller must be priced with the 5th

September 2008 FRONTLINE

MASTER SWITCHES AND

Class 9004 Type VGMaster Switch

CLASS 9004 VM OR CM

Control Class Speed Points

6420556

642156

642256

6426556

Motion Speed PointsHoist

(Dynamic Lowering)45

Hoist(Reversing)

45

Travel(Reverse Plugging)

45

Refer to Class 9004 catalog for more information

FRONTLINEreg AC CRANE CONTROL

GENERAL INFORMATIONMASTER SWITCHES AND MODIFICATIONS

Class 9004 Type CGMaster Switch

CLASS 9004 VM OR CM NEMA 1 ENCLOSED

oints Form VM TYPE

C1VG9

VG12

B1VG12VG16

D1VG12VG16

A1VG9

VG12

CONTROL 6435Form MA VM

A2AG9 VG9AG9 VG9

A3AG6 VG6AG9 VG9

A3AG6 VG6AG9 VG9

Refer to Class 9004 catalog for more information

AC CRANE CONTROL

19

CLASS

Class 9004 Type CGMaster Switch

CM TYPE

CG12CG12CG12CM16CG12CG16

CG12CG12

VM CMVG9 CG8VG9 CG12VG6 CG6VG9 CG8VG6 CG6VG9 CG8

CLASS

FRONTLINE

20

CLASS

GENERALMANUAL MAGNETIC DISC

The manual magnetic disconnect switch is used for protecting electrical crane circuits exOHSA requirements for a crane disconnect switchThe standard disconnect switch consists of

3mdashClass 8503 Type M form Y781 (with silver faced power contacttips) SPNO contactors The contactors are mechanically tiedOne normally open and one normally closed electricalinterlocks are included for indicating lights

1mdashTwo pole control molded case switch with padlock clip (1mdash460380230 to 255 volt fused control circuit transformer (1mdashIntermediate relay (CR)1mdashClass 9999AI1 Arc Suppressor

Volts5060Hz

NEMAContactor

Size

MaxAmperes

380or

460

4 1505 3006 6008 1350

Form

F30A

3 Main Line Power FusesStart-Stop Push Button

X11Additional Control CircuitNC interlocks can be added

A3 ldquoOnOffrdquo PushbuttonP1 Red ldquoOnrdquo Pilot LightP2 Green ldquoOffrdquo Pilot LightT12 200VA Additional Transformer Capacity

Class L fuse mounting is standard Customer

PILOT DEVICESThe pilot devices should be selected so the current rating is adequate for controlling the disconnect switch For coil9998 Coil Data catalog sheets An arc inhibitor may be required depending upon the ra

DISCONNEWhen applied to cranes the continuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated currentrequired by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

ORDERING INFORMATION REQUIRED1 Class2 Type3 Voltage4 Controller Modifications Specify Form

CLASS

FRONTLINEreg AC CRANE CONTROL

GENERAL INFORMATIONMANUAL MAGNETIC DISCONNECTS SWITCHES

etic disconnect switch is used for protecting electrical crane circuits except lifting magnet circuits The disconnect meets

ype M form Y781 (with silver faced power contacttips) SPNO contactors The contactors are mechanically tiedOne normally open and one normally closed electrical

case switch with padlock clip (CMCS)volt fused control circuit transformer (CTR)

CAM OPERATOR PREVENTSFROM CLOSING WHEN HANDLE IS IN OFFPOSITION

CONTACTORS OPERATED REMOTELY OR BYHANDLE ON THE ENCLOSURE

Amperes

Enclosures

General PurposeNEMA Type 1 gasketed

Dusttight NEMA Type 12Outdoor NEMA Type 3R

MFS12 MFA12MGS12 MGA12MHS12 MHA12MKS12 MKA12

MODIFICATIONSDescription

Main Line Power FusesStop Push Button

Additional Control Circuit Interlocks A maximum of 4 NONC interlocks can be added

Offrdquo PushbuttonRed ldquoOnrdquo Pilot LightGreen ldquoOffrdquo Pilot Light200VA Additional Transformer Capacity

Class L fuse mounting is standard Customer is to supply fuse rating

PILOT DEVICES SELECTIONThe pilot devices should be selected so the current rating is adequate for controlling the disconnect switch For coil currents9998 Coil Data catalog sheets An arc inhibitor may be required depending upon the ratings of the pilot device

DISCONNECT SWITCH SELECTIONcontinuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated current

required by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

September 2008

t lifting magnet circuits The disconnect meets

AM OPERATOR PREVENTS CONTACTORFROM CLOSING WHEN HANDLE IS IN OFF

ORS OPERATED REMOTELY OR BYHANDLE ON THE ENCLOSURE

currents refer to Class

continuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated currentrequired by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

September 2008 FRONTLINE

MANUAL MAGNETIC DISC

FRONTLINEreg AC CRANE CONTROL

MANUAL MAGNETIC DISCONNECT ELEMENTARY DIAGRA

AC CRANE CONTROL

21

CLASS

AGRAM

CLASS

FRONTLINE

22

CLASS

APPROXIMATE DIMESION

NEMASize

ContinuousAmpereRating A B C D

4 15018457

5127

8203

19483

5 30014356

3589

45114

28711

6 60018457

5127

8203

19483

8 135014356

5127

8203

28712

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMESIONS AND WEIGHTS

D E F G H J K L M

19483

30762

36914

2864727

315800

33838

3589

16229

36914

28711

33838

36914

267678

345876

36914

7178

72183

36914

19483

421067

421067

322818

4351105

451143

3589

10483

421067

28712

57838

441118

363922

345864

36914

70178

59137

741275

September 2008

M N

NetWeight

36914

15381

21096

36914

20508

235107

421067

20508

285130

741275

28508

300138

September 2008 FRONTLINE

MULTIMOTOR DRIVESTwo motors connected in parallel (duplex)control primary equipment and two sets of motor controlsecondary equipment are required in the controller Two sets ofpower resistors are also required

Four motors connected in parallel (quadruplex)necessary to double the duplex controller price given for twomotors in parallel One set of motor control primary and four setsof motor control secondary equipment are required Four sets opower resistors are required

CONTROLLERSNarrow width controllers ndash Most controllers ara narrow width construction These controllers when compared tostandard controllers are reduced width and increased height Fordetails see controller modifications and controller dimension

CONTROLLER MODIFICAT

Form Description

D6 Motor Isolating Circuit Breakers

B5 Brake Relay Reverse Plugging Controller Only

Y17 Arc Inhibitors Pendant Operated Controller

G95 Miniature Voltmeter Panel Mounted

G91 Miniature Ammeter Panel Mounted

E18 Narrow Width Panel

M24Substitute Type SZF Frequency Relay For ST1 StaticAcceleration Timers

H18Cabinet Space Heater Controlled By Interlock From MContactor

For Duplex Controllers For Duplex controllers multiply price by 2

1 Class2 Type3 Motor Horsepower4 Motor Primary Rated Voltage and Current

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATA

MULTIMOTOR DRIVESTwo motors connected in parallel (duplex) ndash One set of motorcontrol primary equipment and two sets of motor controlsecondary equipment are required in the controller Two sets of

Four motors connected in parallel (quadruplex) ndash It islex controller price given for two

motors in parallel One set of motor control primary and four setsof motor control secondary equipment are required Four sets of

CONTROLLERSMost controllers are also available in

a narrow width construction These controllers when compared tostandard controllers are reduced width and increased height For

see controller modifications and controller dimension

CONTROLLER MStandard controllers come equipped with the components listedSpecial features to be added to standard controllers are identifiedby Form number Most modifications are self

FORM D6 list motor isolation circuit breakers for use on duplexcontrollers For operation of the drive on one motor the motorline and connect breakers will disconnect one motor from the lineand connect the frequency relays to the power resistors of theother motor The brakes of the motor not in service are stillreleased electrically

FORM G95 lists a 3 frac12rdquo square miniature voltmeter to monitor onephase of motor primary voltage

FORM G9 lists a 3 frac12rdquo square miniature ammeter to monitor onephase of motor primary current Current transformersform are supplied Form G9 for motors above 10 HP20 HP 460 volts

CONTROLLER MODIFICATIONS

Brake Relay Reverse Plugging Controller Only

Arc Inhibitors Pendant Operated Controller

Substitute Type SZF Frequency Relay For ST1 Static

Cabinet Space Heater Controlled By Interlock From M

APPLICATION DATACLASS 6420 EDDYMAG

DYNAMIC MODEL AB-

MOTOR HPRATING

Brake Size

900 RMP Motors

Light DutyServices

SevereDutyServices

7 12 703

10 704

15 704

20 705

25 705

30 705

40 706

50 706

60 706

75 707

100 707

125 707

150 707200 708250 708300 708

ORDERING INFORMATION REQUIRED

5 Motor Secondary Rated Voltage andCurrent6 Controller Modifications Specify FormNumbers

7 Resistors Services Classification8 Master Switch Type and Form Number

AC CRANE CONTROL

23

CLASS

CLASS

CONTROLLER MODIFICATIONSStandard controllers come equipped with the components listedSpecial features to be added to standard controllers are identifiedby Form number Most modifications are self explanatory

list motor isolation circuit breakers for use on duplexcontrollers For operation of the drive on one motor the motorline and connect breakers will disconnect one motor from the lineand connect the frequency relays to the power resistors of the

motor The brakes of the motor not in service are still

lists a 3 frac12rdquo square miniature voltmeter to monitor one

lists a 3 frac12rdquo square miniature ammeter to monitor oneCurrent transformers with this

for motors above 10 HP 230 volt and

PPLICATION DATACLASS 6420 EDDYMAG HOIST

-FLOOR MOUNTED BRAKE

1200 RMP MotorsSevereDutyServices

Light DutyServices

SevereDutyServices

704 703 703

704 703 704

705 704 704

705 704 705

705 705 705

706 705 705

706 705 706

706 706 706

707 706 706

707 706 706

707 707 707

707 707 707

708 707 707708 707 708708 708 708--- 708 708

7 Resistors Services Classification8 Master Switch Type and Form Number

FRONTLINE

24

CLASS

CLASS

CRANE HOOK SPEED VS

CLASS 6421DYNAMIC LO

FIRST

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

O

FSY

NC

HR

ON

OU

SSP

EED

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

SY

NC

HR

ON

OU

SSP

PED

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATACRANE HOOK SPEED VS LOAD PERFORMANCE

CLASS 6420 EDDYMAGreg

CLASS 6421DYNAMIC LOWERING HOIST

FIRST

SECOND

THIRD

FOURTH

FIFTH

FIRST

SECOND

THIRD

FOURTH

FIFTH

40 60 80 100 120 140 160 180

LOAD PERFORMANCE IN OF SYNCHRONOUS SPEED

SECOND

THIRDFOURTH

FIFTH

FIRST

FIRST

SECOND amp THIRD

40 60 80 100 120 140 160 180

LOAD PERFORMANCE IN OF SYNCHRONOUS SPEED

September 2008

200

FIFTH

180 200

September 2008 FRONTLINE

CRANE HOOK SPEEDCLASS 6422 CONTRA

CLASS 6426

SECONDFIRST

FOURTH

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

O

FSY

NC

HR

ON

OU

SSP

EED

FIRST

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

SY

NC

HR

ON

OU

SSP

EED

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATACRANE HOOK SPEED VS LOAD PERFORMANCE

CLASS 6422 CONTRA-TORQUEreg

CLASS 6426 REVERSING HOIST CONTROL(With Mechanical Load Brake)

FIFTH

AUTOMATIC

FOURTH

THIRD

FIRST amp SECOND

SECOND

THIRD

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUS SPEED

SIXTH

SECOND

THIRD

FOURTH

FIFTH

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUSE SPEED

25

CLASS

CLASS

FIFTH

AUTOMATIC

FIRST amp SECOND

180 200

180 200

FRONTLINE

26

CLASS

AC CONTACTOR CONTROL

System AC Contactor Control

Crane Components

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switchradio controlReversing hoistsmechanical load brake gearboxAll other hoist stylesgearbox Best and critical positioning controlrequires E

ResistorsAcceleration resistor setSize based on HP amp duty cycle

Mo

tor

Perf

orm

an

ce

General

Velocity and acceleration is load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

More abrupt speed point

Slowdown

Travel Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

Hoist OFF point slowdown and braking withEddy-Current brakeDB circuitry

OFF Point

Travel No OFF point braking via control

Hoist OFF point braking by Eddybrake CONTRA

Reversing

Travel Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allowsoperation

Hoist Drive is stopped before each changein direction

Power ConsumptionPower dissipated in rotor resistors inspeed points

Component Wear

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Motors Encoders

Requires wound rotor motorNo encoder feedback

Motor blower not typically requiredoperation at reduced motor velocity as fulltorque is not available at zero speed

FRONTLINEreg AC CRANE CONTROL

AC CONTACTOR CONTROL vs DRIVES

AC Contactor Control Variable Frequency Drive

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switch and pendant orradio controlReversing hoists require worm gear ormechanical load brake gearbox

hoist styles require standardgearbox Best and critical positioning control

es Eddy-Current load brake

Inverter-duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limitpendant or radio controlOpen loop hoist controls require worm gear ormechanical load brake gearboxClosed loop hoist controlswith motor encoder feedback

Acceleration resistor set requiredSize based on HP amp duty cycle

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration is load dependantVelocity and acceleration are minimally (open(closed loop) load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

More abrupt speed point transitions Smooth speed point transitions

Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

OFF point slowdown and braking withurrent brake CONTRA-TORQUEreg or

DB circuitry

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

No OFF point braking via control

OFF point braking by Eddy-CurrentCONTRA-TORQUEreg or DB circuitry

OFF point Dynamic Braking (DB)deceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allows reacceleration after relayoperation

Drive is stopped before each changein direction

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speedachieved

Power dissipated in rotor resistors in lowspeed points

Uses less power at reduced velocity and duringacceleration

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Power contactors eliminatedMotor current switched by solidSpare drive recommended

Requires wound rotor motorNo encoder feedback required

Inverter-duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Motor blower not typically required foroperation at reduced motor velocity as fulltorque is not available at zero speed

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and highduty cycles

September 2008

Frequency Drive

duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limit switches master switch

require worm gear ormechanical load brake gearbox

require standard gearbox butwith motor encoder feedback

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration are minimally (open loop) or not(closed loop) load dependant

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

Smooth speed point transitions

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

OFF point Dynamic Braking (DB) with programmabledeceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speed

Uses less power at reduced velocity and during

Power contactors eliminatedMotor current switched by solid-state componentsSpare drive recommended

duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and high

September 2008 FRONTLINE

CLASS 5010 WB DRUM BRAKES

AIST rated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Hold drive stationary when motor is off

Available in 8rdquo to 30rdquo wheel diameters

Torque ratings 100 through 9000 ft-lbs

Corrosion resistant pins are standard on all brake sizes

Grease fittings are standard on 19rdquo 23rdquo and 30rdquo brake sizes

Available with optional self-adjuster

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

AIST rated and suitable for all crane classes

Used on bridge and trolley (horizontal travel) drives

Provide fixed holding torque for parking

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000

Stopping torque ratings up to 300 850 and 1500

Available for AC or DC control systems

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL(Contactor) CONTROLS

Hoist drive styles include Eddy-Current Brakeand Reversing Hoist controls

Reversing Plugging control for bridge and trolley (travel) drives

Meets NEMA Service Classification I

Available in NEMA contactor sizes 2 through 6

Numerous modifications available

Uses Class 8503 Type M Line-ARCreg contactors static timers

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

Meet OSHAamp NEC requirements for AC

Available in continuous ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by

Mechanical amp electrical interlocks prevent switch

CLASS 6170 YOUNGSTOWNreg

HOIST POWER LIMIT SWITCHES

Final safety limits for hoist upper travel

Interrupts motor power directly

Available in ratings up to 500HP at 230VDC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER

FRONTLINEreg AC CRANE CONTROL

ated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Corrosion resistant pins are standard on all brake sizes

andard on 19rdquo 23rdquo and 30rdquo brake sizes

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

ated and suitable for all crane classes

travel) drives

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000 ft-lbs respectively

Stopping torque ratings up to 300 850 and 1500 ft-lbs respectively

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL

Current Brake CONTRA-TORQUEreg AC Dynamic Lowering

bridge and trolley (travel) drives

Available in NEMA contactor sizes 2 through 6 through 300HP for single or multiple motors

contactors static timers and frequency relays for acceleration

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

crane disconnect switch

ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by the enclosure handle

Mechanical amp electrical interlocks prevent switch operation with handle in the OFF position

HOIST POWER LIMIT SWITCHES

to 500HP at 230VDC or up to 400HP at 460VAC and 550VAC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on-line at wwwECandMnet

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER MILL DUTY CONTROL COMPONENTS27

CLASS

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

FRONTLINE

28

CLASS

FRONTLINEreg AC CRANE CONTROL

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

copyCopyright The Electric Controller and Manufacturing Company LLCPrinted in the USA

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

September 2008

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

copyCopyright The Electric Controller and Manufacturing Company LLC 2007

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

Page 5: Ac Crane Control

September 2008 FRONTLINE

DYNAMIC LOWERING ELE

FRONTLINEreg AC CRANE CONTROL

DYNAMIC LOWERING ELEMENTARY DIAGRAM

AC CRANE CONTROL

5

CLASS

MENTARY DIAGRAM

CLASS

FRONTLINE

6

CLASS

GENERAL

Class 6422 reversing CONTRA-TORQUEreg controllers are recommendedmechanical load brakes but with fixed overhauling loads such as bucket crane hoistoperated dc shunt brakes or solenoid operated ac brakes

The standard single motor reversing CONTRA-TORQUEcontroller consists of

1mdashTwo pole control molded case switch (CMCS)1mdashThree pole magnetic main line circuit breaker with padlock clip

(LCB)2mdashType M two-pole contactors with mechanical interlock for

hoisting and lowering circuits (H L)1mdashType M two-pole main contactor (M)5 or 6mdashType M two-pole acceleration contactors

(1A 2A 3A 4A 5A 6A)5 or 6mdashType SZF frequency relays

(3AR 4AR 5AR 6AR OS NH)1mdash460380230 to 255 volt fused control circuit transformer

(CTR)1mdashControl Circuit Rectifier (RECT)1mdashType KFO under voltage relay (UV)2mdashPneumatic timing relays for counter-torque and lowering

relays (CTR LR)1mdashPneumatic timing transition relay (TR)3mdashType AO magnetic inverse time overload relays

(1OslashL 2OslashL 3OslashL)1mdashSZF power loss protection relay circuits

(SPR 2RECT 2MOV 2RES)

Volts5060Hz

CraneRating

NEMAContactor

SizeMax

AmperesMaxHp

Primary Secondary

380

67 30 2 2133 60 3 3200 100 4 4400 150 5 5400 200 5 5

460

67 40 2 2133 80 3 3200 125 4 4400 200 5 5400 300 5 5

Select controller based on horsepower and rated primary and secondary current ForThese controllers have six speed points available but are used withdiamsThese controllers have seven speed points available but are used with 6point master switches the last acceleration point being rel

ORDERING INFORMATION REQUIRED See Page 23MODIFICATIONS See Page

CLASS

FRONTLINEreg AC CRANE CONTROL

CONTRA-TORQUEreg

GENERAL INFORMATIONHOIST SERVICE

controllers are recommended for use with ac wound rotor motors on crane hoistbut with fixed overhauling loads such as bucket crane hoists All controllers are arranged for use with rectifier

operated dc shunt brakes or solenoid operated ac brakes

TORQUEreg

ine circuit breaker with padlock clip

contactors with mechanical interlock for

volt fused control circuit transformer

and lowering

PROVIDES SLOW LOWERING SPEEDS FOROVERHAULING LOADS ONLY

MILL DUTY CLASS 8503 TYPE M CLAPPER TYPECONTACTORS

CLASS 8501 TYPE SZF STATIC ACCELERATION TIMERS

NoSpeedPoints

OpenType

General PurposeEnclosure NEMAType 1 Gasketed

Outdoor EnclosureNEMA Type 3R

Secondary

SINGLE MOTOR CONTROL

5 DOH72 DSH72 DWH725 EOH72 ESH72 EWH725 FOH72 FSH72 FWH725 GOH72 GSH72 GWH726diams GOH92 GSH92 GWH92

5 DOH72 DSH72 DWH725 EOH72 ESH72 EWH725 FOH72 FSH72 FWH725 GOH72 GSH72 GWH726diams GOH92 GSH92 GWH92

Select controller based on horsepower and rated primary and secondary current For explanation refer to Controller Ratings section ofcontrollers have six speed points available but are used with 5point master switches the last acceleration point being relay controlledcontrollers have seven speed points available but are used with 6point master switches the last acceleration point being relay controlled

See Page 23See Page 24

APPLICATION INFORMATIONDIMENSIONAL INFORMATION

September 2008

for use with ac wound rotor motors on crane hoists withoutarranged for use with rectifier

LOWERING SPEEDS FOR

MILL DUTY CLASS 8503 TYPE M CLAPPER TYPE

STATIC ACCELERATION TIMERS

Outdoor EnclosureDusttight

Enclosure NEMAType 12

DAH72EAH72FAH72GAH72GAH92

DAH72EAH72FAH72GAH72GAH92

Controller Ratings section of Application Data5point master switches the last acceleration point being relay controlled

ay controlled

APPLICATION INFORMATION See Pages 23-25DIMENSIONAL INFORMATION See Pages 10amp11

September 2008 FRONTLINE

CONTRA

FRONTLINEreg AC CRANE CONTROL

CONTRA-TORQUEreg ELEMENTARY DIAGRAM

AC CRANE CONTROL

7

CLASS

CLASS

FRONTLINE

8

CLASS

REVERSING PLUGGINGClass 6426 controllers are recommended for used withThe hoist controllers are of the reversing hoist type and are used on cranes with mechanical load brakes Thereversing plugging type Both the hoist and the travel controlleroperated ac brakes

The standard single motor reversing hoist controller consists of equipment for a reversing plugging controllerfor plugging (PR)

BRIDGE OR TROLLEY SE

The standard single motor reversing controller consists of

1mdashTwo pole control molded case switch (CMCS)1mdashThree pole magnetic main line circuit breaker with padlock clip

(LCB)2mdashType M two-pole contactors with mechanical interlock1mdashType M two-pole main contactor (M)4 or 5 or 6Type M two-pole acceleration contactors (including one

for plugging) (P 1A 2A 3A 4A 5A 6A)3 or 4 or 5Type ST1 static acceleration timers

(1AR 2AR 3AR 4AR 5AR)1mdashType SZF frequency relay for plugging (PR)1mdash460380230 to 255 volt fused control circuit transformer

(CTR)1mdashControl Circuit Rectifier (RECT)1mdashType KFO under voltage relay (UV)3mdashType AO magnetic inverse time overload relays

(1OslashL 2OslashL 3OslashL)

1mdashSZF power loss protection relay circuit(SPR 2RECT 2MOV 2RES)

The standard duplex reversing plugging controller consists of theequipment for a single motor controller with the exceptionfollowing equipment is added4 or 5mdashType M two-pole acceleration contactors

(2P 21A 22A 23A 24A)3mdashType AO magnetic inverse time overload relays

(4OslashL 5OslashL 6OslashL)

Volts5060Hz

CraneRating

NEMAContactor

Size

MaxAmperes

MaxHp

Primary Secondary

Primary Secondary

380

67 67 30 2 2133 133 60 3 3200 200 100 4 4400 400 150 5 5400 400 200 5 5

460

67 67 40 2 2133 133 80 3 3200 200 125 4 4400 400 200 5 5400 400 300 5 5

380

67 67 30 2 2133 133 60 3 2200 200 100 4 3400 400 150 5 4400 400 200 5 5

460

67 67 40 2 2133 67 80 3 2200 133 120 4 3400 200 200 5 4400 400 300 5 5

Select controller based on motor horsepower and rated primary and secondary current FordiamsPrice is for single motor reversing plugging or reversing hoist For reversing hoist change theThese controllers have 6 speed points available but are used with 5point master switches the last acceleration point beingThese controllers have seven speed points available but are used with 6point master swit

ORDERING INFORMATION REQUIRED See Page 23MODIFICATIONS See Page 24

CLASS

FRONTLINEreg AC CRANE CONTROL

REVERSING PLUGGING CONTROLfor used with ac wound rotor motor on hoist and travel drives of general-purpose

The hoist controllers are of the reversing hoist type and are used on cranes with mechanical load brakes The travel panels are of thecontrollers are arranged for use with rectifier operated dc shunt brakes or solenoid

HOIST SERVICEThe standard single motor reversing hoist controller consists of equipment for a reversing plugging controller but without

BRIDGE OR TROLLEY SERVICE

The standard single motor reversing controller consists of

Three pole magnetic main line circuit breaker with padlock clip

contactors with mechanical interlock (F R)

including one

volt fused control circuit transformer

rsing plugging controller consists of thefor a single motor controller with the exception that the

MILL DUTY CLASS 8503 TYPE M CLAPPER TYPECONTACTORS

CLASS 8501 TYPE SZF FREQUENCY ACCELERATIONRELAYS FOR PLUGGING

CLASS 7001 TYPE ST1 STATICACCELERATION TIMERS

NoSpeedPoints

OpenType

General PurposeEnclosure NEMAType 1 Gasketed

Outdoor EnclosureNEMA Type 3R

Secondary

SINGLE MOTOR CONTROL

5 DOR76 DSR76 DWR765 EOR76 ESR76 EWR765 FOR76 FSR76 FWR765 GOR76 GSR76 GWR766 GOR96 GSR96 GWR96

5 DOR76 DSR76 DWR765 EOR76 ESR76 EWR765 FOR76 FSR76 FWR765 GOR76 GSR76 GWR766 GOR96 GSR96 GWR96

DUPLEX MOTOR CONTROL5 DOR86 DSR86 DWR865 EOR86 ESR86 EWR865 FOR86 FSR86 FWR865 GOR86 GSR86 GWR865 GOR106 GSR106 GWR106

5 DOR86 DSR86 DWR865 EOR86 ESR86 EWR865 FOR86 FSR86 FWR865 GOR86 GSR86 GWR865 GOR106 GSR106 GWR106

Select controller based on motor horsepower and rated primary and secondary current For explanation refer to Controller Ratings section of Application DataPrice is for single motor reversing plugging or reversing hoist For reversing hoist change the R in the type to an H

These controllers have 6 speed points available but are used with 5point master switches the last acceleration point being relay controlledThese controllers have seven speed points available but are used with 6point master switches the last acceleration point being relay controlled

See Page 23See Page 24

APPLICATION INFORMATIONDIMENSIONAL INFORMATION

September 2008

purpose overhead cranespanels are of the

r operated dc shunt brakes or solenoid

out SZF frequency relay

MILL DUTY CLASS 8503 TYPE M CLAPPER TYPE

CLASS 8501 TYPE SZF FREQUENCY ACCELERATION

STATICACCELERATION TIMERS

DusttightEnclosure NEMA

Type 12

DAR76EAR76FAR76GAR76GAR96

DAR76EAR76FAR76GAR76GAR96

DAR86EAR86FAR86GAR86

GAR106

DAR86EAR86FAR86GAR86

GAR106Application Data

APPLICATION INFORMATION See Pages 23-25DIMENSIONAL INFORMATION See Pages 10amp11

September 2008 FRONTLINE

REVERSING PLUGGING E

FRONTLINEreg AC CRANE CONTROL

REVERSING PLUGGING ELEMENTARY DIAGRAM

AC CRANE CONTROL

9

CLASS

LEMENTARY DIAGRAM

CLASS

FRONTLINE

10

CLASS

CLASS

APPROXIMATE DIMENSIOSINGLE AND DUPLEX MOTOR CONTROL STANDA

OPEN TYPE

MAXIMUM HP

460V 380VHin

mm

HOISTClasses6420 amp6422

40 3048

1219

80 6048

1219

125 10048

1219200 150

NOT A300 200

HOISTClasses6421 amp6426

ampBridge orTrolleyClass6426

40 3048

1219

80 6048

1219

125 10048

1219

NOT A200 150

300 200

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMENSIONS AND WEIGHTSMOTOR CONTROL STANDARD CONTROLLERS

ENCLOSED TYPE

OPEN TYPE ENCLOSED TYPE

Win

mm

Cin

mm

NETWeightLbskg

Win

mm

Cin

mm

SINGLE MOTOR CONTROL69

175312305

52523848

121969

175369

175312305

70031848

121969

175369

175312305

70031848

121969

1753

NOT AVAILABLE IN STANDARD DIMENSIONS SEE NARROW WIDTH DIM

DUPLEX MOTOR CONTROL69

175312305

50022748

121969

175369

175312305

70031848

121969

175369

175312305

70031848

121969

1753

NOT AVAILABLE IN STANDARD DIMENSIONS SEE NARROW WIDTH DIM

September 2008

RD CONTROLLERS

ENCLOSED TYPE

ENCLOSED TYPE

Din

mm

NETWeightLbskg

15381

750341

15381

900409

15381

900409

SEE NARROW WIDTH DIMENSIONS

15381

700318

15381

900409

15381

900409

SEE NARROW WIDTH DIMENSIONS

September 2008 FRONTLINE

APPROXIMATESINGLE AND DUPLEX

OPEN TYPE

DRIVE

MAXIMUM HP

460V 380Vmm

HOIST(All Classes)and Bridge

Trolley

40 30

80 601727

125 1001727

200 1501981

300 2001981

CLASS 6426Bridge and

Trolleyonly

40 30

80 601727

125 1001727

200 150

300 200

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMENSIONS AND WEIGHTSAND DUPLEX MOTOR CONTROL NARROW WIDTH CONTR

ENCLOSED TYPE

OPEN TYPE

Hin

mm

Win

mm

Cin

mm

NETWeightLbskg

Hin

mm

SINGLE MOTOR CONTROL- - - - -

681727

631600

12305

70031868

172768

172763

160012305

70031868

172778

198177

195615381

130059078

198178

198177

195615381

130059078

1981DUPLEX MOTOR CONTROL

- - - - -68

172775

190512305

100045468

172768

172775

190512305

100045468

1727

NOT AVAILABLE IN STANDARD DIMENSIONS SEE NARROW WIDTH DIM

AC CRANE CONTROL

11

CLASS

CLASS6420642164226426CONTROLLERS

ENCLOSED TYPE

ENCLOSED TYPE

Win

mm

Din

mm

NETWeightLbskg

- -63

160015381

900409

631600

15381

900409

771956

17482

1800817

771956

17482

1800817

- -75

190515381

1400635

751905

15381

1400635

SEE NARROW WIDTH DIMENSIONS

FRONTLINE

12

CLASS

WITH SQUARE DGENERAL INFORMATION

Class 6435 controllers are recommended for used withThe hoist controllers are of the reversing dynamic lowering type whenhoist type when used on cranes with mechanical load brakestravel controls are designed for use with rectifier operated dc brakes or solenoid operated ac brakes

The standard single motor reversing hoist controller consists of equipment for afrequency relay plugging The standard single motor reversing dynamic lowering hoist controller consists of the equipment for a single motorreversing plugging controller with one additional type S three pole contactorprovided (CR) and a pneumatic timing delay is deleted (IA)NOTE DUPLEX CONTROLLERS ARE NOT AVAILABLE

The standard single motor reversing plugging controller consistsof

1mdashTwo pole control molded case switch (MCB)1mdashThree pole magnetic main line circuit breaker with padlock clip

(LCB)2mdashType S three-pole directional contactors with mechanical

interlock (F R)3mdashType S three-pole acceleration contactors (including one for

plugging) (1A 2A P)2mdashPneumatic timing acceleration units (1A 2A)1mdashType SZF frequency relay for plugging (PR)1mdash460230 to 115 volt fused control circuit transformer (1mdashControl Circuit Rectifier (RECT)1mdashUndervoltage relay (UV)3mdashMagnetic inverse time overload relays (1OslashL 2OslashL 3OslashL1mdashSZF power loss protection relay circuit (SPR 2RECT 2MOV2RES)

Volts5060Hz

CraneRating

ContactorMaxAmperes

MaxHp

Primary SecondaryREVERSING AC

38067 100 30133 199 60

46067 100 40133 199 80

38067 100 30133 199 60

46067 100 40133 199 80

REVESING PLUGGING BRIDGE OR TROLLEY CONTROL

38067 100 30133 199 60

46067 100 40133 199 80

Select controller based on horsepower and rated primary and secondary current For

ORDERING INFORMATION REQUIRED

1 Class2 Type3 Motor Horsepower

4 Motor Primary Rated Voltage and Current5 Motor Secondary Rated Voltage and Current6 Controller Modifications Specify Form Numbers

CLASS

FRONTLINEreg AC CRANE CONTROL

SQUARE D CLASS 8502 TYPE S CONTACTORSreg

GENERAL INFORMATIONHOIST SERVICE

controllers are recommended for used with ac wound rotor motor on hoist and travel drives of general-purposedynamic lowering type when used on cranes without mechanical load brakes and are of the reversing

hoist type when used on cranes with mechanical load brakes The travel controllers are of the reversing plugging type Both the hoist and thefor use with rectifier operated dc brakes or solenoid operated ac brakes

BRIDGE OR TROLLEYThe standard single motor reversing hoist controller consists of equipment for a single motor reversing plugging controller

The standard single motor reversing dynamic lowering hoist controller consists of the equipment for a single motorS three pole contactor provided for dynamic lowering (DB) one additional control relay

pneumatic timing delay is deleted (IA)NOTE DUPLEX CONTROLLERS ARE NOT AVAILABLE

controller consists

Three pole magnetic main line circuit breaker with padlock clip

contactors with mechanical

(including one for

5 volt fused control circuit transformer (CTR)

1OslashL 2OslashL 3OslashL)SZF power loss protection relay circuit (SPR 2RECT 2MOV and

CLASS 8502 TYPE S CONTACTORS PNEUMATOC TIMING ACCELERATION CLASS 8501 TYPE SZF FREQUENCY RELAY FOR

PLUGGING

NEMAContactor

Size

NoSpeedPoints

OpenType

General PurposeEnclosure NEMAType 1 Gasketed

REVERSING AC DYNAMIC LOWERING HOIST CONTROL2 4 DOH71 DSH713 4 EOH71 ESH712 4 DOH71 DSH713 4 EOH71 ESH71REVERSING HOIST CONTROL2 4 DOH76 DSH763 4 EOH76 ESH762 4 DOH76 DSH763 4 EOH76 ESH76

REVESING PLUGGING BRIDGE OR TROLLEY CONTROL2 4 DOR76 DSR763 4 EOR76 ESR762 4 DOR76 DSR763 4 EOR76 ESR76

Select controller based on horsepower and rated primary and secondary current For explanation refer to Controller Ratings section of

ORDERING INFORMATION REQUIRED

4 Motor Primary Rated Voltage and Current5 Motor Secondary Rated Voltage and Current6 Controller Modifications Specify Form Numbers

7 Resistors Services Classification8 Master Switch Type and Form Number

September 2008

purpose overhead cranesout mechanical load brakes and are of the reversing

versing plugging type Both the hoist and the

reversing plugging controller but without SZFThe standard single motor reversing dynamic lowering hoist controller consists of the equipment for a single motor

one additional control relay

LASS 8502 TYPE S CONTACTORSPNEUMATOC TIMING ACCELERATION

FREQUENCY RELAY FOR

Outdoor EnclosureNEMA Type 3R

DWH71EWH71DWH71EWH71

DWH76EWH76DWH76EWH76

DWR76EWR76DWR76EWR76

refer to Controller Ratings section of Application Data

7 Resistors Services Classification8 Master Switch Type and Form Number

September 2008 FRONTLINE

WITH CLASSTRAVEL CONTROL

FRONTLINEreg AC CRANE CONTROL

WITH CLASS SQUARE D 8502 TYPE S CONTACTOTRAVEL CONTROL ELEMENTARY DIAGRAM

AC CRANE CONTROL

13

CLASS

8502 TYPE S CONTACTORS

CLASS

FRONTLINE

14

CLASS

WITH CLASS SQUARE DREVERSING HOIST

CLASS

FRONTLINEreg AC CRANE CONTROL

SQUARE D 8502 TYPE S CONTACTORSREVERSING HOIST ELMENTARY DIAGRAM

September 2008

September 2008 FRONTLINE

WITH CLASS SQUARE DDYNAMIC LOWERING HOI

FRONTLINEreg AC CRANE CONTROL

WITH CLASS SQUARE D 8502 TYPE S CONTACTODYNAMIC LOWERING HOIST ELEMENTARY DIAGRAM

AC CRANE CONTROL

15

CLASS

8502 TYPE S CONTACTORSDIAGRAM

CLASS

FRONTLINE

16

CLASS

APPROXIMATE DIMENSIOCLASS 8502 TYPE S CO

OPEN TYPE

DriveMaximum

HP(Volts)

Open Type

Hin

mm

Win

mm

Hoist orTravel

20(380)

401016

24607

40(460)

401016

24607

40(380)

401016

30762

80(460)

401016

30762

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMENSIONS AND WEIGHTSCLASS 8502 TYPE S CONTACTORS

ENCLOSED TYPE

Open Type Enclosed Type

Cin

mm

NetWeightlbskg

Hin

mm

Win

mm

85216

1506842

106730762

85216

1506842

106730762

10254

2009142

106736914

10254

2009142

106736914

September 2008

ENCLOSED TYPE

Enclosed Type

Din

mm

NetWeightlbskg

15381

300136

15381

300136

15381

385175

15381

385175

September 2008 FRONTLINE

A set of TABWELDreg resistors are required forapplications

RESISTOR APPLICATION

For resistors mounted in racks unwired ndash refer to Class 6715

Class 151 and 152 is recommended for light crane duty

Class 161 and 162 is recommended for standard duty

Class 171 and172 is recommended for severe duty

For explanation of NEMA resistor classifications

CLASS 6715 RESISTORS

To order an AC acceleration resistor set for use with duplex Cpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V andat 67A

Controller Class EnclosureMotorRating

ControlScheme

Code Type Code Code

6420 A0None N

ldquoHrdquo(HP)

6421 A16422 A2

Open O6426 A6

Hoist6435

A7Nema

1G

ldquoKrdquo(kw)

Travel6435

A8Nema

3RW

CustomerDesign

A99NemaScreenCovers

C

NEMA ClassSpeed Points

System VoltageMotor Rated Voltage

Class 6715

Controller TypeEnclosure

Motor Power

Motor ConfigurationRotor Volts

Rotor Amps

FRONTLINEreg AC CRANE CONTROL

SELECTION AND APPLICATIONe required for each AC motor control The following table is for selecting resistor for all AC motor control

RESISTOR APPLICATION

refer to Class 6715

Class 151 and 152 is recommended for light crane duty

Class 161 and 162 is recommended for standard duty

Class 171 and172 is recommended for severe duty

For explanation of NEMA resistor classifications ndash refer to Class 6715

CLASS

CLASS 6715 RESISTORS SELECTION TABLE

EXAMPLE AC RESISTOR SETTo order an AC acceleration resistor set for use with duplex CONTRA-TORQUE hoist (2 motors in parallel) NEMA 161 duty cycle 5 speedpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V and

CLASS 6715 RESISTOR SELECTION TABLE

NEMA DUTYSpeedPoints

NO

SystemVoltage

MotorRated

Voltage

Class Code Code V Code V Code

151 A3 208 2 208 2152 B

161 C

162 D4 380 3 380 3171 E

172 F91 G

5460 4 460 4

92 H

CustomerDesign

CS 575 5 575 56

4 4A2 G 37K C 5Class 6715

AC CRANE CONTROL

17

CLASS

The following table is for selecting resistor for all AC motor control

6715

hoist (2 motors in parallel) NEMA 161 duty cycle 5 speedpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V and rotor amps

MotorConfiguration

Ro

tor

Ro

tor

Code Type Code

Simplex S

Vo

lts

Am

psDuplex D

Quadruplex Q

4 D 350V 67A

CLASS

FRONTLINE

18

CLASS

APPROXIMATE NUMBER OCLASS 6715 TABWELD R

This tabulation is based on ECampM resistor designs for use with Class 6420 6421 6422 6426 controllerstabulation is for typical drive loading and for motors with standard NEMA secondary values of voltage andconsult factory with actual motor data

Max HPRating Single

Motor

6420Hoist

161 171 152

5 2 2 1

7 12 2 2 1

10 2 2 1

15 2 3 2

20 3 3 2

25 2 3 2

30 3 3 2

40 3 4 2

50 4 6 2

60 4 6 3

75 6 12 4

100 7 9 4

125 8 12 6

150 12 15 6

200 12 18 9

250 12 21 9

This tabulation is based on ECampM resistor designs for use with Class 6435drive loading and for motors with standard NEMA secondary values of voltage and

MaximumHP

HoistDynamic Lowering

NEMA Class152 162

5 1 175 1 110 1 215 2 220 2 225 2 330 2 340 3 350 3 460 3 475 4 6

NEMA SERVICE CLASSIF

Standard 6435 controllers meet the requirements of NEMA Services Crequirements of NEMA service classifications I (CMAA Sspeed point modification Form M3

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE NUMBER OF SEPARATELY MOUNTED STANDARSCLASS 6715 TABWELD RESISTOR SECTIONS (265rdquo LONG)

resistor designs for use with Class 6420 6421 6422 6426 controllers and is for estimatetabulation is for typical drive loading and for motors with standard NEMA secondary values of voltage and current For act

6421Hoist

6422Hoist

162 172 161 171 152

1 1 2 2 1

1 2 2 2 1

2 2 3 3 1

2 2 3 4 2

2 2 4 5 2

2 3 4 6 2

2 3 5 7 2

2 3 6 7 3

2 4 7 9 3

3 4 8 9 3

4 6 9 13 4

5 7 12 18 4

6 9 14 21 7

6 9 18 30 9

9 12 24 36 9

12 15 30 42 12

r designs for use with Class 6435 controller and is for estimate only This tabulation is fordrive loading and for motors with standard NEMA secondary values of voltage and current For actual quantities consult factory

HoistReversing

TravelReverse Plugging

NEMA Class NEMA Class152 162 1521 1 11 1 11 1 11 2 11 2 22 3 22 3 33 3 33 4 33 4 44 6 4

NEMA SERVICE CLASSIFICATIONS

meet the requirements of NEMA Services Classification II (CMAA service classifications A2 and B) to meet theervice classifications I (CMAA Service Classifications A1 C D E and F) the controller must be priced with the 5

September 2008

STANDARS

estimate only Thiscurrent For actual quantities

6426Hoist Bridge or Trolley

162 172

1 1

1 1

1 2

2 2

2 2

2 3

3 3

3 4

4 4

4 4

4 5

6 9

9 9

9 12

12 15

15 18

This tabulation is for typicalFor actual quantities consult factory

TravelReverse Plugging

NEMA Class162

11222334456

lassification II (CMAA service classifications A2 and B) to meet theE and F) the controller must be priced with the 5th

September 2008 FRONTLINE

MASTER SWITCHES AND

Class 9004 Type VGMaster Switch

CLASS 9004 VM OR CM

Control Class Speed Points

6420556

642156

642256

6426556

Motion Speed PointsHoist

(Dynamic Lowering)45

Hoist(Reversing)

45

Travel(Reverse Plugging)

45

Refer to Class 9004 catalog for more information

FRONTLINEreg AC CRANE CONTROL

GENERAL INFORMATIONMASTER SWITCHES AND MODIFICATIONS

Class 9004 Type CGMaster Switch

CLASS 9004 VM OR CM NEMA 1 ENCLOSED

oints Form VM TYPE

C1VG9

VG12

B1VG12VG16

D1VG12VG16

A1VG9

VG12

CONTROL 6435Form MA VM

A2AG9 VG9AG9 VG9

A3AG6 VG6AG9 VG9

A3AG6 VG6AG9 VG9

Refer to Class 9004 catalog for more information

AC CRANE CONTROL

19

CLASS

Class 9004 Type CGMaster Switch

CM TYPE

CG12CG12CG12CM16CG12CG16

CG12CG12

VM CMVG9 CG8VG9 CG12VG6 CG6VG9 CG8VG6 CG6VG9 CG8

CLASS

FRONTLINE

20

CLASS

GENERALMANUAL MAGNETIC DISC

The manual magnetic disconnect switch is used for protecting electrical crane circuits exOHSA requirements for a crane disconnect switchThe standard disconnect switch consists of

3mdashClass 8503 Type M form Y781 (with silver faced power contacttips) SPNO contactors The contactors are mechanically tiedOne normally open and one normally closed electricalinterlocks are included for indicating lights

1mdashTwo pole control molded case switch with padlock clip (1mdash460380230 to 255 volt fused control circuit transformer (1mdashIntermediate relay (CR)1mdashClass 9999AI1 Arc Suppressor

Volts5060Hz

NEMAContactor

Size

MaxAmperes

380or

460

4 1505 3006 6008 1350

Form

F30A

3 Main Line Power FusesStart-Stop Push Button

X11Additional Control CircuitNC interlocks can be added

A3 ldquoOnOffrdquo PushbuttonP1 Red ldquoOnrdquo Pilot LightP2 Green ldquoOffrdquo Pilot LightT12 200VA Additional Transformer Capacity

Class L fuse mounting is standard Customer

PILOT DEVICESThe pilot devices should be selected so the current rating is adequate for controlling the disconnect switch For coil9998 Coil Data catalog sheets An arc inhibitor may be required depending upon the ra

DISCONNEWhen applied to cranes the continuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated currentrequired by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

ORDERING INFORMATION REQUIRED1 Class2 Type3 Voltage4 Controller Modifications Specify Form

CLASS

FRONTLINEreg AC CRANE CONTROL

GENERAL INFORMATIONMANUAL MAGNETIC DISCONNECTS SWITCHES

etic disconnect switch is used for protecting electrical crane circuits except lifting magnet circuits The disconnect meets

ype M form Y781 (with silver faced power contacttips) SPNO contactors The contactors are mechanically tiedOne normally open and one normally closed electrical

case switch with padlock clip (CMCS)volt fused control circuit transformer (CTR)

CAM OPERATOR PREVENTSFROM CLOSING WHEN HANDLE IS IN OFFPOSITION

CONTACTORS OPERATED REMOTELY OR BYHANDLE ON THE ENCLOSURE

Amperes

Enclosures

General PurposeNEMA Type 1 gasketed

Dusttight NEMA Type 12Outdoor NEMA Type 3R

MFS12 MFA12MGS12 MGA12MHS12 MHA12MKS12 MKA12

MODIFICATIONSDescription

Main Line Power FusesStop Push Button

Additional Control Circuit Interlocks A maximum of 4 NONC interlocks can be added

Offrdquo PushbuttonRed ldquoOnrdquo Pilot LightGreen ldquoOffrdquo Pilot Light200VA Additional Transformer Capacity

Class L fuse mounting is standard Customer is to supply fuse rating

PILOT DEVICES SELECTIONThe pilot devices should be selected so the current rating is adequate for controlling the disconnect switch For coil currents9998 Coil Data catalog sheets An arc inhibitor may be required depending upon the ratings of the pilot device

DISCONNECT SWITCH SELECTIONcontinuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated current

required by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

September 2008

t lifting magnet circuits The disconnect meets

AM OPERATOR PREVENTS CONTACTORFROM CLOSING WHEN HANDLE IS IN OFF

ORS OPERATED REMOTELY OR BYHANDLE ON THE ENCLOSURE

currents refer to Class

continuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated currentrequired by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

September 2008 FRONTLINE

MANUAL MAGNETIC DISC

FRONTLINEreg AC CRANE CONTROL

MANUAL MAGNETIC DISCONNECT ELEMENTARY DIAGRA

AC CRANE CONTROL

21

CLASS

AGRAM

CLASS

FRONTLINE

22

CLASS

APPROXIMATE DIMESION

NEMASize

ContinuousAmpereRating A B C D

4 15018457

5127

8203

19483

5 30014356

3589

45114

28711

6 60018457

5127

8203

19483

8 135014356

5127

8203

28712

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMESIONS AND WEIGHTS

D E F G H J K L M

19483

30762

36914

2864727

315800

33838

3589

16229

36914

28711

33838

36914

267678

345876

36914

7178

72183

36914

19483

421067

421067

322818

4351105

451143

3589

10483

421067

28712

57838

441118

363922

345864

36914

70178

59137

741275

September 2008

M N

NetWeight

36914

15381

21096

36914

20508

235107

421067

20508

285130

741275

28508

300138

September 2008 FRONTLINE

MULTIMOTOR DRIVESTwo motors connected in parallel (duplex)control primary equipment and two sets of motor controlsecondary equipment are required in the controller Two sets ofpower resistors are also required

Four motors connected in parallel (quadruplex)necessary to double the duplex controller price given for twomotors in parallel One set of motor control primary and four setsof motor control secondary equipment are required Four sets opower resistors are required

CONTROLLERSNarrow width controllers ndash Most controllers ara narrow width construction These controllers when compared tostandard controllers are reduced width and increased height Fordetails see controller modifications and controller dimension

CONTROLLER MODIFICAT

Form Description

D6 Motor Isolating Circuit Breakers

B5 Brake Relay Reverse Plugging Controller Only

Y17 Arc Inhibitors Pendant Operated Controller

G95 Miniature Voltmeter Panel Mounted

G91 Miniature Ammeter Panel Mounted

E18 Narrow Width Panel

M24Substitute Type SZF Frequency Relay For ST1 StaticAcceleration Timers

H18Cabinet Space Heater Controlled By Interlock From MContactor

For Duplex Controllers For Duplex controllers multiply price by 2

1 Class2 Type3 Motor Horsepower4 Motor Primary Rated Voltage and Current

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATA

MULTIMOTOR DRIVESTwo motors connected in parallel (duplex) ndash One set of motorcontrol primary equipment and two sets of motor controlsecondary equipment are required in the controller Two sets of

Four motors connected in parallel (quadruplex) ndash It islex controller price given for two

motors in parallel One set of motor control primary and four setsof motor control secondary equipment are required Four sets of

CONTROLLERSMost controllers are also available in

a narrow width construction These controllers when compared tostandard controllers are reduced width and increased height For

see controller modifications and controller dimension

CONTROLLER MStandard controllers come equipped with the components listedSpecial features to be added to standard controllers are identifiedby Form number Most modifications are self

FORM D6 list motor isolation circuit breakers for use on duplexcontrollers For operation of the drive on one motor the motorline and connect breakers will disconnect one motor from the lineand connect the frequency relays to the power resistors of theother motor The brakes of the motor not in service are stillreleased electrically

FORM G95 lists a 3 frac12rdquo square miniature voltmeter to monitor onephase of motor primary voltage

FORM G9 lists a 3 frac12rdquo square miniature ammeter to monitor onephase of motor primary current Current transformersform are supplied Form G9 for motors above 10 HP20 HP 460 volts

CONTROLLER MODIFICATIONS

Brake Relay Reverse Plugging Controller Only

Arc Inhibitors Pendant Operated Controller

Substitute Type SZF Frequency Relay For ST1 Static

Cabinet Space Heater Controlled By Interlock From M

APPLICATION DATACLASS 6420 EDDYMAG

DYNAMIC MODEL AB-

MOTOR HPRATING

Brake Size

900 RMP Motors

Light DutyServices

SevereDutyServices

7 12 703

10 704

15 704

20 705

25 705

30 705

40 706

50 706

60 706

75 707

100 707

125 707

150 707200 708250 708300 708

ORDERING INFORMATION REQUIRED

5 Motor Secondary Rated Voltage andCurrent6 Controller Modifications Specify FormNumbers

7 Resistors Services Classification8 Master Switch Type and Form Number

AC CRANE CONTROL

23

CLASS

CLASS

CONTROLLER MODIFICATIONSStandard controllers come equipped with the components listedSpecial features to be added to standard controllers are identifiedby Form number Most modifications are self explanatory

list motor isolation circuit breakers for use on duplexcontrollers For operation of the drive on one motor the motorline and connect breakers will disconnect one motor from the lineand connect the frequency relays to the power resistors of the

motor The brakes of the motor not in service are still

lists a 3 frac12rdquo square miniature voltmeter to monitor one

lists a 3 frac12rdquo square miniature ammeter to monitor oneCurrent transformers with this

for motors above 10 HP 230 volt and

PPLICATION DATACLASS 6420 EDDYMAG HOIST

-FLOOR MOUNTED BRAKE

1200 RMP MotorsSevereDutyServices

Light DutyServices

SevereDutyServices

704 703 703

704 703 704

705 704 704

705 704 705

705 705 705

706 705 705

706 705 706

706 706 706

707 706 706

707 706 706

707 707 707

707 707 707

708 707 707708 707 708708 708 708--- 708 708

7 Resistors Services Classification8 Master Switch Type and Form Number

FRONTLINE

24

CLASS

CLASS

CRANE HOOK SPEED VS

CLASS 6421DYNAMIC LO

FIRST

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

O

FSY

NC

HR

ON

OU

SSP

EED

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

SY

NC

HR

ON

OU

SSP

PED

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATACRANE HOOK SPEED VS LOAD PERFORMANCE

CLASS 6420 EDDYMAGreg

CLASS 6421DYNAMIC LOWERING HOIST

FIRST

SECOND

THIRD

FOURTH

FIFTH

FIRST

SECOND

THIRD

FOURTH

FIFTH

40 60 80 100 120 140 160 180

LOAD PERFORMANCE IN OF SYNCHRONOUS SPEED

SECOND

THIRDFOURTH

FIFTH

FIRST

FIRST

SECOND amp THIRD

40 60 80 100 120 140 160 180

LOAD PERFORMANCE IN OF SYNCHRONOUS SPEED

September 2008

200

FIFTH

180 200

September 2008 FRONTLINE

CRANE HOOK SPEEDCLASS 6422 CONTRA

CLASS 6426

SECONDFIRST

FOURTH

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

O

FSY

NC

HR

ON

OU

SSP

EED

FIRST

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

SY

NC

HR

ON

OU

SSP

EED

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATACRANE HOOK SPEED VS LOAD PERFORMANCE

CLASS 6422 CONTRA-TORQUEreg

CLASS 6426 REVERSING HOIST CONTROL(With Mechanical Load Brake)

FIFTH

AUTOMATIC

FOURTH

THIRD

FIRST amp SECOND

SECOND

THIRD

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUS SPEED

SIXTH

SECOND

THIRD

FOURTH

FIFTH

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUSE SPEED

25

CLASS

CLASS

FIFTH

AUTOMATIC

FIRST amp SECOND

180 200

180 200

FRONTLINE

26

CLASS

AC CONTACTOR CONTROL

System AC Contactor Control

Crane Components

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switchradio controlReversing hoistsmechanical load brake gearboxAll other hoist stylesgearbox Best and critical positioning controlrequires E

ResistorsAcceleration resistor setSize based on HP amp duty cycle

Mo

tor

Perf

orm

an

ce

General

Velocity and acceleration is load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

More abrupt speed point

Slowdown

Travel Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

Hoist OFF point slowdown and braking withEddy-Current brakeDB circuitry

OFF Point

Travel No OFF point braking via control

Hoist OFF point braking by Eddybrake CONTRA

Reversing

Travel Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allowsoperation

Hoist Drive is stopped before each changein direction

Power ConsumptionPower dissipated in rotor resistors inspeed points

Component Wear

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Motors Encoders

Requires wound rotor motorNo encoder feedback

Motor blower not typically requiredoperation at reduced motor velocity as fulltorque is not available at zero speed

FRONTLINEreg AC CRANE CONTROL

AC CONTACTOR CONTROL vs DRIVES

AC Contactor Control Variable Frequency Drive

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switch and pendant orradio controlReversing hoists require worm gear ormechanical load brake gearbox

hoist styles require standardgearbox Best and critical positioning control

es Eddy-Current load brake

Inverter-duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limitpendant or radio controlOpen loop hoist controls require worm gear ormechanical load brake gearboxClosed loop hoist controlswith motor encoder feedback

Acceleration resistor set requiredSize based on HP amp duty cycle

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration is load dependantVelocity and acceleration are minimally (open(closed loop) load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

More abrupt speed point transitions Smooth speed point transitions

Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

OFF point slowdown and braking withurrent brake CONTRA-TORQUEreg or

DB circuitry

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

No OFF point braking via control

OFF point braking by Eddy-CurrentCONTRA-TORQUEreg or DB circuitry

OFF point Dynamic Braking (DB)deceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allows reacceleration after relayoperation

Drive is stopped before each changein direction

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speedachieved

Power dissipated in rotor resistors in lowspeed points

Uses less power at reduced velocity and duringacceleration

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Power contactors eliminatedMotor current switched by solidSpare drive recommended

Requires wound rotor motorNo encoder feedback required

Inverter-duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Motor blower not typically required foroperation at reduced motor velocity as fulltorque is not available at zero speed

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and highduty cycles

September 2008

Frequency Drive

duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limit switches master switch

require worm gear ormechanical load brake gearbox

require standard gearbox butwith motor encoder feedback

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration are minimally (open loop) or not(closed loop) load dependant

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

Smooth speed point transitions

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

OFF point Dynamic Braking (DB) with programmabledeceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speed

Uses less power at reduced velocity and during

Power contactors eliminatedMotor current switched by solid-state componentsSpare drive recommended

duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and high

September 2008 FRONTLINE

CLASS 5010 WB DRUM BRAKES

AIST rated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Hold drive stationary when motor is off

Available in 8rdquo to 30rdquo wheel diameters

Torque ratings 100 through 9000 ft-lbs

Corrosion resistant pins are standard on all brake sizes

Grease fittings are standard on 19rdquo 23rdquo and 30rdquo brake sizes

Available with optional self-adjuster

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

AIST rated and suitable for all crane classes

Used on bridge and trolley (horizontal travel) drives

Provide fixed holding torque for parking

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000

Stopping torque ratings up to 300 850 and 1500

Available for AC or DC control systems

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL(Contactor) CONTROLS

Hoist drive styles include Eddy-Current Brakeand Reversing Hoist controls

Reversing Plugging control for bridge and trolley (travel) drives

Meets NEMA Service Classification I

Available in NEMA contactor sizes 2 through 6

Numerous modifications available

Uses Class 8503 Type M Line-ARCreg contactors static timers

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

Meet OSHAamp NEC requirements for AC

Available in continuous ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by

Mechanical amp electrical interlocks prevent switch

CLASS 6170 YOUNGSTOWNreg

HOIST POWER LIMIT SWITCHES

Final safety limits for hoist upper travel

Interrupts motor power directly

Available in ratings up to 500HP at 230VDC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER

FRONTLINEreg AC CRANE CONTROL

ated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Corrosion resistant pins are standard on all brake sizes

andard on 19rdquo 23rdquo and 30rdquo brake sizes

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

ated and suitable for all crane classes

travel) drives

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000 ft-lbs respectively

Stopping torque ratings up to 300 850 and 1500 ft-lbs respectively

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL

Current Brake CONTRA-TORQUEreg AC Dynamic Lowering

bridge and trolley (travel) drives

Available in NEMA contactor sizes 2 through 6 through 300HP for single or multiple motors

contactors static timers and frequency relays for acceleration

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

crane disconnect switch

ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by the enclosure handle

Mechanical amp electrical interlocks prevent switch operation with handle in the OFF position

HOIST POWER LIMIT SWITCHES

to 500HP at 230VDC or up to 400HP at 460VAC and 550VAC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on-line at wwwECandMnet

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER MILL DUTY CONTROL COMPONENTS27

CLASS

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

FRONTLINE

28

CLASS

FRONTLINEreg AC CRANE CONTROL

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

copyCopyright The Electric Controller and Manufacturing Company LLCPrinted in the USA

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

September 2008

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

copyCopyright The Electric Controller and Manufacturing Company LLC 2007

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

Page 6: Ac Crane Control

FRONTLINE

6

CLASS

GENERAL

Class 6422 reversing CONTRA-TORQUEreg controllers are recommendedmechanical load brakes but with fixed overhauling loads such as bucket crane hoistoperated dc shunt brakes or solenoid operated ac brakes

The standard single motor reversing CONTRA-TORQUEcontroller consists of

1mdashTwo pole control molded case switch (CMCS)1mdashThree pole magnetic main line circuit breaker with padlock clip

(LCB)2mdashType M two-pole contactors with mechanical interlock for

hoisting and lowering circuits (H L)1mdashType M two-pole main contactor (M)5 or 6mdashType M two-pole acceleration contactors

(1A 2A 3A 4A 5A 6A)5 or 6mdashType SZF frequency relays

(3AR 4AR 5AR 6AR OS NH)1mdash460380230 to 255 volt fused control circuit transformer

(CTR)1mdashControl Circuit Rectifier (RECT)1mdashType KFO under voltage relay (UV)2mdashPneumatic timing relays for counter-torque and lowering

relays (CTR LR)1mdashPneumatic timing transition relay (TR)3mdashType AO magnetic inverse time overload relays

(1OslashL 2OslashL 3OslashL)1mdashSZF power loss protection relay circuits

(SPR 2RECT 2MOV 2RES)

Volts5060Hz

CraneRating

NEMAContactor

SizeMax

AmperesMaxHp

Primary Secondary

380

67 30 2 2133 60 3 3200 100 4 4400 150 5 5400 200 5 5

460

67 40 2 2133 80 3 3200 125 4 4400 200 5 5400 300 5 5

Select controller based on horsepower and rated primary and secondary current ForThese controllers have six speed points available but are used withdiamsThese controllers have seven speed points available but are used with 6point master switches the last acceleration point being rel

ORDERING INFORMATION REQUIRED See Page 23MODIFICATIONS See Page

CLASS

FRONTLINEreg AC CRANE CONTROL

CONTRA-TORQUEreg

GENERAL INFORMATIONHOIST SERVICE

controllers are recommended for use with ac wound rotor motors on crane hoistbut with fixed overhauling loads such as bucket crane hoists All controllers are arranged for use with rectifier

operated dc shunt brakes or solenoid operated ac brakes

TORQUEreg

ine circuit breaker with padlock clip

contactors with mechanical interlock for

volt fused control circuit transformer

and lowering

PROVIDES SLOW LOWERING SPEEDS FOROVERHAULING LOADS ONLY

MILL DUTY CLASS 8503 TYPE M CLAPPER TYPECONTACTORS

CLASS 8501 TYPE SZF STATIC ACCELERATION TIMERS

NoSpeedPoints

OpenType

General PurposeEnclosure NEMAType 1 Gasketed

Outdoor EnclosureNEMA Type 3R

Secondary

SINGLE MOTOR CONTROL

5 DOH72 DSH72 DWH725 EOH72 ESH72 EWH725 FOH72 FSH72 FWH725 GOH72 GSH72 GWH726diams GOH92 GSH92 GWH92

5 DOH72 DSH72 DWH725 EOH72 ESH72 EWH725 FOH72 FSH72 FWH725 GOH72 GSH72 GWH726diams GOH92 GSH92 GWH92

Select controller based on horsepower and rated primary and secondary current For explanation refer to Controller Ratings section ofcontrollers have six speed points available but are used with 5point master switches the last acceleration point being relay controlledcontrollers have seven speed points available but are used with 6point master switches the last acceleration point being relay controlled

See Page 23See Page 24

APPLICATION INFORMATIONDIMENSIONAL INFORMATION

September 2008

for use with ac wound rotor motors on crane hoists withoutarranged for use with rectifier

LOWERING SPEEDS FOR

MILL DUTY CLASS 8503 TYPE M CLAPPER TYPE

STATIC ACCELERATION TIMERS

Outdoor EnclosureDusttight

Enclosure NEMAType 12

DAH72EAH72FAH72GAH72GAH92

DAH72EAH72FAH72GAH72GAH92

Controller Ratings section of Application Data5point master switches the last acceleration point being relay controlled

ay controlled

APPLICATION INFORMATION See Pages 23-25DIMENSIONAL INFORMATION See Pages 10amp11

September 2008 FRONTLINE

CONTRA

FRONTLINEreg AC CRANE CONTROL

CONTRA-TORQUEreg ELEMENTARY DIAGRAM

AC CRANE CONTROL

7

CLASS

CLASS

FRONTLINE

8

CLASS

REVERSING PLUGGINGClass 6426 controllers are recommended for used withThe hoist controllers are of the reversing hoist type and are used on cranes with mechanical load brakes Thereversing plugging type Both the hoist and the travel controlleroperated ac brakes

The standard single motor reversing hoist controller consists of equipment for a reversing plugging controllerfor plugging (PR)

BRIDGE OR TROLLEY SE

The standard single motor reversing controller consists of

1mdashTwo pole control molded case switch (CMCS)1mdashThree pole magnetic main line circuit breaker with padlock clip

(LCB)2mdashType M two-pole contactors with mechanical interlock1mdashType M two-pole main contactor (M)4 or 5 or 6Type M two-pole acceleration contactors (including one

for plugging) (P 1A 2A 3A 4A 5A 6A)3 or 4 or 5Type ST1 static acceleration timers

(1AR 2AR 3AR 4AR 5AR)1mdashType SZF frequency relay for plugging (PR)1mdash460380230 to 255 volt fused control circuit transformer

(CTR)1mdashControl Circuit Rectifier (RECT)1mdashType KFO under voltage relay (UV)3mdashType AO magnetic inverse time overload relays

(1OslashL 2OslashL 3OslashL)

1mdashSZF power loss protection relay circuit(SPR 2RECT 2MOV 2RES)

The standard duplex reversing plugging controller consists of theequipment for a single motor controller with the exceptionfollowing equipment is added4 or 5mdashType M two-pole acceleration contactors

(2P 21A 22A 23A 24A)3mdashType AO magnetic inverse time overload relays

(4OslashL 5OslashL 6OslashL)

Volts5060Hz

CraneRating

NEMAContactor

Size

MaxAmperes

MaxHp

Primary Secondary

Primary Secondary

380

67 67 30 2 2133 133 60 3 3200 200 100 4 4400 400 150 5 5400 400 200 5 5

460

67 67 40 2 2133 133 80 3 3200 200 125 4 4400 400 200 5 5400 400 300 5 5

380

67 67 30 2 2133 133 60 3 2200 200 100 4 3400 400 150 5 4400 400 200 5 5

460

67 67 40 2 2133 67 80 3 2200 133 120 4 3400 200 200 5 4400 400 300 5 5

Select controller based on motor horsepower and rated primary and secondary current FordiamsPrice is for single motor reversing plugging or reversing hoist For reversing hoist change theThese controllers have 6 speed points available but are used with 5point master switches the last acceleration point beingThese controllers have seven speed points available but are used with 6point master swit

ORDERING INFORMATION REQUIRED See Page 23MODIFICATIONS See Page 24

CLASS

FRONTLINEreg AC CRANE CONTROL

REVERSING PLUGGING CONTROLfor used with ac wound rotor motor on hoist and travel drives of general-purpose

The hoist controllers are of the reversing hoist type and are used on cranes with mechanical load brakes The travel panels are of thecontrollers are arranged for use with rectifier operated dc shunt brakes or solenoid

HOIST SERVICEThe standard single motor reversing hoist controller consists of equipment for a reversing plugging controller but without

BRIDGE OR TROLLEY SERVICE

The standard single motor reversing controller consists of

Three pole magnetic main line circuit breaker with padlock clip

contactors with mechanical interlock (F R)

including one

volt fused control circuit transformer

rsing plugging controller consists of thefor a single motor controller with the exception that the

MILL DUTY CLASS 8503 TYPE M CLAPPER TYPECONTACTORS

CLASS 8501 TYPE SZF FREQUENCY ACCELERATIONRELAYS FOR PLUGGING

CLASS 7001 TYPE ST1 STATICACCELERATION TIMERS

NoSpeedPoints

OpenType

General PurposeEnclosure NEMAType 1 Gasketed

Outdoor EnclosureNEMA Type 3R

Secondary

SINGLE MOTOR CONTROL

5 DOR76 DSR76 DWR765 EOR76 ESR76 EWR765 FOR76 FSR76 FWR765 GOR76 GSR76 GWR766 GOR96 GSR96 GWR96

5 DOR76 DSR76 DWR765 EOR76 ESR76 EWR765 FOR76 FSR76 FWR765 GOR76 GSR76 GWR766 GOR96 GSR96 GWR96

DUPLEX MOTOR CONTROL5 DOR86 DSR86 DWR865 EOR86 ESR86 EWR865 FOR86 FSR86 FWR865 GOR86 GSR86 GWR865 GOR106 GSR106 GWR106

5 DOR86 DSR86 DWR865 EOR86 ESR86 EWR865 FOR86 FSR86 FWR865 GOR86 GSR86 GWR865 GOR106 GSR106 GWR106

Select controller based on motor horsepower and rated primary and secondary current For explanation refer to Controller Ratings section of Application DataPrice is for single motor reversing plugging or reversing hoist For reversing hoist change the R in the type to an H

These controllers have 6 speed points available but are used with 5point master switches the last acceleration point being relay controlledThese controllers have seven speed points available but are used with 6point master switches the last acceleration point being relay controlled

See Page 23See Page 24

APPLICATION INFORMATIONDIMENSIONAL INFORMATION

September 2008

purpose overhead cranespanels are of the

r operated dc shunt brakes or solenoid

out SZF frequency relay

MILL DUTY CLASS 8503 TYPE M CLAPPER TYPE

CLASS 8501 TYPE SZF FREQUENCY ACCELERATION

STATICACCELERATION TIMERS

DusttightEnclosure NEMA

Type 12

DAR76EAR76FAR76GAR76GAR96

DAR76EAR76FAR76GAR76GAR96

DAR86EAR86FAR86GAR86

GAR106

DAR86EAR86FAR86GAR86

GAR106Application Data

APPLICATION INFORMATION See Pages 23-25DIMENSIONAL INFORMATION See Pages 10amp11

September 2008 FRONTLINE

REVERSING PLUGGING E

FRONTLINEreg AC CRANE CONTROL

REVERSING PLUGGING ELEMENTARY DIAGRAM

AC CRANE CONTROL

9

CLASS

LEMENTARY DIAGRAM

CLASS

FRONTLINE

10

CLASS

CLASS

APPROXIMATE DIMENSIOSINGLE AND DUPLEX MOTOR CONTROL STANDA

OPEN TYPE

MAXIMUM HP

460V 380VHin

mm

HOISTClasses6420 amp6422

40 3048

1219

80 6048

1219

125 10048

1219200 150

NOT A300 200

HOISTClasses6421 amp6426

ampBridge orTrolleyClass6426

40 3048

1219

80 6048

1219

125 10048

1219

NOT A200 150

300 200

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMENSIONS AND WEIGHTSMOTOR CONTROL STANDARD CONTROLLERS

ENCLOSED TYPE

OPEN TYPE ENCLOSED TYPE

Win

mm

Cin

mm

NETWeightLbskg

Win

mm

Cin

mm

SINGLE MOTOR CONTROL69

175312305

52523848

121969

175369

175312305

70031848

121969

175369

175312305

70031848

121969

1753

NOT AVAILABLE IN STANDARD DIMENSIONS SEE NARROW WIDTH DIM

DUPLEX MOTOR CONTROL69

175312305

50022748

121969

175369

175312305

70031848

121969

175369

175312305

70031848

121969

1753

NOT AVAILABLE IN STANDARD DIMENSIONS SEE NARROW WIDTH DIM

September 2008

RD CONTROLLERS

ENCLOSED TYPE

ENCLOSED TYPE

Din

mm

NETWeightLbskg

15381

750341

15381

900409

15381

900409

SEE NARROW WIDTH DIMENSIONS

15381

700318

15381

900409

15381

900409

SEE NARROW WIDTH DIMENSIONS

September 2008 FRONTLINE

APPROXIMATESINGLE AND DUPLEX

OPEN TYPE

DRIVE

MAXIMUM HP

460V 380Vmm

HOIST(All Classes)and Bridge

Trolley

40 30

80 601727

125 1001727

200 1501981

300 2001981

CLASS 6426Bridge and

Trolleyonly

40 30

80 601727

125 1001727

200 150

300 200

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMENSIONS AND WEIGHTSAND DUPLEX MOTOR CONTROL NARROW WIDTH CONTR

ENCLOSED TYPE

OPEN TYPE

Hin

mm

Win

mm

Cin

mm

NETWeightLbskg

Hin

mm

SINGLE MOTOR CONTROL- - - - -

681727

631600

12305

70031868

172768

172763

160012305

70031868

172778

198177

195615381

130059078

198178

198177

195615381

130059078

1981DUPLEX MOTOR CONTROL

- - - - -68

172775

190512305

100045468

172768

172775

190512305

100045468

1727

NOT AVAILABLE IN STANDARD DIMENSIONS SEE NARROW WIDTH DIM

AC CRANE CONTROL

11

CLASS

CLASS6420642164226426CONTROLLERS

ENCLOSED TYPE

ENCLOSED TYPE

Win

mm

Din

mm

NETWeightLbskg

- -63

160015381

900409

631600

15381

900409

771956

17482

1800817

771956

17482

1800817

- -75

190515381

1400635

751905

15381

1400635

SEE NARROW WIDTH DIMENSIONS

FRONTLINE

12

CLASS

WITH SQUARE DGENERAL INFORMATION

Class 6435 controllers are recommended for used withThe hoist controllers are of the reversing dynamic lowering type whenhoist type when used on cranes with mechanical load brakestravel controls are designed for use with rectifier operated dc brakes or solenoid operated ac brakes

The standard single motor reversing hoist controller consists of equipment for afrequency relay plugging The standard single motor reversing dynamic lowering hoist controller consists of the equipment for a single motorreversing plugging controller with one additional type S three pole contactorprovided (CR) and a pneumatic timing delay is deleted (IA)NOTE DUPLEX CONTROLLERS ARE NOT AVAILABLE

The standard single motor reversing plugging controller consistsof

1mdashTwo pole control molded case switch (MCB)1mdashThree pole magnetic main line circuit breaker with padlock clip

(LCB)2mdashType S three-pole directional contactors with mechanical

interlock (F R)3mdashType S three-pole acceleration contactors (including one for

plugging) (1A 2A P)2mdashPneumatic timing acceleration units (1A 2A)1mdashType SZF frequency relay for plugging (PR)1mdash460230 to 115 volt fused control circuit transformer (1mdashControl Circuit Rectifier (RECT)1mdashUndervoltage relay (UV)3mdashMagnetic inverse time overload relays (1OslashL 2OslashL 3OslashL1mdashSZF power loss protection relay circuit (SPR 2RECT 2MOV2RES)

Volts5060Hz

CraneRating

ContactorMaxAmperes

MaxHp

Primary SecondaryREVERSING AC

38067 100 30133 199 60

46067 100 40133 199 80

38067 100 30133 199 60

46067 100 40133 199 80

REVESING PLUGGING BRIDGE OR TROLLEY CONTROL

38067 100 30133 199 60

46067 100 40133 199 80

Select controller based on horsepower and rated primary and secondary current For

ORDERING INFORMATION REQUIRED

1 Class2 Type3 Motor Horsepower

4 Motor Primary Rated Voltage and Current5 Motor Secondary Rated Voltage and Current6 Controller Modifications Specify Form Numbers

CLASS

FRONTLINEreg AC CRANE CONTROL

SQUARE D CLASS 8502 TYPE S CONTACTORSreg

GENERAL INFORMATIONHOIST SERVICE

controllers are recommended for used with ac wound rotor motor on hoist and travel drives of general-purposedynamic lowering type when used on cranes without mechanical load brakes and are of the reversing

hoist type when used on cranes with mechanical load brakes The travel controllers are of the reversing plugging type Both the hoist and thefor use with rectifier operated dc brakes or solenoid operated ac brakes

BRIDGE OR TROLLEYThe standard single motor reversing hoist controller consists of equipment for a single motor reversing plugging controller

The standard single motor reversing dynamic lowering hoist controller consists of the equipment for a single motorS three pole contactor provided for dynamic lowering (DB) one additional control relay

pneumatic timing delay is deleted (IA)NOTE DUPLEX CONTROLLERS ARE NOT AVAILABLE

controller consists

Three pole magnetic main line circuit breaker with padlock clip

contactors with mechanical

(including one for

5 volt fused control circuit transformer (CTR)

1OslashL 2OslashL 3OslashL)SZF power loss protection relay circuit (SPR 2RECT 2MOV and

CLASS 8502 TYPE S CONTACTORS PNEUMATOC TIMING ACCELERATION CLASS 8501 TYPE SZF FREQUENCY RELAY FOR

PLUGGING

NEMAContactor

Size

NoSpeedPoints

OpenType

General PurposeEnclosure NEMAType 1 Gasketed

REVERSING AC DYNAMIC LOWERING HOIST CONTROL2 4 DOH71 DSH713 4 EOH71 ESH712 4 DOH71 DSH713 4 EOH71 ESH71REVERSING HOIST CONTROL2 4 DOH76 DSH763 4 EOH76 ESH762 4 DOH76 DSH763 4 EOH76 ESH76

REVESING PLUGGING BRIDGE OR TROLLEY CONTROL2 4 DOR76 DSR763 4 EOR76 ESR762 4 DOR76 DSR763 4 EOR76 ESR76

Select controller based on horsepower and rated primary and secondary current For explanation refer to Controller Ratings section of

ORDERING INFORMATION REQUIRED

4 Motor Primary Rated Voltage and Current5 Motor Secondary Rated Voltage and Current6 Controller Modifications Specify Form Numbers

7 Resistors Services Classification8 Master Switch Type and Form Number

September 2008

purpose overhead cranesout mechanical load brakes and are of the reversing

versing plugging type Both the hoist and the

reversing plugging controller but without SZFThe standard single motor reversing dynamic lowering hoist controller consists of the equipment for a single motor

one additional control relay

LASS 8502 TYPE S CONTACTORSPNEUMATOC TIMING ACCELERATION

FREQUENCY RELAY FOR

Outdoor EnclosureNEMA Type 3R

DWH71EWH71DWH71EWH71

DWH76EWH76DWH76EWH76

DWR76EWR76DWR76EWR76

refer to Controller Ratings section of Application Data

7 Resistors Services Classification8 Master Switch Type and Form Number

September 2008 FRONTLINE

WITH CLASSTRAVEL CONTROL

FRONTLINEreg AC CRANE CONTROL

WITH CLASS SQUARE D 8502 TYPE S CONTACTOTRAVEL CONTROL ELEMENTARY DIAGRAM

AC CRANE CONTROL

13

CLASS

8502 TYPE S CONTACTORS

CLASS

FRONTLINE

14

CLASS

WITH CLASS SQUARE DREVERSING HOIST

CLASS

FRONTLINEreg AC CRANE CONTROL

SQUARE D 8502 TYPE S CONTACTORSREVERSING HOIST ELMENTARY DIAGRAM

September 2008

September 2008 FRONTLINE

WITH CLASS SQUARE DDYNAMIC LOWERING HOI

FRONTLINEreg AC CRANE CONTROL

WITH CLASS SQUARE D 8502 TYPE S CONTACTODYNAMIC LOWERING HOIST ELEMENTARY DIAGRAM

AC CRANE CONTROL

15

CLASS

8502 TYPE S CONTACTORSDIAGRAM

CLASS

FRONTLINE

16

CLASS

APPROXIMATE DIMENSIOCLASS 8502 TYPE S CO

OPEN TYPE

DriveMaximum

HP(Volts)

Open Type

Hin

mm

Win

mm

Hoist orTravel

20(380)

401016

24607

40(460)

401016

24607

40(380)

401016

30762

80(460)

401016

30762

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMENSIONS AND WEIGHTSCLASS 8502 TYPE S CONTACTORS

ENCLOSED TYPE

Open Type Enclosed Type

Cin

mm

NetWeightlbskg

Hin

mm

Win

mm

85216

1506842

106730762

85216

1506842

106730762

10254

2009142

106736914

10254

2009142

106736914

September 2008

ENCLOSED TYPE

Enclosed Type

Din

mm

NetWeightlbskg

15381

300136

15381

300136

15381

385175

15381

385175

September 2008 FRONTLINE

A set of TABWELDreg resistors are required forapplications

RESISTOR APPLICATION

For resistors mounted in racks unwired ndash refer to Class 6715

Class 151 and 152 is recommended for light crane duty

Class 161 and 162 is recommended for standard duty

Class 171 and172 is recommended for severe duty

For explanation of NEMA resistor classifications

CLASS 6715 RESISTORS

To order an AC acceleration resistor set for use with duplex Cpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V andat 67A

Controller Class EnclosureMotorRating

ControlScheme

Code Type Code Code

6420 A0None N

ldquoHrdquo(HP)

6421 A16422 A2

Open O6426 A6

Hoist6435

A7Nema

1G

ldquoKrdquo(kw)

Travel6435

A8Nema

3RW

CustomerDesign

A99NemaScreenCovers

C

NEMA ClassSpeed Points

System VoltageMotor Rated Voltage

Class 6715

Controller TypeEnclosure

Motor Power

Motor ConfigurationRotor Volts

Rotor Amps

FRONTLINEreg AC CRANE CONTROL

SELECTION AND APPLICATIONe required for each AC motor control The following table is for selecting resistor for all AC motor control

RESISTOR APPLICATION

refer to Class 6715

Class 151 and 152 is recommended for light crane duty

Class 161 and 162 is recommended for standard duty

Class 171 and172 is recommended for severe duty

For explanation of NEMA resistor classifications ndash refer to Class 6715

CLASS

CLASS 6715 RESISTORS SELECTION TABLE

EXAMPLE AC RESISTOR SETTo order an AC acceleration resistor set for use with duplex CONTRA-TORQUE hoist (2 motors in parallel) NEMA 161 duty cycle 5 speedpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V and

CLASS 6715 RESISTOR SELECTION TABLE

NEMA DUTYSpeedPoints

NO

SystemVoltage

MotorRated

Voltage

Class Code Code V Code V Code

151 A3 208 2 208 2152 B

161 C

162 D4 380 3 380 3171 E

172 F91 G

5460 4 460 4

92 H

CustomerDesign

CS 575 5 575 56

4 4A2 G 37K C 5Class 6715

AC CRANE CONTROL

17

CLASS

The following table is for selecting resistor for all AC motor control

6715

hoist (2 motors in parallel) NEMA 161 duty cycle 5 speedpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V and rotor amps

MotorConfiguration

Ro

tor

Ro

tor

Code Type Code

Simplex S

Vo

lts

Am

psDuplex D

Quadruplex Q

4 D 350V 67A

CLASS

FRONTLINE

18

CLASS

APPROXIMATE NUMBER OCLASS 6715 TABWELD R

This tabulation is based on ECampM resistor designs for use with Class 6420 6421 6422 6426 controllerstabulation is for typical drive loading and for motors with standard NEMA secondary values of voltage andconsult factory with actual motor data

Max HPRating Single

Motor

6420Hoist

161 171 152

5 2 2 1

7 12 2 2 1

10 2 2 1

15 2 3 2

20 3 3 2

25 2 3 2

30 3 3 2

40 3 4 2

50 4 6 2

60 4 6 3

75 6 12 4

100 7 9 4

125 8 12 6

150 12 15 6

200 12 18 9

250 12 21 9

This tabulation is based on ECampM resistor designs for use with Class 6435drive loading and for motors with standard NEMA secondary values of voltage and

MaximumHP

HoistDynamic Lowering

NEMA Class152 162

5 1 175 1 110 1 215 2 220 2 225 2 330 2 340 3 350 3 460 3 475 4 6

NEMA SERVICE CLASSIF

Standard 6435 controllers meet the requirements of NEMA Services Crequirements of NEMA service classifications I (CMAA Sspeed point modification Form M3

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE NUMBER OF SEPARATELY MOUNTED STANDARSCLASS 6715 TABWELD RESISTOR SECTIONS (265rdquo LONG)

resistor designs for use with Class 6420 6421 6422 6426 controllers and is for estimatetabulation is for typical drive loading and for motors with standard NEMA secondary values of voltage and current For act

6421Hoist

6422Hoist

162 172 161 171 152

1 1 2 2 1

1 2 2 2 1

2 2 3 3 1

2 2 3 4 2

2 2 4 5 2

2 3 4 6 2

2 3 5 7 2

2 3 6 7 3

2 4 7 9 3

3 4 8 9 3

4 6 9 13 4

5 7 12 18 4

6 9 14 21 7

6 9 18 30 9

9 12 24 36 9

12 15 30 42 12

r designs for use with Class 6435 controller and is for estimate only This tabulation is fordrive loading and for motors with standard NEMA secondary values of voltage and current For actual quantities consult factory

HoistReversing

TravelReverse Plugging

NEMA Class NEMA Class152 162 1521 1 11 1 11 1 11 2 11 2 22 3 22 3 33 3 33 4 33 4 44 6 4

NEMA SERVICE CLASSIFICATIONS

meet the requirements of NEMA Services Classification II (CMAA service classifications A2 and B) to meet theervice classifications I (CMAA Service Classifications A1 C D E and F) the controller must be priced with the 5

September 2008

STANDARS

estimate only Thiscurrent For actual quantities

6426Hoist Bridge or Trolley

162 172

1 1

1 1

1 2

2 2

2 2

2 3

3 3

3 4

4 4

4 4

4 5

6 9

9 9

9 12

12 15

15 18

This tabulation is for typicalFor actual quantities consult factory

TravelReverse Plugging

NEMA Class162

11222334456

lassification II (CMAA service classifications A2 and B) to meet theE and F) the controller must be priced with the 5th

September 2008 FRONTLINE

MASTER SWITCHES AND

Class 9004 Type VGMaster Switch

CLASS 9004 VM OR CM

Control Class Speed Points

6420556

642156

642256

6426556

Motion Speed PointsHoist

(Dynamic Lowering)45

Hoist(Reversing)

45

Travel(Reverse Plugging)

45

Refer to Class 9004 catalog for more information

FRONTLINEreg AC CRANE CONTROL

GENERAL INFORMATIONMASTER SWITCHES AND MODIFICATIONS

Class 9004 Type CGMaster Switch

CLASS 9004 VM OR CM NEMA 1 ENCLOSED

oints Form VM TYPE

C1VG9

VG12

B1VG12VG16

D1VG12VG16

A1VG9

VG12

CONTROL 6435Form MA VM

A2AG9 VG9AG9 VG9

A3AG6 VG6AG9 VG9

A3AG6 VG6AG9 VG9

Refer to Class 9004 catalog for more information

AC CRANE CONTROL

19

CLASS

Class 9004 Type CGMaster Switch

CM TYPE

CG12CG12CG12CM16CG12CG16

CG12CG12

VM CMVG9 CG8VG9 CG12VG6 CG6VG9 CG8VG6 CG6VG9 CG8

CLASS

FRONTLINE

20

CLASS

GENERALMANUAL MAGNETIC DISC

The manual magnetic disconnect switch is used for protecting electrical crane circuits exOHSA requirements for a crane disconnect switchThe standard disconnect switch consists of

3mdashClass 8503 Type M form Y781 (with silver faced power contacttips) SPNO contactors The contactors are mechanically tiedOne normally open and one normally closed electricalinterlocks are included for indicating lights

1mdashTwo pole control molded case switch with padlock clip (1mdash460380230 to 255 volt fused control circuit transformer (1mdashIntermediate relay (CR)1mdashClass 9999AI1 Arc Suppressor

Volts5060Hz

NEMAContactor

Size

MaxAmperes

380or

460

4 1505 3006 6008 1350

Form

F30A

3 Main Line Power FusesStart-Stop Push Button

X11Additional Control CircuitNC interlocks can be added

A3 ldquoOnOffrdquo PushbuttonP1 Red ldquoOnrdquo Pilot LightP2 Green ldquoOffrdquo Pilot LightT12 200VA Additional Transformer Capacity

Class L fuse mounting is standard Customer

PILOT DEVICESThe pilot devices should be selected so the current rating is adequate for controlling the disconnect switch For coil9998 Coil Data catalog sheets An arc inhibitor may be required depending upon the ra

DISCONNEWhen applied to cranes the continuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated currentrequired by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

ORDERING INFORMATION REQUIRED1 Class2 Type3 Voltage4 Controller Modifications Specify Form

CLASS

FRONTLINEreg AC CRANE CONTROL

GENERAL INFORMATIONMANUAL MAGNETIC DISCONNECTS SWITCHES

etic disconnect switch is used for protecting electrical crane circuits except lifting magnet circuits The disconnect meets

ype M form Y781 (with silver faced power contacttips) SPNO contactors The contactors are mechanically tiedOne normally open and one normally closed electrical

case switch with padlock clip (CMCS)volt fused control circuit transformer (CTR)

CAM OPERATOR PREVENTSFROM CLOSING WHEN HANDLE IS IN OFFPOSITION

CONTACTORS OPERATED REMOTELY OR BYHANDLE ON THE ENCLOSURE

Amperes

Enclosures

General PurposeNEMA Type 1 gasketed

Dusttight NEMA Type 12Outdoor NEMA Type 3R

MFS12 MFA12MGS12 MGA12MHS12 MHA12MKS12 MKA12

MODIFICATIONSDescription

Main Line Power FusesStop Push Button

Additional Control Circuit Interlocks A maximum of 4 NONC interlocks can be added

Offrdquo PushbuttonRed ldquoOnrdquo Pilot LightGreen ldquoOffrdquo Pilot Light200VA Additional Transformer Capacity

Class L fuse mounting is standard Customer is to supply fuse rating

PILOT DEVICES SELECTIONThe pilot devices should be selected so the current rating is adequate for controlling the disconnect switch For coil currents9998 Coil Data catalog sheets An arc inhibitor may be required depending upon the ratings of the pilot device

DISCONNECT SWITCH SELECTIONcontinuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated current

required by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

September 2008

t lifting magnet circuits The disconnect meets

AM OPERATOR PREVENTS CONTACTORFROM CLOSING WHEN HANDLE IS IN OFF

ORS OPERATED REMOTELY OR BYHANDLE ON THE ENCLOSURE

currents refer to Class

continuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated currentrequired by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

September 2008 FRONTLINE

MANUAL MAGNETIC DISC

FRONTLINEreg AC CRANE CONTROL

MANUAL MAGNETIC DISCONNECT ELEMENTARY DIAGRA

AC CRANE CONTROL

21

CLASS

AGRAM

CLASS

FRONTLINE

22

CLASS

APPROXIMATE DIMESION

NEMASize

ContinuousAmpereRating A B C D

4 15018457

5127

8203

19483

5 30014356

3589

45114

28711

6 60018457

5127

8203

19483

8 135014356

5127

8203

28712

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMESIONS AND WEIGHTS

D E F G H J K L M

19483

30762

36914

2864727

315800

33838

3589

16229

36914

28711

33838

36914

267678

345876

36914

7178

72183

36914

19483

421067

421067

322818

4351105

451143

3589

10483

421067

28712

57838

441118

363922

345864

36914

70178

59137

741275

September 2008

M N

NetWeight

36914

15381

21096

36914

20508

235107

421067

20508

285130

741275

28508

300138

September 2008 FRONTLINE

MULTIMOTOR DRIVESTwo motors connected in parallel (duplex)control primary equipment and two sets of motor controlsecondary equipment are required in the controller Two sets ofpower resistors are also required

Four motors connected in parallel (quadruplex)necessary to double the duplex controller price given for twomotors in parallel One set of motor control primary and four setsof motor control secondary equipment are required Four sets opower resistors are required

CONTROLLERSNarrow width controllers ndash Most controllers ara narrow width construction These controllers when compared tostandard controllers are reduced width and increased height Fordetails see controller modifications and controller dimension

CONTROLLER MODIFICAT

Form Description

D6 Motor Isolating Circuit Breakers

B5 Brake Relay Reverse Plugging Controller Only

Y17 Arc Inhibitors Pendant Operated Controller

G95 Miniature Voltmeter Panel Mounted

G91 Miniature Ammeter Panel Mounted

E18 Narrow Width Panel

M24Substitute Type SZF Frequency Relay For ST1 StaticAcceleration Timers

H18Cabinet Space Heater Controlled By Interlock From MContactor

For Duplex Controllers For Duplex controllers multiply price by 2

1 Class2 Type3 Motor Horsepower4 Motor Primary Rated Voltage and Current

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATA

MULTIMOTOR DRIVESTwo motors connected in parallel (duplex) ndash One set of motorcontrol primary equipment and two sets of motor controlsecondary equipment are required in the controller Two sets of

Four motors connected in parallel (quadruplex) ndash It islex controller price given for two

motors in parallel One set of motor control primary and four setsof motor control secondary equipment are required Four sets of

CONTROLLERSMost controllers are also available in

a narrow width construction These controllers when compared tostandard controllers are reduced width and increased height For

see controller modifications and controller dimension

CONTROLLER MStandard controllers come equipped with the components listedSpecial features to be added to standard controllers are identifiedby Form number Most modifications are self

FORM D6 list motor isolation circuit breakers for use on duplexcontrollers For operation of the drive on one motor the motorline and connect breakers will disconnect one motor from the lineand connect the frequency relays to the power resistors of theother motor The brakes of the motor not in service are stillreleased electrically

FORM G95 lists a 3 frac12rdquo square miniature voltmeter to monitor onephase of motor primary voltage

FORM G9 lists a 3 frac12rdquo square miniature ammeter to monitor onephase of motor primary current Current transformersform are supplied Form G9 for motors above 10 HP20 HP 460 volts

CONTROLLER MODIFICATIONS

Brake Relay Reverse Plugging Controller Only

Arc Inhibitors Pendant Operated Controller

Substitute Type SZF Frequency Relay For ST1 Static

Cabinet Space Heater Controlled By Interlock From M

APPLICATION DATACLASS 6420 EDDYMAG

DYNAMIC MODEL AB-

MOTOR HPRATING

Brake Size

900 RMP Motors

Light DutyServices

SevereDutyServices

7 12 703

10 704

15 704

20 705

25 705

30 705

40 706

50 706

60 706

75 707

100 707

125 707

150 707200 708250 708300 708

ORDERING INFORMATION REQUIRED

5 Motor Secondary Rated Voltage andCurrent6 Controller Modifications Specify FormNumbers

7 Resistors Services Classification8 Master Switch Type and Form Number

AC CRANE CONTROL

23

CLASS

CLASS

CONTROLLER MODIFICATIONSStandard controllers come equipped with the components listedSpecial features to be added to standard controllers are identifiedby Form number Most modifications are self explanatory

list motor isolation circuit breakers for use on duplexcontrollers For operation of the drive on one motor the motorline and connect breakers will disconnect one motor from the lineand connect the frequency relays to the power resistors of the

motor The brakes of the motor not in service are still

lists a 3 frac12rdquo square miniature voltmeter to monitor one

lists a 3 frac12rdquo square miniature ammeter to monitor oneCurrent transformers with this

for motors above 10 HP 230 volt and

PPLICATION DATACLASS 6420 EDDYMAG HOIST

-FLOOR MOUNTED BRAKE

1200 RMP MotorsSevereDutyServices

Light DutyServices

SevereDutyServices

704 703 703

704 703 704

705 704 704

705 704 705

705 705 705

706 705 705

706 705 706

706 706 706

707 706 706

707 706 706

707 707 707

707 707 707

708 707 707708 707 708708 708 708--- 708 708

7 Resistors Services Classification8 Master Switch Type and Form Number

FRONTLINE

24

CLASS

CLASS

CRANE HOOK SPEED VS

CLASS 6421DYNAMIC LO

FIRST

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

O

FSY

NC

HR

ON

OU

SSP

EED

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

SY

NC

HR

ON

OU

SSP

PED

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATACRANE HOOK SPEED VS LOAD PERFORMANCE

CLASS 6420 EDDYMAGreg

CLASS 6421DYNAMIC LOWERING HOIST

FIRST

SECOND

THIRD

FOURTH

FIFTH

FIRST

SECOND

THIRD

FOURTH

FIFTH

40 60 80 100 120 140 160 180

LOAD PERFORMANCE IN OF SYNCHRONOUS SPEED

SECOND

THIRDFOURTH

FIFTH

FIRST

FIRST

SECOND amp THIRD

40 60 80 100 120 140 160 180

LOAD PERFORMANCE IN OF SYNCHRONOUS SPEED

September 2008

200

FIFTH

180 200

September 2008 FRONTLINE

CRANE HOOK SPEEDCLASS 6422 CONTRA

CLASS 6426

SECONDFIRST

FOURTH

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

O

FSY

NC

HR

ON

OU

SSP

EED

FIRST

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

SY

NC

HR

ON

OU

SSP

EED

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATACRANE HOOK SPEED VS LOAD PERFORMANCE

CLASS 6422 CONTRA-TORQUEreg

CLASS 6426 REVERSING HOIST CONTROL(With Mechanical Load Brake)

FIFTH

AUTOMATIC

FOURTH

THIRD

FIRST amp SECOND

SECOND

THIRD

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUS SPEED

SIXTH

SECOND

THIRD

FOURTH

FIFTH

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUSE SPEED

25

CLASS

CLASS

FIFTH

AUTOMATIC

FIRST amp SECOND

180 200

180 200

FRONTLINE

26

CLASS

AC CONTACTOR CONTROL

System AC Contactor Control

Crane Components

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switchradio controlReversing hoistsmechanical load brake gearboxAll other hoist stylesgearbox Best and critical positioning controlrequires E

ResistorsAcceleration resistor setSize based on HP amp duty cycle

Mo

tor

Perf

orm

an

ce

General

Velocity and acceleration is load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

More abrupt speed point

Slowdown

Travel Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

Hoist OFF point slowdown and braking withEddy-Current brakeDB circuitry

OFF Point

Travel No OFF point braking via control

Hoist OFF point braking by Eddybrake CONTRA

Reversing

Travel Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allowsoperation

Hoist Drive is stopped before each changein direction

Power ConsumptionPower dissipated in rotor resistors inspeed points

Component Wear

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Motors Encoders

Requires wound rotor motorNo encoder feedback

Motor blower not typically requiredoperation at reduced motor velocity as fulltorque is not available at zero speed

FRONTLINEreg AC CRANE CONTROL

AC CONTACTOR CONTROL vs DRIVES

AC Contactor Control Variable Frequency Drive

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switch and pendant orradio controlReversing hoists require worm gear ormechanical load brake gearbox

hoist styles require standardgearbox Best and critical positioning control

es Eddy-Current load brake

Inverter-duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limitpendant or radio controlOpen loop hoist controls require worm gear ormechanical load brake gearboxClosed loop hoist controlswith motor encoder feedback

Acceleration resistor set requiredSize based on HP amp duty cycle

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration is load dependantVelocity and acceleration are minimally (open(closed loop) load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

More abrupt speed point transitions Smooth speed point transitions

Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

OFF point slowdown and braking withurrent brake CONTRA-TORQUEreg or

DB circuitry

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

No OFF point braking via control

OFF point braking by Eddy-CurrentCONTRA-TORQUEreg or DB circuitry

OFF point Dynamic Braking (DB)deceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allows reacceleration after relayoperation

Drive is stopped before each changein direction

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speedachieved

Power dissipated in rotor resistors in lowspeed points

Uses less power at reduced velocity and duringacceleration

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Power contactors eliminatedMotor current switched by solidSpare drive recommended

Requires wound rotor motorNo encoder feedback required

Inverter-duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Motor blower not typically required foroperation at reduced motor velocity as fulltorque is not available at zero speed

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and highduty cycles

September 2008

Frequency Drive

duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limit switches master switch

require worm gear ormechanical load brake gearbox

require standard gearbox butwith motor encoder feedback

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration are minimally (open loop) or not(closed loop) load dependant

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

Smooth speed point transitions

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

OFF point Dynamic Braking (DB) with programmabledeceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speed

Uses less power at reduced velocity and during

Power contactors eliminatedMotor current switched by solid-state componentsSpare drive recommended

duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and high

September 2008 FRONTLINE

CLASS 5010 WB DRUM BRAKES

AIST rated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Hold drive stationary when motor is off

Available in 8rdquo to 30rdquo wheel diameters

Torque ratings 100 through 9000 ft-lbs

Corrosion resistant pins are standard on all brake sizes

Grease fittings are standard on 19rdquo 23rdquo and 30rdquo brake sizes

Available with optional self-adjuster

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

AIST rated and suitable for all crane classes

Used on bridge and trolley (horizontal travel) drives

Provide fixed holding torque for parking

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000

Stopping torque ratings up to 300 850 and 1500

Available for AC or DC control systems

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL(Contactor) CONTROLS

Hoist drive styles include Eddy-Current Brakeand Reversing Hoist controls

Reversing Plugging control for bridge and trolley (travel) drives

Meets NEMA Service Classification I

Available in NEMA contactor sizes 2 through 6

Numerous modifications available

Uses Class 8503 Type M Line-ARCreg contactors static timers

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

Meet OSHAamp NEC requirements for AC

Available in continuous ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by

Mechanical amp electrical interlocks prevent switch

CLASS 6170 YOUNGSTOWNreg

HOIST POWER LIMIT SWITCHES

Final safety limits for hoist upper travel

Interrupts motor power directly

Available in ratings up to 500HP at 230VDC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER

FRONTLINEreg AC CRANE CONTROL

ated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Corrosion resistant pins are standard on all brake sizes

andard on 19rdquo 23rdquo and 30rdquo brake sizes

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

ated and suitable for all crane classes

travel) drives

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000 ft-lbs respectively

Stopping torque ratings up to 300 850 and 1500 ft-lbs respectively

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL

Current Brake CONTRA-TORQUEreg AC Dynamic Lowering

bridge and trolley (travel) drives

Available in NEMA contactor sizes 2 through 6 through 300HP for single or multiple motors

contactors static timers and frequency relays for acceleration

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

crane disconnect switch

ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by the enclosure handle

Mechanical amp electrical interlocks prevent switch operation with handle in the OFF position

HOIST POWER LIMIT SWITCHES

to 500HP at 230VDC or up to 400HP at 460VAC and 550VAC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on-line at wwwECandMnet

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER MILL DUTY CONTROL COMPONENTS27

CLASS

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

FRONTLINE

28

CLASS

FRONTLINEreg AC CRANE CONTROL

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

copyCopyright The Electric Controller and Manufacturing Company LLCPrinted in the USA

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

September 2008

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

copyCopyright The Electric Controller and Manufacturing Company LLC 2007

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

Page 7: Ac Crane Control

September 2008 FRONTLINE

CONTRA

FRONTLINEreg AC CRANE CONTROL

CONTRA-TORQUEreg ELEMENTARY DIAGRAM

AC CRANE CONTROL

7

CLASS

CLASS

FRONTLINE

8

CLASS

REVERSING PLUGGINGClass 6426 controllers are recommended for used withThe hoist controllers are of the reversing hoist type and are used on cranes with mechanical load brakes Thereversing plugging type Both the hoist and the travel controlleroperated ac brakes

The standard single motor reversing hoist controller consists of equipment for a reversing plugging controllerfor plugging (PR)

BRIDGE OR TROLLEY SE

The standard single motor reversing controller consists of

1mdashTwo pole control molded case switch (CMCS)1mdashThree pole magnetic main line circuit breaker with padlock clip

(LCB)2mdashType M two-pole contactors with mechanical interlock1mdashType M two-pole main contactor (M)4 or 5 or 6Type M two-pole acceleration contactors (including one

for plugging) (P 1A 2A 3A 4A 5A 6A)3 or 4 or 5Type ST1 static acceleration timers

(1AR 2AR 3AR 4AR 5AR)1mdashType SZF frequency relay for plugging (PR)1mdash460380230 to 255 volt fused control circuit transformer

(CTR)1mdashControl Circuit Rectifier (RECT)1mdashType KFO under voltage relay (UV)3mdashType AO magnetic inverse time overload relays

(1OslashL 2OslashL 3OslashL)

1mdashSZF power loss protection relay circuit(SPR 2RECT 2MOV 2RES)

The standard duplex reversing plugging controller consists of theequipment for a single motor controller with the exceptionfollowing equipment is added4 or 5mdashType M two-pole acceleration contactors

(2P 21A 22A 23A 24A)3mdashType AO magnetic inverse time overload relays

(4OslashL 5OslashL 6OslashL)

Volts5060Hz

CraneRating

NEMAContactor

Size

MaxAmperes

MaxHp

Primary Secondary

Primary Secondary

380

67 67 30 2 2133 133 60 3 3200 200 100 4 4400 400 150 5 5400 400 200 5 5

460

67 67 40 2 2133 133 80 3 3200 200 125 4 4400 400 200 5 5400 400 300 5 5

380

67 67 30 2 2133 133 60 3 2200 200 100 4 3400 400 150 5 4400 400 200 5 5

460

67 67 40 2 2133 67 80 3 2200 133 120 4 3400 200 200 5 4400 400 300 5 5

Select controller based on motor horsepower and rated primary and secondary current FordiamsPrice is for single motor reversing plugging or reversing hoist For reversing hoist change theThese controllers have 6 speed points available but are used with 5point master switches the last acceleration point beingThese controllers have seven speed points available but are used with 6point master swit

ORDERING INFORMATION REQUIRED See Page 23MODIFICATIONS See Page 24

CLASS

FRONTLINEreg AC CRANE CONTROL

REVERSING PLUGGING CONTROLfor used with ac wound rotor motor on hoist and travel drives of general-purpose

The hoist controllers are of the reversing hoist type and are used on cranes with mechanical load brakes The travel panels are of thecontrollers are arranged for use with rectifier operated dc shunt brakes or solenoid

HOIST SERVICEThe standard single motor reversing hoist controller consists of equipment for a reversing plugging controller but without

BRIDGE OR TROLLEY SERVICE

The standard single motor reversing controller consists of

Three pole magnetic main line circuit breaker with padlock clip

contactors with mechanical interlock (F R)

including one

volt fused control circuit transformer

rsing plugging controller consists of thefor a single motor controller with the exception that the

MILL DUTY CLASS 8503 TYPE M CLAPPER TYPECONTACTORS

CLASS 8501 TYPE SZF FREQUENCY ACCELERATIONRELAYS FOR PLUGGING

CLASS 7001 TYPE ST1 STATICACCELERATION TIMERS

NoSpeedPoints

OpenType

General PurposeEnclosure NEMAType 1 Gasketed

Outdoor EnclosureNEMA Type 3R

Secondary

SINGLE MOTOR CONTROL

5 DOR76 DSR76 DWR765 EOR76 ESR76 EWR765 FOR76 FSR76 FWR765 GOR76 GSR76 GWR766 GOR96 GSR96 GWR96

5 DOR76 DSR76 DWR765 EOR76 ESR76 EWR765 FOR76 FSR76 FWR765 GOR76 GSR76 GWR766 GOR96 GSR96 GWR96

DUPLEX MOTOR CONTROL5 DOR86 DSR86 DWR865 EOR86 ESR86 EWR865 FOR86 FSR86 FWR865 GOR86 GSR86 GWR865 GOR106 GSR106 GWR106

5 DOR86 DSR86 DWR865 EOR86 ESR86 EWR865 FOR86 FSR86 FWR865 GOR86 GSR86 GWR865 GOR106 GSR106 GWR106

Select controller based on motor horsepower and rated primary and secondary current For explanation refer to Controller Ratings section of Application DataPrice is for single motor reversing plugging or reversing hoist For reversing hoist change the R in the type to an H

These controllers have 6 speed points available but are used with 5point master switches the last acceleration point being relay controlledThese controllers have seven speed points available but are used with 6point master switches the last acceleration point being relay controlled

See Page 23See Page 24

APPLICATION INFORMATIONDIMENSIONAL INFORMATION

September 2008

purpose overhead cranespanels are of the

r operated dc shunt brakes or solenoid

out SZF frequency relay

MILL DUTY CLASS 8503 TYPE M CLAPPER TYPE

CLASS 8501 TYPE SZF FREQUENCY ACCELERATION

STATICACCELERATION TIMERS

DusttightEnclosure NEMA

Type 12

DAR76EAR76FAR76GAR76GAR96

DAR76EAR76FAR76GAR76GAR96

DAR86EAR86FAR86GAR86

GAR106

DAR86EAR86FAR86GAR86

GAR106Application Data

APPLICATION INFORMATION See Pages 23-25DIMENSIONAL INFORMATION See Pages 10amp11

September 2008 FRONTLINE

REVERSING PLUGGING E

FRONTLINEreg AC CRANE CONTROL

REVERSING PLUGGING ELEMENTARY DIAGRAM

AC CRANE CONTROL

9

CLASS

LEMENTARY DIAGRAM

CLASS

FRONTLINE

10

CLASS

CLASS

APPROXIMATE DIMENSIOSINGLE AND DUPLEX MOTOR CONTROL STANDA

OPEN TYPE

MAXIMUM HP

460V 380VHin

mm

HOISTClasses6420 amp6422

40 3048

1219

80 6048

1219

125 10048

1219200 150

NOT A300 200

HOISTClasses6421 amp6426

ampBridge orTrolleyClass6426

40 3048

1219

80 6048

1219

125 10048

1219

NOT A200 150

300 200

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMENSIONS AND WEIGHTSMOTOR CONTROL STANDARD CONTROLLERS

ENCLOSED TYPE

OPEN TYPE ENCLOSED TYPE

Win

mm

Cin

mm

NETWeightLbskg

Win

mm

Cin

mm

SINGLE MOTOR CONTROL69

175312305

52523848

121969

175369

175312305

70031848

121969

175369

175312305

70031848

121969

1753

NOT AVAILABLE IN STANDARD DIMENSIONS SEE NARROW WIDTH DIM

DUPLEX MOTOR CONTROL69

175312305

50022748

121969

175369

175312305

70031848

121969

175369

175312305

70031848

121969

1753

NOT AVAILABLE IN STANDARD DIMENSIONS SEE NARROW WIDTH DIM

September 2008

RD CONTROLLERS

ENCLOSED TYPE

ENCLOSED TYPE

Din

mm

NETWeightLbskg

15381

750341

15381

900409

15381

900409

SEE NARROW WIDTH DIMENSIONS

15381

700318

15381

900409

15381

900409

SEE NARROW WIDTH DIMENSIONS

September 2008 FRONTLINE

APPROXIMATESINGLE AND DUPLEX

OPEN TYPE

DRIVE

MAXIMUM HP

460V 380Vmm

HOIST(All Classes)and Bridge

Trolley

40 30

80 601727

125 1001727

200 1501981

300 2001981

CLASS 6426Bridge and

Trolleyonly

40 30

80 601727

125 1001727

200 150

300 200

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMENSIONS AND WEIGHTSAND DUPLEX MOTOR CONTROL NARROW WIDTH CONTR

ENCLOSED TYPE

OPEN TYPE

Hin

mm

Win

mm

Cin

mm

NETWeightLbskg

Hin

mm

SINGLE MOTOR CONTROL- - - - -

681727

631600

12305

70031868

172768

172763

160012305

70031868

172778

198177

195615381

130059078

198178

198177

195615381

130059078

1981DUPLEX MOTOR CONTROL

- - - - -68

172775

190512305

100045468

172768

172775

190512305

100045468

1727

NOT AVAILABLE IN STANDARD DIMENSIONS SEE NARROW WIDTH DIM

AC CRANE CONTROL

11

CLASS

CLASS6420642164226426CONTROLLERS

ENCLOSED TYPE

ENCLOSED TYPE

Win

mm

Din

mm

NETWeightLbskg

- -63

160015381

900409

631600

15381

900409

771956

17482

1800817

771956

17482

1800817

- -75

190515381

1400635

751905

15381

1400635

SEE NARROW WIDTH DIMENSIONS

FRONTLINE

12

CLASS

WITH SQUARE DGENERAL INFORMATION

Class 6435 controllers are recommended for used withThe hoist controllers are of the reversing dynamic lowering type whenhoist type when used on cranes with mechanical load brakestravel controls are designed for use with rectifier operated dc brakes or solenoid operated ac brakes

The standard single motor reversing hoist controller consists of equipment for afrequency relay plugging The standard single motor reversing dynamic lowering hoist controller consists of the equipment for a single motorreversing plugging controller with one additional type S three pole contactorprovided (CR) and a pneumatic timing delay is deleted (IA)NOTE DUPLEX CONTROLLERS ARE NOT AVAILABLE

The standard single motor reversing plugging controller consistsof

1mdashTwo pole control molded case switch (MCB)1mdashThree pole magnetic main line circuit breaker with padlock clip

(LCB)2mdashType S three-pole directional contactors with mechanical

interlock (F R)3mdashType S three-pole acceleration contactors (including one for

plugging) (1A 2A P)2mdashPneumatic timing acceleration units (1A 2A)1mdashType SZF frequency relay for plugging (PR)1mdash460230 to 115 volt fused control circuit transformer (1mdashControl Circuit Rectifier (RECT)1mdashUndervoltage relay (UV)3mdashMagnetic inverse time overload relays (1OslashL 2OslashL 3OslashL1mdashSZF power loss protection relay circuit (SPR 2RECT 2MOV2RES)

Volts5060Hz

CraneRating

ContactorMaxAmperes

MaxHp

Primary SecondaryREVERSING AC

38067 100 30133 199 60

46067 100 40133 199 80

38067 100 30133 199 60

46067 100 40133 199 80

REVESING PLUGGING BRIDGE OR TROLLEY CONTROL

38067 100 30133 199 60

46067 100 40133 199 80

Select controller based on horsepower and rated primary and secondary current For

ORDERING INFORMATION REQUIRED

1 Class2 Type3 Motor Horsepower

4 Motor Primary Rated Voltage and Current5 Motor Secondary Rated Voltage and Current6 Controller Modifications Specify Form Numbers

CLASS

FRONTLINEreg AC CRANE CONTROL

SQUARE D CLASS 8502 TYPE S CONTACTORSreg

GENERAL INFORMATIONHOIST SERVICE

controllers are recommended for used with ac wound rotor motor on hoist and travel drives of general-purposedynamic lowering type when used on cranes without mechanical load brakes and are of the reversing

hoist type when used on cranes with mechanical load brakes The travel controllers are of the reversing plugging type Both the hoist and thefor use with rectifier operated dc brakes or solenoid operated ac brakes

BRIDGE OR TROLLEYThe standard single motor reversing hoist controller consists of equipment for a single motor reversing plugging controller

The standard single motor reversing dynamic lowering hoist controller consists of the equipment for a single motorS three pole contactor provided for dynamic lowering (DB) one additional control relay

pneumatic timing delay is deleted (IA)NOTE DUPLEX CONTROLLERS ARE NOT AVAILABLE

controller consists

Three pole magnetic main line circuit breaker with padlock clip

contactors with mechanical

(including one for

5 volt fused control circuit transformer (CTR)

1OslashL 2OslashL 3OslashL)SZF power loss protection relay circuit (SPR 2RECT 2MOV and

CLASS 8502 TYPE S CONTACTORS PNEUMATOC TIMING ACCELERATION CLASS 8501 TYPE SZF FREQUENCY RELAY FOR

PLUGGING

NEMAContactor

Size

NoSpeedPoints

OpenType

General PurposeEnclosure NEMAType 1 Gasketed

REVERSING AC DYNAMIC LOWERING HOIST CONTROL2 4 DOH71 DSH713 4 EOH71 ESH712 4 DOH71 DSH713 4 EOH71 ESH71REVERSING HOIST CONTROL2 4 DOH76 DSH763 4 EOH76 ESH762 4 DOH76 DSH763 4 EOH76 ESH76

REVESING PLUGGING BRIDGE OR TROLLEY CONTROL2 4 DOR76 DSR763 4 EOR76 ESR762 4 DOR76 DSR763 4 EOR76 ESR76

Select controller based on horsepower and rated primary and secondary current For explanation refer to Controller Ratings section of

ORDERING INFORMATION REQUIRED

4 Motor Primary Rated Voltage and Current5 Motor Secondary Rated Voltage and Current6 Controller Modifications Specify Form Numbers

7 Resistors Services Classification8 Master Switch Type and Form Number

September 2008

purpose overhead cranesout mechanical load brakes and are of the reversing

versing plugging type Both the hoist and the

reversing plugging controller but without SZFThe standard single motor reversing dynamic lowering hoist controller consists of the equipment for a single motor

one additional control relay

LASS 8502 TYPE S CONTACTORSPNEUMATOC TIMING ACCELERATION

FREQUENCY RELAY FOR

Outdoor EnclosureNEMA Type 3R

DWH71EWH71DWH71EWH71

DWH76EWH76DWH76EWH76

DWR76EWR76DWR76EWR76

refer to Controller Ratings section of Application Data

7 Resistors Services Classification8 Master Switch Type and Form Number

September 2008 FRONTLINE

WITH CLASSTRAVEL CONTROL

FRONTLINEreg AC CRANE CONTROL

WITH CLASS SQUARE D 8502 TYPE S CONTACTOTRAVEL CONTROL ELEMENTARY DIAGRAM

AC CRANE CONTROL

13

CLASS

8502 TYPE S CONTACTORS

CLASS

FRONTLINE

14

CLASS

WITH CLASS SQUARE DREVERSING HOIST

CLASS

FRONTLINEreg AC CRANE CONTROL

SQUARE D 8502 TYPE S CONTACTORSREVERSING HOIST ELMENTARY DIAGRAM

September 2008

September 2008 FRONTLINE

WITH CLASS SQUARE DDYNAMIC LOWERING HOI

FRONTLINEreg AC CRANE CONTROL

WITH CLASS SQUARE D 8502 TYPE S CONTACTODYNAMIC LOWERING HOIST ELEMENTARY DIAGRAM

AC CRANE CONTROL

15

CLASS

8502 TYPE S CONTACTORSDIAGRAM

CLASS

FRONTLINE

16

CLASS

APPROXIMATE DIMENSIOCLASS 8502 TYPE S CO

OPEN TYPE

DriveMaximum

HP(Volts)

Open Type

Hin

mm

Win

mm

Hoist orTravel

20(380)

401016

24607

40(460)

401016

24607

40(380)

401016

30762

80(460)

401016

30762

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMENSIONS AND WEIGHTSCLASS 8502 TYPE S CONTACTORS

ENCLOSED TYPE

Open Type Enclosed Type

Cin

mm

NetWeightlbskg

Hin

mm

Win

mm

85216

1506842

106730762

85216

1506842

106730762

10254

2009142

106736914

10254

2009142

106736914

September 2008

ENCLOSED TYPE

Enclosed Type

Din

mm

NetWeightlbskg

15381

300136

15381

300136

15381

385175

15381

385175

September 2008 FRONTLINE

A set of TABWELDreg resistors are required forapplications

RESISTOR APPLICATION

For resistors mounted in racks unwired ndash refer to Class 6715

Class 151 and 152 is recommended for light crane duty

Class 161 and 162 is recommended for standard duty

Class 171 and172 is recommended for severe duty

For explanation of NEMA resistor classifications

CLASS 6715 RESISTORS

To order an AC acceleration resistor set for use with duplex Cpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V andat 67A

Controller Class EnclosureMotorRating

ControlScheme

Code Type Code Code

6420 A0None N

ldquoHrdquo(HP)

6421 A16422 A2

Open O6426 A6

Hoist6435

A7Nema

1G

ldquoKrdquo(kw)

Travel6435

A8Nema

3RW

CustomerDesign

A99NemaScreenCovers

C

NEMA ClassSpeed Points

System VoltageMotor Rated Voltage

Class 6715

Controller TypeEnclosure

Motor Power

Motor ConfigurationRotor Volts

Rotor Amps

FRONTLINEreg AC CRANE CONTROL

SELECTION AND APPLICATIONe required for each AC motor control The following table is for selecting resistor for all AC motor control

RESISTOR APPLICATION

refer to Class 6715

Class 151 and 152 is recommended for light crane duty

Class 161 and 162 is recommended for standard duty

Class 171 and172 is recommended for severe duty

For explanation of NEMA resistor classifications ndash refer to Class 6715

CLASS

CLASS 6715 RESISTORS SELECTION TABLE

EXAMPLE AC RESISTOR SETTo order an AC acceleration resistor set for use with duplex CONTRA-TORQUE hoist (2 motors in parallel) NEMA 161 duty cycle 5 speedpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V and

CLASS 6715 RESISTOR SELECTION TABLE

NEMA DUTYSpeedPoints

NO

SystemVoltage

MotorRated

Voltage

Class Code Code V Code V Code

151 A3 208 2 208 2152 B

161 C

162 D4 380 3 380 3171 E

172 F91 G

5460 4 460 4

92 H

CustomerDesign

CS 575 5 575 56

4 4A2 G 37K C 5Class 6715

AC CRANE CONTROL

17

CLASS

The following table is for selecting resistor for all AC motor control

6715

hoist (2 motors in parallel) NEMA 161 duty cycle 5 speedpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V and rotor amps

MotorConfiguration

Ro

tor

Ro

tor

Code Type Code

Simplex S

Vo

lts

Am

psDuplex D

Quadruplex Q

4 D 350V 67A

CLASS

FRONTLINE

18

CLASS

APPROXIMATE NUMBER OCLASS 6715 TABWELD R

This tabulation is based on ECampM resistor designs for use with Class 6420 6421 6422 6426 controllerstabulation is for typical drive loading and for motors with standard NEMA secondary values of voltage andconsult factory with actual motor data

Max HPRating Single

Motor

6420Hoist

161 171 152

5 2 2 1

7 12 2 2 1

10 2 2 1

15 2 3 2

20 3 3 2

25 2 3 2

30 3 3 2

40 3 4 2

50 4 6 2

60 4 6 3

75 6 12 4

100 7 9 4

125 8 12 6

150 12 15 6

200 12 18 9

250 12 21 9

This tabulation is based on ECampM resistor designs for use with Class 6435drive loading and for motors with standard NEMA secondary values of voltage and

MaximumHP

HoistDynamic Lowering

NEMA Class152 162

5 1 175 1 110 1 215 2 220 2 225 2 330 2 340 3 350 3 460 3 475 4 6

NEMA SERVICE CLASSIF

Standard 6435 controllers meet the requirements of NEMA Services Crequirements of NEMA service classifications I (CMAA Sspeed point modification Form M3

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE NUMBER OF SEPARATELY MOUNTED STANDARSCLASS 6715 TABWELD RESISTOR SECTIONS (265rdquo LONG)

resistor designs for use with Class 6420 6421 6422 6426 controllers and is for estimatetabulation is for typical drive loading and for motors with standard NEMA secondary values of voltage and current For act

6421Hoist

6422Hoist

162 172 161 171 152

1 1 2 2 1

1 2 2 2 1

2 2 3 3 1

2 2 3 4 2

2 2 4 5 2

2 3 4 6 2

2 3 5 7 2

2 3 6 7 3

2 4 7 9 3

3 4 8 9 3

4 6 9 13 4

5 7 12 18 4

6 9 14 21 7

6 9 18 30 9

9 12 24 36 9

12 15 30 42 12

r designs for use with Class 6435 controller and is for estimate only This tabulation is fordrive loading and for motors with standard NEMA secondary values of voltage and current For actual quantities consult factory

HoistReversing

TravelReverse Plugging

NEMA Class NEMA Class152 162 1521 1 11 1 11 1 11 2 11 2 22 3 22 3 33 3 33 4 33 4 44 6 4

NEMA SERVICE CLASSIFICATIONS

meet the requirements of NEMA Services Classification II (CMAA service classifications A2 and B) to meet theervice classifications I (CMAA Service Classifications A1 C D E and F) the controller must be priced with the 5

September 2008

STANDARS

estimate only Thiscurrent For actual quantities

6426Hoist Bridge or Trolley

162 172

1 1

1 1

1 2

2 2

2 2

2 3

3 3

3 4

4 4

4 4

4 5

6 9

9 9

9 12

12 15

15 18

This tabulation is for typicalFor actual quantities consult factory

TravelReverse Plugging

NEMA Class162

11222334456

lassification II (CMAA service classifications A2 and B) to meet theE and F) the controller must be priced with the 5th

September 2008 FRONTLINE

MASTER SWITCHES AND

Class 9004 Type VGMaster Switch

CLASS 9004 VM OR CM

Control Class Speed Points

6420556

642156

642256

6426556

Motion Speed PointsHoist

(Dynamic Lowering)45

Hoist(Reversing)

45

Travel(Reverse Plugging)

45

Refer to Class 9004 catalog for more information

FRONTLINEreg AC CRANE CONTROL

GENERAL INFORMATIONMASTER SWITCHES AND MODIFICATIONS

Class 9004 Type CGMaster Switch

CLASS 9004 VM OR CM NEMA 1 ENCLOSED

oints Form VM TYPE

C1VG9

VG12

B1VG12VG16

D1VG12VG16

A1VG9

VG12

CONTROL 6435Form MA VM

A2AG9 VG9AG9 VG9

A3AG6 VG6AG9 VG9

A3AG6 VG6AG9 VG9

Refer to Class 9004 catalog for more information

AC CRANE CONTROL

19

CLASS

Class 9004 Type CGMaster Switch

CM TYPE

CG12CG12CG12CM16CG12CG16

CG12CG12

VM CMVG9 CG8VG9 CG12VG6 CG6VG9 CG8VG6 CG6VG9 CG8

CLASS

FRONTLINE

20

CLASS

GENERALMANUAL MAGNETIC DISC

The manual magnetic disconnect switch is used for protecting electrical crane circuits exOHSA requirements for a crane disconnect switchThe standard disconnect switch consists of

3mdashClass 8503 Type M form Y781 (with silver faced power contacttips) SPNO contactors The contactors are mechanically tiedOne normally open and one normally closed electricalinterlocks are included for indicating lights

1mdashTwo pole control molded case switch with padlock clip (1mdash460380230 to 255 volt fused control circuit transformer (1mdashIntermediate relay (CR)1mdashClass 9999AI1 Arc Suppressor

Volts5060Hz

NEMAContactor

Size

MaxAmperes

380or

460

4 1505 3006 6008 1350

Form

F30A

3 Main Line Power FusesStart-Stop Push Button

X11Additional Control CircuitNC interlocks can be added

A3 ldquoOnOffrdquo PushbuttonP1 Red ldquoOnrdquo Pilot LightP2 Green ldquoOffrdquo Pilot LightT12 200VA Additional Transformer Capacity

Class L fuse mounting is standard Customer

PILOT DEVICESThe pilot devices should be selected so the current rating is adequate for controlling the disconnect switch For coil9998 Coil Data catalog sheets An arc inhibitor may be required depending upon the ra

DISCONNEWhen applied to cranes the continuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated currentrequired by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

ORDERING INFORMATION REQUIRED1 Class2 Type3 Voltage4 Controller Modifications Specify Form

CLASS

FRONTLINEreg AC CRANE CONTROL

GENERAL INFORMATIONMANUAL MAGNETIC DISCONNECTS SWITCHES

etic disconnect switch is used for protecting electrical crane circuits except lifting magnet circuits The disconnect meets

ype M form Y781 (with silver faced power contacttips) SPNO contactors The contactors are mechanically tiedOne normally open and one normally closed electrical

case switch with padlock clip (CMCS)volt fused control circuit transformer (CTR)

CAM OPERATOR PREVENTSFROM CLOSING WHEN HANDLE IS IN OFFPOSITION

CONTACTORS OPERATED REMOTELY OR BYHANDLE ON THE ENCLOSURE

Amperes

Enclosures

General PurposeNEMA Type 1 gasketed

Dusttight NEMA Type 12Outdoor NEMA Type 3R

MFS12 MFA12MGS12 MGA12MHS12 MHA12MKS12 MKA12

MODIFICATIONSDescription

Main Line Power FusesStop Push Button

Additional Control Circuit Interlocks A maximum of 4 NONC interlocks can be added

Offrdquo PushbuttonRed ldquoOnrdquo Pilot LightGreen ldquoOffrdquo Pilot Light200VA Additional Transformer Capacity

Class L fuse mounting is standard Customer is to supply fuse rating

PILOT DEVICES SELECTIONThe pilot devices should be selected so the current rating is adequate for controlling the disconnect switch For coil currents9998 Coil Data catalog sheets An arc inhibitor may be required depending upon the ratings of the pilot device

DISCONNECT SWITCH SELECTIONcontinuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated current

required by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

September 2008

t lifting magnet circuits The disconnect meets

AM OPERATOR PREVENTS CONTACTORFROM CLOSING WHEN HANDLE IS IN OFF

ORS OPERATED REMOTELY OR BYHANDLE ON THE ENCLOSURE

currents refer to Class

continuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated currentrequired by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

September 2008 FRONTLINE

MANUAL MAGNETIC DISC

FRONTLINEreg AC CRANE CONTROL

MANUAL MAGNETIC DISCONNECT ELEMENTARY DIAGRA

AC CRANE CONTROL

21

CLASS

AGRAM

CLASS

FRONTLINE

22

CLASS

APPROXIMATE DIMESION

NEMASize

ContinuousAmpereRating A B C D

4 15018457

5127

8203

19483

5 30014356

3589

45114

28711

6 60018457

5127

8203

19483

8 135014356

5127

8203

28712

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMESIONS AND WEIGHTS

D E F G H J K L M

19483

30762

36914

2864727

315800

33838

3589

16229

36914

28711

33838

36914

267678

345876

36914

7178

72183

36914

19483

421067

421067

322818

4351105

451143

3589

10483

421067

28712

57838

441118

363922

345864

36914

70178

59137

741275

September 2008

M N

NetWeight

36914

15381

21096

36914

20508

235107

421067

20508

285130

741275

28508

300138

September 2008 FRONTLINE

MULTIMOTOR DRIVESTwo motors connected in parallel (duplex)control primary equipment and two sets of motor controlsecondary equipment are required in the controller Two sets ofpower resistors are also required

Four motors connected in parallel (quadruplex)necessary to double the duplex controller price given for twomotors in parallel One set of motor control primary and four setsof motor control secondary equipment are required Four sets opower resistors are required

CONTROLLERSNarrow width controllers ndash Most controllers ara narrow width construction These controllers when compared tostandard controllers are reduced width and increased height Fordetails see controller modifications and controller dimension

CONTROLLER MODIFICAT

Form Description

D6 Motor Isolating Circuit Breakers

B5 Brake Relay Reverse Plugging Controller Only

Y17 Arc Inhibitors Pendant Operated Controller

G95 Miniature Voltmeter Panel Mounted

G91 Miniature Ammeter Panel Mounted

E18 Narrow Width Panel

M24Substitute Type SZF Frequency Relay For ST1 StaticAcceleration Timers

H18Cabinet Space Heater Controlled By Interlock From MContactor

For Duplex Controllers For Duplex controllers multiply price by 2

1 Class2 Type3 Motor Horsepower4 Motor Primary Rated Voltage and Current

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATA

MULTIMOTOR DRIVESTwo motors connected in parallel (duplex) ndash One set of motorcontrol primary equipment and two sets of motor controlsecondary equipment are required in the controller Two sets of

Four motors connected in parallel (quadruplex) ndash It islex controller price given for two

motors in parallel One set of motor control primary and four setsof motor control secondary equipment are required Four sets of

CONTROLLERSMost controllers are also available in

a narrow width construction These controllers when compared tostandard controllers are reduced width and increased height For

see controller modifications and controller dimension

CONTROLLER MStandard controllers come equipped with the components listedSpecial features to be added to standard controllers are identifiedby Form number Most modifications are self

FORM D6 list motor isolation circuit breakers for use on duplexcontrollers For operation of the drive on one motor the motorline and connect breakers will disconnect one motor from the lineand connect the frequency relays to the power resistors of theother motor The brakes of the motor not in service are stillreleased electrically

FORM G95 lists a 3 frac12rdquo square miniature voltmeter to monitor onephase of motor primary voltage

FORM G9 lists a 3 frac12rdquo square miniature ammeter to monitor onephase of motor primary current Current transformersform are supplied Form G9 for motors above 10 HP20 HP 460 volts

CONTROLLER MODIFICATIONS

Brake Relay Reverse Plugging Controller Only

Arc Inhibitors Pendant Operated Controller

Substitute Type SZF Frequency Relay For ST1 Static

Cabinet Space Heater Controlled By Interlock From M

APPLICATION DATACLASS 6420 EDDYMAG

DYNAMIC MODEL AB-

MOTOR HPRATING

Brake Size

900 RMP Motors

Light DutyServices

SevereDutyServices

7 12 703

10 704

15 704

20 705

25 705

30 705

40 706

50 706

60 706

75 707

100 707

125 707

150 707200 708250 708300 708

ORDERING INFORMATION REQUIRED

5 Motor Secondary Rated Voltage andCurrent6 Controller Modifications Specify FormNumbers

7 Resistors Services Classification8 Master Switch Type and Form Number

AC CRANE CONTROL

23

CLASS

CLASS

CONTROLLER MODIFICATIONSStandard controllers come equipped with the components listedSpecial features to be added to standard controllers are identifiedby Form number Most modifications are self explanatory

list motor isolation circuit breakers for use on duplexcontrollers For operation of the drive on one motor the motorline and connect breakers will disconnect one motor from the lineand connect the frequency relays to the power resistors of the

motor The brakes of the motor not in service are still

lists a 3 frac12rdquo square miniature voltmeter to monitor one

lists a 3 frac12rdquo square miniature ammeter to monitor oneCurrent transformers with this

for motors above 10 HP 230 volt and

PPLICATION DATACLASS 6420 EDDYMAG HOIST

-FLOOR MOUNTED BRAKE

1200 RMP MotorsSevereDutyServices

Light DutyServices

SevereDutyServices

704 703 703

704 703 704

705 704 704

705 704 705

705 705 705

706 705 705

706 705 706

706 706 706

707 706 706

707 706 706

707 707 707

707 707 707

708 707 707708 707 708708 708 708--- 708 708

7 Resistors Services Classification8 Master Switch Type and Form Number

FRONTLINE

24

CLASS

CLASS

CRANE HOOK SPEED VS

CLASS 6421DYNAMIC LO

FIRST

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

O

FSY

NC

HR

ON

OU

SSP

EED

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

SY

NC

HR

ON

OU

SSP

PED

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATACRANE HOOK SPEED VS LOAD PERFORMANCE

CLASS 6420 EDDYMAGreg

CLASS 6421DYNAMIC LOWERING HOIST

FIRST

SECOND

THIRD

FOURTH

FIFTH

FIRST

SECOND

THIRD

FOURTH

FIFTH

40 60 80 100 120 140 160 180

LOAD PERFORMANCE IN OF SYNCHRONOUS SPEED

SECOND

THIRDFOURTH

FIFTH

FIRST

FIRST

SECOND amp THIRD

40 60 80 100 120 140 160 180

LOAD PERFORMANCE IN OF SYNCHRONOUS SPEED

September 2008

200

FIFTH

180 200

September 2008 FRONTLINE

CRANE HOOK SPEEDCLASS 6422 CONTRA

CLASS 6426

SECONDFIRST

FOURTH

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

O

FSY

NC

HR

ON

OU

SSP

EED

FIRST

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

SY

NC

HR

ON

OU

SSP

EED

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATACRANE HOOK SPEED VS LOAD PERFORMANCE

CLASS 6422 CONTRA-TORQUEreg

CLASS 6426 REVERSING HOIST CONTROL(With Mechanical Load Brake)

FIFTH

AUTOMATIC

FOURTH

THIRD

FIRST amp SECOND

SECOND

THIRD

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUS SPEED

SIXTH

SECOND

THIRD

FOURTH

FIFTH

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUSE SPEED

25

CLASS

CLASS

FIFTH

AUTOMATIC

FIRST amp SECOND

180 200

180 200

FRONTLINE

26

CLASS

AC CONTACTOR CONTROL

System AC Contactor Control

Crane Components

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switchradio controlReversing hoistsmechanical load brake gearboxAll other hoist stylesgearbox Best and critical positioning controlrequires E

ResistorsAcceleration resistor setSize based on HP amp duty cycle

Mo

tor

Perf

orm

an

ce

General

Velocity and acceleration is load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

More abrupt speed point

Slowdown

Travel Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

Hoist OFF point slowdown and braking withEddy-Current brakeDB circuitry

OFF Point

Travel No OFF point braking via control

Hoist OFF point braking by Eddybrake CONTRA

Reversing

Travel Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allowsoperation

Hoist Drive is stopped before each changein direction

Power ConsumptionPower dissipated in rotor resistors inspeed points

Component Wear

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Motors Encoders

Requires wound rotor motorNo encoder feedback

Motor blower not typically requiredoperation at reduced motor velocity as fulltorque is not available at zero speed

FRONTLINEreg AC CRANE CONTROL

AC CONTACTOR CONTROL vs DRIVES

AC Contactor Control Variable Frequency Drive

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switch and pendant orradio controlReversing hoists require worm gear ormechanical load brake gearbox

hoist styles require standardgearbox Best and critical positioning control

es Eddy-Current load brake

Inverter-duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limitpendant or radio controlOpen loop hoist controls require worm gear ormechanical load brake gearboxClosed loop hoist controlswith motor encoder feedback

Acceleration resistor set requiredSize based on HP amp duty cycle

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration is load dependantVelocity and acceleration are minimally (open(closed loop) load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

More abrupt speed point transitions Smooth speed point transitions

Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

OFF point slowdown and braking withurrent brake CONTRA-TORQUEreg or

DB circuitry

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

No OFF point braking via control

OFF point braking by Eddy-CurrentCONTRA-TORQUEreg or DB circuitry

OFF point Dynamic Braking (DB)deceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allows reacceleration after relayoperation

Drive is stopped before each changein direction

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speedachieved

Power dissipated in rotor resistors in lowspeed points

Uses less power at reduced velocity and duringacceleration

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Power contactors eliminatedMotor current switched by solidSpare drive recommended

Requires wound rotor motorNo encoder feedback required

Inverter-duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Motor blower not typically required foroperation at reduced motor velocity as fulltorque is not available at zero speed

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and highduty cycles

September 2008

Frequency Drive

duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limit switches master switch

require worm gear ormechanical load brake gearbox

require standard gearbox butwith motor encoder feedback

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration are minimally (open loop) or not(closed loop) load dependant

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

Smooth speed point transitions

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

OFF point Dynamic Braking (DB) with programmabledeceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speed

Uses less power at reduced velocity and during

Power contactors eliminatedMotor current switched by solid-state componentsSpare drive recommended

duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and high

September 2008 FRONTLINE

CLASS 5010 WB DRUM BRAKES

AIST rated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Hold drive stationary when motor is off

Available in 8rdquo to 30rdquo wheel diameters

Torque ratings 100 through 9000 ft-lbs

Corrosion resistant pins are standard on all brake sizes

Grease fittings are standard on 19rdquo 23rdquo and 30rdquo brake sizes

Available with optional self-adjuster

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

AIST rated and suitable for all crane classes

Used on bridge and trolley (horizontal travel) drives

Provide fixed holding torque for parking

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000

Stopping torque ratings up to 300 850 and 1500

Available for AC or DC control systems

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL(Contactor) CONTROLS

Hoist drive styles include Eddy-Current Brakeand Reversing Hoist controls

Reversing Plugging control for bridge and trolley (travel) drives

Meets NEMA Service Classification I

Available in NEMA contactor sizes 2 through 6

Numerous modifications available

Uses Class 8503 Type M Line-ARCreg contactors static timers

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

Meet OSHAamp NEC requirements for AC

Available in continuous ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by

Mechanical amp electrical interlocks prevent switch

CLASS 6170 YOUNGSTOWNreg

HOIST POWER LIMIT SWITCHES

Final safety limits for hoist upper travel

Interrupts motor power directly

Available in ratings up to 500HP at 230VDC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER

FRONTLINEreg AC CRANE CONTROL

ated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Corrosion resistant pins are standard on all brake sizes

andard on 19rdquo 23rdquo and 30rdquo brake sizes

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

ated and suitable for all crane classes

travel) drives

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000 ft-lbs respectively

Stopping torque ratings up to 300 850 and 1500 ft-lbs respectively

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL

Current Brake CONTRA-TORQUEreg AC Dynamic Lowering

bridge and trolley (travel) drives

Available in NEMA contactor sizes 2 through 6 through 300HP for single or multiple motors

contactors static timers and frequency relays for acceleration

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

crane disconnect switch

ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by the enclosure handle

Mechanical amp electrical interlocks prevent switch operation with handle in the OFF position

HOIST POWER LIMIT SWITCHES

to 500HP at 230VDC or up to 400HP at 460VAC and 550VAC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on-line at wwwECandMnet

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER MILL DUTY CONTROL COMPONENTS27

CLASS

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

FRONTLINE

28

CLASS

FRONTLINEreg AC CRANE CONTROL

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

copyCopyright The Electric Controller and Manufacturing Company LLCPrinted in the USA

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

September 2008

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

copyCopyright The Electric Controller and Manufacturing Company LLC 2007

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

Page 8: Ac Crane Control

FRONTLINE

8

CLASS

REVERSING PLUGGINGClass 6426 controllers are recommended for used withThe hoist controllers are of the reversing hoist type and are used on cranes with mechanical load brakes Thereversing plugging type Both the hoist and the travel controlleroperated ac brakes

The standard single motor reversing hoist controller consists of equipment for a reversing plugging controllerfor plugging (PR)

BRIDGE OR TROLLEY SE

The standard single motor reversing controller consists of

1mdashTwo pole control molded case switch (CMCS)1mdashThree pole magnetic main line circuit breaker with padlock clip

(LCB)2mdashType M two-pole contactors with mechanical interlock1mdashType M two-pole main contactor (M)4 or 5 or 6Type M two-pole acceleration contactors (including one

for plugging) (P 1A 2A 3A 4A 5A 6A)3 or 4 or 5Type ST1 static acceleration timers

(1AR 2AR 3AR 4AR 5AR)1mdashType SZF frequency relay for plugging (PR)1mdash460380230 to 255 volt fused control circuit transformer

(CTR)1mdashControl Circuit Rectifier (RECT)1mdashType KFO under voltage relay (UV)3mdashType AO magnetic inverse time overload relays

(1OslashL 2OslashL 3OslashL)

1mdashSZF power loss protection relay circuit(SPR 2RECT 2MOV 2RES)

The standard duplex reversing plugging controller consists of theequipment for a single motor controller with the exceptionfollowing equipment is added4 or 5mdashType M two-pole acceleration contactors

(2P 21A 22A 23A 24A)3mdashType AO magnetic inverse time overload relays

(4OslashL 5OslashL 6OslashL)

Volts5060Hz

CraneRating

NEMAContactor

Size

MaxAmperes

MaxHp

Primary Secondary

Primary Secondary

380

67 67 30 2 2133 133 60 3 3200 200 100 4 4400 400 150 5 5400 400 200 5 5

460

67 67 40 2 2133 133 80 3 3200 200 125 4 4400 400 200 5 5400 400 300 5 5

380

67 67 30 2 2133 133 60 3 2200 200 100 4 3400 400 150 5 4400 400 200 5 5

460

67 67 40 2 2133 67 80 3 2200 133 120 4 3400 200 200 5 4400 400 300 5 5

Select controller based on motor horsepower and rated primary and secondary current FordiamsPrice is for single motor reversing plugging or reversing hoist For reversing hoist change theThese controllers have 6 speed points available but are used with 5point master switches the last acceleration point beingThese controllers have seven speed points available but are used with 6point master swit

ORDERING INFORMATION REQUIRED See Page 23MODIFICATIONS See Page 24

CLASS

FRONTLINEreg AC CRANE CONTROL

REVERSING PLUGGING CONTROLfor used with ac wound rotor motor on hoist and travel drives of general-purpose

The hoist controllers are of the reversing hoist type and are used on cranes with mechanical load brakes The travel panels are of thecontrollers are arranged for use with rectifier operated dc shunt brakes or solenoid

HOIST SERVICEThe standard single motor reversing hoist controller consists of equipment for a reversing plugging controller but without

BRIDGE OR TROLLEY SERVICE

The standard single motor reversing controller consists of

Three pole magnetic main line circuit breaker with padlock clip

contactors with mechanical interlock (F R)

including one

volt fused control circuit transformer

rsing plugging controller consists of thefor a single motor controller with the exception that the

MILL DUTY CLASS 8503 TYPE M CLAPPER TYPECONTACTORS

CLASS 8501 TYPE SZF FREQUENCY ACCELERATIONRELAYS FOR PLUGGING

CLASS 7001 TYPE ST1 STATICACCELERATION TIMERS

NoSpeedPoints

OpenType

General PurposeEnclosure NEMAType 1 Gasketed

Outdoor EnclosureNEMA Type 3R

Secondary

SINGLE MOTOR CONTROL

5 DOR76 DSR76 DWR765 EOR76 ESR76 EWR765 FOR76 FSR76 FWR765 GOR76 GSR76 GWR766 GOR96 GSR96 GWR96

5 DOR76 DSR76 DWR765 EOR76 ESR76 EWR765 FOR76 FSR76 FWR765 GOR76 GSR76 GWR766 GOR96 GSR96 GWR96

DUPLEX MOTOR CONTROL5 DOR86 DSR86 DWR865 EOR86 ESR86 EWR865 FOR86 FSR86 FWR865 GOR86 GSR86 GWR865 GOR106 GSR106 GWR106

5 DOR86 DSR86 DWR865 EOR86 ESR86 EWR865 FOR86 FSR86 FWR865 GOR86 GSR86 GWR865 GOR106 GSR106 GWR106

Select controller based on motor horsepower and rated primary and secondary current For explanation refer to Controller Ratings section of Application DataPrice is for single motor reversing plugging or reversing hoist For reversing hoist change the R in the type to an H

These controllers have 6 speed points available but are used with 5point master switches the last acceleration point being relay controlledThese controllers have seven speed points available but are used with 6point master switches the last acceleration point being relay controlled

See Page 23See Page 24

APPLICATION INFORMATIONDIMENSIONAL INFORMATION

September 2008

purpose overhead cranespanels are of the

r operated dc shunt brakes or solenoid

out SZF frequency relay

MILL DUTY CLASS 8503 TYPE M CLAPPER TYPE

CLASS 8501 TYPE SZF FREQUENCY ACCELERATION

STATICACCELERATION TIMERS

DusttightEnclosure NEMA

Type 12

DAR76EAR76FAR76GAR76GAR96

DAR76EAR76FAR76GAR76GAR96

DAR86EAR86FAR86GAR86

GAR106

DAR86EAR86FAR86GAR86

GAR106Application Data

APPLICATION INFORMATION See Pages 23-25DIMENSIONAL INFORMATION See Pages 10amp11

September 2008 FRONTLINE

REVERSING PLUGGING E

FRONTLINEreg AC CRANE CONTROL

REVERSING PLUGGING ELEMENTARY DIAGRAM

AC CRANE CONTROL

9

CLASS

LEMENTARY DIAGRAM

CLASS

FRONTLINE

10

CLASS

CLASS

APPROXIMATE DIMENSIOSINGLE AND DUPLEX MOTOR CONTROL STANDA

OPEN TYPE

MAXIMUM HP

460V 380VHin

mm

HOISTClasses6420 amp6422

40 3048

1219

80 6048

1219

125 10048

1219200 150

NOT A300 200

HOISTClasses6421 amp6426

ampBridge orTrolleyClass6426

40 3048

1219

80 6048

1219

125 10048

1219

NOT A200 150

300 200

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMENSIONS AND WEIGHTSMOTOR CONTROL STANDARD CONTROLLERS

ENCLOSED TYPE

OPEN TYPE ENCLOSED TYPE

Win

mm

Cin

mm

NETWeightLbskg

Win

mm

Cin

mm

SINGLE MOTOR CONTROL69

175312305

52523848

121969

175369

175312305

70031848

121969

175369

175312305

70031848

121969

1753

NOT AVAILABLE IN STANDARD DIMENSIONS SEE NARROW WIDTH DIM

DUPLEX MOTOR CONTROL69

175312305

50022748

121969

175369

175312305

70031848

121969

175369

175312305

70031848

121969

1753

NOT AVAILABLE IN STANDARD DIMENSIONS SEE NARROW WIDTH DIM

September 2008

RD CONTROLLERS

ENCLOSED TYPE

ENCLOSED TYPE

Din

mm

NETWeightLbskg

15381

750341

15381

900409

15381

900409

SEE NARROW WIDTH DIMENSIONS

15381

700318

15381

900409

15381

900409

SEE NARROW WIDTH DIMENSIONS

September 2008 FRONTLINE

APPROXIMATESINGLE AND DUPLEX

OPEN TYPE

DRIVE

MAXIMUM HP

460V 380Vmm

HOIST(All Classes)and Bridge

Trolley

40 30

80 601727

125 1001727

200 1501981

300 2001981

CLASS 6426Bridge and

Trolleyonly

40 30

80 601727

125 1001727

200 150

300 200

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMENSIONS AND WEIGHTSAND DUPLEX MOTOR CONTROL NARROW WIDTH CONTR

ENCLOSED TYPE

OPEN TYPE

Hin

mm

Win

mm

Cin

mm

NETWeightLbskg

Hin

mm

SINGLE MOTOR CONTROL- - - - -

681727

631600

12305

70031868

172768

172763

160012305

70031868

172778

198177

195615381

130059078

198178

198177

195615381

130059078

1981DUPLEX MOTOR CONTROL

- - - - -68

172775

190512305

100045468

172768

172775

190512305

100045468

1727

NOT AVAILABLE IN STANDARD DIMENSIONS SEE NARROW WIDTH DIM

AC CRANE CONTROL

11

CLASS

CLASS6420642164226426CONTROLLERS

ENCLOSED TYPE

ENCLOSED TYPE

Win

mm

Din

mm

NETWeightLbskg

- -63

160015381

900409

631600

15381

900409

771956

17482

1800817

771956

17482

1800817

- -75

190515381

1400635

751905

15381

1400635

SEE NARROW WIDTH DIMENSIONS

FRONTLINE

12

CLASS

WITH SQUARE DGENERAL INFORMATION

Class 6435 controllers are recommended for used withThe hoist controllers are of the reversing dynamic lowering type whenhoist type when used on cranes with mechanical load brakestravel controls are designed for use with rectifier operated dc brakes or solenoid operated ac brakes

The standard single motor reversing hoist controller consists of equipment for afrequency relay plugging The standard single motor reversing dynamic lowering hoist controller consists of the equipment for a single motorreversing plugging controller with one additional type S three pole contactorprovided (CR) and a pneumatic timing delay is deleted (IA)NOTE DUPLEX CONTROLLERS ARE NOT AVAILABLE

The standard single motor reversing plugging controller consistsof

1mdashTwo pole control molded case switch (MCB)1mdashThree pole magnetic main line circuit breaker with padlock clip

(LCB)2mdashType S three-pole directional contactors with mechanical

interlock (F R)3mdashType S three-pole acceleration contactors (including one for

plugging) (1A 2A P)2mdashPneumatic timing acceleration units (1A 2A)1mdashType SZF frequency relay for plugging (PR)1mdash460230 to 115 volt fused control circuit transformer (1mdashControl Circuit Rectifier (RECT)1mdashUndervoltage relay (UV)3mdashMagnetic inverse time overload relays (1OslashL 2OslashL 3OslashL1mdashSZF power loss protection relay circuit (SPR 2RECT 2MOV2RES)

Volts5060Hz

CraneRating

ContactorMaxAmperes

MaxHp

Primary SecondaryREVERSING AC

38067 100 30133 199 60

46067 100 40133 199 80

38067 100 30133 199 60

46067 100 40133 199 80

REVESING PLUGGING BRIDGE OR TROLLEY CONTROL

38067 100 30133 199 60

46067 100 40133 199 80

Select controller based on horsepower and rated primary and secondary current For

ORDERING INFORMATION REQUIRED

1 Class2 Type3 Motor Horsepower

4 Motor Primary Rated Voltage and Current5 Motor Secondary Rated Voltage and Current6 Controller Modifications Specify Form Numbers

CLASS

FRONTLINEreg AC CRANE CONTROL

SQUARE D CLASS 8502 TYPE S CONTACTORSreg

GENERAL INFORMATIONHOIST SERVICE

controllers are recommended for used with ac wound rotor motor on hoist and travel drives of general-purposedynamic lowering type when used on cranes without mechanical load brakes and are of the reversing

hoist type when used on cranes with mechanical load brakes The travel controllers are of the reversing plugging type Both the hoist and thefor use with rectifier operated dc brakes or solenoid operated ac brakes

BRIDGE OR TROLLEYThe standard single motor reversing hoist controller consists of equipment for a single motor reversing plugging controller

The standard single motor reversing dynamic lowering hoist controller consists of the equipment for a single motorS three pole contactor provided for dynamic lowering (DB) one additional control relay

pneumatic timing delay is deleted (IA)NOTE DUPLEX CONTROLLERS ARE NOT AVAILABLE

controller consists

Three pole magnetic main line circuit breaker with padlock clip

contactors with mechanical

(including one for

5 volt fused control circuit transformer (CTR)

1OslashL 2OslashL 3OslashL)SZF power loss protection relay circuit (SPR 2RECT 2MOV and

CLASS 8502 TYPE S CONTACTORS PNEUMATOC TIMING ACCELERATION CLASS 8501 TYPE SZF FREQUENCY RELAY FOR

PLUGGING

NEMAContactor

Size

NoSpeedPoints

OpenType

General PurposeEnclosure NEMAType 1 Gasketed

REVERSING AC DYNAMIC LOWERING HOIST CONTROL2 4 DOH71 DSH713 4 EOH71 ESH712 4 DOH71 DSH713 4 EOH71 ESH71REVERSING HOIST CONTROL2 4 DOH76 DSH763 4 EOH76 ESH762 4 DOH76 DSH763 4 EOH76 ESH76

REVESING PLUGGING BRIDGE OR TROLLEY CONTROL2 4 DOR76 DSR763 4 EOR76 ESR762 4 DOR76 DSR763 4 EOR76 ESR76

Select controller based on horsepower and rated primary and secondary current For explanation refer to Controller Ratings section of

ORDERING INFORMATION REQUIRED

4 Motor Primary Rated Voltage and Current5 Motor Secondary Rated Voltage and Current6 Controller Modifications Specify Form Numbers

7 Resistors Services Classification8 Master Switch Type and Form Number

September 2008

purpose overhead cranesout mechanical load brakes and are of the reversing

versing plugging type Both the hoist and the

reversing plugging controller but without SZFThe standard single motor reversing dynamic lowering hoist controller consists of the equipment for a single motor

one additional control relay

LASS 8502 TYPE S CONTACTORSPNEUMATOC TIMING ACCELERATION

FREQUENCY RELAY FOR

Outdoor EnclosureNEMA Type 3R

DWH71EWH71DWH71EWH71

DWH76EWH76DWH76EWH76

DWR76EWR76DWR76EWR76

refer to Controller Ratings section of Application Data

7 Resistors Services Classification8 Master Switch Type and Form Number

September 2008 FRONTLINE

WITH CLASSTRAVEL CONTROL

FRONTLINEreg AC CRANE CONTROL

WITH CLASS SQUARE D 8502 TYPE S CONTACTOTRAVEL CONTROL ELEMENTARY DIAGRAM

AC CRANE CONTROL

13

CLASS

8502 TYPE S CONTACTORS

CLASS

FRONTLINE

14

CLASS

WITH CLASS SQUARE DREVERSING HOIST

CLASS

FRONTLINEreg AC CRANE CONTROL

SQUARE D 8502 TYPE S CONTACTORSREVERSING HOIST ELMENTARY DIAGRAM

September 2008

September 2008 FRONTLINE

WITH CLASS SQUARE DDYNAMIC LOWERING HOI

FRONTLINEreg AC CRANE CONTROL

WITH CLASS SQUARE D 8502 TYPE S CONTACTODYNAMIC LOWERING HOIST ELEMENTARY DIAGRAM

AC CRANE CONTROL

15

CLASS

8502 TYPE S CONTACTORSDIAGRAM

CLASS

FRONTLINE

16

CLASS

APPROXIMATE DIMENSIOCLASS 8502 TYPE S CO

OPEN TYPE

DriveMaximum

HP(Volts)

Open Type

Hin

mm

Win

mm

Hoist orTravel

20(380)

401016

24607

40(460)

401016

24607

40(380)

401016

30762

80(460)

401016

30762

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMENSIONS AND WEIGHTSCLASS 8502 TYPE S CONTACTORS

ENCLOSED TYPE

Open Type Enclosed Type

Cin

mm

NetWeightlbskg

Hin

mm

Win

mm

85216

1506842

106730762

85216

1506842

106730762

10254

2009142

106736914

10254

2009142

106736914

September 2008

ENCLOSED TYPE

Enclosed Type

Din

mm

NetWeightlbskg

15381

300136

15381

300136

15381

385175

15381

385175

September 2008 FRONTLINE

A set of TABWELDreg resistors are required forapplications

RESISTOR APPLICATION

For resistors mounted in racks unwired ndash refer to Class 6715

Class 151 and 152 is recommended for light crane duty

Class 161 and 162 is recommended for standard duty

Class 171 and172 is recommended for severe duty

For explanation of NEMA resistor classifications

CLASS 6715 RESISTORS

To order an AC acceleration resistor set for use with duplex Cpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V andat 67A

Controller Class EnclosureMotorRating

ControlScheme

Code Type Code Code

6420 A0None N

ldquoHrdquo(HP)

6421 A16422 A2

Open O6426 A6

Hoist6435

A7Nema

1G

ldquoKrdquo(kw)

Travel6435

A8Nema

3RW

CustomerDesign

A99NemaScreenCovers

C

NEMA ClassSpeed Points

System VoltageMotor Rated Voltage

Class 6715

Controller TypeEnclosure

Motor Power

Motor ConfigurationRotor Volts

Rotor Amps

FRONTLINEreg AC CRANE CONTROL

SELECTION AND APPLICATIONe required for each AC motor control The following table is for selecting resistor for all AC motor control

RESISTOR APPLICATION

refer to Class 6715

Class 151 and 152 is recommended for light crane duty

Class 161 and 162 is recommended for standard duty

Class 171 and172 is recommended for severe duty

For explanation of NEMA resistor classifications ndash refer to Class 6715

CLASS

CLASS 6715 RESISTORS SELECTION TABLE

EXAMPLE AC RESISTOR SETTo order an AC acceleration resistor set for use with duplex CONTRA-TORQUE hoist (2 motors in parallel) NEMA 161 duty cycle 5 speedpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V and

CLASS 6715 RESISTOR SELECTION TABLE

NEMA DUTYSpeedPoints

NO

SystemVoltage

MotorRated

Voltage

Class Code Code V Code V Code

151 A3 208 2 208 2152 B

161 C

162 D4 380 3 380 3171 E

172 F91 G

5460 4 460 4

92 H

CustomerDesign

CS 575 5 575 56

4 4A2 G 37K C 5Class 6715

AC CRANE CONTROL

17

CLASS

The following table is for selecting resistor for all AC motor control

6715

hoist (2 motors in parallel) NEMA 161 duty cycle 5 speedpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V and rotor amps

MotorConfiguration

Ro

tor

Ro

tor

Code Type Code

Simplex S

Vo

lts

Am

psDuplex D

Quadruplex Q

4 D 350V 67A

CLASS

FRONTLINE

18

CLASS

APPROXIMATE NUMBER OCLASS 6715 TABWELD R

This tabulation is based on ECampM resistor designs for use with Class 6420 6421 6422 6426 controllerstabulation is for typical drive loading and for motors with standard NEMA secondary values of voltage andconsult factory with actual motor data

Max HPRating Single

Motor

6420Hoist

161 171 152

5 2 2 1

7 12 2 2 1

10 2 2 1

15 2 3 2

20 3 3 2

25 2 3 2

30 3 3 2

40 3 4 2

50 4 6 2

60 4 6 3

75 6 12 4

100 7 9 4

125 8 12 6

150 12 15 6

200 12 18 9

250 12 21 9

This tabulation is based on ECampM resistor designs for use with Class 6435drive loading and for motors with standard NEMA secondary values of voltage and

MaximumHP

HoistDynamic Lowering

NEMA Class152 162

5 1 175 1 110 1 215 2 220 2 225 2 330 2 340 3 350 3 460 3 475 4 6

NEMA SERVICE CLASSIF

Standard 6435 controllers meet the requirements of NEMA Services Crequirements of NEMA service classifications I (CMAA Sspeed point modification Form M3

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE NUMBER OF SEPARATELY MOUNTED STANDARSCLASS 6715 TABWELD RESISTOR SECTIONS (265rdquo LONG)

resistor designs for use with Class 6420 6421 6422 6426 controllers and is for estimatetabulation is for typical drive loading and for motors with standard NEMA secondary values of voltage and current For act

6421Hoist

6422Hoist

162 172 161 171 152

1 1 2 2 1

1 2 2 2 1

2 2 3 3 1

2 2 3 4 2

2 2 4 5 2

2 3 4 6 2

2 3 5 7 2

2 3 6 7 3

2 4 7 9 3

3 4 8 9 3

4 6 9 13 4

5 7 12 18 4

6 9 14 21 7

6 9 18 30 9

9 12 24 36 9

12 15 30 42 12

r designs for use with Class 6435 controller and is for estimate only This tabulation is fordrive loading and for motors with standard NEMA secondary values of voltage and current For actual quantities consult factory

HoistReversing

TravelReverse Plugging

NEMA Class NEMA Class152 162 1521 1 11 1 11 1 11 2 11 2 22 3 22 3 33 3 33 4 33 4 44 6 4

NEMA SERVICE CLASSIFICATIONS

meet the requirements of NEMA Services Classification II (CMAA service classifications A2 and B) to meet theervice classifications I (CMAA Service Classifications A1 C D E and F) the controller must be priced with the 5

September 2008

STANDARS

estimate only Thiscurrent For actual quantities

6426Hoist Bridge or Trolley

162 172

1 1

1 1

1 2

2 2

2 2

2 3

3 3

3 4

4 4

4 4

4 5

6 9

9 9

9 12

12 15

15 18

This tabulation is for typicalFor actual quantities consult factory

TravelReverse Plugging

NEMA Class162

11222334456

lassification II (CMAA service classifications A2 and B) to meet theE and F) the controller must be priced with the 5th

September 2008 FRONTLINE

MASTER SWITCHES AND

Class 9004 Type VGMaster Switch

CLASS 9004 VM OR CM

Control Class Speed Points

6420556

642156

642256

6426556

Motion Speed PointsHoist

(Dynamic Lowering)45

Hoist(Reversing)

45

Travel(Reverse Plugging)

45

Refer to Class 9004 catalog for more information

FRONTLINEreg AC CRANE CONTROL

GENERAL INFORMATIONMASTER SWITCHES AND MODIFICATIONS

Class 9004 Type CGMaster Switch

CLASS 9004 VM OR CM NEMA 1 ENCLOSED

oints Form VM TYPE

C1VG9

VG12

B1VG12VG16

D1VG12VG16

A1VG9

VG12

CONTROL 6435Form MA VM

A2AG9 VG9AG9 VG9

A3AG6 VG6AG9 VG9

A3AG6 VG6AG9 VG9

Refer to Class 9004 catalog for more information

AC CRANE CONTROL

19

CLASS

Class 9004 Type CGMaster Switch

CM TYPE

CG12CG12CG12CM16CG12CG16

CG12CG12

VM CMVG9 CG8VG9 CG12VG6 CG6VG9 CG8VG6 CG6VG9 CG8

CLASS

FRONTLINE

20

CLASS

GENERALMANUAL MAGNETIC DISC

The manual magnetic disconnect switch is used for protecting electrical crane circuits exOHSA requirements for a crane disconnect switchThe standard disconnect switch consists of

3mdashClass 8503 Type M form Y781 (with silver faced power contacttips) SPNO contactors The contactors are mechanically tiedOne normally open and one normally closed electricalinterlocks are included for indicating lights

1mdashTwo pole control molded case switch with padlock clip (1mdash460380230 to 255 volt fused control circuit transformer (1mdashIntermediate relay (CR)1mdashClass 9999AI1 Arc Suppressor

Volts5060Hz

NEMAContactor

Size

MaxAmperes

380or

460

4 1505 3006 6008 1350

Form

F30A

3 Main Line Power FusesStart-Stop Push Button

X11Additional Control CircuitNC interlocks can be added

A3 ldquoOnOffrdquo PushbuttonP1 Red ldquoOnrdquo Pilot LightP2 Green ldquoOffrdquo Pilot LightT12 200VA Additional Transformer Capacity

Class L fuse mounting is standard Customer

PILOT DEVICESThe pilot devices should be selected so the current rating is adequate for controlling the disconnect switch For coil9998 Coil Data catalog sheets An arc inhibitor may be required depending upon the ra

DISCONNEWhen applied to cranes the continuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated currentrequired by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

ORDERING INFORMATION REQUIRED1 Class2 Type3 Voltage4 Controller Modifications Specify Form

CLASS

FRONTLINEreg AC CRANE CONTROL

GENERAL INFORMATIONMANUAL MAGNETIC DISCONNECTS SWITCHES

etic disconnect switch is used for protecting electrical crane circuits except lifting magnet circuits The disconnect meets

ype M form Y781 (with silver faced power contacttips) SPNO contactors The contactors are mechanically tiedOne normally open and one normally closed electrical

case switch with padlock clip (CMCS)volt fused control circuit transformer (CTR)

CAM OPERATOR PREVENTSFROM CLOSING WHEN HANDLE IS IN OFFPOSITION

CONTACTORS OPERATED REMOTELY OR BYHANDLE ON THE ENCLOSURE

Amperes

Enclosures

General PurposeNEMA Type 1 gasketed

Dusttight NEMA Type 12Outdoor NEMA Type 3R

MFS12 MFA12MGS12 MGA12MHS12 MHA12MKS12 MKA12

MODIFICATIONSDescription

Main Line Power FusesStop Push Button

Additional Control Circuit Interlocks A maximum of 4 NONC interlocks can be added

Offrdquo PushbuttonRed ldquoOnrdquo Pilot LightGreen ldquoOffrdquo Pilot Light200VA Additional Transformer Capacity

Class L fuse mounting is standard Customer is to supply fuse rating

PILOT DEVICES SELECTIONThe pilot devices should be selected so the current rating is adequate for controlling the disconnect switch For coil currents9998 Coil Data catalog sheets An arc inhibitor may be required depending upon the ratings of the pilot device

DISCONNECT SWITCH SELECTIONcontinuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated current

required by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

September 2008

t lifting magnet circuits The disconnect meets

AM OPERATOR PREVENTS CONTACTORFROM CLOSING WHEN HANDLE IS IN OFF

ORS OPERATED REMOTELY OR BYHANDLE ON THE ENCLOSURE

currents refer to Class

continuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated currentrequired by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

September 2008 FRONTLINE

MANUAL MAGNETIC DISC

FRONTLINEreg AC CRANE CONTROL

MANUAL MAGNETIC DISCONNECT ELEMENTARY DIAGRA

AC CRANE CONTROL

21

CLASS

AGRAM

CLASS

FRONTLINE

22

CLASS

APPROXIMATE DIMESION

NEMASize

ContinuousAmpereRating A B C D

4 15018457

5127

8203

19483

5 30014356

3589

45114

28711

6 60018457

5127

8203

19483

8 135014356

5127

8203

28712

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMESIONS AND WEIGHTS

D E F G H J K L M

19483

30762

36914

2864727

315800

33838

3589

16229

36914

28711

33838

36914

267678

345876

36914

7178

72183

36914

19483

421067

421067

322818

4351105

451143

3589

10483

421067

28712

57838

441118

363922

345864

36914

70178

59137

741275

September 2008

M N

NetWeight

36914

15381

21096

36914

20508

235107

421067

20508

285130

741275

28508

300138

September 2008 FRONTLINE

MULTIMOTOR DRIVESTwo motors connected in parallel (duplex)control primary equipment and two sets of motor controlsecondary equipment are required in the controller Two sets ofpower resistors are also required

Four motors connected in parallel (quadruplex)necessary to double the duplex controller price given for twomotors in parallel One set of motor control primary and four setsof motor control secondary equipment are required Four sets opower resistors are required

CONTROLLERSNarrow width controllers ndash Most controllers ara narrow width construction These controllers when compared tostandard controllers are reduced width and increased height Fordetails see controller modifications and controller dimension

CONTROLLER MODIFICAT

Form Description

D6 Motor Isolating Circuit Breakers

B5 Brake Relay Reverse Plugging Controller Only

Y17 Arc Inhibitors Pendant Operated Controller

G95 Miniature Voltmeter Panel Mounted

G91 Miniature Ammeter Panel Mounted

E18 Narrow Width Panel

M24Substitute Type SZF Frequency Relay For ST1 StaticAcceleration Timers

H18Cabinet Space Heater Controlled By Interlock From MContactor

For Duplex Controllers For Duplex controllers multiply price by 2

1 Class2 Type3 Motor Horsepower4 Motor Primary Rated Voltage and Current

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATA

MULTIMOTOR DRIVESTwo motors connected in parallel (duplex) ndash One set of motorcontrol primary equipment and two sets of motor controlsecondary equipment are required in the controller Two sets of

Four motors connected in parallel (quadruplex) ndash It islex controller price given for two

motors in parallel One set of motor control primary and four setsof motor control secondary equipment are required Four sets of

CONTROLLERSMost controllers are also available in

a narrow width construction These controllers when compared tostandard controllers are reduced width and increased height For

see controller modifications and controller dimension

CONTROLLER MStandard controllers come equipped with the components listedSpecial features to be added to standard controllers are identifiedby Form number Most modifications are self

FORM D6 list motor isolation circuit breakers for use on duplexcontrollers For operation of the drive on one motor the motorline and connect breakers will disconnect one motor from the lineand connect the frequency relays to the power resistors of theother motor The brakes of the motor not in service are stillreleased electrically

FORM G95 lists a 3 frac12rdquo square miniature voltmeter to monitor onephase of motor primary voltage

FORM G9 lists a 3 frac12rdquo square miniature ammeter to monitor onephase of motor primary current Current transformersform are supplied Form G9 for motors above 10 HP20 HP 460 volts

CONTROLLER MODIFICATIONS

Brake Relay Reverse Plugging Controller Only

Arc Inhibitors Pendant Operated Controller

Substitute Type SZF Frequency Relay For ST1 Static

Cabinet Space Heater Controlled By Interlock From M

APPLICATION DATACLASS 6420 EDDYMAG

DYNAMIC MODEL AB-

MOTOR HPRATING

Brake Size

900 RMP Motors

Light DutyServices

SevereDutyServices

7 12 703

10 704

15 704

20 705

25 705

30 705

40 706

50 706

60 706

75 707

100 707

125 707

150 707200 708250 708300 708

ORDERING INFORMATION REQUIRED

5 Motor Secondary Rated Voltage andCurrent6 Controller Modifications Specify FormNumbers

7 Resistors Services Classification8 Master Switch Type and Form Number

AC CRANE CONTROL

23

CLASS

CLASS

CONTROLLER MODIFICATIONSStandard controllers come equipped with the components listedSpecial features to be added to standard controllers are identifiedby Form number Most modifications are self explanatory

list motor isolation circuit breakers for use on duplexcontrollers For operation of the drive on one motor the motorline and connect breakers will disconnect one motor from the lineand connect the frequency relays to the power resistors of the

motor The brakes of the motor not in service are still

lists a 3 frac12rdquo square miniature voltmeter to monitor one

lists a 3 frac12rdquo square miniature ammeter to monitor oneCurrent transformers with this

for motors above 10 HP 230 volt and

PPLICATION DATACLASS 6420 EDDYMAG HOIST

-FLOOR MOUNTED BRAKE

1200 RMP MotorsSevereDutyServices

Light DutyServices

SevereDutyServices

704 703 703

704 703 704

705 704 704

705 704 705

705 705 705

706 705 705

706 705 706

706 706 706

707 706 706

707 706 706

707 707 707

707 707 707

708 707 707708 707 708708 708 708--- 708 708

7 Resistors Services Classification8 Master Switch Type and Form Number

FRONTLINE

24

CLASS

CLASS

CRANE HOOK SPEED VS

CLASS 6421DYNAMIC LO

FIRST

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

O

FSY

NC

HR

ON

OU

SSP

EED

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

SY

NC

HR

ON

OU

SSP

PED

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATACRANE HOOK SPEED VS LOAD PERFORMANCE

CLASS 6420 EDDYMAGreg

CLASS 6421DYNAMIC LOWERING HOIST

FIRST

SECOND

THIRD

FOURTH

FIFTH

FIRST

SECOND

THIRD

FOURTH

FIFTH

40 60 80 100 120 140 160 180

LOAD PERFORMANCE IN OF SYNCHRONOUS SPEED

SECOND

THIRDFOURTH

FIFTH

FIRST

FIRST

SECOND amp THIRD

40 60 80 100 120 140 160 180

LOAD PERFORMANCE IN OF SYNCHRONOUS SPEED

September 2008

200

FIFTH

180 200

September 2008 FRONTLINE

CRANE HOOK SPEEDCLASS 6422 CONTRA

CLASS 6426

SECONDFIRST

FOURTH

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

O

FSY

NC

HR

ON

OU

SSP

EED

FIRST

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

SY

NC

HR

ON

OU

SSP

EED

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATACRANE HOOK SPEED VS LOAD PERFORMANCE

CLASS 6422 CONTRA-TORQUEreg

CLASS 6426 REVERSING HOIST CONTROL(With Mechanical Load Brake)

FIFTH

AUTOMATIC

FOURTH

THIRD

FIRST amp SECOND

SECOND

THIRD

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUS SPEED

SIXTH

SECOND

THIRD

FOURTH

FIFTH

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUSE SPEED

25

CLASS

CLASS

FIFTH

AUTOMATIC

FIRST amp SECOND

180 200

180 200

FRONTLINE

26

CLASS

AC CONTACTOR CONTROL

System AC Contactor Control

Crane Components

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switchradio controlReversing hoistsmechanical load brake gearboxAll other hoist stylesgearbox Best and critical positioning controlrequires E

ResistorsAcceleration resistor setSize based on HP amp duty cycle

Mo

tor

Perf

orm

an

ce

General

Velocity and acceleration is load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

More abrupt speed point

Slowdown

Travel Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

Hoist OFF point slowdown and braking withEddy-Current brakeDB circuitry

OFF Point

Travel No OFF point braking via control

Hoist OFF point braking by Eddybrake CONTRA

Reversing

Travel Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allowsoperation

Hoist Drive is stopped before each changein direction

Power ConsumptionPower dissipated in rotor resistors inspeed points

Component Wear

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Motors Encoders

Requires wound rotor motorNo encoder feedback

Motor blower not typically requiredoperation at reduced motor velocity as fulltorque is not available at zero speed

FRONTLINEreg AC CRANE CONTROL

AC CONTACTOR CONTROL vs DRIVES

AC Contactor Control Variable Frequency Drive

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switch and pendant orradio controlReversing hoists require worm gear ormechanical load brake gearbox

hoist styles require standardgearbox Best and critical positioning control

es Eddy-Current load brake

Inverter-duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limitpendant or radio controlOpen loop hoist controls require worm gear ormechanical load brake gearboxClosed loop hoist controlswith motor encoder feedback

Acceleration resistor set requiredSize based on HP amp duty cycle

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration is load dependantVelocity and acceleration are minimally (open(closed loop) load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

More abrupt speed point transitions Smooth speed point transitions

Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

OFF point slowdown and braking withurrent brake CONTRA-TORQUEreg or

DB circuitry

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

No OFF point braking via control

OFF point braking by Eddy-CurrentCONTRA-TORQUEreg or DB circuitry

OFF point Dynamic Braking (DB)deceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allows reacceleration after relayoperation

Drive is stopped before each changein direction

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speedachieved

Power dissipated in rotor resistors in lowspeed points

Uses less power at reduced velocity and duringacceleration

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Power contactors eliminatedMotor current switched by solidSpare drive recommended

Requires wound rotor motorNo encoder feedback required

Inverter-duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Motor blower not typically required foroperation at reduced motor velocity as fulltorque is not available at zero speed

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and highduty cycles

September 2008

Frequency Drive

duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limit switches master switch

require worm gear ormechanical load brake gearbox

require standard gearbox butwith motor encoder feedback

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration are minimally (open loop) or not(closed loop) load dependant

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

Smooth speed point transitions

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

OFF point Dynamic Braking (DB) with programmabledeceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speed

Uses less power at reduced velocity and during

Power contactors eliminatedMotor current switched by solid-state componentsSpare drive recommended

duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and high

September 2008 FRONTLINE

CLASS 5010 WB DRUM BRAKES

AIST rated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Hold drive stationary when motor is off

Available in 8rdquo to 30rdquo wheel diameters

Torque ratings 100 through 9000 ft-lbs

Corrosion resistant pins are standard on all brake sizes

Grease fittings are standard on 19rdquo 23rdquo and 30rdquo brake sizes

Available with optional self-adjuster

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

AIST rated and suitable for all crane classes

Used on bridge and trolley (horizontal travel) drives

Provide fixed holding torque for parking

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000

Stopping torque ratings up to 300 850 and 1500

Available for AC or DC control systems

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL(Contactor) CONTROLS

Hoist drive styles include Eddy-Current Brakeand Reversing Hoist controls

Reversing Plugging control for bridge and trolley (travel) drives

Meets NEMA Service Classification I

Available in NEMA contactor sizes 2 through 6

Numerous modifications available

Uses Class 8503 Type M Line-ARCreg contactors static timers

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

Meet OSHAamp NEC requirements for AC

Available in continuous ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by

Mechanical amp electrical interlocks prevent switch

CLASS 6170 YOUNGSTOWNreg

HOIST POWER LIMIT SWITCHES

Final safety limits for hoist upper travel

Interrupts motor power directly

Available in ratings up to 500HP at 230VDC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER

FRONTLINEreg AC CRANE CONTROL

ated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Corrosion resistant pins are standard on all brake sizes

andard on 19rdquo 23rdquo and 30rdquo brake sizes

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

ated and suitable for all crane classes

travel) drives

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000 ft-lbs respectively

Stopping torque ratings up to 300 850 and 1500 ft-lbs respectively

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL

Current Brake CONTRA-TORQUEreg AC Dynamic Lowering

bridge and trolley (travel) drives

Available in NEMA contactor sizes 2 through 6 through 300HP for single or multiple motors

contactors static timers and frequency relays for acceleration

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

crane disconnect switch

ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by the enclosure handle

Mechanical amp electrical interlocks prevent switch operation with handle in the OFF position

HOIST POWER LIMIT SWITCHES

to 500HP at 230VDC or up to 400HP at 460VAC and 550VAC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on-line at wwwECandMnet

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER MILL DUTY CONTROL COMPONENTS27

CLASS

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

FRONTLINE

28

CLASS

FRONTLINEreg AC CRANE CONTROL

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

copyCopyright The Electric Controller and Manufacturing Company LLCPrinted in the USA

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

September 2008

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

copyCopyright The Electric Controller and Manufacturing Company LLC 2007

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

Page 9: Ac Crane Control

September 2008 FRONTLINE

REVERSING PLUGGING E

FRONTLINEreg AC CRANE CONTROL

REVERSING PLUGGING ELEMENTARY DIAGRAM

AC CRANE CONTROL

9

CLASS

LEMENTARY DIAGRAM

CLASS

FRONTLINE

10

CLASS

CLASS

APPROXIMATE DIMENSIOSINGLE AND DUPLEX MOTOR CONTROL STANDA

OPEN TYPE

MAXIMUM HP

460V 380VHin

mm

HOISTClasses6420 amp6422

40 3048

1219

80 6048

1219

125 10048

1219200 150

NOT A300 200

HOISTClasses6421 amp6426

ampBridge orTrolleyClass6426

40 3048

1219

80 6048

1219

125 10048

1219

NOT A200 150

300 200

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMENSIONS AND WEIGHTSMOTOR CONTROL STANDARD CONTROLLERS

ENCLOSED TYPE

OPEN TYPE ENCLOSED TYPE

Win

mm

Cin

mm

NETWeightLbskg

Win

mm

Cin

mm

SINGLE MOTOR CONTROL69

175312305

52523848

121969

175369

175312305

70031848

121969

175369

175312305

70031848

121969

1753

NOT AVAILABLE IN STANDARD DIMENSIONS SEE NARROW WIDTH DIM

DUPLEX MOTOR CONTROL69

175312305

50022748

121969

175369

175312305

70031848

121969

175369

175312305

70031848

121969

1753

NOT AVAILABLE IN STANDARD DIMENSIONS SEE NARROW WIDTH DIM

September 2008

RD CONTROLLERS

ENCLOSED TYPE

ENCLOSED TYPE

Din

mm

NETWeightLbskg

15381

750341

15381

900409

15381

900409

SEE NARROW WIDTH DIMENSIONS

15381

700318

15381

900409

15381

900409

SEE NARROW WIDTH DIMENSIONS

September 2008 FRONTLINE

APPROXIMATESINGLE AND DUPLEX

OPEN TYPE

DRIVE

MAXIMUM HP

460V 380Vmm

HOIST(All Classes)and Bridge

Trolley

40 30

80 601727

125 1001727

200 1501981

300 2001981

CLASS 6426Bridge and

Trolleyonly

40 30

80 601727

125 1001727

200 150

300 200

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMENSIONS AND WEIGHTSAND DUPLEX MOTOR CONTROL NARROW WIDTH CONTR

ENCLOSED TYPE

OPEN TYPE

Hin

mm

Win

mm

Cin

mm

NETWeightLbskg

Hin

mm

SINGLE MOTOR CONTROL- - - - -

681727

631600

12305

70031868

172768

172763

160012305

70031868

172778

198177

195615381

130059078

198178

198177

195615381

130059078

1981DUPLEX MOTOR CONTROL

- - - - -68

172775

190512305

100045468

172768

172775

190512305

100045468

1727

NOT AVAILABLE IN STANDARD DIMENSIONS SEE NARROW WIDTH DIM

AC CRANE CONTROL

11

CLASS

CLASS6420642164226426CONTROLLERS

ENCLOSED TYPE

ENCLOSED TYPE

Win

mm

Din

mm

NETWeightLbskg

- -63

160015381

900409

631600

15381

900409

771956

17482

1800817

771956

17482

1800817

- -75

190515381

1400635

751905

15381

1400635

SEE NARROW WIDTH DIMENSIONS

FRONTLINE

12

CLASS

WITH SQUARE DGENERAL INFORMATION

Class 6435 controllers are recommended for used withThe hoist controllers are of the reversing dynamic lowering type whenhoist type when used on cranes with mechanical load brakestravel controls are designed for use with rectifier operated dc brakes or solenoid operated ac brakes

The standard single motor reversing hoist controller consists of equipment for afrequency relay plugging The standard single motor reversing dynamic lowering hoist controller consists of the equipment for a single motorreversing plugging controller with one additional type S three pole contactorprovided (CR) and a pneumatic timing delay is deleted (IA)NOTE DUPLEX CONTROLLERS ARE NOT AVAILABLE

The standard single motor reversing plugging controller consistsof

1mdashTwo pole control molded case switch (MCB)1mdashThree pole magnetic main line circuit breaker with padlock clip

(LCB)2mdashType S three-pole directional contactors with mechanical

interlock (F R)3mdashType S three-pole acceleration contactors (including one for

plugging) (1A 2A P)2mdashPneumatic timing acceleration units (1A 2A)1mdashType SZF frequency relay for plugging (PR)1mdash460230 to 115 volt fused control circuit transformer (1mdashControl Circuit Rectifier (RECT)1mdashUndervoltage relay (UV)3mdashMagnetic inverse time overload relays (1OslashL 2OslashL 3OslashL1mdashSZF power loss protection relay circuit (SPR 2RECT 2MOV2RES)

Volts5060Hz

CraneRating

ContactorMaxAmperes

MaxHp

Primary SecondaryREVERSING AC

38067 100 30133 199 60

46067 100 40133 199 80

38067 100 30133 199 60

46067 100 40133 199 80

REVESING PLUGGING BRIDGE OR TROLLEY CONTROL

38067 100 30133 199 60

46067 100 40133 199 80

Select controller based on horsepower and rated primary and secondary current For

ORDERING INFORMATION REQUIRED

1 Class2 Type3 Motor Horsepower

4 Motor Primary Rated Voltage and Current5 Motor Secondary Rated Voltage and Current6 Controller Modifications Specify Form Numbers

CLASS

FRONTLINEreg AC CRANE CONTROL

SQUARE D CLASS 8502 TYPE S CONTACTORSreg

GENERAL INFORMATIONHOIST SERVICE

controllers are recommended for used with ac wound rotor motor on hoist and travel drives of general-purposedynamic lowering type when used on cranes without mechanical load brakes and are of the reversing

hoist type when used on cranes with mechanical load brakes The travel controllers are of the reversing plugging type Both the hoist and thefor use with rectifier operated dc brakes or solenoid operated ac brakes

BRIDGE OR TROLLEYThe standard single motor reversing hoist controller consists of equipment for a single motor reversing plugging controller

The standard single motor reversing dynamic lowering hoist controller consists of the equipment for a single motorS three pole contactor provided for dynamic lowering (DB) one additional control relay

pneumatic timing delay is deleted (IA)NOTE DUPLEX CONTROLLERS ARE NOT AVAILABLE

controller consists

Three pole magnetic main line circuit breaker with padlock clip

contactors with mechanical

(including one for

5 volt fused control circuit transformer (CTR)

1OslashL 2OslashL 3OslashL)SZF power loss protection relay circuit (SPR 2RECT 2MOV and

CLASS 8502 TYPE S CONTACTORS PNEUMATOC TIMING ACCELERATION CLASS 8501 TYPE SZF FREQUENCY RELAY FOR

PLUGGING

NEMAContactor

Size

NoSpeedPoints

OpenType

General PurposeEnclosure NEMAType 1 Gasketed

REVERSING AC DYNAMIC LOWERING HOIST CONTROL2 4 DOH71 DSH713 4 EOH71 ESH712 4 DOH71 DSH713 4 EOH71 ESH71REVERSING HOIST CONTROL2 4 DOH76 DSH763 4 EOH76 ESH762 4 DOH76 DSH763 4 EOH76 ESH76

REVESING PLUGGING BRIDGE OR TROLLEY CONTROL2 4 DOR76 DSR763 4 EOR76 ESR762 4 DOR76 DSR763 4 EOR76 ESR76

Select controller based on horsepower and rated primary and secondary current For explanation refer to Controller Ratings section of

ORDERING INFORMATION REQUIRED

4 Motor Primary Rated Voltage and Current5 Motor Secondary Rated Voltage and Current6 Controller Modifications Specify Form Numbers

7 Resistors Services Classification8 Master Switch Type and Form Number

September 2008

purpose overhead cranesout mechanical load brakes and are of the reversing

versing plugging type Both the hoist and the

reversing plugging controller but without SZFThe standard single motor reversing dynamic lowering hoist controller consists of the equipment for a single motor

one additional control relay

LASS 8502 TYPE S CONTACTORSPNEUMATOC TIMING ACCELERATION

FREQUENCY RELAY FOR

Outdoor EnclosureNEMA Type 3R

DWH71EWH71DWH71EWH71

DWH76EWH76DWH76EWH76

DWR76EWR76DWR76EWR76

refer to Controller Ratings section of Application Data

7 Resistors Services Classification8 Master Switch Type and Form Number

September 2008 FRONTLINE

WITH CLASSTRAVEL CONTROL

FRONTLINEreg AC CRANE CONTROL

WITH CLASS SQUARE D 8502 TYPE S CONTACTOTRAVEL CONTROL ELEMENTARY DIAGRAM

AC CRANE CONTROL

13

CLASS

8502 TYPE S CONTACTORS

CLASS

FRONTLINE

14

CLASS

WITH CLASS SQUARE DREVERSING HOIST

CLASS

FRONTLINEreg AC CRANE CONTROL

SQUARE D 8502 TYPE S CONTACTORSREVERSING HOIST ELMENTARY DIAGRAM

September 2008

September 2008 FRONTLINE

WITH CLASS SQUARE DDYNAMIC LOWERING HOI

FRONTLINEreg AC CRANE CONTROL

WITH CLASS SQUARE D 8502 TYPE S CONTACTODYNAMIC LOWERING HOIST ELEMENTARY DIAGRAM

AC CRANE CONTROL

15

CLASS

8502 TYPE S CONTACTORSDIAGRAM

CLASS

FRONTLINE

16

CLASS

APPROXIMATE DIMENSIOCLASS 8502 TYPE S CO

OPEN TYPE

DriveMaximum

HP(Volts)

Open Type

Hin

mm

Win

mm

Hoist orTravel

20(380)

401016

24607

40(460)

401016

24607

40(380)

401016

30762

80(460)

401016

30762

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMENSIONS AND WEIGHTSCLASS 8502 TYPE S CONTACTORS

ENCLOSED TYPE

Open Type Enclosed Type

Cin

mm

NetWeightlbskg

Hin

mm

Win

mm

85216

1506842

106730762

85216

1506842

106730762

10254

2009142

106736914

10254

2009142

106736914

September 2008

ENCLOSED TYPE

Enclosed Type

Din

mm

NetWeightlbskg

15381

300136

15381

300136

15381

385175

15381

385175

September 2008 FRONTLINE

A set of TABWELDreg resistors are required forapplications

RESISTOR APPLICATION

For resistors mounted in racks unwired ndash refer to Class 6715

Class 151 and 152 is recommended for light crane duty

Class 161 and 162 is recommended for standard duty

Class 171 and172 is recommended for severe duty

For explanation of NEMA resistor classifications

CLASS 6715 RESISTORS

To order an AC acceleration resistor set for use with duplex Cpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V andat 67A

Controller Class EnclosureMotorRating

ControlScheme

Code Type Code Code

6420 A0None N

ldquoHrdquo(HP)

6421 A16422 A2

Open O6426 A6

Hoist6435

A7Nema

1G

ldquoKrdquo(kw)

Travel6435

A8Nema

3RW

CustomerDesign

A99NemaScreenCovers

C

NEMA ClassSpeed Points

System VoltageMotor Rated Voltage

Class 6715

Controller TypeEnclosure

Motor Power

Motor ConfigurationRotor Volts

Rotor Amps

FRONTLINEreg AC CRANE CONTROL

SELECTION AND APPLICATIONe required for each AC motor control The following table is for selecting resistor for all AC motor control

RESISTOR APPLICATION

refer to Class 6715

Class 151 and 152 is recommended for light crane duty

Class 161 and 162 is recommended for standard duty

Class 171 and172 is recommended for severe duty

For explanation of NEMA resistor classifications ndash refer to Class 6715

CLASS

CLASS 6715 RESISTORS SELECTION TABLE

EXAMPLE AC RESISTOR SETTo order an AC acceleration resistor set for use with duplex CONTRA-TORQUE hoist (2 motors in parallel) NEMA 161 duty cycle 5 speedpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V and

CLASS 6715 RESISTOR SELECTION TABLE

NEMA DUTYSpeedPoints

NO

SystemVoltage

MotorRated

Voltage

Class Code Code V Code V Code

151 A3 208 2 208 2152 B

161 C

162 D4 380 3 380 3171 E

172 F91 G

5460 4 460 4

92 H

CustomerDesign

CS 575 5 575 56

4 4A2 G 37K C 5Class 6715

AC CRANE CONTROL

17

CLASS

The following table is for selecting resistor for all AC motor control

6715

hoist (2 motors in parallel) NEMA 161 duty cycle 5 speedpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V and rotor amps

MotorConfiguration

Ro

tor

Ro

tor

Code Type Code

Simplex S

Vo

lts

Am

psDuplex D

Quadruplex Q

4 D 350V 67A

CLASS

FRONTLINE

18

CLASS

APPROXIMATE NUMBER OCLASS 6715 TABWELD R

This tabulation is based on ECampM resistor designs for use with Class 6420 6421 6422 6426 controllerstabulation is for typical drive loading and for motors with standard NEMA secondary values of voltage andconsult factory with actual motor data

Max HPRating Single

Motor

6420Hoist

161 171 152

5 2 2 1

7 12 2 2 1

10 2 2 1

15 2 3 2

20 3 3 2

25 2 3 2

30 3 3 2

40 3 4 2

50 4 6 2

60 4 6 3

75 6 12 4

100 7 9 4

125 8 12 6

150 12 15 6

200 12 18 9

250 12 21 9

This tabulation is based on ECampM resistor designs for use with Class 6435drive loading and for motors with standard NEMA secondary values of voltage and

MaximumHP

HoistDynamic Lowering

NEMA Class152 162

5 1 175 1 110 1 215 2 220 2 225 2 330 2 340 3 350 3 460 3 475 4 6

NEMA SERVICE CLASSIF

Standard 6435 controllers meet the requirements of NEMA Services Crequirements of NEMA service classifications I (CMAA Sspeed point modification Form M3

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE NUMBER OF SEPARATELY MOUNTED STANDARSCLASS 6715 TABWELD RESISTOR SECTIONS (265rdquo LONG)

resistor designs for use with Class 6420 6421 6422 6426 controllers and is for estimatetabulation is for typical drive loading and for motors with standard NEMA secondary values of voltage and current For act

6421Hoist

6422Hoist

162 172 161 171 152

1 1 2 2 1

1 2 2 2 1

2 2 3 3 1

2 2 3 4 2

2 2 4 5 2

2 3 4 6 2

2 3 5 7 2

2 3 6 7 3

2 4 7 9 3

3 4 8 9 3

4 6 9 13 4

5 7 12 18 4

6 9 14 21 7

6 9 18 30 9

9 12 24 36 9

12 15 30 42 12

r designs for use with Class 6435 controller and is for estimate only This tabulation is fordrive loading and for motors with standard NEMA secondary values of voltage and current For actual quantities consult factory

HoistReversing

TravelReverse Plugging

NEMA Class NEMA Class152 162 1521 1 11 1 11 1 11 2 11 2 22 3 22 3 33 3 33 4 33 4 44 6 4

NEMA SERVICE CLASSIFICATIONS

meet the requirements of NEMA Services Classification II (CMAA service classifications A2 and B) to meet theervice classifications I (CMAA Service Classifications A1 C D E and F) the controller must be priced with the 5

September 2008

STANDARS

estimate only Thiscurrent For actual quantities

6426Hoist Bridge or Trolley

162 172

1 1

1 1

1 2

2 2

2 2

2 3

3 3

3 4

4 4

4 4

4 5

6 9

9 9

9 12

12 15

15 18

This tabulation is for typicalFor actual quantities consult factory

TravelReverse Plugging

NEMA Class162

11222334456

lassification II (CMAA service classifications A2 and B) to meet theE and F) the controller must be priced with the 5th

September 2008 FRONTLINE

MASTER SWITCHES AND

Class 9004 Type VGMaster Switch

CLASS 9004 VM OR CM

Control Class Speed Points

6420556

642156

642256

6426556

Motion Speed PointsHoist

(Dynamic Lowering)45

Hoist(Reversing)

45

Travel(Reverse Plugging)

45

Refer to Class 9004 catalog for more information

FRONTLINEreg AC CRANE CONTROL

GENERAL INFORMATIONMASTER SWITCHES AND MODIFICATIONS

Class 9004 Type CGMaster Switch

CLASS 9004 VM OR CM NEMA 1 ENCLOSED

oints Form VM TYPE

C1VG9

VG12

B1VG12VG16

D1VG12VG16

A1VG9

VG12

CONTROL 6435Form MA VM

A2AG9 VG9AG9 VG9

A3AG6 VG6AG9 VG9

A3AG6 VG6AG9 VG9

Refer to Class 9004 catalog for more information

AC CRANE CONTROL

19

CLASS

Class 9004 Type CGMaster Switch

CM TYPE

CG12CG12CG12CM16CG12CG16

CG12CG12

VM CMVG9 CG8VG9 CG12VG6 CG6VG9 CG8VG6 CG6VG9 CG8

CLASS

FRONTLINE

20

CLASS

GENERALMANUAL MAGNETIC DISC

The manual magnetic disconnect switch is used for protecting electrical crane circuits exOHSA requirements for a crane disconnect switchThe standard disconnect switch consists of

3mdashClass 8503 Type M form Y781 (with silver faced power contacttips) SPNO contactors The contactors are mechanically tiedOne normally open and one normally closed electricalinterlocks are included for indicating lights

1mdashTwo pole control molded case switch with padlock clip (1mdash460380230 to 255 volt fused control circuit transformer (1mdashIntermediate relay (CR)1mdashClass 9999AI1 Arc Suppressor

Volts5060Hz

NEMAContactor

Size

MaxAmperes

380or

460

4 1505 3006 6008 1350

Form

F30A

3 Main Line Power FusesStart-Stop Push Button

X11Additional Control CircuitNC interlocks can be added

A3 ldquoOnOffrdquo PushbuttonP1 Red ldquoOnrdquo Pilot LightP2 Green ldquoOffrdquo Pilot LightT12 200VA Additional Transformer Capacity

Class L fuse mounting is standard Customer

PILOT DEVICESThe pilot devices should be selected so the current rating is adequate for controlling the disconnect switch For coil9998 Coil Data catalog sheets An arc inhibitor may be required depending upon the ra

DISCONNEWhen applied to cranes the continuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated currentrequired by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

ORDERING INFORMATION REQUIRED1 Class2 Type3 Voltage4 Controller Modifications Specify Form

CLASS

FRONTLINEreg AC CRANE CONTROL

GENERAL INFORMATIONMANUAL MAGNETIC DISCONNECTS SWITCHES

etic disconnect switch is used for protecting electrical crane circuits except lifting magnet circuits The disconnect meets

ype M form Y781 (with silver faced power contacttips) SPNO contactors The contactors are mechanically tiedOne normally open and one normally closed electrical

case switch with padlock clip (CMCS)volt fused control circuit transformer (CTR)

CAM OPERATOR PREVENTSFROM CLOSING WHEN HANDLE IS IN OFFPOSITION

CONTACTORS OPERATED REMOTELY OR BYHANDLE ON THE ENCLOSURE

Amperes

Enclosures

General PurposeNEMA Type 1 gasketed

Dusttight NEMA Type 12Outdoor NEMA Type 3R

MFS12 MFA12MGS12 MGA12MHS12 MHA12MKS12 MKA12

MODIFICATIONSDescription

Main Line Power FusesStop Push Button

Additional Control Circuit Interlocks A maximum of 4 NONC interlocks can be added

Offrdquo PushbuttonRed ldquoOnrdquo Pilot LightGreen ldquoOffrdquo Pilot Light200VA Additional Transformer Capacity

Class L fuse mounting is standard Customer is to supply fuse rating

PILOT DEVICES SELECTIONThe pilot devices should be selected so the current rating is adequate for controlling the disconnect switch For coil currents9998 Coil Data catalog sheets An arc inhibitor may be required depending upon the ratings of the pilot device

DISCONNECT SWITCH SELECTIONcontinuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated current

required by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

September 2008

t lifting magnet circuits The disconnect meets

AM OPERATOR PREVENTS CONTACTORFROM CLOSING WHEN HANDLE IS IN OFF

ORS OPERATED REMOTELY OR BYHANDLE ON THE ENCLOSURE

currents refer to Class

continuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated currentrequired by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

September 2008 FRONTLINE

MANUAL MAGNETIC DISC

FRONTLINEreg AC CRANE CONTROL

MANUAL MAGNETIC DISCONNECT ELEMENTARY DIAGRA

AC CRANE CONTROL

21

CLASS

AGRAM

CLASS

FRONTLINE

22

CLASS

APPROXIMATE DIMESION

NEMASize

ContinuousAmpereRating A B C D

4 15018457

5127

8203

19483

5 30014356

3589

45114

28711

6 60018457

5127

8203

19483

8 135014356

5127

8203

28712

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMESIONS AND WEIGHTS

D E F G H J K L M

19483

30762

36914

2864727

315800

33838

3589

16229

36914

28711

33838

36914

267678

345876

36914

7178

72183

36914

19483

421067

421067

322818

4351105

451143

3589

10483

421067

28712

57838

441118

363922

345864

36914

70178

59137

741275

September 2008

M N

NetWeight

36914

15381

21096

36914

20508

235107

421067

20508

285130

741275

28508

300138

September 2008 FRONTLINE

MULTIMOTOR DRIVESTwo motors connected in parallel (duplex)control primary equipment and two sets of motor controlsecondary equipment are required in the controller Two sets ofpower resistors are also required

Four motors connected in parallel (quadruplex)necessary to double the duplex controller price given for twomotors in parallel One set of motor control primary and four setsof motor control secondary equipment are required Four sets opower resistors are required

CONTROLLERSNarrow width controllers ndash Most controllers ara narrow width construction These controllers when compared tostandard controllers are reduced width and increased height Fordetails see controller modifications and controller dimension

CONTROLLER MODIFICAT

Form Description

D6 Motor Isolating Circuit Breakers

B5 Brake Relay Reverse Plugging Controller Only

Y17 Arc Inhibitors Pendant Operated Controller

G95 Miniature Voltmeter Panel Mounted

G91 Miniature Ammeter Panel Mounted

E18 Narrow Width Panel

M24Substitute Type SZF Frequency Relay For ST1 StaticAcceleration Timers

H18Cabinet Space Heater Controlled By Interlock From MContactor

For Duplex Controllers For Duplex controllers multiply price by 2

1 Class2 Type3 Motor Horsepower4 Motor Primary Rated Voltage and Current

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATA

MULTIMOTOR DRIVESTwo motors connected in parallel (duplex) ndash One set of motorcontrol primary equipment and two sets of motor controlsecondary equipment are required in the controller Two sets of

Four motors connected in parallel (quadruplex) ndash It islex controller price given for two

motors in parallel One set of motor control primary and four setsof motor control secondary equipment are required Four sets of

CONTROLLERSMost controllers are also available in

a narrow width construction These controllers when compared tostandard controllers are reduced width and increased height For

see controller modifications and controller dimension

CONTROLLER MStandard controllers come equipped with the components listedSpecial features to be added to standard controllers are identifiedby Form number Most modifications are self

FORM D6 list motor isolation circuit breakers for use on duplexcontrollers For operation of the drive on one motor the motorline and connect breakers will disconnect one motor from the lineand connect the frequency relays to the power resistors of theother motor The brakes of the motor not in service are stillreleased electrically

FORM G95 lists a 3 frac12rdquo square miniature voltmeter to monitor onephase of motor primary voltage

FORM G9 lists a 3 frac12rdquo square miniature ammeter to monitor onephase of motor primary current Current transformersform are supplied Form G9 for motors above 10 HP20 HP 460 volts

CONTROLLER MODIFICATIONS

Brake Relay Reverse Plugging Controller Only

Arc Inhibitors Pendant Operated Controller

Substitute Type SZF Frequency Relay For ST1 Static

Cabinet Space Heater Controlled By Interlock From M

APPLICATION DATACLASS 6420 EDDYMAG

DYNAMIC MODEL AB-

MOTOR HPRATING

Brake Size

900 RMP Motors

Light DutyServices

SevereDutyServices

7 12 703

10 704

15 704

20 705

25 705

30 705

40 706

50 706

60 706

75 707

100 707

125 707

150 707200 708250 708300 708

ORDERING INFORMATION REQUIRED

5 Motor Secondary Rated Voltage andCurrent6 Controller Modifications Specify FormNumbers

7 Resistors Services Classification8 Master Switch Type and Form Number

AC CRANE CONTROL

23

CLASS

CLASS

CONTROLLER MODIFICATIONSStandard controllers come equipped with the components listedSpecial features to be added to standard controllers are identifiedby Form number Most modifications are self explanatory

list motor isolation circuit breakers for use on duplexcontrollers For operation of the drive on one motor the motorline and connect breakers will disconnect one motor from the lineand connect the frequency relays to the power resistors of the

motor The brakes of the motor not in service are still

lists a 3 frac12rdquo square miniature voltmeter to monitor one

lists a 3 frac12rdquo square miniature ammeter to monitor oneCurrent transformers with this

for motors above 10 HP 230 volt and

PPLICATION DATACLASS 6420 EDDYMAG HOIST

-FLOOR MOUNTED BRAKE

1200 RMP MotorsSevereDutyServices

Light DutyServices

SevereDutyServices

704 703 703

704 703 704

705 704 704

705 704 705

705 705 705

706 705 705

706 705 706

706 706 706

707 706 706

707 706 706

707 707 707

707 707 707

708 707 707708 707 708708 708 708--- 708 708

7 Resistors Services Classification8 Master Switch Type and Form Number

FRONTLINE

24

CLASS

CLASS

CRANE HOOK SPEED VS

CLASS 6421DYNAMIC LO

FIRST

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

O

FSY

NC

HR

ON

OU

SSP

EED

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

SY

NC

HR

ON

OU

SSP

PED

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATACRANE HOOK SPEED VS LOAD PERFORMANCE

CLASS 6420 EDDYMAGreg

CLASS 6421DYNAMIC LOWERING HOIST

FIRST

SECOND

THIRD

FOURTH

FIFTH

FIRST

SECOND

THIRD

FOURTH

FIFTH

40 60 80 100 120 140 160 180

LOAD PERFORMANCE IN OF SYNCHRONOUS SPEED

SECOND

THIRDFOURTH

FIFTH

FIRST

FIRST

SECOND amp THIRD

40 60 80 100 120 140 160 180

LOAD PERFORMANCE IN OF SYNCHRONOUS SPEED

September 2008

200

FIFTH

180 200

September 2008 FRONTLINE

CRANE HOOK SPEEDCLASS 6422 CONTRA

CLASS 6426

SECONDFIRST

FOURTH

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

O

FSY

NC

HR

ON

OU

SSP

EED

FIRST

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

SY

NC

HR

ON

OU

SSP

EED

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATACRANE HOOK SPEED VS LOAD PERFORMANCE

CLASS 6422 CONTRA-TORQUEreg

CLASS 6426 REVERSING HOIST CONTROL(With Mechanical Load Brake)

FIFTH

AUTOMATIC

FOURTH

THIRD

FIRST amp SECOND

SECOND

THIRD

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUS SPEED

SIXTH

SECOND

THIRD

FOURTH

FIFTH

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUSE SPEED

25

CLASS

CLASS

FIFTH

AUTOMATIC

FIRST amp SECOND

180 200

180 200

FRONTLINE

26

CLASS

AC CONTACTOR CONTROL

System AC Contactor Control

Crane Components

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switchradio controlReversing hoistsmechanical load brake gearboxAll other hoist stylesgearbox Best and critical positioning controlrequires E

ResistorsAcceleration resistor setSize based on HP amp duty cycle

Mo

tor

Perf

orm

an

ce

General

Velocity and acceleration is load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

More abrupt speed point

Slowdown

Travel Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

Hoist OFF point slowdown and braking withEddy-Current brakeDB circuitry

OFF Point

Travel No OFF point braking via control

Hoist OFF point braking by Eddybrake CONTRA

Reversing

Travel Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allowsoperation

Hoist Drive is stopped before each changein direction

Power ConsumptionPower dissipated in rotor resistors inspeed points

Component Wear

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Motors Encoders

Requires wound rotor motorNo encoder feedback

Motor blower not typically requiredoperation at reduced motor velocity as fulltorque is not available at zero speed

FRONTLINEreg AC CRANE CONTROL

AC CONTACTOR CONTROL vs DRIVES

AC Contactor Control Variable Frequency Drive

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switch and pendant orradio controlReversing hoists require worm gear ormechanical load brake gearbox

hoist styles require standardgearbox Best and critical positioning control

es Eddy-Current load brake

Inverter-duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limitpendant or radio controlOpen loop hoist controls require worm gear ormechanical load brake gearboxClosed loop hoist controlswith motor encoder feedback

Acceleration resistor set requiredSize based on HP amp duty cycle

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration is load dependantVelocity and acceleration are minimally (open(closed loop) load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

More abrupt speed point transitions Smooth speed point transitions

Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

OFF point slowdown and braking withurrent brake CONTRA-TORQUEreg or

DB circuitry

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

No OFF point braking via control

OFF point braking by Eddy-CurrentCONTRA-TORQUEreg or DB circuitry

OFF point Dynamic Braking (DB)deceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allows reacceleration after relayoperation

Drive is stopped before each changein direction

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speedachieved

Power dissipated in rotor resistors in lowspeed points

Uses less power at reduced velocity and duringacceleration

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Power contactors eliminatedMotor current switched by solidSpare drive recommended

Requires wound rotor motorNo encoder feedback required

Inverter-duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Motor blower not typically required foroperation at reduced motor velocity as fulltorque is not available at zero speed

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and highduty cycles

September 2008

Frequency Drive

duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limit switches master switch

require worm gear ormechanical load brake gearbox

require standard gearbox butwith motor encoder feedback

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration are minimally (open loop) or not(closed loop) load dependant

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

Smooth speed point transitions

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

OFF point Dynamic Braking (DB) with programmabledeceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speed

Uses less power at reduced velocity and during

Power contactors eliminatedMotor current switched by solid-state componentsSpare drive recommended

duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and high

September 2008 FRONTLINE

CLASS 5010 WB DRUM BRAKES

AIST rated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Hold drive stationary when motor is off

Available in 8rdquo to 30rdquo wheel diameters

Torque ratings 100 through 9000 ft-lbs

Corrosion resistant pins are standard on all brake sizes

Grease fittings are standard on 19rdquo 23rdquo and 30rdquo brake sizes

Available with optional self-adjuster

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

AIST rated and suitable for all crane classes

Used on bridge and trolley (horizontal travel) drives

Provide fixed holding torque for parking

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000

Stopping torque ratings up to 300 850 and 1500

Available for AC or DC control systems

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL(Contactor) CONTROLS

Hoist drive styles include Eddy-Current Brakeand Reversing Hoist controls

Reversing Plugging control for bridge and trolley (travel) drives

Meets NEMA Service Classification I

Available in NEMA contactor sizes 2 through 6

Numerous modifications available

Uses Class 8503 Type M Line-ARCreg contactors static timers

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

Meet OSHAamp NEC requirements for AC

Available in continuous ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by

Mechanical amp electrical interlocks prevent switch

CLASS 6170 YOUNGSTOWNreg

HOIST POWER LIMIT SWITCHES

Final safety limits for hoist upper travel

Interrupts motor power directly

Available in ratings up to 500HP at 230VDC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER

FRONTLINEreg AC CRANE CONTROL

ated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Corrosion resistant pins are standard on all brake sizes

andard on 19rdquo 23rdquo and 30rdquo brake sizes

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

ated and suitable for all crane classes

travel) drives

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000 ft-lbs respectively

Stopping torque ratings up to 300 850 and 1500 ft-lbs respectively

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL

Current Brake CONTRA-TORQUEreg AC Dynamic Lowering

bridge and trolley (travel) drives

Available in NEMA contactor sizes 2 through 6 through 300HP for single or multiple motors

contactors static timers and frequency relays for acceleration

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

crane disconnect switch

ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by the enclosure handle

Mechanical amp electrical interlocks prevent switch operation with handle in the OFF position

HOIST POWER LIMIT SWITCHES

to 500HP at 230VDC or up to 400HP at 460VAC and 550VAC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on-line at wwwECandMnet

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER MILL DUTY CONTROL COMPONENTS27

CLASS

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

FRONTLINE

28

CLASS

FRONTLINEreg AC CRANE CONTROL

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

copyCopyright The Electric Controller and Manufacturing Company LLCPrinted in the USA

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

September 2008

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

copyCopyright The Electric Controller and Manufacturing Company LLC 2007

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

Page 10: Ac Crane Control

FRONTLINE

10

CLASS

CLASS

APPROXIMATE DIMENSIOSINGLE AND DUPLEX MOTOR CONTROL STANDA

OPEN TYPE

MAXIMUM HP

460V 380VHin

mm

HOISTClasses6420 amp6422

40 3048

1219

80 6048

1219

125 10048

1219200 150

NOT A300 200

HOISTClasses6421 amp6426

ampBridge orTrolleyClass6426

40 3048

1219

80 6048

1219

125 10048

1219

NOT A200 150

300 200

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMENSIONS AND WEIGHTSMOTOR CONTROL STANDARD CONTROLLERS

ENCLOSED TYPE

OPEN TYPE ENCLOSED TYPE

Win

mm

Cin

mm

NETWeightLbskg

Win

mm

Cin

mm

SINGLE MOTOR CONTROL69

175312305

52523848

121969

175369

175312305

70031848

121969

175369

175312305

70031848

121969

1753

NOT AVAILABLE IN STANDARD DIMENSIONS SEE NARROW WIDTH DIM

DUPLEX MOTOR CONTROL69

175312305

50022748

121969

175369

175312305

70031848

121969

175369

175312305

70031848

121969

1753

NOT AVAILABLE IN STANDARD DIMENSIONS SEE NARROW WIDTH DIM

September 2008

RD CONTROLLERS

ENCLOSED TYPE

ENCLOSED TYPE

Din

mm

NETWeightLbskg

15381

750341

15381

900409

15381

900409

SEE NARROW WIDTH DIMENSIONS

15381

700318

15381

900409

15381

900409

SEE NARROW WIDTH DIMENSIONS

September 2008 FRONTLINE

APPROXIMATESINGLE AND DUPLEX

OPEN TYPE

DRIVE

MAXIMUM HP

460V 380Vmm

HOIST(All Classes)and Bridge

Trolley

40 30

80 601727

125 1001727

200 1501981

300 2001981

CLASS 6426Bridge and

Trolleyonly

40 30

80 601727

125 1001727

200 150

300 200

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMENSIONS AND WEIGHTSAND DUPLEX MOTOR CONTROL NARROW WIDTH CONTR

ENCLOSED TYPE

OPEN TYPE

Hin

mm

Win

mm

Cin

mm

NETWeightLbskg

Hin

mm

SINGLE MOTOR CONTROL- - - - -

681727

631600

12305

70031868

172768

172763

160012305

70031868

172778

198177

195615381

130059078

198178

198177

195615381

130059078

1981DUPLEX MOTOR CONTROL

- - - - -68

172775

190512305

100045468

172768

172775

190512305

100045468

1727

NOT AVAILABLE IN STANDARD DIMENSIONS SEE NARROW WIDTH DIM

AC CRANE CONTROL

11

CLASS

CLASS6420642164226426CONTROLLERS

ENCLOSED TYPE

ENCLOSED TYPE

Win

mm

Din

mm

NETWeightLbskg

- -63

160015381

900409

631600

15381

900409

771956

17482

1800817

771956

17482

1800817

- -75

190515381

1400635

751905

15381

1400635

SEE NARROW WIDTH DIMENSIONS

FRONTLINE

12

CLASS

WITH SQUARE DGENERAL INFORMATION

Class 6435 controllers are recommended for used withThe hoist controllers are of the reversing dynamic lowering type whenhoist type when used on cranes with mechanical load brakestravel controls are designed for use with rectifier operated dc brakes or solenoid operated ac brakes

The standard single motor reversing hoist controller consists of equipment for afrequency relay plugging The standard single motor reversing dynamic lowering hoist controller consists of the equipment for a single motorreversing plugging controller with one additional type S three pole contactorprovided (CR) and a pneumatic timing delay is deleted (IA)NOTE DUPLEX CONTROLLERS ARE NOT AVAILABLE

The standard single motor reversing plugging controller consistsof

1mdashTwo pole control molded case switch (MCB)1mdashThree pole magnetic main line circuit breaker with padlock clip

(LCB)2mdashType S three-pole directional contactors with mechanical

interlock (F R)3mdashType S three-pole acceleration contactors (including one for

plugging) (1A 2A P)2mdashPneumatic timing acceleration units (1A 2A)1mdashType SZF frequency relay for plugging (PR)1mdash460230 to 115 volt fused control circuit transformer (1mdashControl Circuit Rectifier (RECT)1mdashUndervoltage relay (UV)3mdashMagnetic inverse time overload relays (1OslashL 2OslashL 3OslashL1mdashSZF power loss protection relay circuit (SPR 2RECT 2MOV2RES)

Volts5060Hz

CraneRating

ContactorMaxAmperes

MaxHp

Primary SecondaryREVERSING AC

38067 100 30133 199 60

46067 100 40133 199 80

38067 100 30133 199 60

46067 100 40133 199 80

REVESING PLUGGING BRIDGE OR TROLLEY CONTROL

38067 100 30133 199 60

46067 100 40133 199 80

Select controller based on horsepower and rated primary and secondary current For

ORDERING INFORMATION REQUIRED

1 Class2 Type3 Motor Horsepower

4 Motor Primary Rated Voltage and Current5 Motor Secondary Rated Voltage and Current6 Controller Modifications Specify Form Numbers

CLASS

FRONTLINEreg AC CRANE CONTROL

SQUARE D CLASS 8502 TYPE S CONTACTORSreg

GENERAL INFORMATIONHOIST SERVICE

controllers are recommended for used with ac wound rotor motor on hoist and travel drives of general-purposedynamic lowering type when used on cranes without mechanical load brakes and are of the reversing

hoist type when used on cranes with mechanical load brakes The travel controllers are of the reversing plugging type Both the hoist and thefor use with rectifier operated dc brakes or solenoid operated ac brakes

BRIDGE OR TROLLEYThe standard single motor reversing hoist controller consists of equipment for a single motor reversing plugging controller

The standard single motor reversing dynamic lowering hoist controller consists of the equipment for a single motorS three pole contactor provided for dynamic lowering (DB) one additional control relay

pneumatic timing delay is deleted (IA)NOTE DUPLEX CONTROLLERS ARE NOT AVAILABLE

controller consists

Three pole magnetic main line circuit breaker with padlock clip

contactors with mechanical

(including one for

5 volt fused control circuit transformer (CTR)

1OslashL 2OslashL 3OslashL)SZF power loss protection relay circuit (SPR 2RECT 2MOV and

CLASS 8502 TYPE S CONTACTORS PNEUMATOC TIMING ACCELERATION CLASS 8501 TYPE SZF FREQUENCY RELAY FOR

PLUGGING

NEMAContactor

Size

NoSpeedPoints

OpenType

General PurposeEnclosure NEMAType 1 Gasketed

REVERSING AC DYNAMIC LOWERING HOIST CONTROL2 4 DOH71 DSH713 4 EOH71 ESH712 4 DOH71 DSH713 4 EOH71 ESH71REVERSING HOIST CONTROL2 4 DOH76 DSH763 4 EOH76 ESH762 4 DOH76 DSH763 4 EOH76 ESH76

REVESING PLUGGING BRIDGE OR TROLLEY CONTROL2 4 DOR76 DSR763 4 EOR76 ESR762 4 DOR76 DSR763 4 EOR76 ESR76

Select controller based on horsepower and rated primary and secondary current For explanation refer to Controller Ratings section of

ORDERING INFORMATION REQUIRED

4 Motor Primary Rated Voltage and Current5 Motor Secondary Rated Voltage and Current6 Controller Modifications Specify Form Numbers

7 Resistors Services Classification8 Master Switch Type and Form Number

September 2008

purpose overhead cranesout mechanical load brakes and are of the reversing

versing plugging type Both the hoist and the

reversing plugging controller but without SZFThe standard single motor reversing dynamic lowering hoist controller consists of the equipment for a single motor

one additional control relay

LASS 8502 TYPE S CONTACTORSPNEUMATOC TIMING ACCELERATION

FREQUENCY RELAY FOR

Outdoor EnclosureNEMA Type 3R

DWH71EWH71DWH71EWH71

DWH76EWH76DWH76EWH76

DWR76EWR76DWR76EWR76

refer to Controller Ratings section of Application Data

7 Resistors Services Classification8 Master Switch Type and Form Number

September 2008 FRONTLINE

WITH CLASSTRAVEL CONTROL

FRONTLINEreg AC CRANE CONTROL

WITH CLASS SQUARE D 8502 TYPE S CONTACTOTRAVEL CONTROL ELEMENTARY DIAGRAM

AC CRANE CONTROL

13

CLASS

8502 TYPE S CONTACTORS

CLASS

FRONTLINE

14

CLASS

WITH CLASS SQUARE DREVERSING HOIST

CLASS

FRONTLINEreg AC CRANE CONTROL

SQUARE D 8502 TYPE S CONTACTORSREVERSING HOIST ELMENTARY DIAGRAM

September 2008

September 2008 FRONTLINE

WITH CLASS SQUARE DDYNAMIC LOWERING HOI

FRONTLINEreg AC CRANE CONTROL

WITH CLASS SQUARE D 8502 TYPE S CONTACTODYNAMIC LOWERING HOIST ELEMENTARY DIAGRAM

AC CRANE CONTROL

15

CLASS

8502 TYPE S CONTACTORSDIAGRAM

CLASS

FRONTLINE

16

CLASS

APPROXIMATE DIMENSIOCLASS 8502 TYPE S CO

OPEN TYPE

DriveMaximum

HP(Volts)

Open Type

Hin

mm

Win

mm

Hoist orTravel

20(380)

401016

24607

40(460)

401016

24607

40(380)

401016

30762

80(460)

401016

30762

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMENSIONS AND WEIGHTSCLASS 8502 TYPE S CONTACTORS

ENCLOSED TYPE

Open Type Enclosed Type

Cin

mm

NetWeightlbskg

Hin

mm

Win

mm

85216

1506842

106730762

85216

1506842

106730762

10254

2009142

106736914

10254

2009142

106736914

September 2008

ENCLOSED TYPE

Enclosed Type

Din

mm

NetWeightlbskg

15381

300136

15381

300136

15381

385175

15381

385175

September 2008 FRONTLINE

A set of TABWELDreg resistors are required forapplications

RESISTOR APPLICATION

For resistors mounted in racks unwired ndash refer to Class 6715

Class 151 and 152 is recommended for light crane duty

Class 161 and 162 is recommended for standard duty

Class 171 and172 is recommended for severe duty

For explanation of NEMA resistor classifications

CLASS 6715 RESISTORS

To order an AC acceleration resistor set for use with duplex Cpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V andat 67A

Controller Class EnclosureMotorRating

ControlScheme

Code Type Code Code

6420 A0None N

ldquoHrdquo(HP)

6421 A16422 A2

Open O6426 A6

Hoist6435

A7Nema

1G

ldquoKrdquo(kw)

Travel6435

A8Nema

3RW

CustomerDesign

A99NemaScreenCovers

C

NEMA ClassSpeed Points

System VoltageMotor Rated Voltage

Class 6715

Controller TypeEnclosure

Motor Power

Motor ConfigurationRotor Volts

Rotor Amps

FRONTLINEreg AC CRANE CONTROL

SELECTION AND APPLICATIONe required for each AC motor control The following table is for selecting resistor for all AC motor control

RESISTOR APPLICATION

refer to Class 6715

Class 151 and 152 is recommended for light crane duty

Class 161 and 162 is recommended for standard duty

Class 171 and172 is recommended for severe duty

For explanation of NEMA resistor classifications ndash refer to Class 6715

CLASS

CLASS 6715 RESISTORS SELECTION TABLE

EXAMPLE AC RESISTOR SETTo order an AC acceleration resistor set for use with duplex CONTRA-TORQUE hoist (2 motors in parallel) NEMA 161 duty cycle 5 speedpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V and

CLASS 6715 RESISTOR SELECTION TABLE

NEMA DUTYSpeedPoints

NO

SystemVoltage

MotorRated

Voltage

Class Code Code V Code V Code

151 A3 208 2 208 2152 B

161 C

162 D4 380 3 380 3171 E

172 F91 G

5460 4 460 4

92 H

CustomerDesign

CS 575 5 575 56

4 4A2 G 37K C 5Class 6715

AC CRANE CONTROL

17

CLASS

The following table is for selecting resistor for all AC motor control

6715

hoist (2 motors in parallel) NEMA 161 duty cycle 5 speedpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V and rotor amps

MotorConfiguration

Ro

tor

Ro

tor

Code Type Code

Simplex S

Vo

lts

Am

psDuplex D

Quadruplex Q

4 D 350V 67A

CLASS

FRONTLINE

18

CLASS

APPROXIMATE NUMBER OCLASS 6715 TABWELD R

This tabulation is based on ECampM resistor designs for use with Class 6420 6421 6422 6426 controllerstabulation is for typical drive loading and for motors with standard NEMA secondary values of voltage andconsult factory with actual motor data

Max HPRating Single

Motor

6420Hoist

161 171 152

5 2 2 1

7 12 2 2 1

10 2 2 1

15 2 3 2

20 3 3 2

25 2 3 2

30 3 3 2

40 3 4 2

50 4 6 2

60 4 6 3

75 6 12 4

100 7 9 4

125 8 12 6

150 12 15 6

200 12 18 9

250 12 21 9

This tabulation is based on ECampM resistor designs for use with Class 6435drive loading and for motors with standard NEMA secondary values of voltage and

MaximumHP

HoistDynamic Lowering

NEMA Class152 162

5 1 175 1 110 1 215 2 220 2 225 2 330 2 340 3 350 3 460 3 475 4 6

NEMA SERVICE CLASSIF

Standard 6435 controllers meet the requirements of NEMA Services Crequirements of NEMA service classifications I (CMAA Sspeed point modification Form M3

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE NUMBER OF SEPARATELY MOUNTED STANDARSCLASS 6715 TABWELD RESISTOR SECTIONS (265rdquo LONG)

resistor designs for use with Class 6420 6421 6422 6426 controllers and is for estimatetabulation is for typical drive loading and for motors with standard NEMA secondary values of voltage and current For act

6421Hoist

6422Hoist

162 172 161 171 152

1 1 2 2 1

1 2 2 2 1

2 2 3 3 1

2 2 3 4 2

2 2 4 5 2

2 3 4 6 2

2 3 5 7 2

2 3 6 7 3

2 4 7 9 3

3 4 8 9 3

4 6 9 13 4

5 7 12 18 4

6 9 14 21 7

6 9 18 30 9

9 12 24 36 9

12 15 30 42 12

r designs for use with Class 6435 controller and is for estimate only This tabulation is fordrive loading and for motors with standard NEMA secondary values of voltage and current For actual quantities consult factory

HoistReversing

TravelReverse Plugging

NEMA Class NEMA Class152 162 1521 1 11 1 11 1 11 2 11 2 22 3 22 3 33 3 33 4 33 4 44 6 4

NEMA SERVICE CLASSIFICATIONS

meet the requirements of NEMA Services Classification II (CMAA service classifications A2 and B) to meet theervice classifications I (CMAA Service Classifications A1 C D E and F) the controller must be priced with the 5

September 2008

STANDARS

estimate only Thiscurrent For actual quantities

6426Hoist Bridge or Trolley

162 172

1 1

1 1

1 2

2 2

2 2

2 3

3 3

3 4

4 4

4 4

4 5

6 9

9 9

9 12

12 15

15 18

This tabulation is for typicalFor actual quantities consult factory

TravelReverse Plugging

NEMA Class162

11222334456

lassification II (CMAA service classifications A2 and B) to meet theE and F) the controller must be priced with the 5th

September 2008 FRONTLINE

MASTER SWITCHES AND

Class 9004 Type VGMaster Switch

CLASS 9004 VM OR CM

Control Class Speed Points

6420556

642156

642256

6426556

Motion Speed PointsHoist

(Dynamic Lowering)45

Hoist(Reversing)

45

Travel(Reverse Plugging)

45

Refer to Class 9004 catalog for more information

FRONTLINEreg AC CRANE CONTROL

GENERAL INFORMATIONMASTER SWITCHES AND MODIFICATIONS

Class 9004 Type CGMaster Switch

CLASS 9004 VM OR CM NEMA 1 ENCLOSED

oints Form VM TYPE

C1VG9

VG12

B1VG12VG16

D1VG12VG16

A1VG9

VG12

CONTROL 6435Form MA VM

A2AG9 VG9AG9 VG9

A3AG6 VG6AG9 VG9

A3AG6 VG6AG9 VG9

Refer to Class 9004 catalog for more information

AC CRANE CONTROL

19

CLASS

Class 9004 Type CGMaster Switch

CM TYPE

CG12CG12CG12CM16CG12CG16

CG12CG12

VM CMVG9 CG8VG9 CG12VG6 CG6VG9 CG8VG6 CG6VG9 CG8

CLASS

FRONTLINE

20

CLASS

GENERALMANUAL MAGNETIC DISC

The manual magnetic disconnect switch is used for protecting electrical crane circuits exOHSA requirements for a crane disconnect switchThe standard disconnect switch consists of

3mdashClass 8503 Type M form Y781 (with silver faced power contacttips) SPNO contactors The contactors are mechanically tiedOne normally open and one normally closed electricalinterlocks are included for indicating lights

1mdashTwo pole control molded case switch with padlock clip (1mdash460380230 to 255 volt fused control circuit transformer (1mdashIntermediate relay (CR)1mdashClass 9999AI1 Arc Suppressor

Volts5060Hz

NEMAContactor

Size

MaxAmperes

380or

460

4 1505 3006 6008 1350

Form

F30A

3 Main Line Power FusesStart-Stop Push Button

X11Additional Control CircuitNC interlocks can be added

A3 ldquoOnOffrdquo PushbuttonP1 Red ldquoOnrdquo Pilot LightP2 Green ldquoOffrdquo Pilot LightT12 200VA Additional Transformer Capacity

Class L fuse mounting is standard Customer

PILOT DEVICESThe pilot devices should be selected so the current rating is adequate for controlling the disconnect switch For coil9998 Coil Data catalog sheets An arc inhibitor may be required depending upon the ra

DISCONNEWhen applied to cranes the continuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated currentrequired by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

ORDERING INFORMATION REQUIRED1 Class2 Type3 Voltage4 Controller Modifications Specify Form

CLASS

FRONTLINEreg AC CRANE CONTROL

GENERAL INFORMATIONMANUAL MAGNETIC DISCONNECTS SWITCHES

etic disconnect switch is used for protecting electrical crane circuits except lifting magnet circuits The disconnect meets

ype M form Y781 (with silver faced power contacttips) SPNO contactors The contactors are mechanically tiedOne normally open and one normally closed electrical

case switch with padlock clip (CMCS)volt fused control circuit transformer (CTR)

CAM OPERATOR PREVENTSFROM CLOSING WHEN HANDLE IS IN OFFPOSITION

CONTACTORS OPERATED REMOTELY OR BYHANDLE ON THE ENCLOSURE

Amperes

Enclosures

General PurposeNEMA Type 1 gasketed

Dusttight NEMA Type 12Outdoor NEMA Type 3R

MFS12 MFA12MGS12 MGA12MHS12 MHA12MKS12 MKA12

MODIFICATIONSDescription

Main Line Power FusesStop Push Button

Additional Control Circuit Interlocks A maximum of 4 NONC interlocks can be added

Offrdquo PushbuttonRed ldquoOnrdquo Pilot LightGreen ldquoOffrdquo Pilot Light200VA Additional Transformer Capacity

Class L fuse mounting is standard Customer is to supply fuse rating

PILOT DEVICES SELECTIONThe pilot devices should be selected so the current rating is adequate for controlling the disconnect switch For coil currents9998 Coil Data catalog sheets An arc inhibitor may be required depending upon the ratings of the pilot device

DISCONNECT SWITCH SELECTIONcontinuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated current

required by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

September 2008

t lifting magnet circuits The disconnect meets

AM OPERATOR PREVENTS CONTACTORFROM CLOSING WHEN HANDLE IS IN OFF

ORS OPERATED REMOTELY OR BYHANDLE ON THE ENCLOSURE

currents refer to Class

continuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated currentrequired by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

September 2008 FRONTLINE

MANUAL MAGNETIC DISC

FRONTLINEreg AC CRANE CONTROL

MANUAL MAGNETIC DISCONNECT ELEMENTARY DIAGRA

AC CRANE CONTROL

21

CLASS

AGRAM

CLASS

FRONTLINE

22

CLASS

APPROXIMATE DIMESION

NEMASize

ContinuousAmpereRating A B C D

4 15018457

5127

8203

19483

5 30014356

3589

45114

28711

6 60018457

5127

8203

19483

8 135014356

5127

8203

28712

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMESIONS AND WEIGHTS

D E F G H J K L M

19483

30762

36914

2864727

315800

33838

3589

16229

36914

28711

33838

36914

267678

345876

36914

7178

72183

36914

19483

421067

421067

322818

4351105

451143

3589

10483

421067

28712

57838

441118

363922

345864

36914

70178

59137

741275

September 2008

M N

NetWeight

36914

15381

21096

36914

20508

235107

421067

20508

285130

741275

28508

300138

September 2008 FRONTLINE

MULTIMOTOR DRIVESTwo motors connected in parallel (duplex)control primary equipment and two sets of motor controlsecondary equipment are required in the controller Two sets ofpower resistors are also required

Four motors connected in parallel (quadruplex)necessary to double the duplex controller price given for twomotors in parallel One set of motor control primary and four setsof motor control secondary equipment are required Four sets opower resistors are required

CONTROLLERSNarrow width controllers ndash Most controllers ara narrow width construction These controllers when compared tostandard controllers are reduced width and increased height Fordetails see controller modifications and controller dimension

CONTROLLER MODIFICAT

Form Description

D6 Motor Isolating Circuit Breakers

B5 Brake Relay Reverse Plugging Controller Only

Y17 Arc Inhibitors Pendant Operated Controller

G95 Miniature Voltmeter Panel Mounted

G91 Miniature Ammeter Panel Mounted

E18 Narrow Width Panel

M24Substitute Type SZF Frequency Relay For ST1 StaticAcceleration Timers

H18Cabinet Space Heater Controlled By Interlock From MContactor

For Duplex Controllers For Duplex controllers multiply price by 2

1 Class2 Type3 Motor Horsepower4 Motor Primary Rated Voltage and Current

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATA

MULTIMOTOR DRIVESTwo motors connected in parallel (duplex) ndash One set of motorcontrol primary equipment and two sets of motor controlsecondary equipment are required in the controller Two sets of

Four motors connected in parallel (quadruplex) ndash It islex controller price given for two

motors in parallel One set of motor control primary and four setsof motor control secondary equipment are required Four sets of

CONTROLLERSMost controllers are also available in

a narrow width construction These controllers when compared tostandard controllers are reduced width and increased height For

see controller modifications and controller dimension

CONTROLLER MStandard controllers come equipped with the components listedSpecial features to be added to standard controllers are identifiedby Form number Most modifications are self

FORM D6 list motor isolation circuit breakers for use on duplexcontrollers For operation of the drive on one motor the motorline and connect breakers will disconnect one motor from the lineand connect the frequency relays to the power resistors of theother motor The brakes of the motor not in service are stillreleased electrically

FORM G95 lists a 3 frac12rdquo square miniature voltmeter to monitor onephase of motor primary voltage

FORM G9 lists a 3 frac12rdquo square miniature ammeter to monitor onephase of motor primary current Current transformersform are supplied Form G9 for motors above 10 HP20 HP 460 volts

CONTROLLER MODIFICATIONS

Brake Relay Reverse Plugging Controller Only

Arc Inhibitors Pendant Operated Controller

Substitute Type SZF Frequency Relay For ST1 Static

Cabinet Space Heater Controlled By Interlock From M

APPLICATION DATACLASS 6420 EDDYMAG

DYNAMIC MODEL AB-

MOTOR HPRATING

Brake Size

900 RMP Motors

Light DutyServices

SevereDutyServices

7 12 703

10 704

15 704

20 705

25 705

30 705

40 706

50 706

60 706

75 707

100 707

125 707

150 707200 708250 708300 708

ORDERING INFORMATION REQUIRED

5 Motor Secondary Rated Voltage andCurrent6 Controller Modifications Specify FormNumbers

7 Resistors Services Classification8 Master Switch Type and Form Number

AC CRANE CONTROL

23

CLASS

CLASS

CONTROLLER MODIFICATIONSStandard controllers come equipped with the components listedSpecial features to be added to standard controllers are identifiedby Form number Most modifications are self explanatory

list motor isolation circuit breakers for use on duplexcontrollers For operation of the drive on one motor the motorline and connect breakers will disconnect one motor from the lineand connect the frequency relays to the power resistors of the

motor The brakes of the motor not in service are still

lists a 3 frac12rdquo square miniature voltmeter to monitor one

lists a 3 frac12rdquo square miniature ammeter to monitor oneCurrent transformers with this

for motors above 10 HP 230 volt and

PPLICATION DATACLASS 6420 EDDYMAG HOIST

-FLOOR MOUNTED BRAKE

1200 RMP MotorsSevereDutyServices

Light DutyServices

SevereDutyServices

704 703 703

704 703 704

705 704 704

705 704 705

705 705 705

706 705 705

706 705 706

706 706 706

707 706 706

707 706 706

707 707 707

707 707 707

708 707 707708 707 708708 708 708--- 708 708

7 Resistors Services Classification8 Master Switch Type and Form Number

FRONTLINE

24

CLASS

CLASS

CRANE HOOK SPEED VS

CLASS 6421DYNAMIC LO

FIRST

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

O

FSY

NC

HR

ON

OU

SSP

EED

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

SY

NC

HR

ON

OU

SSP

PED

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATACRANE HOOK SPEED VS LOAD PERFORMANCE

CLASS 6420 EDDYMAGreg

CLASS 6421DYNAMIC LOWERING HOIST

FIRST

SECOND

THIRD

FOURTH

FIFTH

FIRST

SECOND

THIRD

FOURTH

FIFTH

40 60 80 100 120 140 160 180

LOAD PERFORMANCE IN OF SYNCHRONOUS SPEED

SECOND

THIRDFOURTH

FIFTH

FIRST

FIRST

SECOND amp THIRD

40 60 80 100 120 140 160 180

LOAD PERFORMANCE IN OF SYNCHRONOUS SPEED

September 2008

200

FIFTH

180 200

September 2008 FRONTLINE

CRANE HOOK SPEEDCLASS 6422 CONTRA

CLASS 6426

SECONDFIRST

FOURTH

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

O

FSY

NC

HR

ON

OU

SSP

EED

FIRST

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

SY

NC

HR

ON

OU

SSP

EED

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATACRANE HOOK SPEED VS LOAD PERFORMANCE

CLASS 6422 CONTRA-TORQUEreg

CLASS 6426 REVERSING HOIST CONTROL(With Mechanical Load Brake)

FIFTH

AUTOMATIC

FOURTH

THIRD

FIRST amp SECOND

SECOND

THIRD

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUS SPEED

SIXTH

SECOND

THIRD

FOURTH

FIFTH

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUSE SPEED

25

CLASS

CLASS

FIFTH

AUTOMATIC

FIRST amp SECOND

180 200

180 200

FRONTLINE

26

CLASS

AC CONTACTOR CONTROL

System AC Contactor Control

Crane Components

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switchradio controlReversing hoistsmechanical load brake gearboxAll other hoist stylesgearbox Best and critical positioning controlrequires E

ResistorsAcceleration resistor setSize based on HP amp duty cycle

Mo

tor

Perf

orm

an

ce

General

Velocity and acceleration is load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

More abrupt speed point

Slowdown

Travel Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

Hoist OFF point slowdown and braking withEddy-Current brakeDB circuitry

OFF Point

Travel No OFF point braking via control

Hoist OFF point braking by Eddybrake CONTRA

Reversing

Travel Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allowsoperation

Hoist Drive is stopped before each changein direction

Power ConsumptionPower dissipated in rotor resistors inspeed points

Component Wear

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Motors Encoders

Requires wound rotor motorNo encoder feedback

Motor blower not typically requiredoperation at reduced motor velocity as fulltorque is not available at zero speed

FRONTLINEreg AC CRANE CONTROL

AC CONTACTOR CONTROL vs DRIVES

AC Contactor Control Variable Frequency Drive

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switch and pendant orradio controlReversing hoists require worm gear ormechanical load brake gearbox

hoist styles require standardgearbox Best and critical positioning control

es Eddy-Current load brake

Inverter-duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limitpendant or radio controlOpen loop hoist controls require worm gear ormechanical load brake gearboxClosed loop hoist controlswith motor encoder feedback

Acceleration resistor set requiredSize based on HP amp duty cycle

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration is load dependantVelocity and acceleration are minimally (open(closed loop) load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

More abrupt speed point transitions Smooth speed point transitions

Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

OFF point slowdown and braking withurrent brake CONTRA-TORQUEreg or

DB circuitry

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

No OFF point braking via control

OFF point braking by Eddy-CurrentCONTRA-TORQUEreg or DB circuitry

OFF point Dynamic Braking (DB)deceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allows reacceleration after relayoperation

Drive is stopped before each changein direction

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speedachieved

Power dissipated in rotor resistors in lowspeed points

Uses less power at reduced velocity and duringacceleration

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Power contactors eliminatedMotor current switched by solidSpare drive recommended

Requires wound rotor motorNo encoder feedback required

Inverter-duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Motor blower not typically required foroperation at reduced motor velocity as fulltorque is not available at zero speed

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and highduty cycles

September 2008

Frequency Drive

duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limit switches master switch

require worm gear ormechanical load brake gearbox

require standard gearbox butwith motor encoder feedback

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration are minimally (open loop) or not(closed loop) load dependant

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

Smooth speed point transitions

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

OFF point Dynamic Braking (DB) with programmabledeceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speed

Uses less power at reduced velocity and during

Power contactors eliminatedMotor current switched by solid-state componentsSpare drive recommended

duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and high

September 2008 FRONTLINE

CLASS 5010 WB DRUM BRAKES

AIST rated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Hold drive stationary when motor is off

Available in 8rdquo to 30rdquo wheel diameters

Torque ratings 100 through 9000 ft-lbs

Corrosion resistant pins are standard on all brake sizes

Grease fittings are standard on 19rdquo 23rdquo and 30rdquo brake sizes

Available with optional self-adjuster

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

AIST rated and suitable for all crane classes

Used on bridge and trolley (horizontal travel) drives

Provide fixed holding torque for parking

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000

Stopping torque ratings up to 300 850 and 1500

Available for AC or DC control systems

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL(Contactor) CONTROLS

Hoist drive styles include Eddy-Current Brakeand Reversing Hoist controls

Reversing Plugging control for bridge and trolley (travel) drives

Meets NEMA Service Classification I

Available in NEMA contactor sizes 2 through 6

Numerous modifications available

Uses Class 8503 Type M Line-ARCreg contactors static timers

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

Meet OSHAamp NEC requirements for AC

Available in continuous ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by

Mechanical amp electrical interlocks prevent switch

CLASS 6170 YOUNGSTOWNreg

HOIST POWER LIMIT SWITCHES

Final safety limits for hoist upper travel

Interrupts motor power directly

Available in ratings up to 500HP at 230VDC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER

FRONTLINEreg AC CRANE CONTROL

ated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Corrosion resistant pins are standard on all brake sizes

andard on 19rdquo 23rdquo and 30rdquo brake sizes

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

ated and suitable for all crane classes

travel) drives

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000 ft-lbs respectively

Stopping torque ratings up to 300 850 and 1500 ft-lbs respectively

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL

Current Brake CONTRA-TORQUEreg AC Dynamic Lowering

bridge and trolley (travel) drives

Available in NEMA contactor sizes 2 through 6 through 300HP for single or multiple motors

contactors static timers and frequency relays for acceleration

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

crane disconnect switch

ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by the enclosure handle

Mechanical amp electrical interlocks prevent switch operation with handle in the OFF position

HOIST POWER LIMIT SWITCHES

to 500HP at 230VDC or up to 400HP at 460VAC and 550VAC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on-line at wwwECandMnet

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER MILL DUTY CONTROL COMPONENTS27

CLASS

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

FRONTLINE

28

CLASS

FRONTLINEreg AC CRANE CONTROL

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

copyCopyright The Electric Controller and Manufacturing Company LLCPrinted in the USA

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

September 2008

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

copyCopyright The Electric Controller and Manufacturing Company LLC 2007

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

Page 11: Ac Crane Control

September 2008 FRONTLINE

APPROXIMATESINGLE AND DUPLEX

OPEN TYPE

DRIVE

MAXIMUM HP

460V 380Vmm

HOIST(All Classes)and Bridge

Trolley

40 30

80 601727

125 1001727

200 1501981

300 2001981

CLASS 6426Bridge and

Trolleyonly

40 30

80 601727

125 1001727

200 150

300 200

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMENSIONS AND WEIGHTSAND DUPLEX MOTOR CONTROL NARROW WIDTH CONTR

ENCLOSED TYPE

OPEN TYPE

Hin

mm

Win

mm

Cin

mm

NETWeightLbskg

Hin

mm

SINGLE MOTOR CONTROL- - - - -

681727

631600

12305

70031868

172768

172763

160012305

70031868

172778

198177

195615381

130059078

198178

198177

195615381

130059078

1981DUPLEX MOTOR CONTROL

- - - - -68

172775

190512305

100045468

172768

172775

190512305

100045468

1727

NOT AVAILABLE IN STANDARD DIMENSIONS SEE NARROW WIDTH DIM

AC CRANE CONTROL

11

CLASS

CLASS6420642164226426CONTROLLERS

ENCLOSED TYPE

ENCLOSED TYPE

Win

mm

Din

mm

NETWeightLbskg

- -63

160015381

900409

631600

15381

900409

771956

17482

1800817

771956

17482

1800817

- -75

190515381

1400635

751905

15381

1400635

SEE NARROW WIDTH DIMENSIONS

FRONTLINE

12

CLASS

WITH SQUARE DGENERAL INFORMATION

Class 6435 controllers are recommended for used withThe hoist controllers are of the reversing dynamic lowering type whenhoist type when used on cranes with mechanical load brakestravel controls are designed for use with rectifier operated dc brakes or solenoid operated ac brakes

The standard single motor reversing hoist controller consists of equipment for afrequency relay plugging The standard single motor reversing dynamic lowering hoist controller consists of the equipment for a single motorreversing plugging controller with one additional type S three pole contactorprovided (CR) and a pneumatic timing delay is deleted (IA)NOTE DUPLEX CONTROLLERS ARE NOT AVAILABLE

The standard single motor reversing plugging controller consistsof

1mdashTwo pole control molded case switch (MCB)1mdashThree pole magnetic main line circuit breaker with padlock clip

(LCB)2mdashType S three-pole directional contactors with mechanical

interlock (F R)3mdashType S three-pole acceleration contactors (including one for

plugging) (1A 2A P)2mdashPneumatic timing acceleration units (1A 2A)1mdashType SZF frequency relay for plugging (PR)1mdash460230 to 115 volt fused control circuit transformer (1mdashControl Circuit Rectifier (RECT)1mdashUndervoltage relay (UV)3mdashMagnetic inverse time overload relays (1OslashL 2OslashL 3OslashL1mdashSZF power loss protection relay circuit (SPR 2RECT 2MOV2RES)

Volts5060Hz

CraneRating

ContactorMaxAmperes

MaxHp

Primary SecondaryREVERSING AC

38067 100 30133 199 60

46067 100 40133 199 80

38067 100 30133 199 60

46067 100 40133 199 80

REVESING PLUGGING BRIDGE OR TROLLEY CONTROL

38067 100 30133 199 60

46067 100 40133 199 80

Select controller based on horsepower and rated primary and secondary current For

ORDERING INFORMATION REQUIRED

1 Class2 Type3 Motor Horsepower

4 Motor Primary Rated Voltage and Current5 Motor Secondary Rated Voltage and Current6 Controller Modifications Specify Form Numbers

CLASS

FRONTLINEreg AC CRANE CONTROL

SQUARE D CLASS 8502 TYPE S CONTACTORSreg

GENERAL INFORMATIONHOIST SERVICE

controllers are recommended for used with ac wound rotor motor on hoist and travel drives of general-purposedynamic lowering type when used on cranes without mechanical load brakes and are of the reversing

hoist type when used on cranes with mechanical load brakes The travel controllers are of the reversing plugging type Both the hoist and thefor use with rectifier operated dc brakes or solenoid operated ac brakes

BRIDGE OR TROLLEYThe standard single motor reversing hoist controller consists of equipment for a single motor reversing plugging controller

The standard single motor reversing dynamic lowering hoist controller consists of the equipment for a single motorS three pole contactor provided for dynamic lowering (DB) one additional control relay

pneumatic timing delay is deleted (IA)NOTE DUPLEX CONTROLLERS ARE NOT AVAILABLE

controller consists

Three pole magnetic main line circuit breaker with padlock clip

contactors with mechanical

(including one for

5 volt fused control circuit transformer (CTR)

1OslashL 2OslashL 3OslashL)SZF power loss protection relay circuit (SPR 2RECT 2MOV and

CLASS 8502 TYPE S CONTACTORS PNEUMATOC TIMING ACCELERATION CLASS 8501 TYPE SZF FREQUENCY RELAY FOR

PLUGGING

NEMAContactor

Size

NoSpeedPoints

OpenType

General PurposeEnclosure NEMAType 1 Gasketed

REVERSING AC DYNAMIC LOWERING HOIST CONTROL2 4 DOH71 DSH713 4 EOH71 ESH712 4 DOH71 DSH713 4 EOH71 ESH71REVERSING HOIST CONTROL2 4 DOH76 DSH763 4 EOH76 ESH762 4 DOH76 DSH763 4 EOH76 ESH76

REVESING PLUGGING BRIDGE OR TROLLEY CONTROL2 4 DOR76 DSR763 4 EOR76 ESR762 4 DOR76 DSR763 4 EOR76 ESR76

Select controller based on horsepower and rated primary and secondary current For explanation refer to Controller Ratings section of

ORDERING INFORMATION REQUIRED

4 Motor Primary Rated Voltage and Current5 Motor Secondary Rated Voltage and Current6 Controller Modifications Specify Form Numbers

7 Resistors Services Classification8 Master Switch Type and Form Number

September 2008

purpose overhead cranesout mechanical load brakes and are of the reversing

versing plugging type Both the hoist and the

reversing plugging controller but without SZFThe standard single motor reversing dynamic lowering hoist controller consists of the equipment for a single motor

one additional control relay

LASS 8502 TYPE S CONTACTORSPNEUMATOC TIMING ACCELERATION

FREQUENCY RELAY FOR

Outdoor EnclosureNEMA Type 3R

DWH71EWH71DWH71EWH71

DWH76EWH76DWH76EWH76

DWR76EWR76DWR76EWR76

refer to Controller Ratings section of Application Data

7 Resistors Services Classification8 Master Switch Type and Form Number

September 2008 FRONTLINE

WITH CLASSTRAVEL CONTROL

FRONTLINEreg AC CRANE CONTROL

WITH CLASS SQUARE D 8502 TYPE S CONTACTOTRAVEL CONTROL ELEMENTARY DIAGRAM

AC CRANE CONTROL

13

CLASS

8502 TYPE S CONTACTORS

CLASS

FRONTLINE

14

CLASS

WITH CLASS SQUARE DREVERSING HOIST

CLASS

FRONTLINEreg AC CRANE CONTROL

SQUARE D 8502 TYPE S CONTACTORSREVERSING HOIST ELMENTARY DIAGRAM

September 2008

September 2008 FRONTLINE

WITH CLASS SQUARE DDYNAMIC LOWERING HOI

FRONTLINEreg AC CRANE CONTROL

WITH CLASS SQUARE D 8502 TYPE S CONTACTODYNAMIC LOWERING HOIST ELEMENTARY DIAGRAM

AC CRANE CONTROL

15

CLASS

8502 TYPE S CONTACTORSDIAGRAM

CLASS

FRONTLINE

16

CLASS

APPROXIMATE DIMENSIOCLASS 8502 TYPE S CO

OPEN TYPE

DriveMaximum

HP(Volts)

Open Type

Hin

mm

Win

mm

Hoist orTravel

20(380)

401016

24607

40(460)

401016

24607

40(380)

401016

30762

80(460)

401016

30762

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMENSIONS AND WEIGHTSCLASS 8502 TYPE S CONTACTORS

ENCLOSED TYPE

Open Type Enclosed Type

Cin

mm

NetWeightlbskg

Hin

mm

Win

mm

85216

1506842

106730762

85216

1506842

106730762

10254

2009142

106736914

10254

2009142

106736914

September 2008

ENCLOSED TYPE

Enclosed Type

Din

mm

NetWeightlbskg

15381

300136

15381

300136

15381

385175

15381

385175

September 2008 FRONTLINE

A set of TABWELDreg resistors are required forapplications

RESISTOR APPLICATION

For resistors mounted in racks unwired ndash refer to Class 6715

Class 151 and 152 is recommended for light crane duty

Class 161 and 162 is recommended for standard duty

Class 171 and172 is recommended for severe duty

For explanation of NEMA resistor classifications

CLASS 6715 RESISTORS

To order an AC acceleration resistor set for use with duplex Cpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V andat 67A

Controller Class EnclosureMotorRating

ControlScheme

Code Type Code Code

6420 A0None N

ldquoHrdquo(HP)

6421 A16422 A2

Open O6426 A6

Hoist6435

A7Nema

1G

ldquoKrdquo(kw)

Travel6435

A8Nema

3RW

CustomerDesign

A99NemaScreenCovers

C

NEMA ClassSpeed Points

System VoltageMotor Rated Voltage

Class 6715

Controller TypeEnclosure

Motor Power

Motor ConfigurationRotor Volts

Rotor Amps

FRONTLINEreg AC CRANE CONTROL

SELECTION AND APPLICATIONe required for each AC motor control The following table is for selecting resistor for all AC motor control

RESISTOR APPLICATION

refer to Class 6715

Class 151 and 152 is recommended for light crane duty

Class 161 and 162 is recommended for standard duty

Class 171 and172 is recommended for severe duty

For explanation of NEMA resistor classifications ndash refer to Class 6715

CLASS

CLASS 6715 RESISTORS SELECTION TABLE

EXAMPLE AC RESISTOR SETTo order an AC acceleration resistor set for use with duplex CONTRA-TORQUE hoist (2 motors in parallel) NEMA 161 duty cycle 5 speedpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V and

CLASS 6715 RESISTOR SELECTION TABLE

NEMA DUTYSpeedPoints

NO

SystemVoltage

MotorRated

Voltage

Class Code Code V Code V Code

151 A3 208 2 208 2152 B

161 C

162 D4 380 3 380 3171 E

172 F91 G

5460 4 460 4

92 H

CustomerDesign

CS 575 5 575 56

4 4A2 G 37K C 5Class 6715

AC CRANE CONTROL

17

CLASS

The following table is for selecting resistor for all AC motor control

6715

hoist (2 motors in parallel) NEMA 161 duty cycle 5 speedpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V and rotor amps

MotorConfiguration

Ro

tor

Ro

tor

Code Type Code

Simplex S

Vo

lts

Am

psDuplex D

Quadruplex Q

4 D 350V 67A

CLASS

FRONTLINE

18

CLASS

APPROXIMATE NUMBER OCLASS 6715 TABWELD R

This tabulation is based on ECampM resistor designs for use with Class 6420 6421 6422 6426 controllerstabulation is for typical drive loading and for motors with standard NEMA secondary values of voltage andconsult factory with actual motor data

Max HPRating Single

Motor

6420Hoist

161 171 152

5 2 2 1

7 12 2 2 1

10 2 2 1

15 2 3 2

20 3 3 2

25 2 3 2

30 3 3 2

40 3 4 2

50 4 6 2

60 4 6 3

75 6 12 4

100 7 9 4

125 8 12 6

150 12 15 6

200 12 18 9

250 12 21 9

This tabulation is based on ECampM resistor designs for use with Class 6435drive loading and for motors with standard NEMA secondary values of voltage and

MaximumHP

HoistDynamic Lowering

NEMA Class152 162

5 1 175 1 110 1 215 2 220 2 225 2 330 2 340 3 350 3 460 3 475 4 6

NEMA SERVICE CLASSIF

Standard 6435 controllers meet the requirements of NEMA Services Crequirements of NEMA service classifications I (CMAA Sspeed point modification Form M3

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE NUMBER OF SEPARATELY MOUNTED STANDARSCLASS 6715 TABWELD RESISTOR SECTIONS (265rdquo LONG)

resistor designs for use with Class 6420 6421 6422 6426 controllers and is for estimatetabulation is for typical drive loading and for motors with standard NEMA secondary values of voltage and current For act

6421Hoist

6422Hoist

162 172 161 171 152

1 1 2 2 1

1 2 2 2 1

2 2 3 3 1

2 2 3 4 2

2 2 4 5 2

2 3 4 6 2

2 3 5 7 2

2 3 6 7 3

2 4 7 9 3

3 4 8 9 3

4 6 9 13 4

5 7 12 18 4

6 9 14 21 7

6 9 18 30 9

9 12 24 36 9

12 15 30 42 12

r designs for use with Class 6435 controller and is for estimate only This tabulation is fordrive loading and for motors with standard NEMA secondary values of voltage and current For actual quantities consult factory

HoistReversing

TravelReverse Plugging

NEMA Class NEMA Class152 162 1521 1 11 1 11 1 11 2 11 2 22 3 22 3 33 3 33 4 33 4 44 6 4

NEMA SERVICE CLASSIFICATIONS

meet the requirements of NEMA Services Classification II (CMAA service classifications A2 and B) to meet theervice classifications I (CMAA Service Classifications A1 C D E and F) the controller must be priced with the 5

September 2008

STANDARS

estimate only Thiscurrent For actual quantities

6426Hoist Bridge or Trolley

162 172

1 1

1 1

1 2

2 2

2 2

2 3

3 3

3 4

4 4

4 4

4 5

6 9

9 9

9 12

12 15

15 18

This tabulation is for typicalFor actual quantities consult factory

TravelReverse Plugging

NEMA Class162

11222334456

lassification II (CMAA service classifications A2 and B) to meet theE and F) the controller must be priced with the 5th

September 2008 FRONTLINE

MASTER SWITCHES AND

Class 9004 Type VGMaster Switch

CLASS 9004 VM OR CM

Control Class Speed Points

6420556

642156

642256

6426556

Motion Speed PointsHoist

(Dynamic Lowering)45

Hoist(Reversing)

45

Travel(Reverse Plugging)

45

Refer to Class 9004 catalog for more information

FRONTLINEreg AC CRANE CONTROL

GENERAL INFORMATIONMASTER SWITCHES AND MODIFICATIONS

Class 9004 Type CGMaster Switch

CLASS 9004 VM OR CM NEMA 1 ENCLOSED

oints Form VM TYPE

C1VG9

VG12

B1VG12VG16

D1VG12VG16

A1VG9

VG12

CONTROL 6435Form MA VM

A2AG9 VG9AG9 VG9

A3AG6 VG6AG9 VG9

A3AG6 VG6AG9 VG9

Refer to Class 9004 catalog for more information

AC CRANE CONTROL

19

CLASS

Class 9004 Type CGMaster Switch

CM TYPE

CG12CG12CG12CM16CG12CG16

CG12CG12

VM CMVG9 CG8VG9 CG12VG6 CG6VG9 CG8VG6 CG6VG9 CG8

CLASS

FRONTLINE

20

CLASS

GENERALMANUAL MAGNETIC DISC

The manual magnetic disconnect switch is used for protecting electrical crane circuits exOHSA requirements for a crane disconnect switchThe standard disconnect switch consists of

3mdashClass 8503 Type M form Y781 (with silver faced power contacttips) SPNO contactors The contactors are mechanically tiedOne normally open and one normally closed electricalinterlocks are included for indicating lights

1mdashTwo pole control molded case switch with padlock clip (1mdash460380230 to 255 volt fused control circuit transformer (1mdashIntermediate relay (CR)1mdashClass 9999AI1 Arc Suppressor

Volts5060Hz

NEMAContactor

Size

MaxAmperes

380or

460

4 1505 3006 6008 1350

Form

F30A

3 Main Line Power FusesStart-Stop Push Button

X11Additional Control CircuitNC interlocks can be added

A3 ldquoOnOffrdquo PushbuttonP1 Red ldquoOnrdquo Pilot LightP2 Green ldquoOffrdquo Pilot LightT12 200VA Additional Transformer Capacity

Class L fuse mounting is standard Customer

PILOT DEVICESThe pilot devices should be selected so the current rating is adequate for controlling the disconnect switch For coil9998 Coil Data catalog sheets An arc inhibitor may be required depending upon the ra

DISCONNEWhen applied to cranes the continuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated currentrequired by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

ORDERING INFORMATION REQUIRED1 Class2 Type3 Voltage4 Controller Modifications Specify Form

CLASS

FRONTLINEreg AC CRANE CONTROL

GENERAL INFORMATIONMANUAL MAGNETIC DISCONNECTS SWITCHES

etic disconnect switch is used for protecting electrical crane circuits except lifting magnet circuits The disconnect meets

ype M form Y781 (with silver faced power contacttips) SPNO contactors The contactors are mechanically tiedOne normally open and one normally closed electrical

case switch with padlock clip (CMCS)volt fused control circuit transformer (CTR)

CAM OPERATOR PREVENTSFROM CLOSING WHEN HANDLE IS IN OFFPOSITION

CONTACTORS OPERATED REMOTELY OR BYHANDLE ON THE ENCLOSURE

Amperes

Enclosures

General PurposeNEMA Type 1 gasketed

Dusttight NEMA Type 12Outdoor NEMA Type 3R

MFS12 MFA12MGS12 MGA12MHS12 MHA12MKS12 MKA12

MODIFICATIONSDescription

Main Line Power FusesStop Push Button

Additional Control Circuit Interlocks A maximum of 4 NONC interlocks can be added

Offrdquo PushbuttonRed ldquoOnrdquo Pilot LightGreen ldquoOffrdquo Pilot Light200VA Additional Transformer Capacity

Class L fuse mounting is standard Customer is to supply fuse rating

PILOT DEVICES SELECTIONThe pilot devices should be selected so the current rating is adequate for controlling the disconnect switch For coil currents9998 Coil Data catalog sheets An arc inhibitor may be required depending upon the ratings of the pilot device

DISCONNECT SWITCH SELECTIONcontinuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated current

required by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

September 2008

t lifting magnet circuits The disconnect meets

AM OPERATOR PREVENTS CONTACTORFROM CLOSING WHEN HANDLE IS IN OFF

ORS OPERATED REMOTELY OR BYHANDLE ON THE ENCLOSURE

currents refer to Class

continuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated currentrequired by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

September 2008 FRONTLINE

MANUAL MAGNETIC DISC

FRONTLINEreg AC CRANE CONTROL

MANUAL MAGNETIC DISCONNECT ELEMENTARY DIAGRA

AC CRANE CONTROL

21

CLASS

AGRAM

CLASS

FRONTLINE

22

CLASS

APPROXIMATE DIMESION

NEMASize

ContinuousAmpereRating A B C D

4 15018457

5127

8203

19483

5 30014356

3589

45114

28711

6 60018457

5127

8203

19483

8 135014356

5127

8203

28712

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMESIONS AND WEIGHTS

D E F G H J K L M

19483

30762

36914

2864727

315800

33838

3589

16229

36914

28711

33838

36914

267678

345876

36914

7178

72183

36914

19483

421067

421067

322818

4351105

451143

3589

10483

421067

28712

57838

441118

363922

345864

36914

70178

59137

741275

September 2008

M N

NetWeight

36914

15381

21096

36914

20508

235107

421067

20508

285130

741275

28508

300138

September 2008 FRONTLINE

MULTIMOTOR DRIVESTwo motors connected in parallel (duplex)control primary equipment and two sets of motor controlsecondary equipment are required in the controller Two sets ofpower resistors are also required

Four motors connected in parallel (quadruplex)necessary to double the duplex controller price given for twomotors in parallel One set of motor control primary and four setsof motor control secondary equipment are required Four sets opower resistors are required

CONTROLLERSNarrow width controllers ndash Most controllers ara narrow width construction These controllers when compared tostandard controllers are reduced width and increased height Fordetails see controller modifications and controller dimension

CONTROLLER MODIFICAT

Form Description

D6 Motor Isolating Circuit Breakers

B5 Brake Relay Reverse Plugging Controller Only

Y17 Arc Inhibitors Pendant Operated Controller

G95 Miniature Voltmeter Panel Mounted

G91 Miniature Ammeter Panel Mounted

E18 Narrow Width Panel

M24Substitute Type SZF Frequency Relay For ST1 StaticAcceleration Timers

H18Cabinet Space Heater Controlled By Interlock From MContactor

For Duplex Controllers For Duplex controllers multiply price by 2

1 Class2 Type3 Motor Horsepower4 Motor Primary Rated Voltage and Current

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATA

MULTIMOTOR DRIVESTwo motors connected in parallel (duplex) ndash One set of motorcontrol primary equipment and two sets of motor controlsecondary equipment are required in the controller Two sets of

Four motors connected in parallel (quadruplex) ndash It islex controller price given for two

motors in parallel One set of motor control primary and four setsof motor control secondary equipment are required Four sets of

CONTROLLERSMost controllers are also available in

a narrow width construction These controllers when compared tostandard controllers are reduced width and increased height For

see controller modifications and controller dimension

CONTROLLER MStandard controllers come equipped with the components listedSpecial features to be added to standard controllers are identifiedby Form number Most modifications are self

FORM D6 list motor isolation circuit breakers for use on duplexcontrollers For operation of the drive on one motor the motorline and connect breakers will disconnect one motor from the lineand connect the frequency relays to the power resistors of theother motor The brakes of the motor not in service are stillreleased electrically

FORM G95 lists a 3 frac12rdquo square miniature voltmeter to monitor onephase of motor primary voltage

FORM G9 lists a 3 frac12rdquo square miniature ammeter to monitor onephase of motor primary current Current transformersform are supplied Form G9 for motors above 10 HP20 HP 460 volts

CONTROLLER MODIFICATIONS

Brake Relay Reverse Plugging Controller Only

Arc Inhibitors Pendant Operated Controller

Substitute Type SZF Frequency Relay For ST1 Static

Cabinet Space Heater Controlled By Interlock From M

APPLICATION DATACLASS 6420 EDDYMAG

DYNAMIC MODEL AB-

MOTOR HPRATING

Brake Size

900 RMP Motors

Light DutyServices

SevereDutyServices

7 12 703

10 704

15 704

20 705

25 705

30 705

40 706

50 706

60 706

75 707

100 707

125 707

150 707200 708250 708300 708

ORDERING INFORMATION REQUIRED

5 Motor Secondary Rated Voltage andCurrent6 Controller Modifications Specify FormNumbers

7 Resistors Services Classification8 Master Switch Type and Form Number

AC CRANE CONTROL

23

CLASS

CLASS

CONTROLLER MODIFICATIONSStandard controllers come equipped with the components listedSpecial features to be added to standard controllers are identifiedby Form number Most modifications are self explanatory

list motor isolation circuit breakers for use on duplexcontrollers For operation of the drive on one motor the motorline and connect breakers will disconnect one motor from the lineand connect the frequency relays to the power resistors of the

motor The brakes of the motor not in service are still

lists a 3 frac12rdquo square miniature voltmeter to monitor one

lists a 3 frac12rdquo square miniature ammeter to monitor oneCurrent transformers with this

for motors above 10 HP 230 volt and

PPLICATION DATACLASS 6420 EDDYMAG HOIST

-FLOOR MOUNTED BRAKE

1200 RMP MotorsSevereDutyServices

Light DutyServices

SevereDutyServices

704 703 703

704 703 704

705 704 704

705 704 705

705 705 705

706 705 705

706 705 706

706 706 706

707 706 706

707 706 706

707 707 707

707 707 707

708 707 707708 707 708708 708 708--- 708 708

7 Resistors Services Classification8 Master Switch Type and Form Number

FRONTLINE

24

CLASS

CLASS

CRANE HOOK SPEED VS

CLASS 6421DYNAMIC LO

FIRST

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

O

FSY

NC

HR

ON

OU

SSP

EED

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

SY

NC

HR

ON

OU

SSP

PED

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATACRANE HOOK SPEED VS LOAD PERFORMANCE

CLASS 6420 EDDYMAGreg

CLASS 6421DYNAMIC LOWERING HOIST

FIRST

SECOND

THIRD

FOURTH

FIFTH

FIRST

SECOND

THIRD

FOURTH

FIFTH

40 60 80 100 120 140 160 180

LOAD PERFORMANCE IN OF SYNCHRONOUS SPEED

SECOND

THIRDFOURTH

FIFTH

FIRST

FIRST

SECOND amp THIRD

40 60 80 100 120 140 160 180

LOAD PERFORMANCE IN OF SYNCHRONOUS SPEED

September 2008

200

FIFTH

180 200

September 2008 FRONTLINE

CRANE HOOK SPEEDCLASS 6422 CONTRA

CLASS 6426

SECONDFIRST

FOURTH

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

O

FSY

NC

HR

ON

OU

SSP

EED

FIRST

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

SY

NC

HR

ON

OU

SSP

EED

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATACRANE HOOK SPEED VS LOAD PERFORMANCE

CLASS 6422 CONTRA-TORQUEreg

CLASS 6426 REVERSING HOIST CONTROL(With Mechanical Load Brake)

FIFTH

AUTOMATIC

FOURTH

THIRD

FIRST amp SECOND

SECOND

THIRD

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUS SPEED

SIXTH

SECOND

THIRD

FOURTH

FIFTH

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUSE SPEED

25

CLASS

CLASS

FIFTH

AUTOMATIC

FIRST amp SECOND

180 200

180 200

FRONTLINE

26

CLASS

AC CONTACTOR CONTROL

System AC Contactor Control

Crane Components

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switchradio controlReversing hoistsmechanical load brake gearboxAll other hoist stylesgearbox Best and critical positioning controlrequires E

ResistorsAcceleration resistor setSize based on HP amp duty cycle

Mo

tor

Perf

orm

an

ce

General

Velocity and acceleration is load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

More abrupt speed point

Slowdown

Travel Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

Hoist OFF point slowdown and braking withEddy-Current brakeDB circuitry

OFF Point

Travel No OFF point braking via control

Hoist OFF point braking by Eddybrake CONTRA

Reversing

Travel Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allowsoperation

Hoist Drive is stopped before each changein direction

Power ConsumptionPower dissipated in rotor resistors inspeed points

Component Wear

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Motors Encoders

Requires wound rotor motorNo encoder feedback

Motor blower not typically requiredoperation at reduced motor velocity as fulltorque is not available at zero speed

FRONTLINEreg AC CRANE CONTROL

AC CONTACTOR CONTROL vs DRIVES

AC Contactor Control Variable Frequency Drive

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switch and pendant orradio controlReversing hoists require worm gear ormechanical load brake gearbox

hoist styles require standardgearbox Best and critical positioning control

es Eddy-Current load brake

Inverter-duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limitpendant or radio controlOpen loop hoist controls require worm gear ormechanical load brake gearboxClosed loop hoist controlswith motor encoder feedback

Acceleration resistor set requiredSize based on HP amp duty cycle

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration is load dependantVelocity and acceleration are minimally (open(closed loop) load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

More abrupt speed point transitions Smooth speed point transitions

Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

OFF point slowdown and braking withurrent brake CONTRA-TORQUEreg or

DB circuitry

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

No OFF point braking via control

OFF point braking by Eddy-CurrentCONTRA-TORQUEreg or DB circuitry

OFF point Dynamic Braking (DB)deceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allows reacceleration after relayoperation

Drive is stopped before each changein direction

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speedachieved

Power dissipated in rotor resistors in lowspeed points

Uses less power at reduced velocity and duringacceleration

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Power contactors eliminatedMotor current switched by solidSpare drive recommended

Requires wound rotor motorNo encoder feedback required

Inverter-duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Motor blower not typically required foroperation at reduced motor velocity as fulltorque is not available at zero speed

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and highduty cycles

September 2008

Frequency Drive

duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limit switches master switch

require worm gear ormechanical load brake gearbox

require standard gearbox butwith motor encoder feedback

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration are minimally (open loop) or not(closed loop) load dependant

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

Smooth speed point transitions

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

OFF point Dynamic Braking (DB) with programmabledeceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speed

Uses less power at reduced velocity and during

Power contactors eliminatedMotor current switched by solid-state componentsSpare drive recommended

duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and high

September 2008 FRONTLINE

CLASS 5010 WB DRUM BRAKES

AIST rated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Hold drive stationary when motor is off

Available in 8rdquo to 30rdquo wheel diameters

Torque ratings 100 through 9000 ft-lbs

Corrosion resistant pins are standard on all brake sizes

Grease fittings are standard on 19rdquo 23rdquo and 30rdquo brake sizes

Available with optional self-adjuster

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

AIST rated and suitable for all crane classes

Used on bridge and trolley (horizontal travel) drives

Provide fixed holding torque for parking

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000

Stopping torque ratings up to 300 850 and 1500

Available for AC or DC control systems

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL(Contactor) CONTROLS

Hoist drive styles include Eddy-Current Brakeand Reversing Hoist controls

Reversing Plugging control for bridge and trolley (travel) drives

Meets NEMA Service Classification I

Available in NEMA contactor sizes 2 through 6

Numerous modifications available

Uses Class 8503 Type M Line-ARCreg contactors static timers

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

Meet OSHAamp NEC requirements for AC

Available in continuous ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by

Mechanical amp electrical interlocks prevent switch

CLASS 6170 YOUNGSTOWNreg

HOIST POWER LIMIT SWITCHES

Final safety limits for hoist upper travel

Interrupts motor power directly

Available in ratings up to 500HP at 230VDC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER

FRONTLINEreg AC CRANE CONTROL

ated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Corrosion resistant pins are standard on all brake sizes

andard on 19rdquo 23rdquo and 30rdquo brake sizes

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

ated and suitable for all crane classes

travel) drives

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000 ft-lbs respectively

Stopping torque ratings up to 300 850 and 1500 ft-lbs respectively

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL

Current Brake CONTRA-TORQUEreg AC Dynamic Lowering

bridge and trolley (travel) drives

Available in NEMA contactor sizes 2 through 6 through 300HP for single or multiple motors

contactors static timers and frequency relays for acceleration

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

crane disconnect switch

ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by the enclosure handle

Mechanical amp electrical interlocks prevent switch operation with handle in the OFF position

HOIST POWER LIMIT SWITCHES

to 500HP at 230VDC or up to 400HP at 460VAC and 550VAC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on-line at wwwECandMnet

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER MILL DUTY CONTROL COMPONENTS27

CLASS

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

FRONTLINE

28

CLASS

FRONTLINEreg AC CRANE CONTROL

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

copyCopyright The Electric Controller and Manufacturing Company LLCPrinted in the USA

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

September 2008

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

copyCopyright The Electric Controller and Manufacturing Company LLC 2007

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

Page 12: Ac Crane Control

FRONTLINE

12

CLASS

WITH SQUARE DGENERAL INFORMATION

Class 6435 controllers are recommended for used withThe hoist controllers are of the reversing dynamic lowering type whenhoist type when used on cranes with mechanical load brakestravel controls are designed for use with rectifier operated dc brakes or solenoid operated ac brakes

The standard single motor reversing hoist controller consists of equipment for afrequency relay plugging The standard single motor reversing dynamic lowering hoist controller consists of the equipment for a single motorreversing plugging controller with one additional type S three pole contactorprovided (CR) and a pneumatic timing delay is deleted (IA)NOTE DUPLEX CONTROLLERS ARE NOT AVAILABLE

The standard single motor reversing plugging controller consistsof

1mdashTwo pole control molded case switch (MCB)1mdashThree pole magnetic main line circuit breaker with padlock clip

(LCB)2mdashType S three-pole directional contactors with mechanical

interlock (F R)3mdashType S three-pole acceleration contactors (including one for

plugging) (1A 2A P)2mdashPneumatic timing acceleration units (1A 2A)1mdashType SZF frequency relay for plugging (PR)1mdash460230 to 115 volt fused control circuit transformer (1mdashControl Circuit Rectifier (RECT)1mdashUndervoltage relay (UV)3mdashMagnetic inverse time overload relays (1OslashL 2OslashL 3OslashL1mdashSZF power loss protection relay circuit (SPR 2RECT 2MOV2RES)

Volts5060Hz

CraneRating

ContactorMaxAmperes

MaxHp

Primary SecondaryREVERSING AC

38067 100 30133 199 60

46067 100 40133 199 80

38067 100 30133 199 60

46067 100 40133 199 80

REVESING PLUGGING BRIDGE OR TROLLEY CONTROL

38067 100 30133 199 60

46067 100 40133 199 80

Select controller based on horsepower and rated primary and secondary current For

ORDERING INFORMATION REQUIRED

1 Class2 Type3 Motor Horsepower

4 Motor Primary Rated Voltage and Current5 Motor Secondary Rated Voltage and Current6 Controller Modifications Specify Form Numbers

CLASS

FRONTLINEreg AC CRANE CONTROL

SQUARE D CLASS 8502 TYPE S CONTACTORSreg

GENERAL INFORMATIONHOIST SERVICE

controllers are recommended for used with ac wound rotor motor on hoist and travel drives of general-purposedynamic lowering type when used on cranes without mechanical load brakes and are of the reversing

hoist type when used on cranes with mechanical load brakes The travel controllers are of the reversing plugging type Both the hoist and thefor use with rectifier operated dc brakes or solenoid operated ac brakes

BRIDGE OR TROLLEYThe standard single motor reversing hoist controller consists of equipment for a single motor reversing plugging controller

The standard single motor reversing dynamic lowering hoist controller consists of the equipment for a single motorS three pole contactor provided for dynamic lowering (DB) one additional control relay

pneumatic timing delay is deleted (IA)NOTE DUPLEX CONTROLLERS ARE NOT AVAILABLE

controller consists

Three pole magnetic main line circuit breaker with padlock clip

contactors with mechanical

(including one for

5 volt fused control circuit transformer (CTR)

1OslashL 2OslashL 3OslashL)SZF power loss protection relay circuit (SPR 2RECT 2MOV and

CLASS 8502 TYPE S CONTACTORS PNEUMATOC TIMING ACCELERATION CLASS 8501 TYPE SZF FREQUENCY RELAY FOR

PLUGGING

NEMAContactor

Size

NoSpeedPoints

OpenType

General PurposeEnclosure NEMAType 1 Gasketed

REVERSING AC DYNAMIC LOWERING HOIST CONTROL2 4 DOH71 DSH713 4 EOH71 ESH712 4 DOH71 DSH713 4 EOH71 ESH71REVERSING HOIST CONTROL2 4 DOH76 DSH763 4 EOH76 ESH762 4 DOH76 DSH763 4 EOH76 ESH76

REVESING PLUGGING BRIDGE OR TROLLEY CONTROL2 4 DOR76 DSR763 4 EOR76 ESR762 4 DOR76 DSR763 4 EOR76 ESR76

Select controller based on horsepower and rated primary and secondary current For explanation refer to Controller Ratings section of

ORDERING INFORMATION REQUIRED

4 Motor Primary Rated Voltage and Current5 Motor Secondary Rated Voltage and Current6 Controller Modifications Specify Form Numbers

7 Resistors Services Classification8 Master Switch Type and Form Number

September 2008

purpose overhead cranesout mechanical load brakes and are of the reversing

versing plugging type Both the hoist and the

reversing plugging controller but without SZFThe standard single motor reversing dynamic lowering hoist controller consists of the equipment for a single motor

one additional control relay

LASS 8502 TYPE S CONTACTORSPNEUMATOC TIMING ACCELERATION

FREQUENCY RELAY FOR

Outdoor EnclosureNEMA Type 3R

DWH71EWH71DWH71EWH71

DWH76EWH76DWH76EWH76

DWR76EWR76DWR76EWR76

refer to Controller Ratings section of Application Data

7 Resistors Services Classification8 Master Switch Type and Form Number

September 2008 FRONTLINE

WITH CLASSTRAVEL CONTROL

FRONTLINEreg AC CRANE CONTROL

WITH CLASS SQUARE D 8502 TYPE S CONTACTOTRAVEL CONTROL ELEMENTARY DIAGRAM

AC CRANE CONTROL

13

CLASS

8502 TYPE S CONTACTORS

CLASS

FRONTLINE

14

CLASS

WITH CLASS SQUARE DREVERSING HOIST

CLASS

FRONTLINEreg AC CRANE CONTROL

SQUARE D 8502 TYPE S CONTACTORSREVERSING HOIST ELMENTARY DIAGRAM

September 2008

September 2008 FRONTLINE

WITH CLASS SQUARE DDYNAMIC LOWERING HOI

FRONTLINEreg AC CRANE CONTROL

WITH CLASS SQUARE D 8502 TYPE S CONTACTODYNAMIC LOWERING HOIST ELEMENTARY DIAGRAM

AC CRANE CONTROL

15

CLASS

8502 TYPE S CONTACTORSDIAGRAM

CLASS

FRONTLINE

16

CLASS

APPROXIMATE DIMENSIOCLASS 8502 TYPE S CO

OPEN TYPE

DriveMaximum

HP(Volts)

Open Type

Hin

mm

Win

mm

Hoist orTravel

20(380)

401016

24607

40(460)

401016

24607

40(380)

401016

30762

80(460)

401016

30762

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMENSIONS AND WEIGHTSCLASS 8502 TYPE S CONTACTORS

ENCLOSED TYPE

Open Type Enclosed Type

Cin

mm

NetWeightlbskg

Hin

mm

Win

mm

85216

1506842

106730762

85216

1506842

106730762

10254

2009142

106736914

10254

2009142

106736914

September 2008

ENCLOSED TYPE

Enclosed Type

Din

mm

NetWeightlbskg

15381

300136

15381

300136

15381

385175

15381

385175

September 2008 FRONTLINE

A set of TABWELDreg resistors are required forapplications

RESISTOR APPLICATION

For resistors mounted in racks unwired ndash refer to Class 6715

Class 151 and 152 is recommended for light crane duty

Class 161 and 162 is recommended for standard duty

Class 171 and172 is recommended for severe duty

For explanation of NEMA resistor classifications

CLASS 6715 RESISTORS

To order an AC acceleration resistor set for use with duplex Cpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V andat 67A

Controller Class EnclosureMotorRating

ControlScheme

Code Type Code Code

6420 A0None N

ldquoHrdquo(HP)

6421 A16422 A2

Open O6426 A6

Hoist6435

A7Nema

1G

ldquoKrdquo(kw)

Travel6435

A8Nema

3RW

CustomerDesign

A99NemaScreenCovers

C

NEMA ClassSpeed Points

System VoltageMotor Rated Voltage

Class 6715

Controller TypeEnclosure

Motor Power

Motor ConfigurationRotor Volts

Rotor Amps

FRONTLINEreg AC CRANE CONTROL

SELECTION AND APPLICATIONe required for each AC motor control The following table is for selecting resistor for all AC motor control

RESISTOR APPLICATION

refer to Class 6715

Class 151 and 152 is recommended for light crane duty

Class 161 and 162 is recommended for standard duty

Class 171 and172 is recommended for severe duty

For explanation of NEMA resistor classifications ndash refer to Class 6715

CLASS

CLASS 6715 RESISTORS SELECTION TABLE

EXAMPLE AC RESISTOR SETTo order an AC acceleration resistor set for use with duplex CONTRA-TORQUE hoist (2 motors in parallel) NEMA 161 duty cycle 5 speedpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V and

CLASS 6715 RESISTOR SELECTION TABLE

NEMA DUTYSpeedPoints

NO

SystemVoltage

MotorRated

Voltage

Class Code Code V Code V Code

151 A3 208 2 208 2152 B

161 C

162 D4 380 3 380 3171 E

172 F91 G

5460 4 460 4

92 H

CustomerDesign

CS 575 5 575 56

4 4A2 G 37K C 5Class 6715

AC CRANE CONTROL

17

CLASS

The following table is for selecting resistor for all AC motor control

6715

hoist (2 motors in parallel) NEMA 161 duty cycle 5 speedpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V and rotor amps

MotorConfiguration

Ro

tor

Ro

tor

Code Type Code

Simplex S

Vo

lts

Am

psDuplex D

Quadruplex Q

4 D 350V 67A

CLASS

FRONTLINE

18

CLASS

APPROXIMATE NUMBER OCLASS 6715 TABWELD R

This tabulation is based on ECampM resistor designs for use with Class 6420 6421 6422 6426 controllerstabulation is for typical drive loading and for motors with standard NEMA secondary values of voltage andconsult factory with actual motor data

Max HPRating Single

Motor

6420Hoist

161 171 152

5 2 2 1

7 12 2 2 1

10 2 2 1

15 2 3 2

20 3 3 2

25 2 3 2

30 3 3 2

40 3 4 2

50 4 6 2

60 4 6 3

75 6 12 4

100 7 9 4

125 8 12 6

150 12 15 6

200 12 18 9

250 12 21 9

This tabulation is based on ECampM resistor designs for use with Class 6435drive loading and for motors with standard NEMA secondary values of voltage and

MaximumHP

HoistDynamic Lowering

NEMA Class152 162

5 1 175 1 110 1 215 2 220 2 225 2 330 2 340 3 350 3 460 3 475 4 6

NEMA SERVICE CLASSIF

Standard 6435 controllers meet the requirements of NEMA Services Crequirements of NEMA service classifications I (CMAA Sspeed point modification Form M3

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE NUMBER OF SEPARATELY MOUNTED STANDARSCLASS 6715 TABWELD RESISTOR SECTIONS (265rdquo LONG)

resistor designs for use with Class 6420 6421 6422 6426 controllers and is for estimatetabulation is for typical drive loading and for motors with standard NEMA secondary values of voltage and current For act

6421Hoist

6422Hoist

162 172 161 171 152

1 1 2 2 1

1 2 2 2 1

2 2 3 3 1

2 2 3 4 2

2 2 4 5 2

2 3 4 6 2

2 3 5 7 2

2 3 6 7 3

2 4 7 9 3

3 4 8 9 3

4 6 9 13 4

5 7 12 18 4

6 9 14 21 7

6 9 18 30 9

9 12 24 36 9

12 15 30 42 12

r designs for use with Class 6435 controller and is for estimate only This tabulation is fordrive loading and for motors with standard NEMA secondary values of voltage and current For actual quantities consult factory

HoistReversing

TravelReverse Plugging

NEMA Class NEMA Class152 162 1521 1 11 1 11 1 11 2 11 2 22 3 22 3 33 3 33 4 33 4 44 6 4

NEMA SERVICE CLASSIFICATIONS

meet the requirements of NEMA Services Classification II (CMAA service classifications A2 and B) to meet theervice classifications I (CMAA Service Classifications A1 C D E and F) the controller must be priced with the 5

September 2008

STANDARS

estimate only Thiscurrent For actual quantities

6426Hoist Bridge or Trolley

162 172

1 1

1 1

1 2

2 2

2 2

2 3

3 3

3 4

4 4

4 4

4 5

6 9

9 9

9 12

12 15

15 18

This tabulation is for typicalFor actual quantities consult factory

TravelReverse Plugging

NEMA Class162

11222334456

lassification II (CMAA service classifications A2 and B) to meet theE and F) the controller must be priced with the 5th

September 2008 FRONTLINE

MASTER SWITCHES AND

Class 9004 Type VGMaster Switch

CLASS 9004 VM OR CM

Control Class Speed Points

6420556

642156

642256

6426556

Motion Speed PointsHoist

(Dynamic Lowering)45

Hoist(Reversing)

45

Travel(Reverse Plugging)

45

Refer to Class 9004 catalog for more information

FRONTLINEreg AC CRANE CONTROL

GENERAL INFORMATIONMASTER SWITCHES AND MODIFICATIONS

Class 9004 Type CGMaster Switch

CLASS 9004 VM OR CM NEMA 1 ENCLOSED

oints Form VM TYPE

C1VG9

VG12

B1VG12VG16

D1VG12VG16

A1VG9

VG12

CONTROL 6435Form MA VM

A2AG9 VG9AG9 VG9

A3AG6 VG6AG9 VG9

A3AG6 VG6AG9 VG9

Refer to Class 9004 catalog for more information

AC CRANE CONTROL

19

CLASS

Class 9004 Type CGMaster Switch

CM TYPE

CG12CG12CG12CM16CG12CG16

CG12CG12

VM CMVG9 CG8VG9 CG12VG6 CG6VG9 CG8VG6 CG6VG9 CG8

CLASS

FRONTLINE

20

CLASS

GENERALMANUAL MAGNETIC DISC

The manual magnetic disconnect switch is used for protecting electrical crane circuits exOHSA requirements for a crane disconnect switchThe standard disconnect switch consists of

3mdashClass 8503 Type M form Y781 (with silver faced power contacttips) SPNO contactors The contactors are mechanically tiedOne normally open and one normally closed electricalinterlocks are included for indicating lights

1mdashTwo pole control molded case switch with padlock clip (1mdash460380230 to 255 volt fused control circuit transformer (1mdashIntermediate relay (CR)1mdashClass 9999AI1 Arc Suppressor

Volts5060Hz

NEMAContactor

Size

MaxAmperes

380or

460

4 1505 3006 6008 1350

Form

F30A

3 Main Line Power FusesStart-Stop Push Button

X11Additional Control CircuitNC interlocks can be added

A3 ldquoOnOffrdquo PushbuttonP1 Red ldquoOnrdquo Pilot LightP2 Green ldquoOffrdquo Pilot LightT12 200VA Additional Transformer Capacity

Class L fuse mounting is standard Customer

PILOT DEVICESThe pilot devices should be selected so the current rating is adequate for controlling the disconnect switch For coil9998 Coil Data catalog sheets An arc inhibitor may be required depending upon the ra

DISCONNEWhen applied to cranes the continuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated currentrequired by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

ORDERING INFORMATION REQUIRED1 Class2 Type3 Voltage4 Controller Modifications Specify Form

CLASS

FRONTLINEreg AC CRANE CONTROL

GENERAL INFORMATIONMANUAL MAGNETIC DISCONNECTS SWITCHES

etic disconnect switch is used for protecting electrical crane circuits except lifting magnet circuits The disconnect meets

ype M form Y781 (with silver faced power contacttips) SPNO contactors The contactors are mechanically tiedOne normally open and one normally closed electrical

case switch with padlock clip (CMCS)volt fused control circuit transformer (CTR)

CAM OPERATOR PREVENTSFROM CLOSING WHEN HANDLE IS IN OFFPOSITION

CONTACTORS OPERATED REMOTELY OR BYHANDLE ON THE ENCLOSURE

Amperes

Enclosures

General PurposeNEMA Type 1 gasketed

Dusttight NEMA Type 12Outdoor NEMA Type 3R

MFS12 MFA12MGS12 MGA12MHS12 MHA12MKS12 MKA12

MODIFICATIONSDescription

Main Line Power FusesStop Push Button

Additional Control Circuit Interlocks A maximum of 4 NONC interlocks can be added

Offrdquo PushbuttonRed ldquoOnrdquo Pilot LightGreen ldquoOffrdquo Pilot Light200VA Additional Transformer Capacity

Class L fuse mounting is standard Customer is to supply fuse rating

PILOT DEVICES SELECTIONThe pilot devices should be selected so the current rating is adequate for controlling the disconnect switch For coil currents9998 Coil Data catalog sheets An arc inhibitor may be required depending upon the ratings of the pilot device

DISCONNECT SWITCH SELECTIONcontinuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated current

required by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

September 2008

t lifting magnet circuits The disconnect meets

AM OPERATOR PREVENTS CONTACTORFROM CLOSING WHEN HANDLE IS IN OFF

ORS OPERATED REMOTELY OR BYHANDLE ON THE ENCLOSURE

currents refer to Class

continuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated currentrequired by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

September 2008 FRONTLINE

MANUAL MAGNETIC DISC

FRONTLINEreg AC CRANE CONTROL

MANUAL MAGNETIC DISCONNECT ELEMENTARY DIAGRA

AC CRANE CONTROL

21

CLASS

AGRAM

CLASS

FRONTLINE

22

CLASS

APPROXIMATE DIMESION

NEMASize

ContinuousAmpereRating A B C D

4 15018457

5127

8203

19483

5 30014356

3589

45114

28711

6 60018457

5127

8203

19483

8 135014356

5127

8203

28712

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMESIONS AND WEIGHTS

D E F G H J K L M

19483

30762

36914

2864727

315800

33838

3589

16229

36914

28711

33838

36914

267678

345876

36914

7178

72183

36914

19483

421067

421067

322818

4351105

451143

3589

10483

421067

28712

57838

441118

363922

345864

36914

70178

59137

741275

September 2008

M N

NetWeight

36914

15381

21096

36914

20508

235107

421067

20508

285130

741275

28508

300138

September 2008 FRONTLINE

MULTIMOTOR DRIVESTwo motors connected in parallel (duplex)control primary equipment and two sets of motor controlsecondary equipment are required in the controller Two sets ofpower resistors are also required

Four motors connected in parallel (quadruplex)necessary to double the duplex controller price given for twomotors in parallel One set of motor control primary and four setsof motor control secondary equipment are required Four sets opower resistors are required

CONTROLLERSNarrow width controllers ndash Most controllers ara narrow width construction These controllers when compared tostandard controllers are reduced width and increased height Fordetails see controller modifications and controller dimension

CONTROLLER MODIFICAT

Form Description

D6 Motor Isolating Circuit Breakers

B5 Brake Relay Reverse Plugging Controller Only

Y17 Arc Inhibitors Pendant Operated Controller

G95 Miniature Voltmeter Panel Mounted

G91 Miniature Ammeter Panel Mounted

E18 Narrow Width Panel

M24Substitute Type SZF Frequency Relay For ST1 StaticAcceleration Timers

H18Cabinet Space Heater Controlled By Interlock From MContactor

For Duplex Controllers For Duplex controllers multiply price by 2

1 Class2 Type3 Motor Horsepower4 Motor Primary Rated Voltage and Current

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATA

MULTIMOTOR DRIVESTwo motors connected in parallel (duplex) ndash One set of motorcontrol primary equipment and two sets of motor controlsecondary equipment are required in the controller Two sets of

Four motors connected in parallel (quadruplex) ndash It islex controller price given for two

motors in parallel One set of motor control primary and four setsof motor control secondary equipment are required Four sets of

CONTROLLERSMost controllers are also available in

a narrow width construction These controllers when compared tostandard controllers are reduced width and increased height For

see controller modifications and controller dimension

CONTROLLER MStandard controllers come equipped with the components listedSpecial features to be added to standard controllers are identifiedby Form number Most modifications are self

FORM D6 list motor isolation circuit breakers for use on duplexcontrollers For operation of the drive on one motor the motorline and connect breakers will disconnect one motor from the lineand connect the frequency relays to the power resistors of theother motor The brakes of the motor not in service are stillreleased electrically

FORM G95 lists a 3 frac12rdquo square miniature voltmeter to monitor onephase of motor primary voltage

FORM G9 lists a 3 frac12rdquo square miniature ammeter to monitor onephase of motor primary current Current transformersform are supplied Form G9 for motors above 10 HP20 HP 460 volts

CONTROLLER MODIFICATIONS

Brake Relay Reverse Plugging Controller Only

Arc Inhibitors Pendant Operated Controller

Substitute Type SZF Frequency Relay For ST1 Static

Cabinet Space Heater Controlled By Interlock From M

APPLICATION DATACLASS 6420 EDDYMAG

DYNAMIC MODEL AB-

MOTOR HPRATING

Brake Size

900 RMP Motors

Light DutyServices

SevereDutyServices

7 12 703

10 704

15 704

20 705

25 705

30 705

40 706

50 706

60 706

75 707

100 707

125 707

150 707200 708250 708300 708

ORDERING INFORMATION REQUIRED

5 Motor Secondary Rated Voltage andCurrent6 Controller Modifications Specify FormNumbers

7 Resistors Services Classification8 Master Switch Type and Form Number

AC CRANE CONTROL

23

CLASS

CLASS

CONTROLLER MODIFICATIONSStandard controllers come equipped with the components listedSpecial features to be added to standard controllers are identifiedby Form number Most modifications are self explanatory

list motor isolation circuit breakers for use on duplexcontrollers For operation of the drive on one motor the motorline and connect breakers will disconnect one motor from the lineand connect the frequency relays to the power resistors of the

motor The brakes of the motor not in service are still

lists a 3 frac12rdquo square miniature voltmeter to monitor one

lists a 3 frac12rdquo square miniature ammeter to monitor oneCurrent transformers with this

for motors above 10 HP 230 volt and

PPLICATION DATACLASS 6420 EDDYMAG HOIST

-FLOOR MOUNTED BRAKE

1200 RMP MotorsSevereDutyServices

Light DutyServices

SevereDutyServices

704 703 703

704 703 704

705 704 704

705 704 705

705 705 705

706 705 705

706 705 706

706 706 706

707 706 706

707 706 706

707 707 707

707 707 707

708 707 707708 707 708708 708 708--- 708 708

7 Resistors Services Classification8 Master Switch Type and Form Number

FRONTLINE

24

CLASS

CLASS

CRANE HOOK SPEED VS

CLASS 6421DYNAMIC LO

FIRST

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

O

FSY

NC

HR

ON

OU

SSP

EED

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

SY

NC

HR

ON

OU

SSP

PED

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATACRANE HOOK SPEED VS LOAD PERFORMANCE

CLASS 6420 EDDYMAGreg

CLASS 6421DYNAMIC LOWERING HOIST

FIRST

SECOND

THIRD

FOURTH

FIFTH

FIRST

SECOND

THIRD

FOURTH

FIFTH

40 60 80 100 120 140 160 180

LOAD PERFORMANCE IN OF SYNCHRONOUS SPEED

SECOND

THIRDFOURTH

FIFTH

FIRST

FIRST

SECOND amp THIRD

40 60 80 100 120 140 160 180

LOAD PERFORMANCE IN OF SYNCHRONOUS SPEED

September 2008

200

FIFTH

180 200

September 2008 FRONTLINE

CRANE HOOK SPEEDCLASS 6422 CONTRA

CLASS 6426

SECONDFIRST

FOURTH

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

O

FSY

NC

HR

ON

OU

SSP

EED

FIRST

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

SY

NC

HR

ON

OU

SSP

EED

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATACRANE HOOK SPEED VS LOAD PERFORMANCE

CLASS 6422 CONTRA-TORQUEreg

CLASS 6426 REVERSING HOIST CONTROL(With Mechanical Load Brake)

FIFTH

AUTOMATIC

FOURTH

THIRD

FIRST amp SECOND

SECOND

THIRD

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUS SPEED

SIXTH

SECOND

THIRD

FOURTH

FIFTH

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUSE SPEED

25

CLASS

CLASS

FIFTH

AUTOMATIC

FIRST amp SECOND

180 200

180 200

FRONTLINE

26

CLASS

AC CONTACTOR CONTROL

System AC Contactor Control

Crane Components

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switchradio controlReversing hoistsmechanical load brake gearboxAll other hoist stylesgearbox Best and critical positioning controlrequires E

ResistorsAcceleration resistor setSize based on HP amp duty cycle

Mo

tor

Perf

orm

an

ce

General

Velocity and acceleration is load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

More abrupt speed point

Slowdown

Travel Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

Hoist OFF point slowdown and braking withEddy-Current brakeDB circuitry

OFF Point

Travel No OFF point braking via control

Hoist OFF point braking by Eddybrake CONTRA

Reversing

Travel Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allowsoperation

Hoist Drive is stopped before each changein direction

Power ConsumptionPower dissipated in rotor resistors inspeed points

Component Wear

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Motors Encoders

Requires wound rotor motorNo encoder feedback

Motor blower not typically requiredoperation at reduced motor velocity as fulltorque is not available at zero speed

FRONTLINEreg AC CRANE CONTROL

AC CONTACTOR CONTROL vs DRIVES

AC Contactor Control Variable Frequency Drive

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switch and pendant orradio controlReversing hoists require worm gear ormechanical load brake gearbox

hoist styles require standardgearbox Best and critical positioning control

es Eddy-Current load brake

Inverter-duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limitpendant or radio controlOpen loop hoist controls require worm gear ormechanical load brake gearboxClosed loop hoist controlswith motor encoder feedback

Acceleration resistor set requiredSize based on HP amp duty cycle

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration is load dependantVelocity and acceleration are minimally (open(closed loop) load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

More abrupt speed point transitions Smooth speed point transitions

Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

OFF point slowdown and braking withurrent brake CONTRA-TORQUEreg or

DB circuitry

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

No OFF point braking via control

OFF point braking by Eddy-CurrentCONTRA-TORQUEreg or DB circuitry

OFF point Dynamic Braking (DB)deceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allows reacceleration after relayoperation

Drive is stopped before each changein direction

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speedachieved

Power dissipated in rotor resistors in lowspeed points

Uses less power at reduced velocity and duringacceleration

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Power contactors eliminatedMotor current switched by solidSpare drive recommended

Requires wound rotor motorNo encoder feedback required

Inverter-duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Motor blower not typically required foroperation at reduced motor velocity as fulltorque is not available at zero speed

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and highduty cycles

September 2008

Frequency Drive

duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limit switches master switch

require worm gear ormechanical load brake gearbox

require standard gearbox butwith motor encoder feedback

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration are minimally (open loop) or not(closed loop) load dependant

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

Smooth speed point transitions

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

OFF point Dynamic Braking (DB) with programmabledeceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speed

Uses less power at reduced velocity and during

Power contactors eliminatedMotor current switched by solid-state componentsSpare drive recommended

duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and high

September 2008 FRONTLINE

CLASS 5010 WB DRUM BRAKES

AIST rated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Hold drive stationary when motor is off

Available in 8rdquo to 30rdquo wheel diameters

Torque ratings 100 through 9000 ft-lbs

Corrosion resistant pins are standard on all brake sizes

Grease fittings are standard on 19rdquo 23rdquo and 30rdquo brake sizes

Available with optional self-adjuster

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

AIST rated and suitable for all crane classes

Used on bridge and trolley (horizontal travel) drives

Provide fixed holding torque for parking

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000

Stopping torque ratings up to 300 850 and 1500

Available for AC or DC control systems

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL(Contactor) CONTROLS

Hoist drive styles include Eddy-Current Brakeand Reversing Hoist controls

Reversing Plugging control for bridge and trolley (travel) drives

Meets NEMA Service Classification I

Available in NEMA contactor sizes 2 through 6

Numerous modifications available

Uses Class 8503 Type M Line-ARCreg contactors static timers

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

Meet OSHAamp NEC requirements for AC

Available in continuous ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by

Mechanical amp electrical interlocks prevent switch

CLASS 6170 YOUNGSTOWNreg

HOIST POWER LIMIT SWITCHES

Final safety limits for hoist upper travel

Interrupts motor power directly

Available in ratings up to 500HP at 230VDC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER

FRONTLINEreg AC CRANE CONTROL

ated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Corrosion resistant pins are standard on all brake sizes

andard on 19rdquo 23rdquo and 30rdquo brake sizes

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

ated and suitable for all crane classes

travel) drives

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000 ft-lbs respectively

Stopping torque ratings up to 300 850 and 1500 ft-lbs respectively

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL

Current Brake CONTRA-TORQUEreg AC Dynamic Lowering

bridge and trolley (travel) drives

Available in NEMA contactor sizes 2 through 6 through 300HP for single or multiple motors

contactors static timers and frequency relays for acceleration

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

crane disconnect switch

ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by the enclosure handle

Mechanical amp electrical interlocks prevent switch operation with handle in the OFF position

HOIST POWER LIMIT SWITCHES

to 500HP at 230VDC or up to 400HP at 460VAC and 550VAC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on-line at wwwECandMnet

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER MILL DUTY CONTROL COMPONENTS27

CLASS

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

FRONTLINE

28

CLASS

FRONTLINEreg AC CRANE CONTROL

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

copyCopyright The Electric Controller and Manufacturing Company LLCPrinted in the USA

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

September 2008

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

copyCopyright The Electric Controller and Manufacturing Company LLC 2007

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

Page 13: Ac Crane Control

September 2008 FRONTLINE

WITH CLASSTRAVEL CONTROL

FRONTLINEreg AC CRANE CONTROL

WITH CLASS SQUARE D 8502 TYPE S CONTACTOTRAVEL CONTROL ELEMENTARY DIAGRAM

AC CRANE CONTROL

13

CLASS

8502 TYPE S CONTACTORS

CLASS

FRONTLINE

14

CLASS

WITH CLASS SQUARE DREVERSING HOIST

CLASS

FRONTLINEreg AC CRANE CONTROL

SQUARE D 8502 TYPE S CONTACTORSREVERSING HOIST ELMENTARY DIAGRAM

September 2008

September 2008 FRONTLINE

WITH CLASS SQUARE DDYNAMIC LOWERING HOI

FRONTLINEreg AC CRANE CONTROL

WITH CLASS SQUARE D 8502 TYPE S CONTACTODYNAMIC LOWERING HOIST ELEMENTARY DIAGRAM

AC CRANE CONTROL

15

CLASS

8502 TYPE S CONTACTORSDIAGRAM

CLASS

FRONTLINE

16

CLASS

APPROXIMATE DIMENSIOCLASS 8502 TYPE S CO

OPEN TYPE

DriveMaximum

HP(Volts)

Open Type

Hin

mm

Win

mm

Hoist orTravel

20(380)

401016

24607

40(460)

401016

24607

40(380)

401016

30762

80(460)

401016

30762

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMENSIONS AND WEIGHTSCLASS 8502 TYPE S CONTACTORS

ENCLOSED TYPE

Open Type Enclosed Type

Cin

mm

NetWeightlbskg

Hin

mm

Win

mm

85216

1506842

106730762

85216

1506842

106730762

10254

2009142

106736914

10254

2009142

106736914

September 2008

ENCLOSED TYPE

Enclosed Type

Din

mm

NetWeightlbskg

15381

300136

15381

300136

15381

385175

15381

385175

September 2008 FRONTLINE

A set of TABWELDreg resistors are required forapplications

RESISTOR APPLICATION

For resistors mounted in racks unwired ndash refer to Class 6715

Class 151 and 152 is recommended for light crane duty

Class 161 and 162 is recommended for standard duty

Class 171 and172 is recommended for severe duty

For explanation of NEMA resistor classifications

CLASS 6715 RESISTORS

To order an AC acceleration resistor set for use with duplex Cpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V andat 67A

Controller Class EnclosureMotorRating

ControlScheme

Code Type Code Code

6420 A0None N

ldquoHrdquo(HP)

6421 A16422 A2

Open O6426 A6

Hoist6435

A7Nema

1G

ldquoKrdquo(kw)

Travel6435

A8Nema

3RW

CustomerDesign

A99NemaScreenCovers

C

NEMA ClassSpeed Points

System VoltageMotor Rated Voltage

Class 6715

Controller TypeEnclosure

Motor Power

Motor ConfigurationRotor Volts

Rotor Amps

FRONTLINEreg AC CRANE CONTROL

SELECTION AND APPLICATIONe required for each AC motor control The following table is for selecting resistor for all AC motor control

RESISTOR APPLICATION

refer to Class 6715

Class 151 and 152 is recommended for light crane duty

Class 161 and 162 is recommended for standard duty

Class 171 and172 is recommended for severe duty

For explanation of NEMA resistor classifications ndash refer to Class 6715

CLASS

CLASS 6715 RESISTORS SELECTION TABLE

EXAMPLE AC RESISTOR SETTo order an AC acceleration resistor set for use with duplex CONTRA-TORQUE hoist (2 motors in parallel) NEMA 161 duty cycle 5 speedpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V and

CLASS 6715 RESISTOR SELECTION TABLE

NEMA DUTYSpeedPoints

NO

SystemVoltage

MotorRated

Voltage

Class Code Code V Code V Code

151 A3 208 2 208 2152 B

161 C

162 D4 380 3 380 3171 E

172 F91 G

5460 4 460 4

92 H

CustomerDesign

CS 575 5 575 56

4 4A2 G 37K C 5Class 6715

AC CRANE CONTROL

17

CLASS

The following table is for selecting resistor for all AC motor control

6715

hoist (2 motors in parallel) NEMA 161 duty cycle 5 speedpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V and rotor amps

MotorConfiguration

Ro

tor

Ro

tor

Code Type Code

Simplex S

Vo

lts

Am

psDuplex D

Quadruplex Q

4 D 350V 67A

CLASS

FRONTLINE

18

CLASS

APPROXIMATE NUMBER OCLASS 6715 TABWELD R

This tabulation is based on ECampM resistor designs for use with Class 6420 6421 6422 6426 controllerstabulation is for typical drive loading and for motors with standard NEMA secondary values of voltage andconsult factory with actual motor data

Max HPRating Single

Motor

6420Hoist

161 171 152

5 2 2 1

7 12 2 2 1

10 2 2 1

15 2 3 2

20 3 3 2

25 2 3 2

30 3 3 2

40 3 4 2

50 4 6 2

60 4 6 3

75 6 12 4

100 7 9 4

125 8 12 6

150 12 15 6

200 12 18 9

250 12 21 9

This tabulation is based on ECampM resistor designs for use with Class 6435drive loading and for motors with standard NEMA secondary values of voltage and

MaximumHP

HoistDynamic Lowering

NEMA Class152 162

5 1 175 1 110 1 215 2 220 2 225 2 330 2 340 3 350 3 460 3 475 4 6

NEMA SERVICE CLASSIF

Standard 6435 controllers meet the requirements of NEMA Services Crequirements of NEMA service classifications I (CMAA Sspeed point modification Form M3

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE NUMBER OF SEPARATELY MOUNTED STANDARSCLASS 6715 TABWELD RESISTOR SECTIONS (265rdquo LONG)

resistor designs for use with Class 6420 6421 6422 6426 controllers and is for estimatetabulation is for typical drive loading and for motors with standard NEMA secondary values of voltage and current For act

6421Hoist

6422Hoist

162 172 161 171 152

1 1 2 2 1

1 2 2 2 1

2 2 3 3 1

2 2 3 4 2

2 2 4 5 2

2 3 4 6 2

2 3 5 7 2

2 3 6 7 3

2 4 7 9 3

3 4 8 9 3

4 6 9 13 4

5 7 12 18 4

6 9 14 21 7

6 9 18 30 9

9 12 24 36 9

12 15 30 42 12

r designs for use with Class 6435 controller and is for estimate only This tabulation is fordrive loading and for motors with standard NEMA secondary values of voltage and current For actual quantities consult factory

HoistReversing

TravelReverse Plugging

NEMA Class NEMA Class152 162 1521 1 11 1 11 1 11 2 11 2 22 3 22 3 33 3 33 4 33 4 44 6 4

NEMA SERVICE CLASSIFICATIONS

meet the requirements of NEMA Services Classification II (CMAA service classifications A2 and B) to meet theervice classifications I (CMAA Service Classifications A1 C D E and F) the controller must be priced with the 5

September 2008

STANDARS

estimate only Thiscurrent For actual quantities

6426Hoist Bridge or Trolley

162 172

1 1

1 1

1 2

2 2

2 2

2 3

3 3

3 4

4 4

4 4

4 5

6 9

9 9

9 12

12 15

15 18

This tabulation is for typicalFor actual quantities consult factory

TravelReverse Plugging

NEMA Class162

11222334456

lassification II (CMAA service classifications A2 and B) to meet theE and F) the controller must be priced with the 5th

September 2008 FRONTLINE

MASTER SWITCHES AND

Class 9004 Type VGMaster Switch

CLASS 9004 VM OR CM

Control Class Speed Points

6420556

642156

642256

6426556

Motion Speed PointsHoist

(Dynamic Lowering)45

Hoist(Reversing)

45

Travel(Reverse Plugging)

45

Refer to Class 9004 catalog for more information

FRONTLINEreg AC CRANE CONTROL

GENERAL INFORMATIONMASTER SWITCHES AND MODIFICATIONS

Class 9004 Type CGMaster Switch

CLASS 9004 VM OR CM NEMA 1 ENCLOSED

oints Form VM TYPE

C1VG9

VG12

B1VG12VG16

D1VG12VG16

A1VG9

VG12

CONTROL 6435Form MA VM

A2AG9 VG9AG9 VG9

A3AG6 VG6AG9 VG9

A3AG6 VG6AG9 VG9

Refer to Class 9004 catalog for more information

AC CRANE CONTROL

19

CLASS

Class 9004 Type CGMaster Switch

CM TYPE

CG12CG12CG12CM16CG12CG16

CG12CG12

VM CMVG9 CG8VG9 CG12VG6 CG6VG9 CG8VG6 CG6VG9 CG8

CLASS

FRONTLINE

20

CLASS

GENERALMANUAL MAGNETIC DISC

The manual magnetic disconnect switch is used for protecting electrical crane circuits exOHSA requirements for a crane disconnect switchThe standard disconnect switch consists of

3mdashClass 8503 Type M form Y781 (with silver faced power contacttips) SPNO contactors The contactors are mechanically tiedOne normally open and one normally closed electricalinterlocks are included for indicating lights

1mdashTwo pole control molded case switch with padlock clip (1mdash460380230 to 255 volt fused control circuit transformer (1mdashIntermediate relay (CR)1mdashClass 9999AI1 Arc Suppressor

Volts5060Hz

NEMAContactor

Size

MaxAmperes

380or

460

4 1505 3006 6008 1350

Form

F30A

3 Main Line Power FusesStart-Stop Push Button

X11Additional Control CircuitNC interlocks can be added

A3 ldquoOnOffrdquo PushbuttonP1 Red ldquoOnrdquo Pilot LightP2 Green ldquoOffrdquo Pilot LightT12 200VA Additional Transformer Capacity

Class L fuse mounting is standard Customer

PILOT DEVICESThe pilot devices should be selected so the current rating is adequate for controlling the disconnect switch For coil9998 Coil Data catalog sheets An arc inhibitor may be required depending upon the ra

DISCONNEWhen applied to cranes the continuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated currentrequired by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

ORDERING INFORMATION REQUIRED1 Class2 Type3 Voltage4 Controller Modifications Specify Form

CLASS

FRONTLINEreg AC CRANE CONTROL

GENERAL INFORMATIONMANUAL MAGNETIC DISCONNECTS SWITCHES

etic disconnect switch is used for protecting electrical crane circuits except lifting magnet circuits The disconnect meets

ype M form Y781 (with silver faced power contacttips) SPNO contactors The contactors are mechanically tiedOne normally open and one normally closed electrical

case switch with padlock clip (CMCS)volt fused control circuit transformer (CTR)

CAM OPERATOR PREVENTSFROM CLOSING WHEN HANDLE IS IN OFFPOSITION

CONTACTORS OPERATED REMOTELY OR BYHANDLE ON THE ENCLOSURE

Amperes

Enclosures

General PurposeNEMA Type 1 gasketed

Dusttight NEMA Type 12Outdoor NEMA Type 3R

MFS12 MFA12MGS12 MGA12MHS12 MHA12MKS12 MKA12

MODIFICATIONSDescription

Main Line Power FusesStop Push Button

Additional Control Circuit Interlocks A maximum of 4 NONC interlocks can be added

Offrdquo PushbuttonRed ldquoOnrdquo Pilot LightGreen ldquoOffrdquo Pilot Light200VA Additional Transformer Capacity

Class L fuse mounting is standard Customer is to supply fuse rating

PILOT DEVICES SELECTIONThe pilot devices should be selected so the current rating is adequate for controlling the disconnect switch For coil currents9998 Coil Data catalog sheets An arc inhibitor may be required depending upon the ratings of the pilot device

DISCONNECT SWITCH SELECTIONcontinuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated current

required by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

September 2008

t lifting magnet circuits The disconnect meets

AM OPERATOR PREVENTS CONTACTORFROM CLOSING WHEN HANDLE IS IN OFF

ORS OPERATED REMOTELY OR BYHANDLE ON THE ENCLOSURE

currents refer to Class

continuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated currentrequired by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

September 2008 FRONTLINE

MANUAL MAGNETIC DISC

FRONTLINEreg AC CRANE CONTROL

MANUAL MAGNETIC DISCONNECT ELEMENTARY DIAGRA

AC CRANE CONTROL

21

CLASS

AGRAM

CLASS

FRONTLINE

22

CLASS

APPROXIMATE DIMESION

NEMASize

ContinuousAmpereRating A B C D

4 15018457

5127

8203

19483

5 30014356

3589

45114

28711

6 60018457

5127

8203

19483

8 135014356

5127

8203

28712

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMESIONS AND WEIGHTS

D E F G H J K L M

19483

30762

36914

2864727

315800

33838

3589

16229

36914

28711

33838

36914

267678

345876

36914

7178

72183

36914

19483

421067

421067

322818

4351105

451143

3589

10483

421067

28712

57838

441118

363922

345864

36914

70178

59137

741275

September 2008

M N

NetWeight

36914

15381

21096

36914

20508

235107

421067

20508

285130

741275

28508

300138

September 2008 FRONTLINE

MULTIMOTOR DRIVESTwo motors connected in parallel (duplex)control primary equipment and two sets of motor controlsecondary equipment are required in the controller Two sets ofpower resistors are also required

Four motors connected in parallel (quadruplex)necessary to double the duplex controller price given for twomotors in parallel One set of motor control primary and four setsof motor control secondary equipment are required Four sets opower resistors are required

CONTROLLERSNarrow width controllers ndash Most controllers ara narrow width construction These controllers when compared tostandard controllers are reduced width and increased height Fordetails see controller modifications and controller dimension

CONTROLLER MODIFICAT

Form Description

D6 Motor Isolating Circuit Breakers

B5 Brake Relay Reverse Plugging Controller Only

Y17 Arc Inhibitors Pendant Operated Controller

G95 Miniature Voltmeter Panel Mounted

G91 Miniature Ammeter Panel Mounted

E18 Narrow Width Panel

M24Substitute Type SZF Frequency Relay For ST1 StaticAcceleration Timers

H18Cabinet Space Heater Controlled By Interlock From MContactor

For Duplex Controllers For Duplex controllers multiply price by 2

1 Class2 Type3 Motor Horsepower4 Motor Primary Rated Voltage and Current

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATA

MULTIMOTOR DRIVESTwo motors connected in parallel (duplex) ndash One set of motorcontrol primary equipment and two sets of motor controlsecondary equipment are required in the controller Two sets of

Four motors connected in parallel (quadruplex) ndash It islex controller price given for two

motors in parallel One set of motor control primary and four setsof motor control secondary equipment are required Four sets of

CONTROLLERSMost controllers are also available in

a narrow width construction These controllers when compared tostandard controllers are reduced width and increased height For

see controller modifications and controller dimension

CONTROLLER MStandard controllers come equipped with the components listedSpecial features to be added to standard controllers are identifiedby Form number Most modifications are self

FORM D6 list motor isolation circuit breakers for use on duplexcontrollers For operation of the drive on one motor the motorline and connect breakers will disconnect one motor from the lineand connect the frequency relays to the power resistors of theother motor The brakes of the motor not in service are stillreleased electrically

FORM G95 lists a 3 frac12rdquo square miniature voltmeter to monitor onephase of motor primary voltage

FORM G9 lists a 3 frac12rdquo square miniature ammeter to monitor onephase of motor primary current Current transformersform are supplied Form G9 for motors above 10 HP20 HP 460 volts

CONTROLLER MODIFICATIONS

Brake Relay Reverse Plugging Controller Only

Arc Inhibitors Pendant Operated Controller

Substitute Type SZF Frequency Relay For ST1 Static

Cabinet Space Heater Controlled By Interlock From M

APPLICATION DATACLASS 6420 EDDYMAG

DYNAMIC MODEL AB-

MOTOR HPRATING

Brake Size

900 RMP Motors

Light DutyServices

SevereDutyServices

7 12 703

10 704

15 704

20 705

25 705

30 705

40 706

50 706

60 706

75 707

100 707

125 707

150 707200 708250 708300 708

ORDERING INFORMATION REQUIRED

5 Motor Secondary Rated Voltage andCurrent6 Controller Modifications Specify FormNumbers

7 Resistors Services Classification8 Master Switch Type and Form Number

AC CRANE CONTROL

23

CLASS

CLASS

CONTROLLER MODIFICATIONSStandard controllers come equipped with the components listedSpecial features to be added to standard controllers are identifiedby Form number Most modifications are self explanatory

list motor isolation circuit breakers for use on duplexcontrollers For operation of the drive on one motor the motorline and connect breakers will disconnect one motor from the lineand connect the frequency relays to the power resistors of the

motor The brakes of the motor not in service are still

lists a 3 frac12rdquo square miniature voltmeter to monitor one

lists a 3 frac12rdquo square miniature ammeter to monitor oneCurrent transformers with this

for motors above 10 HP 230 volt and

PPLICATION DATACLASS 6420 EDDYMAG HOIST

-FLOOR MOUNTED BRAKE

1200 RMP MotorsSevereDutyServices

Light DutyServices

SevereDutyServices

704 703 703

704 703 704

705 704 704

705 704 705

705 705 705

706 705 705

706 705 706

706 706 706

707 706 706

707 706 706

707 707 707

707 707 707

708 707 707708 707 708708 708 708--- 708 708

7 Resistors Services Classification8 Master Switch Type and Form Number

FRONTLINE

24

CLASS

CLASS

CRANE HOOK SPEED VS

CLASS 6421DYNAMIC LO

FIRST

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

O

FSY

NC

HR

ON

OU

SSP

EED

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

SY

NC

HR

ON

OU

SSP

PED

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATACRANE HOOK SPEED VS LOAD PERFORMANCE

CLASS 6420 EDDYMAGreg

CLASS 6421DYNAMIC LOWERING HOIST

FIRST

SECOND

THIRD

FOURTH

FIFTH

FIRST

SECOND

THIRD

FOURTH

FIFTH

40 60 80 100 120 140 160 180

LOAD PERFORMANCE IN OF SYNCHRONOUS SPEED

SECOND

THIRDFOURTH

FIFTH

FIRST

FIRST

SECOND amp THIRD

40 60 80 100 120 140 160 180

LOAD PERFORMANCE IN OF SYNCHRONOUS SPEED

September 2008

200

FIFTH

180 200

September 2008 FRONTLINE

CRANE HOOK SPEEDCLASS 6422 CONTRA

CLASS 6426

SECONDFIRST

FOURTH

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

O

FSY

NC

HR

ON

OU

SSP

EED

FIRST

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

SY

NC

HR

ON

OU

SSP

EED

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATACRANE HOOK SPEED VS LOAD PERFORMANCE

CLASS 6422 CONTRA-TORQUEreg

CLASS 6426 REVERSING HOIST CONTROL(With Mechanical Load Brake)

FIFTH

AUTOMATIC

FOURTH

THIRD

FIRST amp SECOND

SECOND

THIRD

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUS SPEED

SIXTH

SECOND

THIRD

FOURTH

FIFTH

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUSE SPEED

25

CLASS

CLASS

FIFTH

AUTOMATIC

FIRST amp SECOND

180 200

180 200

FRONTLINE

26

CLASS

AC CONTACTOR CONTROL

System AC Contactor Control

Crane Components

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switchradio controlReversing hoistsmechanical load brake gearboxAll other hoist stylesgearbox Best and critical positioning controlrequires E

ResistorsAcceleration resistor setSize based on HP amp duty cycle

Mo

tor

Perf

orm

an

ce

General

Velocity and acceleration is load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

More abrupt speed point

Slowdown

Travel Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

Hoist OFF point slowdown and braking withEddy-Current brakeDB circuitry

OFF Point

Travel No OFF point braking via control

Hoist OFF point braking by Eddybrake CONTRA

Reversing

Travel Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allowsoperation

Hoist Drive is stopped before each changein direction

Power ConsumptionPower dissipated in rotor resistors inspeed points

Component Wear

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Motors Encoders

Requires wound rotor motorNo encoder feedback

Motor blower not typically requiredoperation at reduced motor velocity as fulltorque is not available at zero speed

FRONTLINEreg AC CRANE CONTROL

AC CONTACTOR CONTROL vs DRIVES

AC Contactor Control Variable Frequency Drive

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switch and pendant orradio controlReversing hoists require worm gear ormechanical load brake gearbox

hoist styles require standardgearbox Best and critical positioning control

es Eddy-Current load brake

Inverter-duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limitpendant or radio controlOpen loop hoist controls require worm gear ormechanical load brake gearboxClosed loop hoist controlswith motor encoder feedback

Acceleration resistor set requiredSize based on HP amp duty cycle

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration is load dependantVelocity and acceleration are minimally (open(closed loop) load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

More abrupt speed point transitions Smooth speed point transitions

Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

OFF point slowdown and braking withurrent brake CONTRA-TORQUEreg or

DB circuitry

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

No OFF point braking via control

OFF point braking by Eddy-CurrentCONTRA-TORQUEreg or DB circuitry

OFF point Dynamic Braking (DB)deceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allows reacceleration after relayoperation

Drive is stopped before each changein direction

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speedachieved

Power dissipated in rotor resistors in lowspeed points

Uses less power at reduced velocity and duringacceleration

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Power contactors eliminatedMotor current switched by solidSpare drive recommended

Requires wound rotor motorNo encoder feedback required

Inverter-duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Motor blower not typically required foroperation at reduced motor velocity as fulltorque is not available at zero speed

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and highduty cycles

September 2008

Frequency Drive

duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limit switches master switch

require worm gear ormechanical load brake gearbox

require standard gearbox butwith motor encoder feedback

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration are minimally (open loop) or not(closed loop) load dependant

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

Smooth speed point transitions

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

OFF point Dynamic Braking (DB) with programmabledeceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speed

Uses less power at reduced velocity and during

Power contactors eliminatedMotor current switched by solid-state componentsSpare drive recommended

duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and high

September 2008 FRONTLINE

CLASS 5010 WB DRUM BRAKES

AIST rated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Hold drive stationary when motor is off

Available in 8rdquo to 30rdquo wheel diameters

Torque ratings 100 through 9000 ft-lbs

Corrosion resistant pins are standard on all brake sizes

Grease fittings are standard on 19rdquo 23rdquo and 30rdquo brake sizes

Available with optional self-adjuster

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

AIST rated and suitable for all crane classes

Used on bridge and trolley (horizontal travel) drives

Provide fixed holding torque for parking

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000

Stopping torque ratings up to 300 850 and 1500

Available for AC or DC control systems

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL(Contactor) CONTROLS

Hoist drive styles include Eddy-Current Brakeand Reversing Hoist controls

Reversing Plugging control for bridge and trolley (travel) drives

Meets NEMA Service Classification I

Available in NEMA contactor sizes 2 through 6

Numerous modifications available

Uses Class 8503 Type M Line-ARCreg contactors static timers

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

Meet OSHAamp NEC requirements for AC

Available in continuous ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by

Mechanical amp electrical interlocks prevent switch

CLASS 6170 YOUNGSTOWNreg

HOIST POWER LIMIT SWITCHES

Final safety limits for hoist upper travel

Interrupts motor power directly

Available in ratings up to 500HP at 230VDC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER

FRONTLINEreg AC CRANE CONTROL

ated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Corrosion resistant pins are standard on all brake sizes

andard on 19rdquo 23rdquo and 30rdquo brake sizes

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

ated and suitable for all crane classes

travel) drives

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000 ft-lbs respectively

Stopping torque ratings up to 300 850 and 1500 ft-lbs respectively

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL

Current Brake CONTRA-TORQUEreg AC Dynamic Lowering

bridge and trolley (travel) drives

Available in NEMA contactor sizes 2 through 6 through 300HP for single or multiple motors

contactors static timers and frequency relays for acceleration

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

crane disconnect switch

ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by the enclosure handle

Mechanical amp electrical interlocks prevent switch operation with handle in the OFF position

HOIST POWER LIMIT SWITCHES

to 500HP at 230VDC or up to 400HP at 460VAC and 550VAC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on-line at wwwECandMnet

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER MILL DUTY CONTROL COMPONENTS27

CLASS

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

FRONTLINE

28

CLASS

FRONTLINEreg AC CRANE CONTROL

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

copyCopyright The Electric Controller and Manufacturing Company LLCPrinted in the USA

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

September 2008

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

copyCopyright The Electric Controller and Manufacturing Company LLC 2007

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

Page 14: Ac Crane Control

FRONTLINE

14

CLASS

WITH CLASS SQUARE DREVERSING HOIST

CLASS

FRONTLINEreg AC CRANE CONTROL

SQUARE D 8502 TYPE S CONTACTORSREVERSING HOIST ELMENTARY DIAGRAM

September 2008

September 2008 FRONTLINE

WITH CLASS SQUARE DDYNAMIC LOWERING HOI

FRONTLINEreg AC CRANE CONTROL

WITH CLASS SQUARE D 8502 TYPE S CONTACTODYNAMIC LOWERING HOIST ELEMENTARY DIAGRAM

AC CRANE CONTROL

15

CLASS

8502 TYPE S CONTACTORSDIAGRAM

CLASS

FRONTLINE

16

CLASS

APPROXIMATE DIMENSIOCLASS 8502 TYPE S CO

OPEN TYPE

DriveMaximum

HP(Volts)

Open Type

Hin

mm

Win

mm

Hoist orTravel

20(380)

401016

24607

40(460)

401016

24607

40(380)

401016

30762

80(460)

401016

30762

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMENSIONS AND WEIGHTSCLASS 8502 TYPE S CONTACTORS

ENCLOSED TYPE

Open Type Enclosed Type

Cin

mm

NetWeightlbskg

Hin

mm

Win

mm

85216

1506842

106730762

85216

1506842

106730762

10254

2009142

106736914

10254

2009142

106736914

September 2008

ENCLOSED TYPE

Enclosed Type

Din

mm

NetWeightlbskg

15381

300136

15381

300136

15381

385175

15381

385175

September 2008 FRONTLINE

A set of TABWELDreg resistors are required forapplications

RESISTOR APPLICATION

For resistors mounted in racks unwired ndash refer to Class 6715

Class 151 and 152 is recommended for light crane duty

Class 161 and 162 is recommended for standard duty

Class 171 and172 is recommended for severe duty

For explanation of NEMA resistor classifications

CLASS 6715 RESISTORS

To order an AC acceleration resistor set for use with duplex Cpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V andat 67A

Controller Class EnclosureMotorRating

ControlScheme

Code Type Code Code

6420 A0None N

ldquoHrdquo(HP)

6421 A16422 A2

Open O6426 A6

Hoist6435

A7Nema

1G

ldquoKrdquo(kw)

Travel6435

A8Nema

3RW

CustomerDesign

A99NemaScreenCovers

C

NEMA ClassSpeed Points

System VoltageMotor Rated Voltage

Class 6715

Controller TypeEnclosure

Motor Power

Motor ConfigurationRotor Volts

Rotor Amps

FRONTLINEreg AC CRANE CONTROL

SELECTION AND APPLICATIONe required for each AC motor control The following table is for selecting resistor for all AC motor control

RESISTOR APPLICATION

refer to Class 6715

Class 151 and 152 is recommended for light crane duty

Class 161 and 162 is recommended for standard duty

Class 171 and172 is recommended for severe duty

For explanation of NEMA resistor classifications ndash refer to Class 6715

CLASS

CLASS 6715 RESISTORS SELECTION TABLE

EXAMPLE AC RESISTOR SETTo order an AC acceleration resistor set for use with duplex CONTRA-TORQUE hoist (2 motors in parallel) NEMA 161 duty cycle 5 speedpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V and

CLASS 6715 RESISTOR SELECTION TABLE

NEMA DUTYSpeedPoints

NO

SystemVoltage

MotorRated

Voltage

Class Code Code V Code V Code

151 A3 208 2 208 2152 B

161 C

162 D4 380 3 380 3171 E

172 F91 G

5460 4 460 4

92 H

CustomerDesign

CS 575 5 575 56

4 4A2 G 37K C 5Class 6715

AC CRANE CONTROL

17

CLASS

The following table is for selecting resistor for all AC motor control

6715

hoist (2 motors in parallel) NEMA 161 duty cycle 5 speedpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V and rotor amps

MotorConfiguration

Ro

tor

Ro

tor

Code Type Code

Simplex S

Vo

lts

Am

psDuplex D

Quadruplex Q

4 D 350V 67A

CLASS

FRONTLINE

18

CLASS

APPROXIMATE NUMBER OCLASS 6715 TABWELD R

This tabulation is based on ECampM resistor designs for use with Class 6420 6421 6422 6426 controllerstabulation is for typical drive loading and for motors with standard NEMA secondary values of voltage andconsult factory with actual motor data

Max HPRating Single

Motor

6420Hoist

161 171 152

5 2 2 1

7 12 2 2 1

10 2 2 1

15 2 3 2

20 3 3 2

25 2 3 2

30 3 3 2

40 3 4 2

50 4 6 2

60 4 6 3

75 6 12 4

100 7 9 4

125 8 12 6

150 12 15 6

200 12 18 9

250 12 21 9

This tabulation is based on ECampM resistor designs for use with Class 6435drive loading and for motors with standard NEMA secondary values of voltage and

MaximumHP

HoistDynamic Lowering

NEMA Class152 162

5 1 175 1 110 1 215 2 220 2 225 2 330 2 340 3 350 3 460 3 475 4 6

NEMA SERVICE CLASSIF

Standard 6435 controllers meet the requirements of NEMA Services Crequirements of NEMA service classifications I (CMAA Sspeed point modification Form M3

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE NUMBER OF SEPARATELY MOUNTED STANDARSCLASS 6715 TABWELD RESISTOR SECTIONS (265rdquo LONG)

resistor designs for use with Class 6420 6421 6422 6426 controllers and is for estimatetabulation is for typical drive loading and for motors with standard NEMA secondary values of voltage and current For act

6421Hoist

6422Hoist

162 172 161 171 152

1 1 2 2 1

1 2 2 2 1

2 2 3 3 1

2 2 3 4 2

2 2 4 5 2

2 3 4 6 2

2 3 5 7 2

2 3 6 7 3

2 4 7 9 3

3 4 8 9 3

4 6 9 13 4

5 7 12 18 4

6 9 14 21 7

6 9 18 30 9

9 12 24 36 9

12 15 30 42 12

r designs for use with Class 6435 controller and is for estimate only This tabulation is fordrive loading and for motors with standard NEMA secondary values of voltage and current For actual quantities consult factory

HoistReversing

TravelReverse Plugging

NEMA Class NEMA Class152 162 1521 1 11 1 11 1 11 2 11 2 22 3 22 3 33 3 33 4 33 4 44 6 4

NEMA SERVICE CLASSIFICATIONS

meet the requirements of NEMA Services Classification II (CMAA service classifications A2 and B) to meet theervice classifications I (CMAA Service Classifications A1 C D E and F) the controller must be priced with the 5

September 2008

STANDARS

estimate only Thiscurrent For actual quantities

6426Hoist Bridge or Trolley

162 172

1 1

1 1

1 2

2 2

2 2

2 3

3 3

3 4

4 4

4 4

4 5

6 9

9 9

9 12

12 15

15 18

This tabulation is for typicalFor actual quantities consult factory

TravelReverse Plugging

NEMA Class162

11222334456

lassification II (CMAA service classifications A2 and B) to meet theE and F) the controller must be priced with the 5th

September 2008 FRONTLINE

MASTER SWITCHES AND

Class 9004 Type VGMaster Switch

CLASS 9004 VM OR CM

Control Class Speed Points

6420556

642156

642256

6426556

Motion Speed PointsHoist

(Dynamic Lowering)45

Hoist(Reversing)

45

Travel(Reverse Plugging)

45

Refer to Class 9004 catalog for more information

FRONTLINEreg AC CRANE CONTROL

GENERAL INFORMATIONMASTER SWITCHES AND MODIFICATIONS

Class 9004 Type CGMaster Switch

CLASS 9004 VM OR CM NEMA 1 ENCLOSED

oints Form VM TYPE

C1VG9

VG12

B1VG12VG16

D1VG12VG16

A1VG9

VG12

CONTROL 6435Form MA VM

A2AG9 VG9AG9 VG9

A3AG6 VG6AG9 VG9

A3AG6 VG6AG9 VG9

Refer to Class 9004 catalog for more information

AC CRANE CONTROL

19

CLASS

Class 9004 Type CGMaster Switch

CM TYPE

CG12CG12CG12CM16CG12CG16

CG12CG12

VM CMVG9 CG8VG9 CG12VG6 CG6VG9 CG8VG6 CG6VG9 CG8

CLASS

FRONTLINE

20

CLASS

GENERALMANUAL MAGNETIC DISC

The manual magnetic disconnect switch is used for protecting electrical crane circuits exOHSA requirements for a crane disconnect switchThe standard disconnect switch consists of

3mdashClass 8503 Type M form Y781 (with silver faced power contacttips) SPNO contactors The contactors are mechanically tiedOne normally open and one normally closed electricalinterlocks are included for indicating lights

1mdashTwo pole control molded case switch with padlock clip (1mdash460380230 to 255 volt fused control circuit transformer (1mdashIntermediate relay (CR)1mdashClass 9999AI1 Arc Suppressor

Volts5060Hz

NEMAContactor

Size

MaxAmperes

380or

460

4 1505 3006 6008 1350

Form

F30A

3 Main Line Power FusesStart-Stop Push Button

X11Additional Control CircuitNC interlocks can be added

A3 ldquoOnOffrdquo PushbuttonP1 Red ldquoOnrdquo Pilot LightP2 Green ldquoOffrdquo Pilot LightT12 200VA Additional Transformer Capacity

Class L fuse mounting is standard Customer

PILOT DEVICESThe pilot devices should be selected so the current rating is adequate for controlling the disconnect switch For coil9998 Coil Data catalog sheets An arc inhibitor may be required depending upon the ra

DISCONNEWhen applied to cranes the continuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated currentrequired by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

ORDERING INFORMATION REQUIRED1 Class2 Type3 Voltage4 Controller Modifications Specify Form

CLASS

FRONTLINEreg AC CRANE CONTROL

GENERAL INFORMATIONMANUAL MAGNETIC DISCONNECTS SWITCHES

etic disconnect switch is used for protecting electrical crane circuits except lifting magnet circuits The disconnect meets

ype M form Y781 (with silver faced power contacttips) SPNO contactors The contactors are mechanically tiedOne normally open and one normally closed electrical

case switch with padlock clip (CMCS)volt fused control circuit transformer (CTR)

CAM OPERATOR PREVENTSFROM CLOSING WHEN HANDLE IS IN OFFPOSITION

CONTACTORS OPERATED REMOTELY OR BYHANDLE ON THE ENCLOSURE

Amperes

Enclosures

General PurposeNEMA Type 1 gasketed

Dusttight NEMA Type 12Outdoor NEMA Type 3R

MFS12 MFA12MGS12 MGA12MHS12 MHA12MKS12 MKA12

MODIFICATIONSDescription

Main Line Power FusesStop Push Button

Additional Control Circuit Interlocks A maximum of 4 NONC interlocks can be added

Offrdquo PushbuttonRed ldquoOnrdquo Pilot LightGreen ldquoOffrdquo Pilot Light200VA Additional Transformer Capacity

Class L fuse mounting is standard Customer is to supply fuse rating

PILOT DEVICES SELECTIONThe pilot devices should be selected so the current rating is adequate for controlling the disconnect switch For coil currents9998 Coil Data catalog sheets An arc inhibitor may be required depending upon the ratings of the pilot device

DISCONNECT SWITCH SELECTIONcontinuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated current

required by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

September 2008

t lifting magnet circuits The disconnect meets

AM OPERATOR PREVENTS CONTACTORFROM CLOSING WHEN HANDLE IS IN OFF

ORS OPERATED REMOTELY OR BYHANDLE ON THE ENCLOSURE

currents refer to Class

continuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated currentrequired by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

September 2008 FRONTLINE

MANUAL MAGNETIC DISC

FRONTLINEreg AC CRANE CONTROL

MANUAL MAGNETIC DISCONNECT ELEMENTARY DIAGRA

AC CRANE CONTROL

21

CLASS

AGRAM

CLASS

FRONTLINE

22

CLASS

APPROXIMATE DIMESION

NEMASize

ContinuousAmpereRating A B C D

4 15018457

5127

8203

19483

5 30014356

3589

45114

28711

6 60018457

5127

8203

19483

8 135014356

5127

8203

28712

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMESIONS AND WEIGHTS

D E F G H J K L M

19483

30762

36914

2864727

315800

33838

3589

16229

36914

28711

33838

36914

267678

345876

36914

7178

72183

36914

19483

421067

421067

322818

4351105

451143

3589

10483

421067

28712

57838

441118

363922

345864

36914

70178

59137

741275

September 2008

M N

NetWeight

36914

15381

21096

36914

20508

235107

421067

20508

285130

741275

28508

300138

September 2008 FRONTLINE

MULTIMOTOR DRIVESTwo motors connected in parallel (duplex)control primary equipment and two sets of motor controlsecondary equipment are required in the controller Two sets ofpower resistors are also required

Four motors connected in parallel (quadruplex)necessary to double the duplex controller price given for twomotors in parallel One set of motor control primary and four setsof motor control secondary equipment are required Four sets opower resistors are required

CONTROLLERSNarrow width controllers ndash Most controllers ara narrow width construction These controllers when compared tostandard controllers are reduced width and increased height Fordetails see controller modifications and controller dimension

CONTROLLER MODIFICAT

Form Description

D6 Motor Isolating Circuit Breakers

B5 Brake Relay Reverse Plugging Controller Only

Y17 Arc Inhibitors Pendant Operated Controller

G95 Miniature Voltmeter Panel Mounted

G91 Miniature Ammeter Panel Mounted

E18 Narrow Width Panel

M24Substitute Type SZF Frequency Relay For ST1 StaticAcceleration Timers

H18Cabinet Space Heater Controlled By Interlock From MContactor

For Duplex Controllers For Duplex controllers multiply price by 2

1 Class2 Type3 Motor Horsepower4 Motor Primary Rated Voltage and Current

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATA

MULTIMOTOR DRIVESTwo motors connected in parallel (duplex) ndash One set of motorcontrol primary equipment and two sets of motor controlsecondary equipment are required in the controller Two sets of

Four motors connected in parallel (quadruplex) ndash It islex controller price given for two

motors in parallel One set of motor control primary and four setsof motor control secondary equipment are required Four sets of

CONTROLLERSMost controllers are also available in

a narrow width construction These controllers when compared tostandard controllers are reduced width and increased height For

see controller modifications and controller dimension

CONTROLLER MStandard controllers come equipped with the components listedSpecial features to be added to standard controllers are identifiedby Form number Most modifications are self

FORM D6 list motor isolation circuit breakers for use on duplexcontrollers For operation of the drive on one motor the motorline and connect breakers will disconnect one motor from the lineand connect the frequency relays to the power resistors of theother motor The brakes of the motor not in service are stillreleased electrically

FORM G95 lists a 3 frac12rdquo square miniature voltmeter to monitor onephase of motor primary voltage

FORM G9 lists a 3 frac12rdquo square miniature ammeter to monitor onephase of motor primary current Current transformersform are supplied Form G9 for motors above 10 HP20 HP 460 volts

CONTROLLER MODIFICATIONS

Brake Relay Reverse Plugging Controller Only

Arc Inhibitors Pendant Operated Controller

Substitute Type SZF Frequency Relay For ST1 Static

Cabinet Space Heater Controlled By Interlock From M

APPLICATION DATACLASS 6420 EDDYMAG

DYNAMIC MODEL AB-

MOTOR HPRATING

Brake Size

900 RMP Motors

Light DutyServices

SevereDutyServices

7 12 703

10 704

15 704

20 705

25 705

30 705

40 706

50 706

60 706

75 707

100 707

125 707

150 707200 708250 708300 708

ORDERING INFORMATION REQUIRED

5 Motor Secondary Rated Voltage andCurrent6 Controller Modifications Specify FormNumbers

7 Resistors Services Classification8 Master Switch Type and Form Number

AC CRANE CONTROL

23

CLASS

CLASS

CONTROLLER MODIFICATIONSStandard controllers come equipped with the components listedSpecial features to be added to standard controllers are identifiedby Form number Most modifications are self explanatory

list motor isolation circuit breakers for use on duplexcontrollers For operation of the drive on one motor the motorline and connect breakers will disconnect one motor from the lineand connect the frequency relays to the power resistors of the

motor The brakes of the motor not in service are still

lists a 3 frac12rdquo square miniature voltmeter to monitor one

lists a 3 frac12rdquo square miniature ammeter to monitor oneCurrent transformers with this

for motors above 10 HP 230 volt and

PPLICATION DATACLASS 6420 EDDYMAG HOIST

-FLOOR MOUNTED BRAKE

1200 RMP MotorsSevereDutyServices

Light DutyServices

SevereDutyServices

704 703 703

704 703 704

705 704 704

705 704 705

705 705 705

706 705 705

706 705 706

706 706 706

707 706 706

707 706 706

707 707 707

707 707 707

708 707 707708 707 708708 708 708--- 708 708

7 Resistors Services Classification8 Master Switch Type and Form Number

FRONTLINE

24

CLASS

CLASS

CRANE HOOK SPEED VS

CLASS 6421DYNAMIC LO

FIRST

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

O

FSY

NC

HR

ON

OU

SSP

EED

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

SY

NC

HR

ON

OU

SSP

PED

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATACRANE HOOK SPEED VS LOAD PERFORMANCE

CLASS 6420 EDDYMAGreg

CLASS 6421DYNAMIC LOWERING HOIST

FIRST

SECOND

THIRD

FOURTH

FIFTH

FIRST

SECOND

THIRD

FOURTH

FIFTH

40 60 80 100 120 140 160 180

LOAD PERFORMANCE IN OF SYNCHRONOUS SPEED

SECOND

THIRDFOURTH

FIFTH

FIRST

FIRST

SECOND amp THIRD

40 60 80 100 120 140 160 180

LOAD PERFORMANCE IN OF SYNCHRONOUS SPEED

September 2008

200

FIFTH

180 200

September 2008 FRONTLINE

CRANE HOOK SPEEDCLASS 6422 CONTRA

CLASS 6426

SECONDFIRST

FOURTH

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

O

FSY

NC

HR

ON

OU

SSP

EED

FIRST

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

SY

NC

HR

ON

OU

SSP

EED

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATACRANE HOOK SPEED VS LOAD PERFORMANCE

CLASS 6422 CONTRA-TORQUEreg

CLASS 6426 REVERSING HOIST CONTROL(With Mechanical Load Brake)

FIFTH

AUTOMATIC

FOURTH

THIRD

FIRST amp SECOND

SECOND

THIRD

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUS SPEED

SIXTH

SECOND

THIRD

FOURTH

FIFTH

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUSE SPEED

25

CLASS

CLASS

FIFTH

AUTOMATIC

FIRST amp SECOND

180 200

180 200

FRONTLINE

26

CLASS

AC CONTACTOR CONTROL

System AC Contactor Control

Crane Components

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switchradio controlReversing hoistsmechanical load brake gearboxAll other hoist stylesgearbox Best and critical positioning controlrequires E

ResistorsAcceleration resistor setSize based on HP amp duty cycle

Mo

tor

Perf

orm

an

ce

General

Velocity and acceleration is load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

More abrupt speed point

Slowdown

Travel Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

Hoist OFF point slowdown and braking withEddy-Current brakeDB circuitry

OFF Point

Travel No OFF point braking via control

Hoist OFF point braking by Eddybrake CONTRA

Reversing

Travel Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allowsoperation

Hoist Drive is stopped before each changein direction

Power ConsumptionPower dissipated in rotor resistors inspeed points

Component Wear

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Motors Encoders

Requires wound rotor motorNo encoder feedback

Motor blower not typically requiredoperation at reduced motor velocity as fulltorque is not available at zero speed

FRONTLINEreg AC CRANE CONTROL

AC CONTACTOR CONTROL vs DRIVES

AC Contactor Control Variable Frequency Drive

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switch and pendant orradio controlReversing hoists require worm gear ormechanical load brake gearbox

hoist styles require standardgearbox Best and critical positioning control

es Eddy-Current load brake

Inverter-duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limitpendant or radio controlOpen loop hoist controls require worm gear ormechanical load brake gearboxClosed loop hoist controlswith motor encoder feedback

Acceleration resistor set requiredSize based on HP amp duty cycle

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration is load dependantVelocity and acceleration are minimally (open(closed loop) load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

More abrupt speed point transitions Smooth speed point transitions

Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

OFF point slowdown and braking withurrent brake CONTRA-TORQUEreg or

DB circuitry

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

No OFF point braking via control

OFF point braking by Eddy-CurrentCONTRA-TORQUEreg or DB circuitry

OFF point Dynamic Braking (DB)deceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allows reacceleration after relayoperation

Drive is stopped before each changein direction

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speedachieved

Power dissipated in rotor resistors in lowspeed points

Uses less power at reduced velocity and duringacceleration

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Power contactors eliminatedMotor current switched by solidSpare drive recommended

Requires wound rotor motorNo encoder feedback required

Inverter-duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Motor blower not typically required foroperation at reduced motor velocity as fulltorque is not available at zero speed

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and highduty cycles

September 2008

Frequency Drive

duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limit switches master switch

require worm gear ormechanical load brake gearbox

require standard gearbox butwith motor encoder feedback

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration are minimally (open loop) or not(closed loop) load dependant

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

Smooth speed point transitions

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

OFF point Dynamic Braking (DB) with programmabledeceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speed

Uses less power at reduced velocity and during

Power contactors eliminatedMotor current switched by solid-state componentsSpare drive recommended

duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and high

September 2008 FRONTLINE

CLASS 5010 WB DRUM BRAKES

AIST rated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Hold drive stationary when motor is off

Available in 8rdquo to 30rdquo wheel diameters

Torque ratings 100 through 9000 ft-lbs

Corrosion resistant pins are standard on all brake sizes

Grease fittings are standard on 19rdquo 23rdquo and 30rdquo brake sizes

Available with optional self-adjuster

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

AIST rated and suitable for all crane classes

Used on bridge and trolley (horizontal travel) drives

Provide fixed holding torque for parking

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000

Stopping torque ratings up to 300 850 and 1500

Available for AC or DC control systems

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL(Contactor) CONTROLS

Hoist drive styles include Eddy-Current Brakeand Reversing Hoist controls

Reversing Plugging control for bridge and trolley (travel) drives

Meets NEMA Service Classification I

Available in NEMA contactor sizes 2 through 6

Numerous modifications available

Uses Class 8503 Type M Line-ARCreg contactors static timers

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

Meet OSHAamp NEC requirements for AC

Available in continuous ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by

Mechanical amp electrical interlocks prevent switch

CLASS 6170 YOUNGSTOWNreg

HOIST POWER LIMIT SWITCHES

Final safety limits for hoist upper travel

Interrupts motor power directly

Available in ratings up to 500HP at 230VDC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER

FRONTLINEreg AC CRANE CONTROL

ated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Corrosion resistant pins are standard on all brake sizes

andard on 19rdquo 23rdquo and 30rdquo brake sizes

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

ated and suitable for all crane classes

travel) drives

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000 ft-lbs respectively

Stopping torque ratings up to 300 850 and 1500 ft-lbs respectively

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL

Current Brake CONTRA-TORQUEreg AC Dynamic Lowering

bridge and trolley (travel) drives

Available in NEMA contactor sizes 2 through 6 through 300HP for single or multiple motors

contactors static timers and frequency relays for acceleration

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

crane disconnect switch

ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by the enclosure handle

Mechanical amp electrical interlocks prevent switch operation with handle in the OFF position

HOIST POWER LIMIT SWITCHES

to 500HP at 230VDC or up to 400HP at 460VAC and 550VAC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on-line at wwwECandMnet

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER MILL DUTY CONTROL COMPONENTS27

CLASS

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

FRONTLINE

28

CLASS

FRONTLINEreg AC CRANE CONTROL

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

copyCopyright The Electric Controller and Manufacturing Company LLCPrinted in the USA

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

September 2008

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

copyCopyright The Electric Controller and Manufacturing Company LLC 2007

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

Page 15: Ac Crane Control

September 2008 FRONTLINE

WITH CLASS SQUARE DDYNAMIC LOWERING HOI

FRONTLINEreg AC CRANE CONTROL

WITH CLASS SQUARE D 8502 TYPE S CONTACTODYNAMIC LOWERING HOIST ELEMENTARY DIAGRAM

AC CRANE CONTROL

15

CLASS

8502 TYPE S CONTACTORSDIAGRAM

CLASS

FRONTLINE

16

CLASS

APPROXIMATE DIMENSIOCLASS 8502 TYPE S CO

OPEN TYPE

DriveMaximum

HP(Volts)

Open Type

Hin

mm

Win

mm

Hoist orTravel

20(380)

401016

24607

40(460)

401016

24607

40(380)

401016

30762

80(460)

401016

30762

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMENSIONS AND WEIGHTSCLASS 8502 TYPE S CONTACTORS

ENCLOSED TYPE

Open Type Enclosed Type

Cin

mm

NetWeightlbskg

Hin

mm

Win

mm

85216

1506842

106730762

85216

1506842

106730762

10254

2009142

106736914

10254

2009142

106736914

September 2008

ENCLOSED TYPE

Enclosed Type

Din

mm

NetWeightlbskg

15381

300136

15381

300136

15381

385175

15381

385175

September 2008 FRONTLINE

A set of TABWELDreg resistors are required forapplications

RESISTOR APPLICATION

For resistors mounted in racks unwired ndash refer to Class 6715

Class 151 and 152 is recommended for light crane duty

Class 161 and 162 is recommended for standard duty

Class 171 and172 is recommended for severe duty

For explanation of NEMA resistor classifications

CLASS 6715 RESISTORS

To order an AC acceleration resistor set for use with duplex Cpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V andat 67A

Controller Class EnclosureMotorRating

ControlScheme

Code Type Code Code

6420 A0None N

ldquoHrdquo(HP)

6421 A16422 A2

Open O6426 A6

Hoist6435

A7Nema

1G

ldquoKrdquo(kw)

Travel6435

A8Nema

3RW

CustomerDesign

A99NemaScreenCovers

C

NEMA ClassSpeed Points

System VoltageMotor Rated Voltage

Class 6715

Controller TypeEnclosure

Motor Power

Motor ConfigurationRotor Volts

Rotor Amps

FRONTLINEreg AC CRANE CONTROL

SELECTION AND APPLICATIONe required for each AC motor control The following table is for selecting resistor for all AC motor control

RESISTOR APPLICATION

refer to Class 6715

Class 151 and 152 is recommended for light crane duty

Class 161 and 162 is recommended for standard duty

Class 171 and172 is recommended for severe duty

For explanation of NEMA resistor classifications ndash refer to Class 6715

CLASS

CLASS 6715 RESISTORS SELECTION TABLE

EXAMPLE AC RESISTOR SETTo order an AC acceleration resistor set for use with duplex CONTRA-TORQUE hoist (2 motors in parallel) NEMA 161 duty cycle 5 speedpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V and

CLASS 6715 RESISTOR SELECTION TABLE

NEMA DUTYSpeedPoints

NO

SystemVoltage

MotorRated

Voltage

Class Code Code V Code V Code

151 A3 208 2 208 2152 B

161 C

162 D4 380 3 380 3171 E

172 F91 G

5460 4 460 4

92 H

CustomerDesign

CS 575 5 575 56

4 4A2 G 37K C 5Class 6715

AC CRANE CONTROL

17

CLASS

The following table is for selecting resistor for all AC motor control

6715

hoist (2 motors in parallel) NEMA 161 duty cycle 5 speedpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V and rotor amps

MotorConfiguration

Ro

tor

Ro

tor

Code Type Code

Simplex S

Vo

lts

Am

psDuplex D

Quadruplex Q

4 D 350V 67A

CLASS

FRONTLINE

18

CLASS

APPROXIMATE NUMBER OCLASS 6715 TABWELD R

This tabulation is based on ECampM resistor designs for use with Class 6420 6421 6422 6426 controllerstabulation is for typical drive loading and for motors with standard NEMA secondary values of voltage andconsult factory with actual motor data

Max HPRating Single

Motor

6420Hoist

161 171 152

5 2 2 1

7 12 2 2 1

10 2 2 1

15 2 3 2

20 3 3 2

25 2 3 2

30 3 3 2

40 3 4 2

50 4 6 2

60 4 6 3

75 6 12 4

100 7 9 4

125 8 12 6

150 12 15 6

200 12 18 9

250 12 21 9

This tabulation is based on ECampM resistor designs for use with Class 6435drive loading and for motors with standard NEMA secondary values of voltage and

MaximumHP

HoistDynamic Lowering

NEMA Class152 162

5 1 175 1 110 1 215 2 220 2 225 2 330 2 340 3 350 3 460 3 475 4 6

NEMA SERVICE CLASSIF

Standard 6435 controllers meet the requirements of NEMA Services Crequirements of NEMA service classifications I (CMAA Sspeed point modification Form M3

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE NUMBER OF SEPARATELY MOUNTED STANDARSCLASS 6715 TABWELD RESISTOR SECTIONS (265rdquo LONG)

resistor designs for use with Class 6420 6421 6422 6426 controllers and is for estimatetabulation is for typical drive loading and for motors with standard NEMA secondary values of voltage and current For act

6421Hoist

6422Hoist

162 172 161 171 152

1 1 2 2 1

1 2 2 2 1

2 2 3 3 1

2 2 3 4 2

2 2 4 5 2

2 3 4 6 2

2 3 5 7 2

2 3 6 7 3

2 4 7 9 3

3 4 8 9 3

4 6 9 13 4

5 7 12 18 4

6 9 14 21 7

6 9 18 30 9

9 12 24 36 9

12 15 30 42 12

r designs for use with Class 6435 controller and is for estimate only This tabulation is fordrive loading and for motors with standard NEMA secondary values of voltage and current For actual quantities consult factory

HoistReversing

TravelReverse Plugging

NEMA Class NEMA Class152 162 1521 1 11 1 11 1 11 2 11 2 22 3 22 3 33 3 33 4 33 4 44 6 4

NEMA SERVICE CLASSIFICATIONS

meet the requirements of NEMA Services Classification II (CMAA service classifications A2 and B) to meet theervice classifications I (CMAA Service Classifications A1 C D E and F) the controller must be priced with the 5

September 2008

STANDARS

estimate only Thiscurrent For actual quantities

6426Hoist Bridge or Trolley

162 172

1 1

1 1

1 2

2 2

2 2

2 3

3 3

3 4

4 4

4 4

4 5

6 9

9 9

9 12

12 15

15 18

This tabulation is for typicalFor actual quantities consult factory

TravelReverse Plugging

NEMA Class162

11222334456

lassification II (CMAA service classifications A2 and B) to meet theE and F) the controller must be priced with the 5th

September 2008 FRONTLINE

MASTER SWITCHES AND

Class 9004 Type VGMaster Switch

CLASS 9004 VM OR CM

Control Class Speed Points

6420556

642156

642256

6426556

Motion Speed PointsHoist

(Dynamic Lowering)45

Hoist(Reversing)

45

Travel(Reverse Plugging)

45

Refer to Class 9004 catalog for more information

FRONTLINEreg AC CRANE CONTROL

GENERAL INFORMATIONMASTER SWITCHES AND MODIFICATIONS

Class 9004 Type CGMaster Switch

CLASS 9004 VM OR CM NEMA 1 ENCLOSED

oints Form VM TYPE

C1VG9

VG12

B1VG12VG16

D1VG12VG16

A1VG9

VG12

CONTROL 6435Form MA VM

A2AG9 VG9AG9 VG9

A3AG6 VG6AG9 VG9

A3AG6 VG6AG9 VG9

Refer to Class 9004 catalog for more information

AC CRANE CONTROL

19

CLASS

Class 9004 Type CGMaster Switch

CM TYPE

CG12CG12CG12CM16CG12CG16

CG12CG12

VM CMVG9 CG8VG9 CG12VG6 CG6VG9 CG8VG6 CG6VG9 CG8

CLASS

FRONTLINE

20

CLASS

GENERALMANUAL MAGNETIC DISC

The manual magnetic disconnect switch is used for protecting electrical crane circuits exOHSA requirements for a crane disconnect switchThe standard disconnect switch consists of

3mdashClass 8503 Type M form Y781 (with silver faced power contacttips) SPNO contactors The contactors are mechanically tiedOne normally open and one normally closed electricalinterlocks are included for indicating lights

1mdashTwo pole control molded case switch with padlock clip (1mdash460380230 to 255 volt fused control circuit transformer (1mdashIntermediate relay (CR)1mdashClass 9999AI1 Arc Suppressor

Volts5060Hz

NEMAContactor

Size

MaxAmperes

380or

460

4 1505 3006 6008 1350

Form

F30A

3 Main Line Power FusesStart-Stop Push Button

X11Additional Control CircuitNC interlocks can be added

A3 ldquoOnOffrdquo PushbuttonP1 Red ldquoOnrdquo Pilot LightP2 Green ldquoOffrdquo Pilot LightT12 200VA Additional Transformer Capacity

Class L fuse mounting is standard Customer

PILOT DEVICESThe pilot devices should be selected so the current rating is adequate for controlling the disconnect switch For coil9998 Coil Data catalog sheets An arc inhibitor may be required depending upon the ra

DISCONNEWhen applied to cranes the continuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated currentrequired by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

ORDERING INFORMATION REQUIRED1 Class2 Type3 Voltage4 Controller Modifications Specify Form

CLASS

FRONTLINEreg AC CRANE CONTROL

GENERAL INFORMATIONMANUAL MAGNETIC DISCONNECTS SWITCHES

etic disconnect switch is used for protecting electrical crane circuits except lifting magnet circuits The disconnect meets

ype M form Y781 (with silver faced power contacttips) SPNO contactors The contactors are mechanically tiedOne normally open and one normally closed electrical

case switch with padlock clip (CMCS)volt fused control circuit transformer (CTR)

CAM OPERATOR PREVENTSFROM CLOSING WHEN HANDLE IS IN OFFPOSITION

CONTACTORS OPERATED REMOTELY OR BYHANDLE ON THE ENCLOSURE

Amperes

Enclosures

General PurposeNEMA Type 1 gasketed

Dusttight NEMA Type 12Outdoor NEMA Type 3R

MFS12 MFA12MGS12 MGA12MHS12 MHA12MKS12 MKA12

MODIFICATIONSDescription

Main Line Power FusesStop Push Button

Additional Control Circuit Interlocks A maximum of 4 NONC interlocks can be added

Offrdquo PushbuttonRed ldquoOnrdquo Pilot LightGreen ldquoOffrdquo Pilot Light200VA Additional Transformer Capacity

Class L fuse mounting is standard Customer is to supply fuse rating

PILOT DEVICES SELECTIONThe pilot devices should be selected so the current rating is adequate for controlling the disconnect switch For coil currents9998 Coil Data catalog sheets An arc inhibitor may be required depending upon the ratings of the pilot device

DISCONNECT SWITCH SELECTIONcontinuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated current

required by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

September 2008

t lifting magnet circuits The disconnect meets

AM OPERATOR PREVENTS CONTACTORFROM CLOSING WHEN HANDLE IS IN OFF

ORS OPERATED REMOTELY OR BYHANDLE ON THE ENCLOSURE

currents refer to Class

continuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated currentrequired by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

September 2008 FRONTLINE

MANUAL MAGNETIC DISC

FRONTLINEreg AC CRANE CONTROL

MANUAL MAGNETIC DISCONNECT ELEMENTARY DIAGRA

AC CRANE CONTROL

21

CLASS

AGRAM

CLASS

FRONTLINE

22

CLASS

APPROXIMATE DIMESION

NEMASize

ContinuousAmpereRating A B C D

4 15018457

5127

8203

19483

5 30014356

3589

45114

28711

6 60018457

5127

8203

19483

8 135014356

5127

8203

28712

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMESIONS AND WEIGHTS

D E F G H J K L M

19483

30762

36914

2864727

315800

33838

3589

16229

36914

28711

33838

36914

267678

345876

36914

7178

72183

36914

19483

421067

421067

322818

4351105

451143

3589

10483

421067

28712

57838

441118

363922

345864

36914

70178

59137

741275

September 2008

M N

NetWeight

36914

15381

21096

36914

20508

235107

421067

20508

285130

741275

28508

300138

September 2008 FRONTLINE

MULTIMOTOR DRIVESTwo motors connected in parallel (duplex)control primary equipment and two sets of motor controlsecondary equipment are required in the controller Two sets ofpower resistors are also required

Four motors connected in parallel (quadruplex)necessary to double the duplex controller price given for twomotors in parallel One set of motor control primary and four setsof motor control secondary equipment are required Four sets opower resistors are required

CONTROLLERSNarrow width controllers ndash Most controllers ara narrow width construction These controllers when compared tostandard controllers are reduced width and increased height Fordetails see controller modifications and controller dimension

CONTROLLER MODIFICAT

Form Description

D6 Motor Isolating Circuit Breakers

B5 Brake Relay Reverse Plugging Controller Only

Y17 Arc Inhibitors Pendant Operated Controller

G95 Miniature Voltmeter Panel Mounted

G91 Miniature Ammeter Panel Mounted

E18 Narrow Width Panel

M24Substitute Type SZF Frequency Relay For ST1 StaticAcceleration Timers

H18Cabinet Space Heater Controlled By Interlock From MContactor

For Duplex Controllers For Duplex controllers multiply price by 2

1 Class2 Type3 Motor Horsepower4 Motor Primary Rated Voltage and Current

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATA

MULTIMOTOR DRIVESTwo motors connected in parallel (duplex) ndash One set of motorcontrol primary equipment and two sets of motor controlsecondary equipment are required in the controller Two sets of

Four motors connected in parallel (quadruplex) ndash It islex controller price given for two

motors in parallel One set of motor control primary and four setsof motor control secondary equipment are required Four sets of

CONTROLLERSMost controllers are also available in

a narrow width construction These controllers when compared tostandard controllers are reduced width and increased height For

see controller modifications and controller dimension

CONTROLLER MStandard controllers come equipped with the components listedSpecial features to be added to standard controllers are identifiedby Form number Most modifications are self

FORM D6 list motor isolation circuit breakers for use on duplexcontrollers For operation of the drive on one motor the motorline and connect breakers will disconnect one motor from the lineand connect the frequency relays to the power resistors of theother motor The brakes of the motor not in service are stillreleased electrically

FORM G95 lists a 3 frac12rdquo square miniature voltmeter to monitor onephase of motor primary voltage

FORM G9 lists a 3 frac12rdquo square miniature ammeter to monitor onephase of motor primary current Current transformersform are supplied Form G9 for motors above 10 HP20 HP 460 volts

CONTROLLER MODIFICATIONS

Brake Relay Reverse Plugging Controller Only

Arc Inhibitors Pendant Operated Controller

Substitute Type SZF Frequency Relay For ST1 Static

Cabinet Space Heater Controlled By Interlock From M

APPLICATION DATACLASS 6420 EDDYMAG

DYNAMIC MODEL AB-

MOTOR HPRATING

Brake Size

900 RMP Motors

Light DutyServices

SevereDutyServices

7 12 703

10 704

15 704

20 705

25 705

30 705

40 706

50 706

60 706

75 707

100 707

125 707

150 707200 708250 708300 708

ORDERING INFORMATION REQUIRED

5 Motor Secondary Rated Voltage andCurrent6 Controller Modifications Specify FormNumbers

7 Resistors Services Classification8 Master Switch Type and Form Number

AC CRANE CONTROL

23

CLASS

CLASS

CONTROLLER MODIFICATIONSStandard controllers come equipped with the components listedSpecial features to be added to standard controllers are identifiedby Form number Most modifications are self explanatory

list motor isolation circuit breakers for use on duplexcontrollers For operation of the drive on one motor the motorline and connect breakers will disconnect one motor from the lineand connect the frequency relays to the power resistors of the

motor The brakes of the motor not in service are still

lists a 3 frac12rdquo square miniature voltmeter to monitor one

lists a 3 frac12rdquo square miniature ammeter to monitor oneCurrent transformers with this

for motors above 10 HP 230 volt and

PPLICATION DATACLASS 6420 EDDYMAG HOIST

-FLOOR MOUNTED BRAKE

1200 RMP MotorsSevereDutyServices

Light DutyServices

SevereDutyServices

704 703 703

704 703 704

705 704 704

705 704 705

705 705 705

706 705 705

706 705 706

706 706 706

707 706 706

707 706 706

707 707 707

707 707 707

708 707 707708 707 708708 708 708--- 708 708

7 Resistors Services Classification8 Master Switch Type and Form Number

FRONTLINE

24

CLASS

CLASS

CRANE HOOK SPEED VS

CLASS 6421DYNAMIC LO

FIRST

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

O

FSY

NC

HR

ON

OU

SSP

EED

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

SY

NC

HR

ON

OU

SSP

PED

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATACRANE HOOK SPEED VS LOAD PERFORMANCE

CLASS 6420 EDDYMAGreg

CLASS 6421DYNAMIC LOWERING HOIST

FIRST

SECOND

THIRD

FOURTH

FIFTH

FIRST

SECOND

THIRD

FOURTH

FIFTH

40 60 80 100 120 140 160 180

LOAD PERFORMANCE IN OF SYNCHRONOUS SPEED

SECOND

THIRDFOURTH

FIFTH

FIRST

FIRST

SECOND amp THIRD

40 60 80 100 120 140 160 180

LOAD PERFORMANCE IN OF SYNCHRONOUS SPEED

September 2008

200

FIFTH

180 200

September 2008 FRONTLINE

CRANE HOOK SPEEDCLASS 6422 CONTRA

CLASS 6426

SECONDFIRST

FOURTH

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

O

FSY

NC

HR

ON

OU

SSP

EED

FIRST

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

SY

NC

HR

ON

OU

SSP

EED

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATACRANE HOOK SPEED VS LOAD PERFORMANCE

CLASS 6422 CONTRA-TORQUEreg

CLASS 6426 REVERSING HOIST CONTROL(With Mechanical Load Brake)

FIFTH

AUTOMATIC

FOURTH

THIRD

FIRST amp SECOND

SECOND

THIRD

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUS SPEED

SIXTH

SECOND

THIRD

FOURTH

FIFTH

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUSE SPEED

25

CLASS

CLASS

FIFTH

AUTOMATIC

FIRST amp SECOND

180 200

180 200

FRONTLINE

26

CLASS

AC CONTACTOR CONTROL

System AC Contactor Control

Crane Components

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switchradio controlReversing hoistsmechanical load brake gearboxAll other hoist stylesgearbox Best and critical positioning controlrequires E

ResistorsAcceleration resistor setSize based on HP amp duty cycle

Mo

tor

Perf

orm

an

ce

General

Velocity and acceleration is load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

More abrupt speed point

Slowdown

Travel Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

Hoist OFF point slowdown and braking withEddy-Current brakeDB circuitry

OFF Point

Travel No OFF point braking via control

Hoist OFF point braking by Eddybrake CONTRA

Reversing

Travel Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allowsoperation

Hoist Drive is stopped before each changein direction

Power ConsumptionPower dissipated in rotor resistors inspeed points

Component Wear

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Motors Encoders

Requires wound rotor motorNo encoder feedback

Motor blower not typically requiredoperation at reduced motor velocity as fulltorque is not available at zero speed

FRONTLINEreg AC CRANE CONTROL

AC CONTACTOR CONTROL vs DRIVES

AC Contactor Control Variable Frequency Drive

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switch and pendant orradio controlReversing hoists require worm gear ormechanical load brake gearbox

hoist styles require standardgearbox Best and critical positioning control

es Eddy-Current load brake

Inverter-duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limitpendant or radio controlOpen loop hoist controls require worm gear ormechanical load brake gearboxClosed loop hoist controlswith motor encoder feedback

Acceleration resistor set requiredSize based on HP amp duty cycle

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration is load dependantVelocity and acceleration are minimally (open(closed loop) load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

More abrupt speed point transitions Smooth speed point transitions

Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

OFF point slowdown and braking withurrent brake CONTRA-TORQUEreg or

DB circuitry

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

No OFF point braking via control

OFF point braking by Eddy-CurrentCONTRA-TORQUEreg or DB circuitry

OFF point Dynamic Braking (DB)deceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allows reacceleration after relayoperation

Drive is stopped before each changein direction

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speedachieved

Power dissipated in rotor resistors in lowspeed points

Uses less power at reduced velocity and duringacceleration

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Power contactors eliminatedMotor current switched by solidSpare drive recommended

Requires wound rotor motorNo encoder feedback required

Inverter-duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Motor blower not typically required foroperation at reduced motor velocity as fulltorque is not available at zero speed

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and highduty cycles

September 2008

Frequency Drive

duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limit switches master switch

require worm gear ormechanical load brake gearbox

require standard gearbox butwith motor encoder feedback

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration are minimally (open loop) or not(closed loop) load dependant

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

Smooth speed point transitions

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

OFF point Dynamic Braking (DB) with programmabledeceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speed

Uses less power at reduced velocity and during

Power contactors eliminatedMotor current switched by solid-state componentsSpare drive recommended

duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and high

September 2008 FRONTLINE

CLASS 5010 WB DRUM BRAKES

AIST rated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Hold drive stationary when motor is off

Available in 8rdquo to 30rdquo wheel diameters

Torque ratings 100 through 9000 ft-lbs

Corrosion resistant pins are standard on all brake sizes

Grease fittings are standard on 19rdquo 23rdquo and 30rdquo brake sizes

Available with optional self-adjuster

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

AIST rated and suitable for all crane classes

Used on bridge and trolley (horizontal travel) drives

Provide fixed holding torque for parking

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000

Stopping torque ratings up to 300 850 and 1500

Available for AC or DC control systems

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL(Contactor) CONTROLS

Hoist drive styles include Eddy-Current Brakeand Reversing Hoist controls

Reversing Plugging control for bridge and trolley (travel) drives

Meets NEMA Service Classification I

Available in NEMA contactor sizes 2 through 6

Numerous modifications available

Uses Class 8503 Type M Line-ARCreg contactors static timers

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

Meet OSHAamp NEC requirements for AC

Available in continuous ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by

Mechanical amp electrical interlocks prevent switch

CLASS 6170 YOUNGSTOWNreg

HOIST POWER LIMIT SWITCHES

Final safety limits for hoist upper travel

Interrupts motor power directly

Available in ratings up to 500HP at 230VDC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER

FRONTLINEreg AC CRANE CONTROL

ated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Corrosion resistant pins are standard on all brake sizes

andard on 19rdquo 23rdquo and 30rdquo brake sizes

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

ated and suitable for all crane classes

travel) drives

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000 ft-lbs respectively

Stopping torque ratings up to 300 850 and 1500 ft-lbs respectively

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL

Current Brake CONTRA-TORQUEreg AC Dynamic Lowering

bridge and trolley (travel) drives

Available in NEMA contactor sizes 2 through 6 through 300HP for single or multiple motors

contactors static timers and frequency relays for acceleration

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

crane disconnect switch

ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by the enclosure handle

Mechanical amp electrical interlocks prevent switch operation with handle in the OFF position

HOIST POWER LIMIT SWITCHES

to 500HP at 230VDC or up to 400HP at 460VAC and 550VAC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on-line at wwwECandMnet

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER MILL DUTY CONTROL COMPONENTS27

CLASS

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

FRONTLINE

28

CLASS

FRONTLINEreg AC CRANE CONTROL

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

copyCopyright The Electric Controller and Manufacturing Company LLCPrinted in the USA

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

September 2008

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

copyCopyright The Electric Controller and Manufacturing Company LLC 2007

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

Page 16: Ac Crane Control

FRONTLINE

16

CLASS

APPROXIMATE DIMENSIOCLASS 8502 TYPE S CO

OPEN TYPE

DriveMaximum

HP(Volts)

Open Type

Hin

mm

Win

mm

Hoist orTravel

20(380)

401016

24607

40(460)

401016

24607

40(380)

401016

30762

80(460)

401016

30762

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMENSIONS AND WEIGHTSCLASS 8502 TYPE S CONTACTORS

ENCLOSED TYPE

Open Type Enclosed Type

Cin

mm

NetWeightlbskg

Hin

mm

Win

mm

85216

1506842

106730762

85216

1506842

106730762

10254

2009142

106736914

10254

2009142

106736914

September 2008

ENCLOSED TYPE

Enclosed Type

Din

mm

NetWeightlbskg

15381

300136

15381

300136

15381

385175

15381

385175

September 2008 FRONTLINE

A set of TABWELDreg resistors are required forapplications

RESISTOR APPLICATION

For resistors mounted in racks unwired ndash refer to Class 6715

Class 151 and 152 is recommended for light crane duty

Class 161 and 162 is recommended for standard duty

Class 171 and172 is recommended for severe duty

For explanation of NEMA resistor classifications

CLASS 6715 RESISTORS

To order an AC acceleration resistor set for use with duplex Cpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V andat 67A

Controller Class EnclosureMotorRating

ControlScheme

Code Type Code Code

6420 A0None N

ldquoHrdquo(HP)

6421 A16422 A2

Open O6426 A6

Hoist6435

A7Nema

1G

ldquoKrdquo(kw)

Travel6435

A8Nema

3RW

CustomerDesign

A99NemaScreenCovers

C

NEMA ClassSpeed Points

System VoltageMotor Rated Voltage

Class 6715

Controller TypeEnclosure

Motor Power

Motor ConfigurationRotor Volts

Rotor Amps

FRONTLINEreg AC CRANE CONTROL

SELECTION AND APPLICATIONe required for each AC motor control The following table is for selecting resistor for all AC motor control

RESISTOR APPLICATION

refer to Class 6715

Class 151 and 152 is recommended for light crane duty

Class 161 and 162 is recommended for standard duty

Class 171 and172 is recommended for severe duty

For explanation of NEMA resistor classifications ndash refer to Class 6715

CLASS

CLASS 6715 RESISTORS SELECTION TABLE

EXAMPLE AC RESISTOR SETTo order an AC acceleration resistor set for use with duplex CONTRA-TORQUE hoist (2 motors in parallel) NEMA 161 duty cycle 5 speedpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V and

CLASS 6715 RESISTOR SELECTION TABLE

NEMA DUTYSpeedPoints

NO

SystemVoltage

MotorRated

Voltage

Class Code Code V Code V Code

151 A3 208 2 208 2152 B

161 C

162 D4 380 3 380 3171 E

172 F91 G

5460 4 460 4

92 H

CustomerDesign

CS 575 5 575 56

4 4A2 G 37K C 5Class 6715

AC CRANE CONTROL

17

CLASS

The following table is for selecting resistor for all AC motor control

6715

hoist (2 motors in parallel) NEMA 161 duty cycle 5 speedpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V and rotor amps

MotorConfiguration

Ro

tor

Ro

tor

Code Type Code

Simplex S

Vo

lts

Am

psDuplex D

Quadruplex Q

4 D 350V 67A

CLASS

FRONTLINE

18

CLASS

APPROXIMATE NUMBER OCLASS 6715 TABWELD R

This tabulation is based on ECampM resistor designs for use with Class 6420 6421 6422 6426 controllerstabulation is for typical drive loading and for motors with standard NEMA secondary values of voltage andconsult factory with actual motor data

Max HPRating Single

Motor

6420Hoist

161 171 152

5 2 2 1

7 12 2 2 1

10 2 2 1

15 2 3 2

20 3 3 2

25 2 3 2

30 3 3 2

40 3 4 2

50 4 6 2

60 4 6 3

75 6 12 4

100 7 9 4

125 8 12 6

150 12 15 6

200 12 18 9

250 12 21 9

This tabulation is based on ECampM resistor designs for use with Class 6435drive loading and for motors with standard NEMA secondary values of voltage and

MaximumHP

HoistDynamic Lowering

NEMA Class152 162

5 1 175 1 110 1 215 2 220 2 225 2 330 2 340 3 350 3 460 3 475 4 6

NEMA SERVICE CLASSIF

Standard 6435 controllers meet the requirements of NEMA Services Crequirements of NEMA service classifications I (CMAA Sspeed point modification Form M3

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE NUMBER OF SEPARATELY MOUNTED STANDARSCLASS 6715 TABWELD RESISTOR SECTIONS (265rdquo LONG)

resistor designs for use with Class 6420 6421 6422 6426 controllers and is for estimatetabulation is for typical drive loading and for motors with standard NEMA secondary values of voltage and current For act

6421Hoist

6422Hoist

162 172 161 171 152

1 1 2 2 1

1 2 2 2 1

2 2 3 3 1

2 2 3 4 2

2 2 4 5 2

2 3 4 6 2

2 3 5 7 2

2 3 6 7 3

2 4 7 9 3

3 4 8 9 3

4 6 9 13 4

5 7 12 18 4

6 9 14 21 7

6 9 18 30 9

9 12 24 36 9

12 15 30 42 12

r designs for use with Class 6435 controller and is for estimate only This tabulation is fordrive loading and for motors with standard NEMA secondary values of voltage and current For actual quantities consult factory

HoistReversing

TravelReverse Plugging

NEMA Class NEMA Class152 162 1521 1 11 1 11 1 11 2 11 2 22 3 22 3 33 3 33 4 33 4 44 6 4

NEMA SERVICE CLASSIFICATIONS

meet the requirements of NEMA Services Classification II (CMAA service classifications A2 and B) to meet theervice classifications I (CMAA Service Classifications A1 C D E and F) the controller must be priced with the 5

September 2008

STANDARS

estimate only Thiscurrent For actual quantities

6426Hoist Bridge or Trolley

162 172

1 1

1 1

1 2

2 2

2 2

2 3

3 3

3 4

4 4

4 4

4 5

6 9

9 9

9 12

12 15

15 18

This tabulation is for typicalFor actual quantities consult factory

TravelReverse Plugging

NEMA Class162

11222334456

lassification II (CMAA service classifications A2 and B) to meet theE and F) the controller must be priced with the 5th

September 2008 FRONTLINE

MASTER SWITCHES AND

Class 9004 Type VGMaster Switch

CLASS 9004 VM OR CM

Control Class Speed Points

6420556

642156

642256

6426556

Motion Speed PointsHoist

(Dynamic Lowering)45

Hoist(Reversing)

45

Travel(Reverse Plugging)

45

Refer to Class 9004 catalog for more information

FRONTLINEreg AC CRANE CONTROL

GENERAL INFORMATIONMASTER SWITCHES AND MODIFICATIONS

Class 9004 Type CGMaster Switch

CLASS 9004 VM OR CM NEMA 1 ENCLOSED

oints Form VM TYPE

C1VG9

VG12

B1VG12VG16

D1VG12VG16

A1VG9

VG12

CONTROL 6435Form MA VM

A2AG9 VG9AG9 VG9

A3AG6 VG6AG9 VG9

A3AG6 VG6AG9 VG9

Refer to Class 9004 catalog for more information

AC CRANE CONTROL

19

CLASS

Class 9004 Type CGMaster Switch

CM TYPE

CG12CG12CG12CM16CG12CG16

CG12CG12

VM CMVG9 CG8VG9 CG12VG6 CG6VG9 CG8VG6 CG6VG9 CG8

CLASS

FRONTLINE

20

CLASS

GENERALMANUAL MAGNETIC DISC

The manual magnetic disconnect switch is used for protecting electrical crane circuits exOHSA requirements for a crane disconnect switchThe standard disconnect switch consists of

3mdashClass 8503 Type M form Y781 (with silver faced power contacttips) SPNO contactors The contactors are mechanically tiedOne normally open and one normally closed electricalinterlocks are included for indicating lights

1mdashTwo pole control molded case switch with padlock clip (1mdash460380230 to 255 volt fused control circuit transformer (1mdashIntermediate relay (CR)1mdashClass 9999AI1 Arc Suppressor

Volts5060Hz

NEMAContactor

Size

MaxAmperes

380or

460

4 1505 3006 6008 1350

Form

F30A

3 Main Line Power FusesStart-Stop Push Button

X11Additional Control CircuitNC interlocks can be added

A3 ldquoOnOffrdquo PushbuttonP1 Red ldquoOnrdquo Pilot LightP2 Green ldquoOffrdquo Pilot LightT12 200VA Additional Transformer Capacity

Class L fuse mounting is standard Customer

PILOT DEVICESThe pilot devices should be selected so the current rating is adequate for controlling the disconnect switch For coil9998 Coil Data catalog sheets An arc inhibitor may be required depending upon the ra

DISCONNEWhen applied to cranes the continuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated currentrequired by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

ORDERING INFORMATION REQUIRED1 Class2 Type3 Voltage4 Controller Modifications Specify Form

CLASS

FRONTLINEreg AC CRANE CONTROL

GENERAL INFORMATIONMANUAL MAGNETIC DISCONNECTS SWITCHES

etic disconnect switch is used for protecting electrical crane circuits except lifting magnet circuits The disconnect meets

ype M form Y781 (with silver faced power contacttips) SPNO contactors The contactors are mechanically tiedOne normally open and one normally closed electrical

case switch with padlock clip (CMCS)volt fused control circuit transformer (CTR)

CAM OPERATOR PREVENTSFROM CLOSING WHEN HANDLE IS IN OFFPOSITION

CONTACTORS OPERATED REMOTELY OR BYHANDLE ON THE ENCLOSURE

Amperes

Enclosures

General PurposeNEMA Type 1 gasketed

Dusttight NEMA Type 12Outdoor NEMA Type 3R

MFS12 MFA12MGS12 MGA12MHS12 MHA12MKS12 MKA12

MODIFICATIONSDescription

Main Line Power FusesStop Push Button

Additional Control Circuit Interlocks A maximum of 4 NONC interlocks can be added

Offrdquo PushbuttonRed ldquoOnrdquo Pilot LightGreen ldquoOffrdquo Pilot Light200VA Additional Transformer Capacity

Class L fuse mounting is standard Customer is to supply fuse rating

PILOT DEVICES SELECTIONThe pilot devices should be selected so the current rating is adequate for controlling the disconnect switch For coil currents9998 Coil Data catalog sheets An arc inhibitor may be required depending upon the ratings of the pilot device

DISCONNECT SWITCH SELECTIONcontinuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated current

required by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

September 2008

t lifting magnet circuits The disconnect meets

AM OPERATOR PREVENTS CONTACTORFROM CLOSING WHEN HANDLE IS IN OFF

ORS OPERATED REMOTELY OR BYHANDLE ON THE ENCLOSURE

currents refer to Class

continuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated currentrequired by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

September 2008 FRONTLINE

MANUAL MAGNETIC DISC

FRONTLINEreg AC CRANE CONTROL

MANUAL MAGNETIC DISCONNECT ELEMENTARY DIAGRA

AC CRANE CONTROL

21

CLASS

AGRAM

CLASS

FRONTLINE

22

CLASS

APPROXIMATE DIMESION

NEMASize

ContinuousAmpereRating A B C D

4 15018457

5127

8203

19483

5 30014356

3589

45114

28711

6 60018457

5127

8203

19483

8 135014356

5127

8203

28712

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMESIONS AND WEIGHTS

D E F G H J K L M

19483

30762

36914

2864727

315800

33838

3589

16229

36914

28711

33838

36914

267678

345876

36914

7178

72183

36914

19483

421067

421067

322818

4351105

451143

3589

10483

421067

28712

57838

441118

363922

345864

36914

70178

59137

741275

September 2008

M N

NetWeight

36914

15381

21096

36914

20508

235107

421067

20508

285130

741275

28508

300138

September 2008 FRONTLINE

MULTIMOTOR DRIVESTwo motors connected in parallel (duplex)control primary equipment and two sets of motor controlsecondary equipment are required in the controller Two sets ofpower resistors are also required

Four motors connected in parallel (quadruplex)necessary to double the duplex controller price given for twomotors in parallel One set of motor control primary and four setsof motor control secondary equipment are required Four sets opower resistors are required

CONTROLLERSNarrow width controllers ndash Most controllers ara narrow width construction These controllers when compared tostandard controllers are reduced width and increased height Fordetails see controller modifications and controller dimension

CONTROLLER MODIFICAT

Form Description

D6 Motor Isolating Circuit Breakers

B5 Brake Relay Reverse Plugging Controller Only

Y17 Arc Inhibitors Pendant Operated Controller

G95 Miniature Voltmeter Panel Mounted

G91 Miniature Ammeter Panel Mounted

E18 Narrow Width Panel

M24Substitute Type SZF Frequency Relay For ST1 StaticAcceleration Timers

H18Cabinet Space Heater Controlled By Interlock From MContactor

For Duplex Controllers For Duplex controllers multiply price by 2

1 Class2 Type3 Motor Horsepower4 Motor Primary Rated Voltage and Current

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATA

MULTIMOTOR DRIVESTwo motors connected in parallel (duplex) ndash One set of motorcontrol primary equipment and two sets of motor controlsecondary equipment are required in the controller Two sets of

Four motors connected in parallel (quadruplex) ndash It islex controller price given for two

motors in parallel One set of motor control primary and four setsof motor control secondary equipment are required Four sets of

CONTROLLERSMost controllers are also available in

a narrow width construction These controllers when compared tostandard controllers are reduced width and increased height For

see controller modifications and controller dimension

CONTROLLER MStandard controllers come equipped with the components listedSpecial features to be added to standard controllers are identifiedby Form number Most modifications are self

FORM D6 list motor isolation circuit breakers for use on duplexcontrollers For operation of the drive on one motor the motorline and connect breakers will disconnect one motor from the lineand connect the frequency relays to the power resistors of theother motor The brakes of the motor not in service are stillreleased electrically

FORM G95 lists a 3 frac12rdquo square miniature voltmeter to monitor onephase of motor primary voltage

FORM G9 lists a 3 frac12rdquo square miniature ammeter to monitor onephase of motor primary current Current transformersform are supplied Form G9 for motors above 10 HP20 HP 460 volts

CONTROLLER MODIFICATIONS

Brake Relay Reverse Plugging Controller Only

Arc Inhibitors Pendant Operated Controller

Substitute Type SZF Frequency Relay For ST1 Static

Cabinet Space Heater Controlled By Interlock From M

APPLICATION DATACLASS 6420 EDDYMAG

DYNAMIC MODEL AB-

MOTOR HPRATING

Brake Size

900 RMP Motors

Light DutyServices

SevereDutyServices

7 12 703

10 704

15 704

20 705

25 705

30 705

40 706

50 706

60 706

75 707

100 707

125 707

150 707200 708250 708300 708

ORDERING INFORMATION REQUIRED

5 Motor Secondary Rated Voltage andCurrent6 Controller Modifications Specify FormNumbers

7 Resistors Services Classification8 Master Switch Type and Form Number

AC CRANE CONTROL

23

CLASS

CLASS

CONTROLLER MODIFICATIONSStandard controllers come equipped with the components listedSpecial features to be added to standard controllers are identifiedby Form number Most modifications are self explanatory

list motor isolation circuit breakers for use on duplexcontrollers For operation of the drive on one motor the motorline and connect breakers will disconnect one motor from the lineand connect the frequency relays to the power resistors of the

motor The brakes of the motor not in service are still

lists a 3 frac12rdquo square miniature voltmeter to monitor one

lists a 3 frac12rdquo square miniature ammeter to monitor oneCurrent transformers with this

for motors above 10 HP 230 volt and

PPLICATION DATACLASS 6420 EDDYMAG HOIST

-FLOOR MOUNTED BRAKE

1200 RMP MotorsSevereDutyServices

Light DutyServices

SevereDutyServices

704 703 703

704 703 704

705 704 704

705 704 705

705 705 705

706 705 705

706 705 706

706 706 706

707 706 706

707 706 706

707 707 707

707 707 707

708 707 707708 707 708708 708 708--- 708 708

7 Resistors Services Classification8 Master Switch Type and Form Number

FRONTLINE

24

CLASS

CLASS

CRANE HOOK SPEED VS

CLASS 6421DYNAMIC LO

FIRST

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

O

FSY

NC

HR

ON

OU

SSP

EED

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

SY

NC

HR

ON

OU

SSP

PED

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATACRANE HOOK SPEED VS LOAD PERFORMANCE

CLASS 6420 EDDYMAGreg

CLASS 6421DYNAMIC LOWERING HOIST

FIRST

SECOND

THIRD

FOURTH

FIFTH

FIRST

SECOND

THIRD

FOURTH

FIFTH

40 60 80 100 120 140 160 180

LOAD PERFORMANCE IN OF SYNCHRONOUS SPEED

SECOND

THIRDFOURTH

FIFTH

FIRST

FIRST

SECOND amp THIRD

40 60 80 100 120 140 160 180

LOAD PERFORMANCE IN OF SYNCHRONOUS SPEED

September 2008

200

FIFTH

180 200

September 2008 FRONTLINE

CRANE HOOK SPEEDCLASS 6422 CONTRA

CLASS 6426

SECONDFIRST

FOURTH

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

O

FSY

NC

HR

ON

OU

SSP

EED

FIRST

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

SY

NC

HR

ON

OU

SSP

EED

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATACRANE HOOK SPEED VS LOAD PERFORMANCE

CLASS 6422 CONTRA-TORQUEreg

CLASS 6426 REVERSING HOIST CONTROL(With Mechanical Load Brake)

FIFTH

AUTOMATIC

FOURTH

THIRD

FIRST amp SECOND

SECOND

THIRD

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUS SPEED

SIXTH

SECOND

THIRD

FOURTH

FIFTH

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUSE SPEED

25

CLASS

CLASS

FIFTH

AUTOMATIC

FIRST amp SECOND

180 200

180 200

FRONTLINE

26

CLASS

AC CONTACTOR CONTROL

System AC Contactor Control

Crane Components

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switchradio controlReversing hoistsmechanical load brake gearboxAll other hoist stylesgearbox Best and critical positioning controlrequires E

ResistorsAcceleration resistor setSize based on HP amp duty cycle

Mo

tor

Perf

orm

an

ce

General

Velocity and acceleration is load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

More abrupt speed point

Slowdown

Travel Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

Hoist OFF point slowdown and braking withEddy-Current brakeDB circuitry

OFF Point

Travel No OFF point braking via control

Hoist OFF point braking by Eddybrake CONTRA

Reversing

Travel Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allowsoperation

Hoist Drive is stopped before each changein direction

Power ConsumptionPower dissipated in rotor resistors inspeed points

Component Wear

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Motors Encoders

Requires wound rotor motorNo encoder feedback

Motor blower not typically requiredoperation at reduced motor velocity as fulltorque is not available at zero speed

FRONTLINEreg AC CRANE CONTROL

AC CONTACTOR CONTROL vs DRIVES

AC Contactor Control Variable Frequency Drive

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switch and pendant orradio controlReversing hoists require worm gear ormechanical load brake gearbox

hoist styles require standardgearbox Best and critical positioning control

es Eddy-Current load brake

Inverter-duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limitpendant or radio controlOpen loop hoist controls require worm gear ormechanical load brake gearboxClosed loop hoist controlswith motor encoder feedback

Acceleration resistor set requiredSize based on HP amp duty cycle

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration is load dependantVelocity and acceleration are minimally (open(closed loop) load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

More abrupt speed point transitions Smooth speed point transitions

Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

OFF point slowdown and braking withurrent brake CONTRA-TORQUEreg or

DB circuitry

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

No OFF point braking via control

OFF point braking by Eddy-CurrentCONTRA-TORQUEreg or DB circuitry

OFF point Dynamic Braking (DB)deceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allows reacceleration after relayoperation

Drive is stopped before each changein direction

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speedachieved

Power dissipated in rotor resistors in lowspeed points

Uses less power at reduced velocity and duringacceleration

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Power contactors eliminatedMotor current switched by solidSpare drive recommended

Requires wound rotor motorNo encoder feedback required

Inverter-duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Motor blower not typically required foroperation at reduced motor velocity as fulltorque is not available at zero speed

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and highduty cycles

September 2008

Frequency Drive

duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limit switches master switch

require worm gear ormechanical load brake gearbox

require standard gearbox butwith motor encoder feedback

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration are minimally (open loop) or not(closed loop) load dependant

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

Smooth speed point transitions

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

OFF point Dynamic Braking (DB) with programmabledeceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speed

Uses less power at reduced velocity and during

Power contactors eliminatedMotor current switched by solid-state componentsSpare drive recommended

duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and high

September 2008 FRONTLINE

CLASS 5010 WB DRUM BRAKES

AIST rated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Hold drive stationary when motor is off

Available in 8rdquo to 30rdquo wheel diameters

Torque ratings 100 through 9000 ft-lbs

Corrosion resistant pins are standard on all brake sizes

Grease fittings are standard on 19rdquo 23rdquo and 30rdquo brake sizes

Available with optional self-adjuster

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

AIST rated and suitable for all crane classes

Used on bridge and trolley (horizontal travel) drives

Provide fixed holding torque for parking

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000

Stopping torque ratings up to 300 850 and 1500

Available for AC or DC control systems

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL(Contactor) CONTROLS

Hoist drive styles include Eddy-Current Brakeand Reversing Hoist controls

Reversing Plugging control for bridge and trolley (travel) drives

Meets NEMA Service Classification I

Available in NEMA contactor sizes 2 through 6

Numerous modifications available

Uses Class 8503 Type M Line-ARCreg contactors static timers

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

Meet OSHAamp NEC requirements for AC

Available in continuous ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by

Mechanical amp electrical interlocks prevent switch

CLASS 6170 YOUNGSTOWNreg

HOIST POWER LIMIT SWITCHES

Final safety limits for hoist upper travel

Interrupts motor power directly

Available in ratings up to 500HP at 230VDC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER

FRONTLINEreg AC CRANE CONTROL

ated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Corrosion resistant pins are standard on all brake sizes

andard on 19rdquo 23rdquo and 30rdquo brake sizes

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

ated and suitable for all crane classes

travel) drives

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000 ft-lbs respectively

Stopping torque ratings up to 300 850 and 1500 ft-lbs respectively

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL

Current Brake CONTRA-TORQUEreg AC Dynamic Lowering

bridge and trolley (travel) drives

Available in NEMA contactor sizes 2 through 6 through 300HP for single or multiple motors

contactors static timers and frequency relays for acceleration

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

crane disconnect switch

ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by the enclosure handle

Mechanical amp electrical interlocks prevent switch operation with handle in the OFF position

HOIST POWER LIMIT SWITCHES

to 500HP at 230VDC or up to 400HP at 460VAC and 550VAC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on-line at wwwECandMnet

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER MILL DUTY CONTROL COMPONENTS27

CLASS

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

FRONTLINE

28

CLASS

FRONTLINEreg AC CRANE CONTROL

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

copyCopyright The Electric Controller and Manufacturing Company LLCPrinted in the USA

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

September 2008

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

copyCopyright The Electric Controller and Manufacturing Company LLC 2007

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

Page 17: Ac Crane Control

September 2008 FRONTLINE

A set of TABWELDreg resistors are required forapplications

RESISTOR APPLICATION

For resistors mounted in racks unwired ndash refer to Class 6715

Class 151 and 152 is recommended for light crane duty

Class 161 and 162 is recommended for standard duty

Class 171 and172 is recommended for severe duty

For explanation of NEMA resistor classifications

CLASS 6715 RESISTORS

To order an AC acceleration resistor set for use with duplex Cpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V andat 67A

Controller Class EnclosureMotorRating

ControlScheme

Code Type Code Code

6420 A0None N

ldquoHrdquo(HP)

6421 A16422 A2

Open O6426 A6

Hoist6435

A7Nema

1G

ldquoKrdquo(kw)

Travel6435

A8Nema

3RW

CustomerDesign

A99NemaScreenCovers

C

NEMA ClassSpeed Points

System VoltageMotor Rated Voltage

Class 6715

Controller TypeEnclosure

Motor Power

Motor ConfigurationRotor Volts

Rotor Amps

FRONTLINEreg AC CRANE CONTROL

SELECTION AND APPLICATIONe required for each AC motor control The following table is for selecting resistor for all AC motor control

RESISTOR APPLICATION

refer to Class 6715

Class 151 and 152 is recommended for light crane duty

Class 161 and 162 is recommended for standard duty

Class 171 and172 is recommended for severe duty

For explanation of NEMA resistor classifications ndash refer to Class 6715

CLASS

CLASS 6715 RESISTORS SELECTION TABLE

EXAMPLE AC RESISTOR SETTo order an AC acceleration resistor set for use with duplex CONTRA-TORQUE hoist (2 motors in parallel) NEMA 161 duty cycle 5 speedpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V and

CLASS 6715 RESISTOR SELECTION TABLE

NEMA DUTYSpeedPoints

NO

SystemVoltage

MotorRated

Voltage

Class Code Code V Code V Code

151 A3 208 2 208 2152 B

161 C

162 D4 380 3 380 3171 E

172 F91 G

5460 4 460 4

92 H

CustomerDesign

CS 575 5 575 56

4 4A2 G 37K C 5Class 6715

AC CRANE CONTROL

17

CLASS

The following table is for selecting resistor for all AC motor control

6715

hoist (2 motors in parallel) NEMA 161 duty cycle 5 speedpoints system amp motor voltage applied at 460VAC 37kW enclosed in BRG NEMA 1 style rack(s) with rotor voltage at 350V and rotor amps

MotorConfiguration

Ro

tor

Ro

tor

Code Type Code

Simplex S

Vo

lts

Am

psDuplex D

Quadruplex Q

4 D 350V 67A

CLASS

FRONTLINE

18

CLASS

APPROXIMATE NUMBER OCLASS 6715 TABWELD R

This tabulation is based on ECampM resistor designs for use with Class 6420 6421 6422 6426 controllerstabulation is for typical drive loading and for motors with standard NEMA secondary values of voltage andconsult factory with actual motor data

Max HPRating Single

Motor

6420Hoist

161 171 152

5 2 2 1

7 12 2 2 1

10 2 2 1

15 2 3 2

20 3 3 2

25 2 3 2

30 3 3 2

40 3 4 2

50 4 6 2

60 4 6 3

75 6 12 4

100 7 9 4

125 8 12 6

150 12 15 6

200 12 18 9

250 12 21 9

This tabulation is based on ECampM resistor designs for use with Class 6435drive loading and for motors with standard NEMA secondary values of voltage and

MaximumHP

HoistDynamic Lowering

NEMA Class152 162

5 1 175 1 110 1 215 2 220 2 225 2 330 2 340 3 350 3 460 3 475 4 6

NEMA SERVICE CLASSIF

Standard 6435 controllers meet the requirements of NEMA Services Crequirements of NEMA service classifications I (CMAA Sspeed point modification Form M3

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE NUMBER OF SEPARATELY MOUNTED STANDARSCLASS 6715 TABWELD RESISTOR SECTIONS (265rdquo LONG)

resistor designs for use with Class 6420 6421 6422 6426 controllers and is for estimatetabulation is for typical drive loading and for motors with standard NEMA secondary values of voltage and current For act

6421Hoist

6422Hoist

162 172 161 171 152

1 1 2 2 1

1 2 2 2 1

2 2 3 3 1

2 2 3 4 2

2 2 4 5 2

2 3 4 6 2

2 3 5 7 2

2 3 6 7 3

2 4 7 9 3

3 4 8 9 3

4 6 9 13 4

5 7 12 18 4

6 9 14 21 7

6 9 18 30 9

9 12 24 36 9

12 15 30 42 12

r designs for use with Class 6435 controller and is for estimate only This tabulation is fordrive loading and for motors with standard NEMA secondary values of voltage and current For actual quantities consult factory

HoistReversing

TravelReverse Plugging

NEMA Class NEMA Class152 162 1521 1 11 1 11 1 11 2 11 2 22 3 22 3 33 3 33 4 33 4 44 6 4

NEMA SERVICE CLASSIFICATIONS

meet the requirements of NEMA Services Classification II (CMAA service classifications A2 and B) to meet theervice classifications I (CMAA Service Classifications A1 C D E and F) the controller must be priced with the 5

September 2008

STANDARS

estimate only Thiscurrent For actual quantities

6426Hoist Bridge or Trolley

162 172

1 1

1 1

1 2

2 2

2 2

2 3

3 3

3 4

4 4

4 4

4 5

6 9

9 9

9 12

12 15

15 18

This tabulation is for typicalFor actual quantities consult factory

TravelReverse Plugging

NEMA Class162

11222334456

lassification II (CMAA service classifications A2 and B) to meet theE and F) the controller must be priced with the 5th

September 2008 FRONTLINE

MASTER SWITCHES AND

Class 9004 Type VGMaster Switch

CLASS 9004 VM OR CM

Control Class Speed Points

6420556

642156

642256

6426556

Motion Speed PointsHoist

(Dynamic Lowering)45

Hoist(Reversing)

45

Travel(Reverse Plugging)

45

Refer to Class 9004 catalog for more information

FRONTLINEreg AC CRANE CONTROL

GENERAL INFORMATIONMASTER SWITCHES AND MODIFICATIONS

Class 9004 Type CGMaster Switch

CLASS 9004 VM OR CM NEMA 1 ENCLOSED

oints Form VM TYPE

C1VG9

VG12

B1VG12VG16

D1VG12VG16

A1VG9

VG12

CONTROL 6435Form MA VM

A2AG9 VG9AG9 VG9

A3AG6 VG6AG9 VG9

A3AG6 VG6AG9 VG9

Refer to Class 9004 catalog for more information

AC CRANE CONTROL

19

CLASS

Class 9004 Type CGMaster Switch

CM TYPE

CG12CG12CG12CM16CG12CG16

CG12CG12

VM CMVG9 CG8VG9 CG12VG6 CG6VG9 CG8VG6 CG6VG9 CG8

CLASS

FRONTLINE

20

CLASS

GENERALMANUAL MAGNETIC DISC

The manual magnetic disconnect switch is used for protecting electrical crane circuits exOHSA requirements for a crane disconnect switchThe standard disconnect switch consists of

3mdashClass 8503 Type M form Y781 (with silver faced power contacttips) SPNO contactors The contactors are mechanically tiedOne normally open and one normally closed electricalinterlocks are included for indicating lights

1mdashTwo pole control molded case switch with padlock clip (1mdash460380230 to 255 volt fused control circuit transformer (1mdashIntermediate relay (CR)1mdashClass 9999AI1 Arc Suppressor

Volts5060Hz

NEMAContactor

Size

MaxAmperes

380or

460

4 1505 3006 6008 1350

Form

F30A

3 Main Line Power FusesStart-Stop Push Button

X11Additional Control CircuitNC interlocks can be added

A3 ldquoOnOffrdquo PushbuttonP1 Red ldquoOnrdquo Pilot LightP2 Green ldquoOffrdquo Pilot LightT12 200VA Additional Transformer Capacity

Class L fuse mounting is standard Customer

PILOT DEVICESThe pilot devices should be selected so the current rating is adequate for controlling the disconnect switch For coil9998 Coil Data catalog sheets An arc inhibitor may be required depending upon the ra

DISCONNEWhen applied to cranes the continuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated currentrequired by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

ORDERING INFORMATION REQUIRED1 Class2 Type3 Voltage4 Controller Modifications Specify Form

CLASS

FRONTLINEreg AC CRANE CONTROL

GENERAL INFORMATIONMANUAL MAGNETIC DISCONNECTS SWITCHES

etic disconnect switch is used for protecting electrical crane circuits except lifting magnet circuits The disconnect meets

ype M form Y781 (with silver faced power contacttips) SPNO contactors The contactors are mechanically tiedOne normally open and one normally closed electrical

case switch with padlock clip (CMCS)volt fused control circuit transformer (CTR)

CAM OPERATOR PREVENTSFROM CLOSING WHEN HANDLE IS IN OFFPOSITION

CONTACTORS OPERATED REMOTELY OR BYHANDLE ON THE ENCLOSURE

Amperes

Enclosures

General PurposeNEMA Type 1 gasketed

Dusttight NEMA Type 12Outdoor NEMA Type 3R

MFS12 MFA12MGS12 MGA12MHS12 MHA12MKS12 MKA12

MODIFICATIONSDescription

Main Line Power FusesStop Push Button

Additional Control Circuit Interlocks A maximum of 4 NONC interlocks can be added

Offrdquo PushbuttonRed ldquoOnrdquo Pilot LightGreen ldquoOffrdquo Pilot Light200VA Additional Transformer Capacity

Class L fuse mounting is standard Customer is to supply fuse rating

PILOT DEVICES SELECTIONThe pilot devices should be selected so the current rating is adequate for controlling the disconnect switch For coil currents9998 Coil Data catalog sheets An arc inhibitor may be required depending upon the ratings of the pilot device

DISCONNECT SWITCH SELECTIONcontinuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated current

required by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

September 2008

t lifting magnet circuits The disconnect meets

AM OPERATOR PREVENTS CONTACTORFROM CLOSING WHEN HANDLE IS IN OFF

ORS OPERATED REMOTELY OR BYHANDLE ON THE ENCLOSURE

currents refer to Class

continuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated currentrequired by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

September 2008 FRONTLINE

MANUAL MAGNETIC DISC

FRONTLINEreg AC CRANE CONTROL

MANUAL MAGNETIC DISCONNECT ELEMENTARY DIAGRA

AC CRANE CONTROL

21

CLASS

AGRAM

CLASS

FRONTLINE

22

CLASS

APPROXIMATE DIMESION

NEMASize

ContinuousAmpereRating A B C D

4 15018457

5127

8203

19483

5 30014356

3589

45114

28711

6 60018457

5127

8203

19483

8 135014356

5127

8203

28712

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMESIONS AND WEIGHTS

D E F G H J K L M

19483

30762

36914

2864727

315800

33838

3589

16229

36914

28711

33838

36914

267678

345876

36914

7178

72183

36914

19483

421067

421067

322818

4351105

451143

3589

10483

421067

28712

57838

441118

363922

345864

36914

70178

59137

741275

September 2008

M N

NetWeight

36914

15381

21096

36914

20508

235107

421067

20508

285130

741275

28508

300138

September 2008 FRONTLINE

MULTIMOTOR DRIVESTwo motors connected in parallel (duplex)control primary equipment and two sets of motor controlsecondary equipment are required in the controller Two sets ofpower resistors are also required

Four motors connected in parallel (quadruplex)necessary to double the duplex controller price given for twomotors in parallel One set of motor control primary and four setsof motor control secondary equipment are required Four sets opower resistors are required

CONTROLLERSNarrow width controllers ndash Most controllers ara narrow width construction These controllers when compared tostandard controllers are reduced width and increased height Fordetails see controller modifications and controller dimension

CONTROLLER MODIFICAT

Form Description

D6 Motor Isolating Circuit Breakers

B5 Brake Relay Reverse Plugging Controller Only

Y17 Arc Inhibitors Pendant Operated Controller

G95 Miniature Voltmeter Panel Mounted

G91 Miniature Ammeter Panel Mounted

E18 Narrow Width Panel

M24Substitute Type SZF Frequency Relay For ST1 StaticAcceleration Timers

H18Cabinet Space Heater Controlled By Interlock From MContactor

For Duplex Controllers For Duplex controllers multiply price by 2

1 Class2 Type3 Motor Horsepower4 Motor Primary Rated Voltage and Current

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATA

MULTIMOTOR DRIVESTwo motors connected in parallel (duplex) ndash One set of motorcontrol primary equipment and two sets of motor controlsecondary equipment are required in the controller Two sets of

Four motors connected in parallel (quadruplex) ndash It islex controller price given for two

motors in parallel One set of motor control primary and four setsof motor control secondary equipment are required Four sets of

CONTROLLERSMost controllers are also available in

a narrow width construction These controllers when compared tostandard controllers are reduced width and increased height For

see controller modifications and controller dimension

CONTROLLER MStandard controllers come equipped with the components listedSpecial features to be added to standard controllers are identifiedby Form number Most modifications are self

FORM D6 list motor isolation circuit breakers for use on duplexcontrollers For operation of the drive on one motor the motorline and connect breakers will disconnect one motor from the lineand connect the frequency relays to the power resistors of theother motor The brakes of the motor not in service are stillreleased electrically

FORM G95 lists a 3 frac12rdquo square miniature voltmeter to monitor onephase of motor primary voltage

FORM G9 lists a 3 frac12rdquo square miniature ammeter to monitor onephase of motor primary current Current transformersform are supplied Form G9 for motors above 10 HP20 HP 460 volts

CONTROLLER MODIFICATIONS

Brake Relay Reverse Plugging Controller Only

Arc Inhibitors Pendant Operated Controller

Substitute Type SZF Frequency Relay For ST1 Static

Cabinet Space Heater Controlled By Interlock From M

APPLICATION DATACLASS 6420 EDDYMAG

DYNAMIC MODEL AB-

MOTOR HPRATING

Brake Size

900 RMP Motors

Light DutyServices

SevereDutyServices

7 12 703

10 704

15 704

20 705

25 705

30 705

40 706

50 706

60 706

75 707

100 707

125 707

150 707200 708250 708300 708

ORDERING INFORMATION REQUIRED

5 Motor Secondary Rated Voltage andCurrent6 Controller Modifications Specify FormNumbers

7 Resistors Services Classification8 Master Switch Type and Form Number

AC CRANE CONTROL

23

CLASS

CLASS

CONTROLLER MODIFICATIONSStandard controllers come equipped with the components listedSpecial features to be added to standard controllers are identifiedby Form number Most modifications are self explanatory

list motor isolation circuit breakers for use on duplexcontrollers For operation of the drive on one motor the motorline and connect breakers will disconnect one motor from the lineand connect the frequency relays to the power resistors of the

motor The brakes of the motor not in service are still

lists a 3 frac12rdquo square miniature voltmeter to monitor one

lists a 3 frac12rdquo square miniature ammeter to monitor oneCurrent transformers with this

for motors above 10 HP 230 volt and

PPLICATION DATACLASS 6420 EDDYMAG HOIST

-FLOOR MOUNTED BRAKE

1200 RMP MotorsSevereDutyServices

Light DutyServices

SevereDutyServices

704 703 703

704 703 704

705 704 704

705 704 705

705 705 705

706 705 705

706 705 706

706 706 706

707 706 706

707 706 706

707 707 707

707 707 707

708 707 707708 707 708708 708 708--- 708 708

7 Resistors Services Classification8 Master Switch Type and Form Number

FRONTLINE

24

CLASS

CLASS

CRANE HOOK SPEED VS

CLASS 6421DYNAMIC LO

FIRST

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

O

FSY

NC

HR

ON

OU

SSP

EED

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

SY

NC

HR

ON

OU

SSP

PED

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATACRANE HOOK SPEED VS LOAD PERFORMANCE

CLASS 6420 EDDYMAGreg

CLASS 6421DYNAMIC LOWERING HOIST

FIRST

SECOND

THIRD

FOURTH

FIFTH

FIRST

SECOND

THIRD

FOURTH

FIFTH

40 60 80 100 120 140 160 180

LOAD PERFORMANCE IN OF SYNCHRONOUS SPEED

SECOND

THIRDFOURTH

FIFTH

FIRST

FIRST

SECOND amp THIRD

40 60 80 100 120 140 160 180

LOAD PERFORMANCE IN OF SYNCHRONOUS SPEED

September 2008

200

FIFTH

180 200

September 2008 FRONTLINE

CRANE HOOK SPEEDCLASS 6422 CONTRA

CLASS 6426

SECONDFIRST

FOURTH

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

O

FSY

NC

HR

ON

OU

SSP

EED

FIRST

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

SY

NC

HR

ON

OU

SSP

EED

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATACRANE HOOK SPEED VS LOAD PERFORMANCE

CLASS 6422 CONTRA-TORQUEreg

CLASS 6426 REVERSING HOIST CONTROL(With Mechanical Load Brake)

FIFTH

AUTOMATIC

FOURTH

THIRD

FIRST amp SECOND

SECOND

THIRD

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUS SPEED

SIXTH

SECOND

THIRD

FOURTH

FIFTH

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUSE SPEED

25

CLASS

CLASS

FIFTH

AUTOMATIC

FIRST amp SECOND

180 200

180 200

FRONTLINE

26

CLASS

AC CONTACTOR CONTROL

System AC Contactor Control

Crane Components

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switchradio controlReversing hoistsmechanical load brake gearboxAll other hoist stylesgearbox Best and critical positioning controlrequires E

ResistorsAcceleration resistor setSize based on HP amp duty cycle

Mo

tor

Perf

orm

an

ce

General

Velocity and acceleration is load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

More abrupt speed point

Slowdown

Travel Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

Hoist OFF point slowdown and braking withEddy-Current brakeDB circuitry

OFF Point

Travel No OFF point braking via control

Hoist OFF point braking by Eddybrake CONTRA

Reversing

Travel Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allowsoperation

Hoist Drive is stopped before each changein direction

Power ConsumptionPower dissipated in rotor resistors inspeed points

Component Wear

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Motors Encoders

Requires wound rotor motorNo encoder feedback

Motor blower not typically requiredoperation at reduced motor velocity as fulltorque is not available at zero speed

FRONTLINEreg AC CRANE CONTROL

AC CONTACTOR CONTROL vs DRIVES

AC Contactor Control Variable Frequency Drive

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switch and pendant orradio controlReversing hoists require worm gear ormechanical load brake gearbox

hoist styles require standardgearbox Best and critical positioning control

es Eddy-Current load brake

Inverter-duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limitpendant or radio controlOpen loop hoist controls require worm gear ormechanical load brake gearboxClosed loop hoist controlswith motor encoder feedback

Acceleration resistor set requiredSize based on HP amp duty cycle

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration is load dependantVelocity and acceleration are minimally (open(closed loop) load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

More abrupt speed point transitions Smooth speed point transitions

Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

OFF point slowdown and braking withurrent brake CONTRA-TORQUEreg or

DB circuitry

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

No OFF point braking via control

OFF point braking by Eddy-CurrentCONTRA-TORQUEreg or DB circuitry

OFF point Dynamic Braking (DB)deceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allows reacceleration after relayoperation

Drive is stopped before each changein direction

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speedachieved

Power dissipated in rotor resistors in lowspeed points

Uses less power at reduced velocity and duringacceleration

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Power contactors eliminatedMotor current switched by solidSpare drive recommended

Requires wound rotor motorNo encoder feedback required

Inverter-duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Motor blower not typically required foroperation at reduced motor velocity as fulltorque is not available at zero speed

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and highduty cycles

September 2008

Frequency Drive

duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limit switches master switch

require worm gear ormechanical load brake gearbox

require standard gearbox butwith motor encoder feedback

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration are minimally (open loop) or not(closed loop) load dependant

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

Smooth speed point transitions

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

OFF point Dynamic Braking (DB) with programmabledeceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speed

Uses less power at reduced velocity and during

Power contactors eliminatedMotor current switched by solid-state componentsSpare drive recommended

duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and high

September 2008 FRONTLINE

CLASS 5010 WB DRUM BRAKES

AIST rated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Hold drive stationary when motor is off

Available in 8rdquo to 30rdquo wheel diameters

Torque ratings 100 through 9000 ft-lbs

Corrosion resistant pins are standard on all brake sizes

Grease fittings are standard on 19rdquo 23rdquo and 30rdquo brake sizes

Available with optional self-adjuster

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

AIST rated and suitable for all crane classes

Used on bridge and trolley (horizontal travel) drives

Provide fixed holding torque for parking

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000

Stopping torque ratings up to 300 850 and 1500

Available for AC or DC control systems

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL(Contactor) CONTROLS

Hoist drive styles include Eddy-Current Brakeand Reversing Hoist controls

Reversing Plugging control for bridge and trolley (travel) drives

Meets NEMA Service Classification I

Available in NEMA contactor sizes 2 through 6

Numerous modifications available

Uses Class 8503 Type M Line-ARCreg contactors static timers

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

Meet OSHAamp NEC requirements for AC

Available in continuous ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by

Mechanical amp electrical interlocks prevent switch

CLASS 6170 YOUNGSTOWNreg

HOIST POWER LIMIT SWITCHES

Final safety limits for hoist upper travel

Interrupts motor power directly

Available in ratings up to 500HP at 230VDC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER

FRONTLINEreg AC CRANE CONTROL

ated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Corrosion resistant pins are standard on all brake sizes

andard on 19rdquo 23rdquo and 30rdquo brake sizes

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

ated and suitable for all crane classes

travel) drives

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000 ft-lbs respectively

Stopping torque ratings up to 300 850 and 1500 ft-lbs respectively

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL

Current Brake CONTRA-TORQUEreg AC Dynamic Lowering

bridge and trolley (travel) drives

Available in NEMA contactor sizes 2 through 6 through 300HP for single or multiple motors

contactors static timers and frequency relays for acceleration

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

crane disconnect switch

ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by the enclosure handle

Mechanical amp electrical interlocks prevent switch operation with handle in the OFF position

HOIST POWER LIMIT SWITCHES

to 500HP at 230VDC or up to 400HP at 460VAC and 550VAC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on-line at wwwECandMnet

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER MILL DUTY CONTROL COMPONENTS27

CLASS

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

FRONTLINE

28

CLASS

FRONTLINEreg AC CRANE CONTROL

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

copyCopyright The Electric Controller and Manufacturing Company LLCPrinted in the USA

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

September 2008

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

copyCopyright The Electric Controller and Manufacturing Company LLC 2007

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

Page 18: Ac Crane Control

FRONTLINE

18

CLASS

APPROXIMATE NUMBER OCLASS 6715 TABWELD R

This tabulation is based on ECampM resistor designs for use with Class 6420 6421 6422 6426 controllerstabulation is for typical drive loading and for motors with standard NEMA secondary values of voltage andconsult factory with actual motor data

Max HPRating Single

Motor

6420Hoist

161 171 152

5 2 2 1

7 12 2 2 1

10 2 2 1

15 2 3 2

20 3 3 2

25 2 3 2

30 3 3 2

40 3 4 2

50 4 6 2

60 4 6 3

75 6 12 4

100 7 9 4

125 8 12 6

150 12 15 6

200 12 18 9

250 12 21 9

This tabulation is based on ECampM resistor designs for use with Class 6435drive loading and for motors with standard NEMA secondary values of voltage and

MaximumHP

HoistDynamic Lowering

NEMA Class152 162

5 1 175 1 110 1 215 2 220 2 225 2 330 2 340 3 350 3 460 3 475 4 6

NEMA SERVICE CLASSIF

Standard 6435 controllers meet the requirements of NEMA Services Crequirements of NEMA service classifications I (CMAA Sspeed point modification Form M3

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE NUMBER OF SEPARATELY MOUNTED STANDARSCLASS 6715 TABWELD RESISTOR SECTIONS (265rdquo LONG)

resistor designs for use with Class 6420 6421 6422 6426 controllers and is for estimatetabulation is for typical drive loading and for motors with standard NEMA secondary values of voltage and current For act

6421Hoist

6422Hoist

162 172 161 171 152

1 1 2 2 1

1 2 2 2 1

2 2 3 3 1

2 2 3 4 2

2 2 4 5 2

2 3 4 6 2

2 3 5 7 2

2 3 6 7 3

2 4 7 9 3

3 4 8 9 3

4 6 9 13 4

5 7 12 18 4

6 9 14 21 7

6 9 18 30 9

9 12 24 36 9

12 15 30 42 12

r designs for use with Class 6435 controller and is for estimate only This tabulation is fordrive loading and for motors with standard NEMA secondary values of voltage and current For actual quantities consult factory

HoistReversing

TravelReverse Plugging

NEMA Class NEMA Class152 162 1521 1 11 1 11 1 11 2 11 2 22 3 22 3 33 3 33 4 33 4 44 6 4

NEMA SERVICE CLASSIFICATIONS

meet the requirements of NEMA Services Classification II (CMAA service classifications A2 and B) to meet theervice classifications I (CMAA Service Classifications A1 C D E and F) the controller must be priced with the 5

September 2008

STANDARS

estimate only Thiscurrent For actual quantities

6426Hoist Bridge or Trolley

162 172

1 1

1 1

1 2

2 2

2 2

2 3

3 3

3 4

4 4

4 4

4 5

6 9

9 9

9 12

12 15

15 18

This tabulation is for typicalFor actual quantities consult factory

TravelReverse Plugging

NEMA Class162

11222334456

lassification II (CMAA service classifications A2 and B) to meet theE and F) the controller must be priced with the 5th

September 2008 FRONTLINE

MASTER SWITCHES AND

Class 9004 Type VGMaster Switch

CLASS 9004 VM OR CM

Control Class Speed Points

6420556

642156

642256

6426556

Motion Speed PointsHoist

(Dynamic Lowering)45

Hoist(Reversing)

45

Travel(Reverse Plugging)

45

Refer to Class 9004 catalog for more information

FRONTLINEreg AC CRANE CONTROL

GENERAL INFORMATIONMASTER SWITCHES AND MODIFICATIONS

Class 9004 Type CGMaster Switch

CLASS 9004 VM OR CM NEMA 1 ENCLOSED

oints Form VM TYPE

C1VG9

VG12

B1VG12VG16

D1VG12VG16

A1VG9

VG12

CONTROL 6435Form MA VM

A2AG9 VG9AG9 VG9

A3AG6 VG6AG9 VG9

A3AG6 VG6AG9 VG9

Refer to Class 9004 catalog for more information

AC CRANE CONTROL

19

CLASS

Class 9004 Type CGMaster Switch

CM TYPE

CG12CG12CG12CM16CG12CG16

CG12CG12

VM CMVG9 CG8VG9 CG12VG6 CG6VG9 CG8VG6 CG6VG9 CG8

CLASS

FRONTLINE

20

CLASS

GENERALMANUAL MAGNETIC DISC

The manual magnetic disconnect switch is used for protecting electrical crane circuits exOHSA requirements for a crane disconnect switchThe standard disconnect switch consists of

3mdashClass 8503 Type M form Y781 (with silver faced power contacttips) SPNO contactors The contactors are mechanically tiedOne normally open and one normally closed electricalinterlocks are included for indicating lights

1mdashTwo pole control molded case switch with padlock clip (1mdash460380230 to 255 volt fused control circuit transformer (1mdashIntermediate relay (CR)1mdashClass 9999AI1 Arc Suppressor

Volts5060Hz

NEMAContactor

Size

MaxAmperes

380or

460

4 1505 3006 6008 1350

Form

F30A

3 Main Line Power FusesStart-Stop Push Button

X11Additional Control CircuitNC interlocks can be added

A3 ldquoOnOffrdquo PushbuttonP1 Red ldquoOnrdquo Pilot LightP2 Green ldquoOffrdquo Pilot LightT12 200VA Additional Transformer Capacity

Class L fuse mounting is standard Customer

PILOT DEVICESThe pilot devices should be selected so the current rating is adequate for controlling the disconnect switch For coil9998 Coil Data catalog sheets An arc inhibitor may be required depending upon the ra

DISCONNEWhen applied to cranes the continuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated currentrequired by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

ORDERING INFORMATION REQUIRED1 Class2 Type3 Voltage4 Controller Modifications Specify Form

CLASS

FRONTLINEreg AC CRANE CONTROL

GENERAL INFORMATIONMANUAL MAGNETIC DISCONNECTS SWITCHES

etic disconnect switch is used for protecting electrical crane circuits except lifting magnet circuits The disconnect meets

ype M form Y781 (with silver faced power contacttips) SPNO contactors The contactors are mechanically tiedOne normally open and one normally closed electrical

case switch with padlock clip (CMCS)volt fused control circuit transformer (CTR)

CAM OPERATOR PREVENTSFROM CLOSING WHEN HANDLE IS IN OFFPOSITION

CONTACTORS OPERATED REMOTELY OR BYHANDLE ON THE ENCLOSURE

Amperes

Enclosures

General PurposeNEMA Type 1 gasketed

Dusttight NEMA Type 12Outdoor NEMA Type 3R

MFS12 MFA12MGS12 MGA12MHS12 MHA12MKS12 MKA12

MODIFICATIONSDescription

Main Line Power FusesStop Push Button

Additional Control Circuit Interlocks A maximum of 4 NONC interlocks can be added

Offrdquo PushbuttonRed ldquoOnrdquo Pilot LightGreen ldquoOffrdquo Pilot Light200VA Additional Transformer Capacity

Class L fuse mounting is standard Customer is to supply fuse rating

PILOT DEVICES SELECTIONThe pilot devices should be selected so the current rating is adequate for controlling the disconnect switch For coil currents9998 Coil Data catalog sheets An arc inhibitor may be required depending upon the ratings of the pilot device

DISCONNECT SWITCH SELECTIONcontinuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated current

required by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

September 2008

t lifting magnet circuits The disconnect meets

AM OPERATOR PREVENTS CONTACTORFROM CLOSING WHEN HANDLE IS IN OFF

ORS OPERATED REMOTELY OR BYHANDLE ON THE ENCLOSURE

currents refer to Class

continuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated currentrequired by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

September 2008 FRONTLINE

MANUAL MAGNETIC DISC

FRONTLINEreg AC CRANE CONTROL

MANUAL MAGNETIC DISCONNECT ELEMENTARY DIAGRA

AC CRANE CONTROL

21

CLASS

AGRAM

CLASS

FRONTLINE

22

CLASS

APPROXIMATE DIMESION

NEMASize

ContinuousAmpereRating A B C D

4 15018457

5127

8203

19483

5 30014356

3589

45114

28711

6 60018457

5127

8203

19483

8 135014356

5127

8203

28712

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMESIONS AND WEIGHTS

D E F G H J K L M

19483

30762

36914

2864727

315800

33838

3589

16229

36914

28711

33838

36914

267678

345876

36914

7178

72183

36914

19483

421067

421067

322818

4351105

451143

3589

10483

421067

28712

57838

441118

363922

345864

36914

70178

59137

741275

September 2008

M N

NetWeight

36914

15381

21096

36914

20508

235107

421067

20508

285130

741275

28508

300138

September 2008 FRONTLINE

MULTIMOTOR DRIVESTwo motors connected in parallel (duplex)control primary equipment and two sets of motor controlsecondary equipment are required in the controller Two sets ofpower resistors are also required

Four motors connected in parallel (quadruplex)necessary to double the duplex controller price given for twomotors in parallel One set of motor control primary and four setsof motor control secondary equipment are required Four sets opower resistors are required

CONTROLLERSNarrow width controllers ndash Most controllers ara narrow width construction These controllers when compared tostandard controllers are reduced width and increased height Fordetails see controller modifications and controller dimension

CONTROLLER MODIFICAT

Form Description

D6 Motor Isolating Circuit Breakers

B5 Brake Relay Reverse Plugging Controller Only

Y17 Arc Inhibitors Pendant Operated Controller

G95 Miniature Voltmeter Panel Mounted

G91 Miniature Ammeter Panel Mounted

E18 Narrow Width Panel

M24Substitute Type SZF Frequency Relay For ST1 StaticAcceleration Timers

H18Cabinet Space Heater Controlled By Interlock From MContactor

For Duplex Controllers For Duplex controllers multiply price by 2

1 Class2 Type3 Motor Horsepower4 Motor Primary Rated Voltage and Current

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATA

MULTIMOTOR DRIVESTwo motors connected in parallel (duplex) ndash One set of motorcontrol primary equipment and two sets of motor controlsecondary equipment are required in the controller Two sets of

Four motors connected in parallel (quadruplex) ndash It islex controller price given for two

motors in parallel One set of motor control primary and four setsof motor control secondary equipment are required Four sets of

CONTROLLERSMost controllers are also available in

a narrow width construction These controllers when compared tostandard controllers are reduced width and increased height For

see controller modifications and controller dimension

CONTROLLER MStandard controllers come equipped with the components listedSpecial features to be added to standard controllers are identifiedby Form number Most modifications are self

FORM D6 list motor isolation circuit breakers for use on duplexcontrollers For operation of the drive on one motor the motorline and connect breakers will disconnect one motor from the lineand connect the frequency relays to the power resistors of theother motor The brakes of the motor not in service are stillreleased electrically

FORM G95 lists a 3 frac12rdquo square miniature voltmeter to monitor onephase of motor primary voltage

FORM G9 lists a 3 frac12rdquo square miniature ammeter to monitor onephase of motor primary current Current transformersform are supplied Form G9 for motors above 10 HP20 HP 460 volts

CONTROLLER MODIFICATIONS

Brake Relay Reverse Plugging Controller Only

Arc Inhibitors Pendant Operated Controller

Substitute Type SZF Frequency Relay For ST1 Static

Cabinet Space Heater Controlled By Interlock From M

APPLICATION DATACLASS 6420 EDDYMAG

DYNAMIC MODEL AB-

MOTOR HPRATING

Brake Size

900 RMP Motors

Light DutyServices

SevereDutyServices

7 12 703

10 704

15 704

20 705

25 705

30 705

40 706

50 706

60 706

75 707

100 707

125 707

150 707200 708250 708300 708

ORDERING INFORMATION REQUIRED

5 Motor Secondary Rated Voltage andCurrent6 Controller Modifications Specify FormNumbers

7 Resistors Services Classification8 Master Switch Type and Form Number

AC CRANE CONTROL

23

CLASS

CLASS

CONTROLLER MODIFICATIONSStandard controllers come equipped with the components listedSpecial features to be added to standard controllers are identifiedby Form number Most modifications are self explanatory

list motor isolation circuit breakers for use on duplexcontrollers For operation of the drive on one motor the motorline and connect breakers will disconnect one motor from the lineand connect the frequency relays to the power resistors of the

motor The brakes of the motor not in service are still

lists a 3 frac12rdquo square miniature voltmeter to monitor one

lists a 3 frac12rdquo square miniature ammeter to monitor oneCurrent transformers with this

for motors above 10 HP 230 volt and

PPLICATION DATACLASS 6420 EDDYMAG HOIST

-FLOOR MOUNTED BRAKE

1200 RMP MotorsSevereDutyServices

Light DutyServices

SevereDutyServices

704 703 703

704 703 704

705 704 704

705 704 705

705 705 705

706 705 705

706 705 706

706 706 706

707 706 706

707 706 706

707 707 707

707 707 707

708 707 707708 707 708708 708 708--- 708 708

7 Resistors Services Classification8 Master Switch Type and Form Number

FRONTLINE

24

CLASS

CLASS

CRANE HOOK SPEED VS

CLASS 6421DYNAMIC LO

FIRST

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

O

FSY

NC

HR

ON

OU

SSP

EED

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

SY

NC

HR

ON

OU

SSP

PED

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATACRANE HOOK SPEED VS LOAD PERFORMANCE

CLASS 6420 EDDYMAGreg

CLASS 6421DYNAMIC LOWERING HOIST

FIRST

SECOND

THIRD

FOURTH

FIFTH

FIRST

SECOND

THIRD

FOURTH

FIFTH

40 60 80 100 120 140 160 180

LOAD PERFORMANCE IN OF SYNCHRONOUS SPEED

SECOND

THIRDFOURTH

FIFTH

FIRST

FIRST

SECOND amp THIRD

40 60 80 100 120 140 160 180

LOAD PERFORMANCE IN OF SYNCHRONOUS SPEED

September 2008

200

FIFTH

180 200

September 2008 FRONTLINE

CRANE HOOK SPEEDCLASS 6422 CONTRA

CLASS 6426

SECONDFIRST

FOURTH

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

O

FSY

NC

HR

ON

OU

SSP

EED

FIRST

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

SY

NC

HR

ON

OU

SSP

EED

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATACRANE HOOK SPEED VS LOAD PERFORMANCE

CLASS 6422 CONTRA-TORQUEreg

CLASS 6426 REVERSING HOIST CONTROL(With Mechanical Load Brake)

FIFTH

AUTOMATIC

FOURTH

THIRD

FIRST amp SECOND

SECOND

THIRD

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUS SPEED

SIXTH

SECOND

THIRD

FOURTH

FIFTH

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUSE SPEED

25

CLASS

CLASS

FIFTH

AUTOMATIC

FIRST amp SECOND

180 200

180 200

FRONTLINE

26

CLASS

AC CONTACTOR CONTROL

System AC Contactor Control

Crane Components

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switchradio controlReversing hoistsmechanical load brake gearboxAll other hoist stylesgearbox Best and critical positioning controlrequires E

ResistorsAcceleration resistor setSize based on HP amp duty cycle

Mo

tor

Perf

orm

an

ce

General

Velocity and acceleration is load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

More abrupt speed point

Slowdown

Travel Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

Hoist OFF point slowdown and braking withEddy-Current brakeDB circuitry

OFF Point

Travel No OFF point braking via control

Hoist OFF point braking by Eddybrake CONTRA

Reversing

Travel Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allowsoperation

Hoist Drive is stopped before each changein direction

Power ConsumptionPower dissipated in rotor resistors inspeed points

Component Wear

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Motors Encoders

Requires wound rotor motorNo encoder feedback

Motor blower not typically requiredoperation at reduced motor velocity as fulltorque is not available at zero speed

FRONTLINEreg AC CRANE CONTROL

AC CONTACTOR CONTROL vs DRIVES

AC Contactor Control Variable Frequency Drive

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switch and pendant orradio controlReversing hoists require worm gear ormechanical load brake gearbox

hoist styles require standardgearbox Best and critical positioning control

es Eddy-Current load brake

Inverter-duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limitpendant or radio controlOpen loop hoist controls require worm gear ormechanical load brake gearboxClosed loop hoist controlswith motor encoder feedback

Acceleration resistor set requiredSize based on HP amp duty cycle

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration is load dependantVelocity and acceleration are minimally (open(closed loop) load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

More abrupt speed point transitions Smooth speed point transitions

Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

OFF point slowdown and braking withurrent brake CONTRA-TORQUEreg or

DB circuitry

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

No OFF point braking via control

OFF point braking by Eddy-CurrentCONTRA-TORQUEreg or DB circuitry

OFF point Dynamic Braking (DB)deceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allows reacceleration after relayoperation

Drive is stopped before each changein direction

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speedachieved

Power dissipated in rotor resistors in lowspeed points

Uses less power at reduced velocity and duringacceleration

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Power contactors eliminatedMotor current switched by solidSpare drive recommended

Requires wound rotor motorNo encoder feedback required

Inverter-duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Motor blower not typically required foroperation at reduced motor velocity as fulltorque is not available at zero speed

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and highduty cycles

September 2008

Frequency Drive

duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limit switches master switch

require worm gear ormechanical load brake gearbox

require standard gearbox butwith motor encoder feedback

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration are minimally (open loop) or not(closed loop) load dependant

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

Smooth speed point transitions

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

OFF point Dynamic Braking (DB) with programmabledeceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speed

Uses less power at reduced velocity and during

Power contactors eliminatedMotor current switched by solid-state componentsSpare drive recommended

duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and high

September 2008 FRONTLINE

CLASS 5010 WB DRUM BRAKES

AIST rated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Hold drive stationary when motor is off

Available in 8rdquo to 30rdquo wheel diameters

Torque ratings 100 through 9000 ft-lbs

Corrosion resistant pins are standard on all brake sizes

Grease fittings are standard on 19rdquo 23rdquo and 30rdquo brake sizes

Available with optional self-adjuster

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

AIST rated and suitable for all crane classes

Used on bridge and trolley (horizontal travel) drives

Provide fixed holding torque for parking

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000

Stopping torque ratings up to 300 850 and 1500

Available for AC or DC control systems

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL(Contactor) CONTROLS

Hoist drive styles include Eddy-Current Brakeand Reversing Hoist controls

Reversing Plugging control for bridge and trolley (travel) drives

Meets NEMA Service Classification I

Available in NEMA contactor sizes 2 through 6

Numerous modifications available

Uses Class 8503 Type M Line-ARCreg contactors static timers

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

Meet OSHAamp NEC requirements for AC

Available in continuous ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by

Mechanical amp electrical interlocks prevent switch

CLASS 6170 YOUNGSTOWNreg

HOIST POWER LIMIT SWITCHES

Final safety limits for hoist upper travel

Interrupts motor power directly

Available in ratings up to 500HP at 230VDC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER

FRONTLINEreg AC CRANE CONTROL

ated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Corrosion resistant pins are standard on all brake sizes

andard on 19rdquo 23rdquo and 30rdquo brake sizes

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

ated and suitable for all crane classes

travel) drives

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000 ft-lbs respectively

Stopping torque ratings up to 300 850 and 1500 ft-lbs respectively

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL

Current Brake CONTRA-TORQUEreg AC Dynamic Lowering

bridge and trolley (travel) drives

Available in NEMA contactor sizes 2 through 6 through 300HP for single or multiple motors

contactors static timers and frequency relays for acceleration

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

crane disconnect switch

ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by the enclosure handle

Mechanical amp electrical interlocks prevent switch operation with handle in the OFF position

HOIST POWER LIMIT SWITCHES

to 500HP at 230VDC or up to 400HP at 460VAC and 550VAC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on-line at wwwECandMnet

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER MILL DUTY CONTROL COMPONENTS27

CLASS

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

FRONTLINE

28

CLASS

FRONTLINEreg AC CRANE CONTROL

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

copyCopyright The Electric Controller and Manufacturing Company LLCPrinted in the USA

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

September 2008

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

copyCopyright The Electric Controller and Manufacturing Company LLC 2007

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

Page 19: Ac Crane Control

September 2008 FRONTLINE

MASTER SWITCHES AND

Class 9004 Type VGMaster Switch

CLASS 9004 VM OR CM

Control Class Speed Points

6420556

642156

642256

6426556

Motion Speed PointsHoist

(Dynamic Lowering)45

Hoist(Reversing)

45

Travel(Reverse Plugging)

45

Refer to Class 9004 catalog for more information

FRONTLINEreg AC CRANE CONTROL

GENERAL INFORMATIONMASTER SWITCHES AND MODIFICATIONS

Class 9004 Type CGMaster Switch

CLASS 9004 VM OR CM NEMA 1 ENCLOSED

oints Form VM TYPE

C1VG9

VG12

B1VG12VG16

D1VG12VG16

A1VG9

VG12

CONTROL 6435Form MA VM

A2AG9 VG9AG9 VG9

A3AG6 VG6AG9 VG9

A3AG6 VG6AG9 VG9

Refer to Class 9004 catalog for more information

AC CRANE CONTROL

19

CLASS

Class 9004 Type CGMaster Switch

CM TYPE

CG12CG12CG12CM16CG12CG16

CG12CG12

VM CMVG9 CG8VG9 CG12VG6 CG6VG9 CG8VG6 CG6VG9 CG8

CLASS

FRONTLINE

20

CLASS

GENERALMANUAL MAGNETIC DISC

The manual magnetic disconnect switch is used for protecting electrical crane circuits exOHSA requirements for a crane disconnect switchThe standard disconnect switch consists of

3mdashClass 8503 Type M form Y781 (with silver faced power contacttips) SPNO contactors The contactors are mechanically tiedOne normally open and one normally closed electricalinterlocks are included for indicating lights

1mdashTwo pole control molded case switch with padlock clip (1mdash460380230 to 255 volt fused control circuit transformer (1mdashIntermediate relay (CR)1mdashClass 9999AI1 Arc Suppressor

Volts5060Hz

NEMAContactor

Size

MaxAmperes

380or

460

4 1505 3006 6008 1350

Form

F30A

3 Main Line Power FusesStart-Stop Push Button

X11Additional Control CircuitNC interlocks can be added

A3 ldquoOnOffrdquo PushbuttonP1 Red ldquoOnrdquo Pilot LightP2 Green ldquoOffrdquo Pilot LightT12 200VA Additional Transformer Capacity

Class L fuse mounting is standard Customer

PILOT DEVICESThe pilot devices should be selected so the current rating is adequate for controlling the disconnect switch For coil9998 Coil Data catalog sheets An arc inhibitor may be required depending upon the ra

DISCONNEWhen applied to cranes the continuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated currentrequired by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

ORDERING INFORMATION REQUIRED1 Class2 Type3 Voltage4 Controller Modifications Specify Form

CLASS

FRONTLINEreg AC CRANE CONTROL

GENERAL INFORMATIONMANUAL MAGNETIC DISCONNECTS SWITCHES

etic disconnect switch is used for protecting electrical crane circuits except lifting magnet circuits The disconnect meets

ype M form Y781 (with silver faced power contacttips) SPNO contactors The contactors are mechanically tiedOne normally open and one normally closed electrical

case switch with padlock clip (CMCS)volt fused control circuit transformer (CTR)

CAM OPERATOR PREVENTSFROM CLOSING WHEN HANDLE IS IN OFFPOSITION

CONTACTORS OPERATED REMOTELY OR BYHANDLE ON THE ENCLOSURE

Amperes

Enclosures

General PurposeNEMA Type 1 gasketed

Dusttight NEMA Type 12Outdoor NEMA Type 3R

MFS12 MFA12MGS12 MGA12MHS12 MHA12MKS12 MKA12

MODIFICATIONSDescription

Main Line Power FusesStop Push Button

Additional Control Circuit Interlocks A maximum of 4 NONC interlocks can be added

Offrdquo PushbuttonRed ldquoOnrdquo Pilot LightGreen ldquoOffrdquo Pilot Light200VA Additional Transformer Capacity

Class L fuse mounting is standard Customer is to supply fuse rating

PILOT DEVICES SELECTIONThe pilot devices should be selected so the current rating is adequate for controlling the disconnect switch For coil currents9998 Coil Data catalog sheets An arc inhibitor may be required depending upon the ratings of the pilot device

DISCONNECT SWITCH SELECTIONcontinuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated current

required by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

September 2008

t lifting magnet circuits The disconnect meets

AM OPERATOR PREVENTS CONTACTORFROM CLOSING WHEN HANDLE IS IN OFF

ORS OPERATED REMOTELY OR BYHANDLE ON THE ENCLOSURE

currents refer to Class

continuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated currentrequired by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

September 2008 FRONTLINE

MANUAL MAGNETIC DISC

FRONTLINEreg AC CRANE CONTROL

MANUAL MAGNETIC DISCONNECT ELEMENTARY DIAGRA

AC CRANE CONTROL

21

CLASS

AGRAM

CLASS

FRONTLINE

22

CLASS

APPROXIMATE DIMESION

NEMASize

ContinuousAmpereRating A B C D

4 15018457

5127

8203

19483

5 30014356

3589

45114

28711

6 60018457

5127

8203

19483

8 135014356

5127

8203

28712

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMESIONS AND WEIGHTS

D E F G H J K L M

19483

30762

36914

2864727

315800

33838

3589

16229

36914

28711

33838

36914

267678

345876

36914

7178

72183

36914

19483

421067

421067

322818

4351105

451143

3589

10483

421067

28712

57838

441118

363922

345864

36914

70178

59137

741275

September 2008

M N

NetWeight

36914

15381

21096

36914

20508

235107

421067

20508

285130

741275

28508

300138

September 2008 FRONTLINE

MULTIMOTOR DRIVESTwo motors connected in parallel (duplex)control primary equipment and two sets of motor controlsecondary equipment are required in the controller Two sets ofpower resistors are also required

Four motors connected in parallel (quadruplex)necessary to double the duplex controller price given for twomotors in parallel One set of motor control primary and four setsof motor control secondary equipment are required Four sets opower resistors are required

CONTROLLERSNarrow width controllers ndash Most controllers ara narrow width construction These controllers when compared tostandard controllers are reduced width and increased height Fordetails see controller modifications and controller dimension

CONTROLLER MODIFICAT

Form Description

D6 Motor Isolating Circuit Breakers

B5 Brake Relay Reverse Plugging Controller Only

Y17 Arc Inhibitors Pendant Operated Controller

G95 Miniature Voltmeter Panel Mounted

G91 Miniature Ammeter Panel Mounted

E18 Narrow Width Panel

M24Substitute Type SZF Frequency Relay For ST1 StaticAcceleration Timers

H18Cabinet Space Heater Controlled By Interlock From MContactor

For Duplex Controllers For Duplex controllers multiply price by 2

1 Class2 Type3 Motor Horsepower4 Motor Primary Rated Voltage and Current

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATA

MULTIMOTOR DRIVESTwo motors connected in parallel (duplex) ndash One set of motorcontrol primary equipment and two sets of motor controlsecondary equipment are required in the controller Two sets of

Four motors connected in parallel (quadruplex) ndash It islex controller price given for two

motors in parallel One set of motor control primary and four setsof motor control secondary equipment are required Four sets of

CONTROLLERSMost controllers are also available in

a narrow width construction These controllers when compared tostandard controllers are reduced width and increased height For

see controller modifications and controller dimension

CONTROLLER MStandard controllers come equipped with the components listedSpecial features to be added to standard controllers are identifiedby Form number Most modifications are self

FORM D6 list motor isolation circuit breakers for use on duplexcontrollers For operation of the drive on one motor the motorline and connect breakers will disconnect one motor from the lineand connect the frequency relays to the power resistors of theother motor The brakes of the motor not in service are stillreleased electrically

FORM G95 lists a 3 frac12rdquo square miniature voltmeter to monitor onephase of motor primary voltage

FORM G9 lists a 3 frac12rdquo square miniature ammeter to monitor onephase of motor primary current Current transformersform are supplied Form G9 for motors above 10 HP20 HP 460 volts

CONTROLLER MODIFICATIONS

Brake Relay Reverse Plugging Controller Only

Arc Inhibitors Pendant Operated Controller

Substitute Type SZF Frequency Relay For ST1 Static

Cabinet Space Heater Controlled By Interlock From M

APPLICATION DATACLASS 6420 EDDYMAG

DYNAMIC MODEL AB-

MOTOR HPRATING

Brake Size

900 RMP Motors

Light DutyServices

SevereDutyServices

7 12 703

10 704

15 704

20 705

25 705

30 705

40 706

50 706

60 706

75 707

100 707

125 707

150 707200 708250 708300 708

ORDERING INFORMATION REQUIRED

5 Motor Secondary Rated Voltage andCurrent6 Controller Modifications Specify FormNumbers

7 Resistors Services Classification8 Master Switch Type and Form Number

AC CRANE CONTROL

23

CLASS

CLASS

CONTROLLER MODIFICATIONSStandard controllers come equipped with the components listedSpecial features to be added to standard controllers are identifiedby Form number Most modifications are self explanatory

list motor isolation circuit breakers for use on duplexcontrollers For operation of the drive on one motor the motorline and connect breakers will disconnect one motor from the lineand connect the frequency relays to the power resistors of the

motor The brakes of the motor not in service are still

lists a 3 frac12rdquo square miniature voltmeter to monitor one

lists a 3 frac12rdquo square miniature ammeter to monitor oneCurrent transformers with this

for motors above 10 HP 230 volt and

PPLICATION DATACLASS 6420 EDDYMAG HOIST

-FLOOR MOUNTED BRAKE

1200 RMP MotorsSevereDutyServices

Light DutyServices

SevereDutyServices

704 703 703

704 703 704

705 704 704

705 704 705

705 705 705

706 705 705

706 705 706

706 706 706

707 706 706

707 706 706

707 707 707

707 707 707

708 707 707708 707 708708 708 708--- 708 708

7 Resistors Services Classification8 Master Switch Type and Form Number

FRONTLINE

24

CLASS

CLASS

CRANE HOOK SPEED VS

CLASS 6421DYNAMIC LO

FIRST

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

O

FSY

NC

HR

ON

OU

SSP

EED

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

SY

NC

HR

ON

OU

SSP

PED

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATACRANE HOOK SPEED VS LOAD PERFORMANCE

CLASS 6420 EDDYMAGreg

CLASS 6421DYNAMIC LOWERING HOIST

FIRST

SECOND

THIRD

FOURTH

FIFTH

FIRST

SECOND

THIRD

FOURTH

FIFTH

40 60 80 100 120 140 160 180

LOAD PERFORMANCE IN OF SYNCHRONOUS SPEED

SECOND

THIRDFOURTH

FIFTH

FIRST

FIRST

SECOND amp THIRD

40 60 80 100 120 140 160 180

LOAD PERFORMANCE IN OF SYNCHRONOUS SPEED

September 2008

200

FIFTH

180 200

September 2008 FRONTLINE

CRANE HOOK SPEEDCLASS 6422 CONTRA

CLASS 6426

SECONDFIRST

FOURTH

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

O

FSY

NC

HR

ON

OU

SSP

EED

FIRST

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

SY

NC

HR

ON

OU

SSP

EED

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATACRANE HOOK SPEED VS LOAD PERFORMANCE

CLASS 6422 CONTRA-TORQUEreg

CLASS 6426 REVERSING HOIST CONTROL(With Mechanical Load Brake)

FIFTH

AUTOMATIC

FOURTH

THIRD

FIRST amp SECOND

SECOND

THIRD

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUS SPEED

SIXTH

SECOND

THIRD

FOURTH

FIFTH

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUSE SPEED

25

CLASS

CLASS

FIFTH

AUTOMATIC

FIRST amp SECOND

180 200

180 200

FRONTLINE

26

CLASS

AC CONTACTOR CONTROL

System AC Contactor Control

Crane Components

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switchradio controlReversing hoistsmechanical load brake gearboxAll other hoist stylesgearbox Best and critical positioning controlrequires E

ResistorsAcceleration resistor setSize based on HP amp duty cycle

Mo

tor

Perf

orm

an

ce

General

Velocity and acceleration is load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

More abrupt speed point

Slowdown

Travel Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

Hoist OFF point slowdown and braking withEddy-Current brakeDB circuitry

OFF Point

Travel No OFF point braking via control

Hoist OFF point braking by Eddybrake CONTRA

Reversing

Travel Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allowsoperation

Hoist Drive is stopped before each changein direction

Power ConsumptionPower dissipated in rotor resistors inspeed points

Component Wear

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Motors Encoders

Requires wound rotor motorNo encoder feedback

Motor blower not typically requiredoperation at reduced motor velocity as fulltorque is not available at zero speed

FRONTLINEreg AC CRANE CONTROL

AC CONTACTOR CONTROL vs DRIVES

AC Contactor Control Variable Frequency Drive

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switch and pendant orradio controlReversing hoists require worm gear ormechanical load brake gearbox

hoist styles require standardgearbox Best and critical positioning control

es Eddy-Current load brake

Inverter-duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limitpendant or radio controlOpen loop hoist controls require worm gear ormechanical load brake gearboxClosed loop hoist controlswith motor encoder feedback

Acceleration resistor set requiredSize based on HP amp duty cycle

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration is load dependantVelocity and acceleration are minimally (open(closed loop) load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

More abrupt speed point transitions Smooth speed point transitions

Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

OFF point slowdown and braking withurrent brake CONTRA-TORQUEreg or

DB circuitry

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

No OFF point braking via control

OFF point braking by Eddy-CurrentCONTRA-TORQUEreg or DB circuitry

OFF point Dynamic Braking (DB)deceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allows reacceleration after relayoperation

Drive is stopped before each changein direction

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speedachieved

Power dissipated in rotor resistors in lowspeed points

Uses less power at reduced velocity and duringacceleration

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Power contactors eliminatedMotor current switched by solidSpare drive recommended

Requires wound rotor motorNo encoder feedback required

Inverter-duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Motor blower not typically required foroperation at reduced motor velocity as fulltorque is not available at zero speed

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and highduty cycles

September 2008

Frequency Drive

duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limit switches master switch

require worm gear ormechanical load brake gearbox

require standard gearbox butwith motor encoder feedback

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration are minimally (open loop) or not(closed loop) load dependant

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

Smooth speed point transitions

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

OFF point Dynamic Braking (DB) with programmabledeceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speed

Uses less power at reduced velocity and during

Power contactors eliminatedMotor current switched by solid-state componentsSpare drive recommended

duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and high

September 2008 FRONTLINE

CLASS 5010 WB DRUM BRAKES

AIST rated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Hold drive stationary when motor is off

Available in 8rdquo to 30rdquo wheel diameters

Torque ratings 100 through 9000 ft-lbs

Corrosion resistant pins are standard on all brake sizes

Grease fittings are standard on 19rdquo 23rdquo and 30rdquo brake sizes

Available with optional self-adjuster

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

AIST rated and suitable for all crane classes

Used on bridge and trolley (horizontal travel) drives

Provide fixed holding torque for parking

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000

Stopping torque ratings up to 300 850 and 1500

Available for AC or DC control systems

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL(Contactor) CONTROLS

Hoist drive styles include Eddy-Current Brakeand Reversing Hoist controls

Reversing Plugging control for bridge and trolley (travel) drives

Meets NEMA Service Classification I

Available in NEMA contactor sizes 2 through 6

Numerous modifications available

Uses Class 8503 Type M Line-ARCreg contactors static timers

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

Meet OSHAamp NEC requirements for AC

Available in continuous ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by

Mechanical amp electrical interlocks prevent switch

CLASS 6170 YOUNGSTOWNreg

HOIST POWER LIMIT SWITCHES

Final safety limits for hoist upper travel

Interrupts motor power directly

Available in ratings up to 500HP at 230VDC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER

FRONTLINEreg AC CRANE CONTROL

ated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Corrosion resistant pins are standard on all brake sizes

andard on 19rdquo 23rdquo and 30rdquo brake sizes

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

ated and suitable for all crane classes

travel) drives

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000 ft-lbs respectively

Stopping torque ratings up to 300 850 and 1500 ft-lbs respectively

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL

Current Brake CONTRA-TORQUEreg AC Dynamic Lowering

bridge and trolley (travel) drives

Available in NEMA contactor sizes 2 through 6 through 300HP for single or multiple motors

contactors static timers and frequency relays for acceleration

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

crane disconnect switch

ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by the enclosure handle

Mechanical amp electrical interlocks prevent switch operation with handle in the OFF position

HOIST POWER LIMIT SWITCHES

to 500HP at 230VDC or up to 400HP at 460VAC and 550VAC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on-line at wwwECandMnet

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER MILL DUTY CONTROL COMPONENTS27

CLASS

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

FRONTLINE

28

CLASS

FRONTLINEreg AC CRANE CONTROL

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

copyCopyright The Electric Controller and Manufacturing Company LLCPrinted in the USA

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

September 2008

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

copyCopyright The Electric Controller and Manufacturing Company LLC 2007

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

Page 20: Ac Crane Control

FRONTLINE

20

CLASS

GENERALMANUAL MAGNETIC DISC

The manual magnetic disconnect switch is used for protecting electrical crane circuits exOHSA requirements for a crane disconnect switchThe standard disconnect switch consists of

3mdashClass 8503 Type M form Y781 (with silver faced power contacttips) SPNO contactors The contactors are mechanically tiedOne normally open and one normally closed electricalinterlocks are included for indicating lights

1mdashTwo pole control molded case switch with padlock clip (1mdash460380230 to 255 volt fused control circuit transformer (1mdashIntermediate relay (CR)1mdashClass 9999AI1 Arc Suppressor

Volts5060Hz

NEMAContactor

Size

MaxAmperes

380or

460

4 1505 3006 6008 1350

Form

F30A

3 Main Line Power FusesStart-Stop Push Button

X11Additional Control CircuitNC interlocks can be added

A3 ldquoOnOffrdquo PushbuttonP1 Red ldquoOnrdquo Pilot LightP2 Green ldquoOffrdquo Pilot LightT12 200VA Additional Transformer Capacity

Class L fuse mounting is standard Customer

PILOT DEVICESThe pilot devices should be selected so the current rating is adequate for controlling the disconnect switch For coil9998 Coil Data catalog sheets An arc inhibitor may be required depending upon the ra

DISCONNEWhen applied to cranes the continuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated currentrequired by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

ORDERING INFORMATION REQUIRED1 Class2 Type3 Voltage4 Controller Modifications Specify Form

CLASS

FRONTLINEreg AC CRANE CONTROL

GENERAL INFORMATIONMANUAL MAGNETIC DISCONNECTS SWITCHES

etic disconnect switch is used for protecting electrical crane circuits except lifting magnet circuits The disconnect meets

ype M form Y781 (with silver faced power contacttips) SPNO contactors The contactors are mechanically tiedOne normally open and one normally closed electrical

case switch with padlock clip (CMCS)volt fused control circuit transformer (CTR)

CAM OPERATOR PREVENTSFROM CLOSING WHEN HANDLE IS IN OFFPOSITION

CONTACTORS OPERATED REMOTELY OR BYHANDLE ON THE ENCLOSURE

Amperes

Enclosures

General PurposeNEMA Type 1 gasketed

Dusttight NEMA Type 12Outdoor NEMA Type 3R

MFS12 MFA12MGS12 MGA12MHS12 MHA12MKS12 MKA12

MODIFICATIONSDescription

Main Line Power FusesStop Push Button

Additional Control Circuit Interlocks A maximum of 4 NONC interlocks can be added

Offrdquo PushbuttonRed ldquoOnrdquo Pilot LightGreen ldquoOffrdquo Pilot Light200VA Additional Transformer Capacity

Class L fuse mounting is standard Customer is to supply fuse rating

PILOT DEVICES SELECTIONThe pilot devices should be selected so the current rating is adequate for controlling the disconnect switch For coil currents9998 Coil Data catalog sheets An arc inhibitor may be required depending upon the ratings of the pilot device

DISCONNECT SWITCH SELECTIONcontinuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated current

required by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

September 2008

t lifting magnet circuits The disconnect meets

AM OPERATOR PREVENTS CONTACTORFROM CLOSING WHEN HANDLE IS IN OFF

ORS OPERATED REMOTELY OR BYHANDLE ON THE ENCLOSURE

currents refer to Class

continuous ampere rating of the disconnect switch shall not be less than 50 percent of the total rated currentrequired by all motors on the crane nor less than 75 percent of the rated motor current required by any single crane motion

September 2008 FRONTLINE

MANUAL MAGNETIC DISC

FRONTLINEreg AC CRANE CONTROL

MANUAL MAGNETIC DISCONNECT ELEMENTARY DIAGRA

AC CRANE CONTROL

21

CLASS

AGRAM

CLASS

FRONTLINE

22

CLASS

APPROXIMATE DIMESION

NEMASize

ContinuousAmpereRating A B C D

4 15018457

5127

8203

19483

5 30014356

3589

45114

28711

6 60018457

5127

8203

19483

8 135014356

5127

8203

28712

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMESIONS AND WEIGHTS

D E F G H J K L M

19483

30762

36914

2864727

315800

33838

3589

16229

36914

28711

33838

36914

267678

345876

36914

7178

72183

36914

19483

421067

421067

322818

4351105

451143

3589

10483

421067

28712

57838

441118

363922

345864

36914

70178

59137

741275

September 2008

M N

NetWeight

36914

15381

21096

36914

20508

235107

421067

20508

285130

741275

28508

300138

September 2008 FRONTLINE

MULTIMOTOR DRIVESTwo motors connected in parallel (duplex)control primary equipment and two sets of motor controlsecondary equipment are required in the controller Two sets ofpower resistors are also required

Four motors connected in parallel (quadruplex)necessary to double the duplex controller price given for twomotors in parallel One set of motor control primary and four setsof motor control secondary equipment are required Four sets opower resistors are required

CONTROLLERSNarrow width controllers ndash Most controllers ara narrow width construction These controllers when compared tostandard controllers are reduced width and increased height Fordetails see controller modifications and controller dimension

CONTROLLER MODIFICAT

Form Description

D6 Motor Isolating Circuit Breakers

B5 Brake Relay Reverse Plugging Controller Only

Y17 Arc Inhibitors Pendant Operated Controller

G95 Miniature Voltmeter Panel Mounted

G91 Miniature Ammeter Panel Mounted

E18 Narrow Width Panel

M24Substitute Type SZF Frequency Relay For ST1 StaticAcceleration Timers

H18Cabinet Space Heater Controlled By Interlock From MContactor

For Duplex Controllers For Duplex controllers multiply price by 2

1 Class2 Type3 Motor Horsepower4 Motor Primary Rated Voltage and Current

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATA

MULTIMOTOR DRIVESTwo motors connected in parallel (duplex) ndash One set of motorcontrol primary equipment and two sets of motor controlsecondary equipment are required in the controller Two sets of

Four motors connected in parallel (quadruplex) ndash It islex controller price given for two

motors in parallel One set of motor control primary and four setsof motor control secondary equipment are required Four sets of

CONTROLLERSMost controllers are also available in

a narrow width construction These controllers when compared tostandard controllers are reduced width and increased height For

see controller modifications and controller dimension

CONTROLLER MStandard controllers come equipped with the components listedSpecial features to be added to standard controllers are identifiedby Form number Most modifications are self

FORM D6 list motor isolation circuit breakers for use on duplexcontrollers For operation of the drive on one motor the motorline and connect breakers will disconnect one motor from the lineand connect the frequency relays to the power resistors of theother motor The brakes of the motor not in service are stillreleased electrically

FORM G95 lists a 3 frac12rdquo square miniature voltmeter to monitor onephase of motor primary voltage

FORM G9 lists a 3 frac12rdquo square miniature ammeter to monitor onephase of motor primary current Current transformersform are supplied Form G9 for motors above 10 HP20 HP 460 volts

CONTROLLER MODIFICATIONS

Brake Relay Reverse Plugging Controller Only

Arc Inhibitors Pendant Operated Controller

Substitute Type SZF Frequency Relay For ST1 Static

Cabinet Space Heater Controlled By Interlock From M

APPLICATION DATACLASS 6420 EDDYMAG

DYNAMIC MODEL AB-

MOTOR HPRATING

Brake Size

900 RMP Motors

Light DutyServices

SevereDutyServices

7 12 703

10 704

15 704

20 705

25 705

30 705

40 706

50 706

60 706

75 707

100 707

125 707

150 707200 708250 708300 708

ORDERING INFORMATION REQUIRED

5 Motor Secondary Rated Voltage andCurrent6 Controller Modifications Specify FormNumbers

7 Resistors Services Classification8 Master Switch Type and Form Number

AC CRANE CONTROL

23

CLASS

CLASS

CONTROLLER MODIFICATIONSStandard controllers come equipped with the components listedSpecial features to be added to standard controllers are identifiedby Form number Most modifications are self explanatory

list motor isolation circuit breakers for use on duplexcontrollers For operation of the drive on one motor the motorline and connect breakers will disconnect one motor from the lineand connect the frequency relays to the power resistors of the

motor The brakes of the motor not in service are still

lists a 3 frac12rdquo square miniature voltmeter to monitor one

lists a 3 frac12rdquo square miniature ammeter to monitor oneCurrent transformers with this

for motors above 10 HP 230 volt and

PPLICATION DATACLASS 6420 EDDYMAG HOIST

-FLOOR MOUNTED BRAKE

1200 RMP MotorsSevereDutyServices

Light DutyServices

SevereDutyServices

704 703 703

704 703 704

705 704 704

705 704 705

705 705 705

706 705 705

706 705 706

706 706 706

707 706 706

707 706 706

707 707 707

707 707 707

708 707 707708 707 708708 708 708--- 708 708

7 Resistors Services Classification8 Master Switch Type and Form Number

FRONTLINE

24

CLASS

CLASS

CRANE HOOK SPEED VS

CLASS 6421DYNAMIC LO

FIRST

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

O

FSY

NC

HR

ON

OU

SSP

EED

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

SY

NC

HR

ON

OU

SSP

PED

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATACRANE HOOK SPEED VS LOAD PERFORMANCE

CLASS 6420 EDDYMAGreg

CLASS 6421DYNAMIC LOWERING HOIST

FIRST

SECOND

THIRD

FOURTH

FIFTH

FIRST

SECOND

THIRD

FOURTH

FIFTH

40 60 80 100 120 140 160 180

LOAD PERFORMANCE IN OF SYNCHRONOUS SPEED

SECOND

THIRDFOURTH

FIFTH

FIRST

FIRST

SECOND amp THIRD

40 60 80 100 120 140 160 180

LOAD PERFORMANCE IN OF SYNCHRONOUS SPEED

September 2008

200

FIFTH

180 200

September 2008 FRONTLINE

CRANE HOOK SPEEDCLASS 6422 CONTRA

CLASS 6426

SECONDFIRST

FOURTH

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

O

FSY

NC

HR

ON

OU

SSP

EED

FIRST

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

SY

NC

HR

ON

OU

SSP

EED

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATACRANE HOOK SPEED VS LOAD PERFORMANCE

CLASS 6422 CONTRA-TORQUEreg

CLASS 6426 REVERSING HOIST CONTROL(With Mechanical Load Brake)

FIFTH

AUTOMATIC

FOURTH

THIRD

FIRST amp SECOND

SECOND

THIRD

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUS SPEED

SIXTH

SECOND

THIRD

FOURTH

FIFTH

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUSE SPEED

25

CLASS

CLASS

FIFTH

AUTOMATIC

FIRST amp SECOND

180 200

180 200

FRONTLINE

26

CLASS

AC CONTACTOR CONTROL

System AC Contactor Control

Crane Components

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switchradio controlReversing hoistsmechanical load brake gearboxAll other hoist stylesgearbox Best and critical positioning controlrequires E

ResistorsAcceleration resistor setSize based on HP amp duty cycle

Mo

tor

Perf

orm

an

ce

General

Velocity and acceleration is load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

More abrupt speed point

Slowdown

Travel Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

Hoist OFF point slowdown and braking withEddy-Current brakeDB circuitry

OFF Point

Travel No OFF point braking via control

Hoist OFF point braking by Eddybrake CONTRA

Reversing

Travel Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allowsoperation

Hoist Drive is stopped before each changein direction

Power ConsumptionPower dissipated in rotor resistors inspeed points

Component Wear

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Motors Encoders

Requires wound rotor motorNo encoder feedback

Motor blower not typically requiredoperation at reduced motor velocity as fulltorque is not available at zero speed

FRONTLINEreg AC CRANE CONTROL

AC CONTACTOR CONTROL vs DRIVES

AC Contactor Control Variable Frequency Drive

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switch and pendant orradio controlReversing hoists require worm gear ormechanical load brake gearbox

hoist styles require standardgearbox Best and critical positioning control

es Eddy-Current load brake

Inverter-duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limitpendant or radio controlOpen loop hoist controls require worm gear ormechanical load brake gearboxClosed loop hoist controlswith motor encoder feedback

Acceleration resistor set requiredSize based on HP amp duty cycle

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration is load dependantVelocity and acceleration are minimally (open(closed loop) load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

More abrupt speed point transitions Smooth speed point transitions

Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

OFF point slowdown and braking withurrent brake CONTRA-TORQUEreg or

DB circuitry

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

No OFF point braking via control

OFF point braking by Eddy-CurrentCONTRA-TORQUEreg or DB circuitry

OFF point Dynamic Braking (DB)deceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allows reacceleration after relayoperation

Drive is stopped before each changein direction

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speedachieved

Power dissipated in rotor resistors in lowspeed points

Uses less power at reduced velocity and duringacceleration

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Power contactors eliminatedMotor current switched by solidSpare drive recommended

Requires wound rotor motorNo encoder feedback required

Inverter-duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Motor blower not typically required foroperation at reduced motor velocity as fulltorque is not available at zero speed

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and highduty cycles

September 2008

Frequency Drive

duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limit switches master switch

require worm gear ormechanical load brake gearbox

require standard gearbox butwith motor encoder feedback

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration are minimally (open loop) or not(closed loop) load dependant

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

Smooth speed point transitions

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

OFF point Dynamic Braking (DB) with programmabledeceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speed

Uses less power at reduced velocity and during

Power contactors eliminatedMotor current switched by solid-state componentsSpare drive recommended

duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and high

September 2008 FRONTLINE

CLASS 5010 WB DRUM BRAKES

AIST rated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Hold drive stationary when motor is off

Available in 8rdquo to 30rdquo wheel diameters

Torque ratings 100 through 9000 ft-lbs

Corrosion resistant pins are standard on all brake sizes

Grease fittings are standard on 19rdquo 23rdquo and 30rdquo brake sizes

Available with optional self-adjuster

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

AIST rated and suitable for all crane classes

Used on bridge and trolley (horizontal travel) drives

Provide fixed holding torque for parking

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000

Stopping torque ratings up to 300 850 and 1500

Available for AC or DC control systems

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL(Contactor) CONTROLS

Hoist drive styles include Eddy-Current Brakeand Reversing Hoist controls

Reversing Plugging control for bridge and trolley (travel) drives

Meets NEMA Service Classification I

Available in NEMA contactor sizes 2 through 6

Numerous modifications available

Uses Class 8503 Type M Line-ARCreg contactors static timers

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

Meet OSHAamp NEC requirements for AC

Available in continuous ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by

Mechanical amp electrical interlocks prevent switch

CLASS 6170 YOUNGSTOWNreg

HOIST POWER LIMIT SWITCHES

Final safety limits for hoist upper travel

Interrupts motor power directly

Available in ratings up to 500HP at 230VDC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER

FRONTLINEreg AC CRANE CONTROL

ated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Corrosion resistant pins are standard on all brake sizes

andard on 19rdquo 23rdquo and 30rdquo brake sizes

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

ated and suitable for all crane classes

travel) drives

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000 ft-lbs respectively

Stopping torque ratings up to 300 850 and 1500 ft-lbs respectively

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL

Current Brake CONTRA-TORQUEreg AC Dynamic Lowering

bridge and trolley (travel) drives

Available in NEMA contactor sizes 2 through 6 through 300HP for single or multiple motors

contactors static timers and frequency relays for acceleration

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

crane disconnect switch

ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by the enclosure handle

Mechanical amp electrical interlocks prevent switch operation with handle in the OFF position

HOIST POWER LIMIT SWITCHES

to 500HP at 230VDC or up to 400HP at 460VAC and 550VAC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on-line at wwwECandMnet

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER MILL DUTY CONTROL COMPONENTS27

CLASS

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

FRONTLINE

28

CLASS

FRONTLINEreg AC CRANE CONTROL

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

copyCopyright The Electric Controller and Manufacturing Company LLCPrinted in the USA

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

September 2008

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

copyCopyright The Electric Controller and Manufacturing Company LLC 2007

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

Page 21: Ac Crane Control

September 2008 FRONTLINE

MANUAL MAGNETIC DISC

FRONTLINEreg AC CRANE CONTROL

MANUAL MAGNETIC DISCONNECT ELEMENTARY DIAGRA

AC CRANE CONTROL

21

CLASS

AGRAM

CLASS

FRONTLINE

22

CLASS

APPROXIMATE DIMESION

NEMASize

ContinuousAmpereRating A B C D

4 15018457

5127

8203

19483

5 30014356

3589

45114

28711

6 60018457

5127

8203

19483

8 135014356

5127

8203

28712

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMESIONS AND WEIGHTS

D E F G H J K L M

19483

30762

36914

2864727

315800

33838

3589

16229

36914

28711

33838

36914

267678

345876

36914

7178

72183

36914

19483

421067

421067

322818

4351105

451143

3589

10483

421067

28712

57838

441118

363922

345864

36914

70178

59137

741275

September 2008

M N

NetWeight

36914

15381

21096

36914

20508

235107

421067

20508

285130

741275

28508

300138

September 2008 FRONTLINE

MULTIMOTOR DRIVESTwo motors connected in parallel (duplex)control primary equipment and two sets of motor controlsecondary equipment are required in the controller Two sets ofpower resistors are also required

Four motors connected in parallel (quadruplex)necessary to double the duplex controller price given for twomotors in parallel One set of motor control primary and four setsof motor control secondary equipment are required Four sets opower resistors are required

CONTROLLERSNarrow width controllers ndash Most controllers ara narrow width construction These controllers when compared tostandard controllers are reduced width and increased height Fordetails see controller modifications and controller dimension

CONTROLLER MODIFICAT

Form Description

D6 Motor Isolating Circuit Breakers

B5 Brake Relay Reverse Plugging Controller Only

Y17 Arc Inhibitors Pendant Operated Controller

G95 Miniature Voltmeter Panel Mounted

G91 Miniature Ammeter Panel Mounted

E18 Narrow Width Panel

M24Substitute Type SZF Frequency Relay For ST1 StaticAcceleration Timers

H18Cabinet Space Heater Controlled By Interlock From MContactor

For Duplex Controllers For Duplex controllers multiply price by 2

1 Class2 Type3 Motor Horsepower4 Motor Primary Rated Voltage and Current

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATA

MULTIMOTOR DRIVESTwo motors connected in parallel (duplex) ndash One set of motorcontrol primary equipment and two sets of motor controlsecondary equipment are required in the controller Two sets of

Four motors connected in parallel (quadruplex) ndash It islex controller price given for two

motors in parallel One set of motor control primary and four setsof motor control secondary equipment are required Four sets of

CONTROLLERSMost controllers are also available in

a narrow width construction These controllers when compared tostandard controllers are reduced width and increased height For

see controller modifications and controller dimension

CONTROLLER MStandard controllers come equipped with the components listedSpecial features to be added to standard controllers are identifiedby Form number Most modifications are self

FORM D6 list motor isolation circuit breakers for use on duplexcontrollers For operation of the drive on one motor the motorline and connect breakers will disconnect one motor from the lineand connect the frequency relays to the power resistors of theother motor The brakes of the motor not in service are stillreleased electrically

FORM G95 lists a 3 frac12rdquo square miniature voltmeter to monitor onephase of motor primary voltage

FORM G9 lists a 3 frac12rdquo square miniature ammeter to monitor onephase of motor primary current Current transformersform are supplied Form G9 for motors above 10 HP20 HP 460 volts

CONTROLLER MODIFICATIONS

Brake Relay Reverse Plugging Controller Only

Arc Inhibitors Pendant Operated Controller

Substitute Type SZF Frequency Relay For ST1 Static

Cabinet Space Heater Controlled By Interlock From M

APPLICATION DATACLASS 6420 EDDYMAG

DYNAMIC MODEL AB-

MOTOR HPRATING

Brake Size

900 RMP Motors

Light DutyServices

SevereDutyServices

7 12 703

10 704

15 704

20 705

25 705

30 705

40 706

50 706

60 706

75 707

100 707

125 707

150 707200 708250 708300 708

ORDERING INFORMATION REQUIRED

5 Motor Secondary Rated Voltage andCurrent6 Controller Modifications Specify FormNumbers

7 Resistors Services Classification8 Master Switch Type and Form Number

AC CRANE CONTROL

23

CLASS

CLASS

CONTROLLER MODIFICATIONSStandard controllers come equipped with the components listedSpecial features to be added to standard controllers are identifiedby Form number Most modifications are self explanatory

list motor isolation circuit breakers for use on duplexcontrollers For operation of the drive on one motor the motorline and connect breakers will disconnect one motor from the lineand connect the frequency relays to the power resistors of the

motor The brakes of the motor not in service are still

lists a 3 frac12rdquo square miniature voltmeter to monitor one

lists a 3 frac12rdquo square miniature ammeter to monitor oneCurrent transformers with this

for motors above 10 HP 230 volt and

PPLICATION DATACLASS 6420 EDDYMAG HOIST

-FLOOR MOUNTED BRAKE

1200 RMP MotorsSevereDutyServices

Light DutyServices

SevereDutyServices

704 703 703

704 703 704

705 704 704

705 704 705

705 705 705

706 705 705

706 705 706

706 706 706

707 706 706

707 706 706

707 707 707

707 707 707

708 707 707708 707 708708 708 708--- 708 708

7 Resistors Services Classification8 Master Switch Type and Form Number

FRONTLINE

24

CLASS

CLASS

CRANE HOOK SPEED VS

CLASS 6421DYNAMIC LO

FIRST

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

O

FSY

NC

HR

ON

OU

SSP

EED

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

SY

NC

HR

ON

OU

SSP

PED

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATACRANE HOOK SPEED VS LOAD PERFORMANCE

CLASS 6420 EDDYMAGreg

CLASS 6421DYNAMIC LOWERING HOIST

FIRST

SECOND

THIRD

FOURTH

FIFTH

FIRST

SECOND

THIRD

FOURTH

FIFTH

40 60 80 100 120 140 160 180

LOAD PERFORMANCE IN OF SYNCHRONOUS SPEED

SECOND

THIRDFOURTH

FIFTH

FIRST

FIRST

SECOND amp THIRD

40 60 80 100 120 140 160 180

LOAD PERFORMANCE IN OF SYNCHRONOUS SPEED

September 2008

200

FIFTH

180 200

September 2008 FRONTLINE

CRANE HOOK SPEEDCLASS 6422 CONTRA

CLASS 6426

SECONDFIRST

FOURTH

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

O

FSY

NC

HR

ON

OU

SSP

EED

FIRST

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

SY

NC

HR

ON

OU

SSP

EED

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATACRANE HOOK SPEED VS LOAD PERFORMANCE

CLASS 6422 CONTRA-TORQUEreg

CLASS 6426 REVERSING HOIST CONTROL(With Mechanical Load Brake)

FIFTH

AUTOMATIC

FOURTH

THIRD

FIRST amp SECOND

SECOND

THIRD

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUS SPEED

SIXTH

SECOND

THIRD

FOURTH

FIFTH

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUSE SPEED

25

CLASS

CLASS

FIFTH

AUTOMATIC

FIRST amp SECOND

180 200

180 200

FRONTLINE

26

CLASS

AC CONTACTOR CONTROL

System AC Contactor Control

Crane Components

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switchradio controlReversing hoistsmechanical load brake gearboxAll other hoist stylesgearbox Best and critical positioning controlrequires E

ResistorsAcceleration resistor setSize based on HP amp duty cycle

Mo

tor

Perf

orm

an

ce

General

Velocity and acceleration is load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

More abrupt speed point

Slowdown

Travel Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

Hoist OFF point slowdown and braking withEddy-Current brakeDB circuitry

OFF Point

Travel No OFF point braking via control

Hoist OFF point braking by Eddybrake CONTRA

Reversing

Travel Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allowsoperation

Hoist Drive is stopped before each changein direction

Power ConsumptionPower dissipated in rotor resistors inspeed points

Component Wear

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Motors Encoders

Requires wound rotor motorNo encoder feedback

Motor blower not typically requiredoperation at reduced motor velocity as fulltorque is not available at zero speed

FRONTLINEreg AC CRANE CONTROL

AC CONTACTOR CONTROL vs DRIVES

AC Contactor Control Variable Frequency Drive

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switch and pendant orradio controlReversing hoists require worm gear ormechanical load brake gearbox

hoist styles require standardgearbox Best and critical positioning control

es Eddy-Current load brake

Inverter-duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limitpendant or radio controlOpen loop hoist controls require worm gear ormechanical load brake gearboxClosed loop hoist controlswith motor encoder feedback

Acceleration resistor set requiredSize based on HP amp duty cycle

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration is load dependantVelocity and acceleration are minimally (open(closed loop) load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

More abrupt speed point transitions Smooth speed point transitions

Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

OFF point slowdown and braking withurrent brake CONTRA-TORQUEreg or

DB circuitry

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

No OFF point braking via control

OFF point braking by Eddy-CurrentCONTRA-TORQUEreg or DB circuitry

OFF point Dynamic Braking (DB)deceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allows reacceleration after relayoperation

Drive is stopped before each changein direction

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speedachieved

Power dissipated in rotor resistors in lowspeed points

Uses less power at reduced velocity and duringacceleration

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Power contactors eliminatedMotor current switched by solidSpare drive recommended

Requires wound rotor motorNo encoder feedback required

Inverter-duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Motor blower not typically required foroperation at reduced motor velocity as fulltorque is not available at zero speed

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and highduty cycles

September 2008

Frequency Drive

duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limit switches master switch

require worm gear ormechanical load brake gearbox

require standard gearbox butwith motor encoder feedback

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration are minimally (open loop) or not(closed loop) load dependant

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

Smooth speed point transitions

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

OFF point Dynamic Braking (DB) with programmabledeceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speed

Uses less power at reduced velocity and during

Power contactors eliminatedMotor current switched by solid-state componentsSpare drive recommended

duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and high

September 2008 FRONTLINE

CLASS 5010 WB DRUM BRAKES

AIST rated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Hold drive stationary when motor is off

Available in 8rdquo to 30rdquo wheel diameters

Torque ratings 100 through 9000 ft-lbs

Corrosion resistant pins are standard on all brake sizes

Grease fittings are standard on 19rdquo 23rdquo and 30rdquo brake sizes

Available with optional self-adjuster

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

AIST rated and suitable for all crane classes

Used on bridge and trolley (horizontal travel) drives

Provide fixed holding torque for parking

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000

Stopping torque ratings up to 300 850 and 1500

Available for AC or DC control systems

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL(Contactor) CONTROLS

Hoist drive styles include Eddy-Current Brakeand Reversing Hoist controls

Reversing Plugging control for bridge and trolley (travel) drives

Meets NEMA Service Classification I

Available in NEMA contactor sizes 2 through 6

Numerous modifications available

Uses Class 8503 Type M Line-ARCreg contactors static timers

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

Meet OSHAamp NEC requirements for AC

Available in continuous ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by

Mechanical amp electrical interlocks prevent switch

CLASS 6170 YOUNGSTOWNreg

HOIST POWER LIMIT SWITCHES

Final safety limits for hoist upper travel

Interrupts motor power directly

Available in ratings up to 500HP at 230VDC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER

FRONTLINEreg AC CRANE CONTROL

ated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Corrosion resistant pins are standard on all brake sizes

andard on 19rdquo 23rdquo and 30rdquo brake sizes

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

ated and suitable for all crane classes

travel) drives

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000 ft-lbs respectively

Stopping torque ratings up to 300 850 and 1500 ft-lbs respectively

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL

Current Brake CONTRA-TORQUEreg AC Dynamic Lowering

bridge and trolley (travel) drives

Available in NEMA contactor sizes 2 through 6 through 300HP for single or multiple motors

contactors static timers and frequency relays for acceleration

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

crane disconnect switch

ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by the enclosure handle

Mechanical amp electrical interlocks prevent switch operation with handle in the OFF position

HOIST POWER LIMIT SWITCHES

to 500HP at 230VDC or up to 400HP at 460VAC and 550VAC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on-line at wwwECandMnet

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER MILL DUTY CONTROL COMPONENTS27

CLASS

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

FRONTLINE

28

CLASS

FRONTLINEreg AC CRANE CONTROL

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

copyCopyright The Electric Controller and Manufacturing Company LLCPrinted in the USA

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

September 2008

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

copyCopyright The Electric Controller and Manufacturing Company LLC 2007

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

Page 22: Ac Crane Control

FRONTLINE

22

CLASS

APPROXIMATE DIMESION

NEMASize

ContinuousAmpereRating A B C D

4 15018457

5127

8203

19483

5 30014356

3589

45114

28711

6 60018457

5127

8203

19483

8 135014356

5127

8203

28712

CLASS

FRONTLINEreg AC CRANE CONTROL

APPROXIMATE DIMESIONS AND WEIGHTS

D E F G H J K L M

19483

30762

36914

2864727

315800

33838

3589

16229

36914

28711

33838

36914

267678

345876

36914

7178

72183

36914

19483

421067

421067

322818

4351105

451143

3589

10483

421067

28712

57838

441118

363922

345864

36914

70178

59137

741275

September 2008

M N

NetWeight

36914

15381

21096

36914

20508

235107

421067

20508

285130

741275

28508

300138

September 2008 FRONTLINE

MULTIMOTOR DRIVESTwo motors connected in parallel (duplex)control primary equipment and two sets of motor controlsecondary equipment are required in the controller Two sets ofpower resistors are also required

Four motors connected in parallel (quadruplex)necessary to double the duplex controller price given for twomotors in parallel One set of motor control primary and four setsof motor control secondary equipment are required Four sets opower resistors are required

CONTROLLERSNarrow width controllers ndash Most controllers ara narrow width construction These controllers when compared tostandard controllers are reduced width and increased height Fordetails see controller modifications and controller dimension

CONTROLLER MODIFICAT

Form Description

D6 Motor Isolating Circuit Breakers

B5 Brake Relay Reverse Plugging Controller Only

Y17 Arc Inhibitors Pendant Operated Controller

G95 Miniature Voltmeter Panel Mounted

G91 Miniature Ammeter Panel Mounted

E18 Narrow Width Panel

M24Substitute Type SZF Frequency Relay For ST1 StaticAcceleration Timers

H18Cabinet Space Heater Controlled By Interlock From MContactor

For Duplex Controllers For Duplex controllers multiply price by 2

1 Class2 Type3 Motor Horsepower4 Motor Primary Rated Voltage and Current

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATA

MULTIMOTOR DRIVESTwo motors connected in parallel (duplex) ndash One set of motorcontrol primary equipment and two sets of motor controlsecondary equipment are required in the controller Two sets of

Four motors connected in parallel (quadruplex) ndash It islex controller price given for two

motors in parallel One set of motor control primary and four setsof motor control secondary equipment are required Four sets of

CONTROLLERSMost controllers are also available in

a narrow width construction These controllers when compared tostandard controllers are reduced width and increased height For

see controller modifications and controller dimension

CONTROLLER MStandard controllers come equipped with the components listedSpecial features to be added to standard controllers are identifiedby Form number Most modifications are self

FORM D6 list motor isolation circuit breakers for use on duplexcontrollers For operation of the drive on one motor the motorline and connect breakers will disconnect one motor from the lineand connect the frequency relays to the power resistors of theother motor The brakes of the motor not in service are stillreleased electrically

FORM G95 lists a 3 frac12rdquo square miniature voltmeter to monitor onephase of motor primary voltage

FORM G9 lists a 3 frac12rdquo square miniature ammeter to monitor onephase of motor primary current Current transformersform are supplied Form G9 for motors above 10 HP20 HP 460 volts

CONTROLLER MODIFICATIONS

Brake Relay Reverse Plugging Controller Only

Arc Inhibitors Pendant Operated Controller

Substitute Type SZF Frequency Relay For ST1 Static

Cabinet Space Heater Controlled By Interlock From M

APPLICATION DATACLASS 6420 EDDYMAG

DYNAMIC MODEL AB-

MOTOR HPRATING

Brake Size

900 RMP Motors

Light DutyServices

SevereDutyServices

7 12 703

10 704

15 704

20 705

25 705

30 705

40 706

50 706

60 706

75 707

100 707

125 707

150 707200 708250 708300 708

ORDERING INFORMATION REQUIRED

5 Motor Secondary Rated Voltage andCurrent6 Controller Modifications Specify FormNumbers

7 Resistors Services Classification8 Master Switch Type and Form Number

AC CRANE CONTROL

23

CLASS

CLASS

CONTROLLER MODIFICATIONSStandard controllers come equipped with the components listedSpecial features to be added to standard controllers are identifiedby Form number Most modifications are self explanatory

list motor isolation circuit breakers for use on duplexcontrollers For operation of the drive on one motor the motorline and connect breakers will disconnect one motor from the lineand connect the frequency relays to the power resistors of the

motor The brakes of the motor not in service are still

lists a 3 frac12rdquo square miniature voltmeter to monitor one

lists a 3 frac12rdquo square miniature ammeter to monitor oneCurrent transformers with this

for motors above 10 HP 230 volt and

PPLICATION DATACLASS 6420 EDDYMAG HOIST

-FLOOR MOUNTED BRAKE

1200 RMP MotorsSevereDutyServices

Light DutyServices

SevereDutyServices

704 703 703

704 703 704

705 704 704

705 704 705

705 705 705

706 705 705

706 705 706

706 706 706

707 706 706

707 706 706

707 707 707

707 707 707

708 707 707708 707 708708 708 708--- 708 708

7 Resistors Services Classification8 Master Switch Type and Form Number

FRONTLINE

24

CLASS

CLASS

CRANE HOOK SPEED VS

CLASS 6421DYNAMIC LO

FIRST

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

O

FSY

NC

HR

ON

OU

SSP

EED

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

SY

NC

HR

ON

OU

SSP

PED

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATACRANE HOOK SPEED VS LOAD PERFORMANCE

CLASS 6420 EDDYMAGreg

CLASS 6421DYNAMIC LOWERING HOIST

FIRST

SECOND

THIRD

FOURTH

FIFTH

FIRST

SECOND

THIRD

FOURTH

FIFTH

40 60 80 100 120 140 160 180

LOAD PERFORMANCE IN OF SYNCHRONOUS SPEED

SECOND

THIRDFOURTH

FIFTH

FIRST

FIRST

SECOND amp THIRD

40 60 80 100 120 140 160 180

LOAD PERFORMANCE IN OF SYNCHRONOUS SPEED

September 2008

200

FIFTH

180 200

September 2008 FRONTLINE

CRANE HOOK SPEEDCLASS 6422 CONTRA

CLASS 6426

SECONDFIRST

FOURTH

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

O

FSY

NC

HR

ON

OU

SSP

EED

FIRST

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

SY

NC

HR

ON

OU

SSP

EED

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATACRANE HOOK SPEED VS LOAD PERFORMANCE

CLASS 6422 CONTRA-TORQUEreg

CLASS 6426 REVERSING HOIST CONTROL(With Mechanical Load Brake)

FIFTH

AUTOMATIC

FOURTH

THIRD

FIRST amp SECOND

SECOND

THIRD

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUS SPEED

SIXTH

SECOND

THIRD

FOURTH

FIFTH

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUSE SPEED

25

CLASS

CLASS

FIFTH

AUTOMATIC

FIRST amp SECOND

180 200

180 200

FRONTLINE

26

CLASS

AC CONTACTOR CONTROL

System AC Contactor Control

Crane Components

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switchradio controlReversing hoistsmechanical load brake gearboxAll other hoist stylesgearbox Best and critical positioning controlrequires E

ResistorsAcceleration resistor setSize based on HP amp duty cycle

Mo

tor

Perf

orm

an

ce

General

Velocity and acceleration is load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

More abrupt speed point

Slowdown

Travel Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

Hoist OFF point slowdown and braking withEddy-Current brakeDB circuitry

OFF Point

Travel No OFF point braking via control

Hoist OFF point braking by Eddybrake CONTRA

Reversing

Travel Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allowsoperation

Hoist Drive is stopped before each changein direction

Power ConsumptionPower dissipated in rotor resistors inspeed points

Component Wear

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Motors Encoders

Requires wound rotor motorNo encoder feedback

Motor blower not typically requiredoperation at reduced motor velocity as fulltorque is not available at zero speed

FRONTLINEreg AC CRANE CONTROL

AC CONTACTOR CONTROL vs DRIVES

AC Contactor Control Variable Frequency Drive

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switch and pendant orradio controlReversing hoists require worm gear ormechanical load brake gearbox

hoist styles require standardgearbox Best and critical positioning control

es Eddy-Current load brake

Inverter-duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limitpendant or radio controlOpen loop hoist controls require worm gear ormechanical load brake gearboxClosed loop hoist controlswith motor encoder feedback

Acceleration resistor set requiredSize based on HP amp duty cycle

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration is load dependantVelocity and acceleration are minimally (open(closed loop) load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

More abrupt speed point transitions Smooth speed point transitions

Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

OFF point slowdown and braking withurrent brake CONTRA-TORQUEreg or

DB circuitry

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

No OFF point braking via control

OFF point braking by Eddy-CurrentCONTRA-TORQUEreg or DB circuitry

OFF point Dynamic Braking (DB)deceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allows reacceleration after relayoperation

Drive is stopped before each changein direction

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speedachieved

Power dissipated in rotor resistors in lowspeed points

Uses less power at reduced velocity and duringacceleration

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Power contactors eliminatedMotor current switched by solidSpare drive recommended

Requires wound rotor motorNo encoder feedback required

Inverter-duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Motor blower not typically required foroperation at reduced motor velocity as fulltorque is not available at zero speed

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and highduty cycles

September 2008

Frequency Drive

duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limit switches master switch

require worm gear ormechanical load brake gearbox

require standard gearbox butwith motor encoder feedback

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration are minimally (open loop) or not(closed loop) load dependant

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

Smooth speed point transitions

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

OFF point Dynamic Braking (DB) with programmabledeceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speed

Uses less power at reduced velocity and during

Power contactors eliminatedMotor current switched by solid-state componentsSpare drive recommended

duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and high

September 2008 FRONTLINE

CLASS 5010 WB DRUM BRAKES

AIST rated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Hold drive stationary when motor is off

Available in 8rdquo to 30rdquo wheel diameters

Torque ratings 100 through 9000 ft-lbs

Corrosion resistant pins are standard on all brake sizes

Grease fittings are standard on 19rdquo 23rdquo and 30rdquo brake sizes

Available with optional self-adjuster

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

AIST rated and suitable for all crane classes

Used on bridge and trolley (horizontal travel) drives

Provide fixed holding torque for parking

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000

Stopping torque ratings up to 300 850 and 1500

Available for AC or DC control systems

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL(Contactor) CONTROLS

Hoist drive styles include Eddy-Current Brakeand Reversing Hoist controls

Reversing Plugging control for bridge and trolley (travel) drives

Meets NEMA Service Classification I

Available in NEMA contactor sizes 2 through 6

Numerous modifications available

Uses Class 8503 Type M Line-ARCreg contactors static timers

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

Meet OSHAamp NEC requirements for AC

Available in continuous ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by

Mechanical amp electrical interlocks prevent switch

CLASS 6170 YOUNGSTOWNreg

HOIST POWER LIMIT SWITCHES

Final safety limits for hoist upper travel

Interrupts motor power directly

Available in ratings up to 500HP at 230VDC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER

FRONTLINEreg AC CRANE CONTROL

ated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Corrosion resistant pins are standard on all brake sizes

andard on 19rdquo 23rdquo and 30rdquo brake sizes

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

ated and suitable for all crane classes

travel) drives

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000 ft-lbs respectively

Stopping torque ratings up to 300 850 and 1500 ft-lbs respectively

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL

Current Brake CONTRA-TORQUEreg AC Dynamic Lowering

bridge and trolley (travel) drives

Available in NEMA contactor sizes 2 through 6 through 300HP for single or multiple motors

contactors static timers and frequency relays for acceleration

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

crane disconnect switch

ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by the enclosure handle

Mechanical amp electrical interlocks prevent switch operation with handle in the OFF position

HOIST POWER LIMIT SWITCHES

to 500HP at 230VDC or up to 400HP at 460VAC and 550VAC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on-line at wwwECandMnet

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER MILL DUTY CONTROL COMPONENTS27

CLASS

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

FRONTLINE

28

CLASS

FRONTLINEreg AC CRANE CONTROL

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

copyCopyright The Electric Controller and Manufacturing Company LLCPrinted in the USA

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

September 2008

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

copyCopyright The Electric Controller and Manufacturing Company LLC 2007

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

Page 23: Ac Crane Control

September 2008 FRONTLINE

MULTIMOTOR DRIVESTwo motors connected in parallel (duplex)control primary equipment and two sets of motor controlsecondary equipment are required in the controller Two sets ofpower resistors are also required

Four motors connected in parallel (quadruplex)necessary to double the duplex controller price given for twomotors in parallel One set of motor control primary and four setsof motor control secondary equipment are required Four sets opower resistors are required

CONTROLLERSNarrow width controllers ndash Most controllers ara narrow width construction These controllers when compared tostandard controllers are reduced width and increased height Fordetails see controller modifications and controller dimension

CONTROLLER MODIFICAT

Form Description

D6 Motor Isolating Circuit Breakers

B5 Brake Relay Reverse Plugging Controller Only

Y17 Arc Inhibitors Pendant Operated Controller

G95 Miniature Voltmeter Panel Mounted

G91 Miniature Ammeter Panel Mounted

E18 Narrow Width Panel

M24Substitute Type SZF Frequency Relay For ST1 StaticAcceleration Timers

H18Cabinet Space Heater Controlled By Interlock From MContactor

For Duplex Controllers For Duplex controllers multiply price by 2

1 Class2 Type3 Motor Horsepower4 Motor Primary Rated Voltage and Current

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATA

MULTIMOTOR DRIVESTwo motors connected in parallel (duplex) ndash One set of motorcontrol primary equipment and two sets of motor controlsecondary equipment are required in the controller Two sets of

Four motors connected in parallel (quadruplex) ndash It islex controller price given for two

motors in parallel One set of motor control primary and four setsof motor control secondary equipment are required Four sets of

CONTROLLERSMost controllers are also available in

a narrow width construction These controllers when compared tostandard controllers are reduced width and increased height For

see controller modifications and controller dimension

CONTROLLER MStandard controllers come equipped with the components listedSpecial features to be added to standard controllers are identifiedby Form number Most modifications are self

FORM D6 list motor isolation circuit breakers for use on duplexcontrollers For operation of the drive on one motor the motorline and connect breakers will disconnect one motor from the lineand connect the frequency relays to the power resistors of theother motor The brakes of the motor not in service are stillreleased electrically

FORM G95 lists a 3 frac12rdquo square miniature voltmeter to monitor onephase of motor primary voltage

FORM G9 lists a 3 frac12rdquo square miniature ammeter to monitor onephase of motor primary current Current transformersform are supplied Form G9 for motors above 10 HP20 HP 460 volts

CONTROLLER MODIFICATIONS

Brake Relay Reverse Plugging Controller Only

Arc Inhibitors Pendant Operated Controller

Substitute Type SZF Frequency Relay For ST1 Static

Cabinet Space Heater Controlled By Interlock From M

APPLICATION DATACLASS 6420 EDDYMAG

DYNAMIC MODEL AB-

MOTOR HPRATING

Brake Size

900 RMP Motors

Light DutyServices

SevereDutyServices

7 12 703

10 704

15 704

20 705

25 705

30 705

40 706

50 706

60 706

75 707

100 707

125 707

150 707200 708250 708300 708

ORDERING INFORMATION REQUIRED

5 Motor Secondary Rated Voltage andCurrent6 Controller Modifications Specify FormNumbers

7 Resistors Services Classification8 Master Switch Type and Form Number

AC CRANE CONTROL

23

CLASS

CLASS

CONTROLLER MODIFICATIONSStandard controllers come equipped with the components listedSpecial features to be added to standard controllers are identifiedby Form number Most modifications are self explanatory

list motor isolation circuit breakers for use on duplexcontrollers For operation of the drive on one motor the motorline and connect breakers will disconnect one motor from the lineand connect the frequency relays to the power resistors of the

motor The brakes of the motor not in service are still

lists a 3 frac12rdquo square miniature voltmeter to monitor one

lists a 3 frac12rdquo square miniature ammeter to monitor oneCurrent transformers with this

for motors above 10 HP 230 volt and

PPLICATION DATACLASS 6420 EDDYMAG HOIST

-FLOOR MOUNTED BRAKE

1200 RMP MotorsSevereDutyServices

Light DutyServices

SevereDutyServices

704 703 703

704 703 704

705 704 704

705 704 705

705 705 705

706 705 705

706 705 706

706 706 706

707 706 706

707 706 706

707 707 707

707 707 707

708 707 707708 707 708708 708 708--- 708 708

7 Resistors Services Classification8 Master Switch Type and Form Number

FRONTLINE

24

CLASS

CLASS

CRANE HOOK SPEED VS

CLASS 6421DYNAMIC LO

FIRST

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

O

FSY

NC

HR

ON

OU

SSP

EED

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

SY

NC

HR

ON

OU

SSP

PED

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATACRANE HOOK SPEED VS LOAD PERFORMANCE

CLASS 6420 EDDYMAGreg

CLASS 6421DYNAMIC LOWERING HOIST

FIRST

SECOND

THIRD

FOURTH

FIFTH

FIRST

SECOND

THIRD

FOURTH

FIFTH

40 60 80 100 120 140 160 180

LOAD PERFORMANCE IN OF SYNCHRONOUS SPEED

SECOND

THIRDFOURTH

FIFTH

FIRST

FIRST

SECOND amp THIRD

40 60 80 100 120 140 160 180

LOAD PERFORMANCE IN OF SYNCHRONOUS SPEED

September 2008

200

FIFTH

180 200

September 2008 FRONTLINE

CRANE HOOK SPEEDCLASS 6422 CONTRA

CLASS 6426

SECONDFIRST

FOURTH

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

O

FSY

NC

HR

ON

OU

SSP

EED

FIRST

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

SY

NC

HR

ON

OU

SSP

EED

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATACRANE HOOK SPEED VS LOAD PERFORMANCE

CLASS 6422 CONTRA-TORQUEreg

CLASS 6426 REVERSING HOIST CONTROL(With Mechanical Load Brake)

FIFTH

AUTOMATIC

FOURTH

THIRD

FIRST amp SECOND

SECOND

THIRD

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUS SPEED

SIXTH

SECOND

THIRD

FOURTH

FIFTH

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUSE SPEED

25

CLASS

CLASS

FIFTH

AUTOMATIC

FIRST amp SECOND

180 200

180 200

FRONTLINE

26

CLASS

AC CONTACTOR CONTROL

System AC Contactor Control

Crane Components

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switchradio controlReversing hoistsmechanical load brake gearboxAll other hoist stylesgearbox Best and critical positioning controlrequires E

ResistorsAcceleration resistor setSize based on HP amp duty cycle

Mo

tor

Perf

orm

an

ce

General

Velocity and acceleration is load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

More abrupt speed point

Slowdown

Travel Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

Hoist OFF point slowdown and braking withEddy-Current brakeDB circuitry

OFF Point

Travel No OFF point braking via control

Hoist OFF point braking by Eddybrake CONTRA

Reversing

Travel Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allowsoperation

Hoist Drive is stopped before each changein direction

Power ConsumptionPower dissipated in rotor resistors inspeed points

Component Wear

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Motors Encoders

Requires wound rotor motorNo encoder feedback

Motor blower not typically requiredoperation at reduced motor velocity as fulltorque is not available at zero speed

FRONTLINEreg AC CRANE CONTROL

AC CONTACTOR CONTROL vs DRIVES

AC Contactor Control Variable Frequency Drive

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switch and pendant orradio controlReversing hoists require worm gear ormechanical load brake gearbox

hoist styles require standardgearbox Best and critical positioning control

es Eddy-Current load brake

Inverter-duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limitpendant or radio controlOpen loop hoist controls require worm gear ormechanical load brake gearboxClosed loop hoist controlswith motor encoder feedback

Acceleration resistor set requiredSize based on HP amp duty cycle

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration is load dependantVelocity and acceleration are minimally (open(closed loop) load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

More abrupt speed point transitions Smooth speed point transitions

Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

OFF point slowdown and braking withurrent brake CONTRA-TORQUEreg or

DB circuitry

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

No OFF point braking via control

OFF point braking by Eddy-CurrentCONTRA-TORQUEreg or DB circuitry

OFF point Dynamic Braking (DB)deceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allows reacceleration after relayoperation

Drive is stopped before each changein direction

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speedachieved

Power dissipated in rotor resistors in lowspeed points

Uses less power at reduced velocity and duringacceleration

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Power contactors eliminatedMotor current switched by solidSpare drive recommended

Requires wound rotor motorNo encoder feedback required

Inverter-duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Motor blower not typically required foroperation at reduced motor velocity as fulltorque is not available at zero speed

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and highduty cycles

September 2008

Frequency Drive

duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limit switches master switch

require worm gear ormechanical load brake gearbox

require standard gearbox butwith motor encoder feedback

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration are minimally (open loop) or not(closed loop) load dependant

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

Smooth speed point transitions

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

OFF point Dynamic Braking (DB) with programmabledeceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speed

Uses less power at reduced velocity and during

Power contactors eliminatedMotor current switched by solid-state componentsSpare drive recommended

duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and high

September 2008 FRONTLINE

CLASS 5010 WB DRUM BRAKES

AIST rated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Hold drive stationary when motor is off

Available in 8rdquo to 30rdquo wheel diameters

Torque ratings 100 through 9000 ft-lbs

Corrosion resistant pins are standard on all brake sizes

Grease fittings are standard on 19rdquo 23rdquo and 30rdquo brake sizes

Available with optional self-adjuster

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

AIST rated and suitable for all crane classes

Used on bridge and trolley (horizontal travel) drives

Provide fixed holding torque for parking

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000

Stopping torque ratings up to 300 850 and 1500

Available for AC or DC control systems

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL(Contactor) CONTROLS

Hoist drive styles include Eddy-Current Brakeand Reversing Hoist controls

Reversing Plugging control for bridge and trolley (travel) drives

Meets NEMA Service Classification I

Available in NEMA contactor sizes 2 through 6

Numerous modifications available

Uses Class 8503 Type M Line-ARCreg contactors static timers

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

Meet OSHAamp NEC requirements for AC

Available in continuous ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by

Mechanical amp electrical interlocks prevent switch

CLASS 6170 YOUNGSTOWNreg

HOIST POWER LIMIT SWITCHES

Final safety limits for hoist upper travel

Interrupts motor power directly

Available in ratings up to 500HP at 230VDC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER

FRONTLINEreg AC CRANE CONTROL

ated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Corrosion resistant pins are standard on all brake sizes

andard on 19rdquo 23rdquo and 30rdquo brake sizes

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

ated and suitable for all crane classes

travel) drives

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000 ft-lbs respectively

Stopping torque ratings up to 300 850 and 1500 ft-lbs respectively

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL

Current Brake CONTRA-TORQUEreg AC Dynamic Lowering

bridge and trolley (travel) drives

Available in NEMA contactor sizes 2 through 6 through 300HP for single or multiple motors

contactors static timers and frequency relays for acceleration

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

crane disconnect switch

ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by the enclosure handle

Mechanical amp electrical interlocks prevent switch operation with handle in the OFF position

HOIST POWER LIMIT SWITCHES

to 500HP at 230VDC or up to 400HP at 460VAC and 550VAC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on-line at wwwECandMnet

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER MILL DUTY CONTROL COMPONENTS27

CLASS

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

FRONTLINE

28

CLASS

FRONTLINEreg AC CRANE CONTROL

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

copyCopyright The Electric Controller and Manufacturing Company LLCPrinted in the USA

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

September 2008

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

copyCopyright The Electric Controller and Manufacturing Company LLC 2007

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

Page 24: Ac Crane Control

FRONTLINE

24

CLASS

CLASS

CRANE HOOK SPEED VS

CLASS 6421DYNAMIC LO

FIRST

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

O

FSY

NC

HR

ON

OU

SSP

EED

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

SY

NC

HR

ON

OU

SSP

PED

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATACRANE HOOK SPEED VS LOAD PERFORMANCE

CLASS 6420 EDDYMAGreg

CLASS 6421DYNAMIC LOWERING HOIST

FIRST

SECOND

THIRD

FOURTH

FIFTH

FIRST

SECOND

THIRD

FOURTH

FIFTH

40 60 80 100 120 140 160 180

LOAD PERFORMANCE IN OF SYNCHRONOUS SPEED

SECOND

THIRDFOURTH

FIFTH

FIRST

FIRST

SECOND amp THIRD

40 60 80 100 120 140 160 180

LOAD PERFORMANCE IN OF SYNCHRONOUS SPEED

September 2008

200

FIFTH

180 200

September 2008 FRONTLINE

CRANE HOOK SPEEDCLASS 6422 CONTRA

CLASS 6426

SECONDFIRST

FOURTH

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

O

FSY

NC

HR

ON

OU

SSP

EED

FIRST

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

SY

NC

HR

ON

OU

SSP

EED

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATACRANE HOOK SPEED VS LOAD PERFORMANCE

CLASS 6422 CONTRA-TORQUEreg

CLASS 6426 REVERSING HOIST CONTROL(With Mechanical Load Brake)

FIFTH

AUTOMATIC

FOURTH

THIRD

FIRST amp SECOND

SECOND

THIRD

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUS SPEED

SIXTH

SECOND

THIRD

FOURTH

FIFTH

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUSE SPEED

25

CLASS

CLASS

FIFTH

AUTOMATIC

FIRST amp SECOND

180 200

180 200

FRONTLINE

26

CLASS

AC CONTACTOR CONTROL

System AC Contactor Control

Crane Components

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switchradio controlReversing hoistsmechanical load brake gearboxAll other hoist stylesgearbox Best and critical positioning controlrequires E

ResistorsAcceleration resistor setSize based on HP amp duty cycle

Mo

tor

Perf

orm

an

ce

General

Velocity and acceleration is load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

More abrupt speed point

Slowdown

Travel Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

Hoist OFF point slowdown and braking withEddy-Current brakeDB circuitry

OFF Point

Travel No OFF point braking via control

Hoist OFF point braking by Eddybrake CONTRA

Reversing

Travel Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allowsoperation

Hoist Drive is stopped before each changein direction

Power ConsumptionPower dissipated in rotor resistors inspeed points

Component Wear

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Motors Encoders

Requires wound rotor motorNo encoder feedback

Motor blower not typically requiredoperation at reduced motor velocity as fulltorque is not available at zero speed

FRONTLINEreg AC CRANE CONTROL

AC CONTACTOR CONTROL vs DRIVES

AC Contactor Control Variable Frequency Drive

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switch and pendant orradio controlReversing hoists require worm gear ormechanical load brake gearbox

hoist styles require standardgearbox Best and critical positioning control

es Eddy-Current load brake

Inverter-duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limitpendant or radio controlOpen loop hoist controls require worm gear ormechanical load brake gearboxClosed loop hoist controlswith motor encoder feedback

Acceleration resistor set requiredSize based on HP amp duty cycle

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration is load dependantVelocity and acceleration are minimally (open(closed loop) load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

More abrupt speed point transitions Smooth speed point transitions

Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

OFF point slowdown and braking withurrent brake CONTRA-TORQUEreg or

DB circuitry

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

No OFF point braking via control

OFF point braking by Eddy-CurrentCONTRA-TORQUEreg or DB circuitry

OFF point Dynamic Braking (DB)deceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allows reacceleration after relayoperation

Drive is stopped before each changein direction

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speedachieved

Power dissipated in rotor resistors in lowspeed points

Uses less power at reduced velocity and duringacceleration

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Power contactors eliminatedMotor current switched by solidSpare drive recommended

Requires wound rotor motorNo encoder feedback required

Inverter-duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Motor blower not typically required foroperation at reduced motor velocity as fulltorque is not available at zero speed

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and highduty cycles

September 2008

Frequency Drive

duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limit switches master switch

require worm gear ormechanical load brake gearbox

require standard gearbox butwith motor encoder feedback

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration are minimally (open loop) or not(closed loop) load dependant

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

Smooth speed point transitions

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

OFF point Dynamic Braking (DB) with programmabledeceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speed

Uses less power at reduced velocity and during

Power contactors eliminatedMotor current switched by solid-state componentsSpare drive recommended

duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and high

September 2008 FRONTLINE

CLASS 5010 WB DRUM BRAKES

AIST rated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Hold drive stationary when motor is off

Available in 8rdquo to 30rdquo wheel diameters

Torque ratings 100 through 9000 ft-lbs

Corrosion resistant pins are standard on all brake sizes

Grease fittings are standard on 19rdquo 23rdquo and 30rdquo brake sizes

Available with optional self-adjuster

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

AIST rated and suitable for all crane classes

Used on bridge and trolley (horizontal travel) drives

Provide fixed holding torque for parking

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000

Stopping torque ratings up to 300 850 and 1500

Available for AC or DC control systems

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL(Contactor) CONTROLS

Hoist drive styles include Eddy-Current Brakeand Reversing Hoist controls

Reversing Plugging control for bridge and trolley (travel) drives

Meets NEMA Service Classification I

Available in NEMA contactor sizes 2 through 6

Numerous modifications available

Uses Class 8503 Type M Line-ARCreg contactors static timers

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

Meet OSHAamp NEC requirements for AC

Available in continuous ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by

Mechanical amp electrical interlocks prevent switch

CLASS 6170 YOUNGSTOWNreg

HOIST POWER LIMIT SWITCHES

Final safety limits for hoist upper travel

Interrupts motor power directly

Available in ratings up to 500HP at 230VDC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER

FRONTLINEreg AC CRANE CONTROL

ated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Corrosion resistant pins are standard on all brake sizes

andard on 19rdquo 23rdquo and 30rdquo brake sizes

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

ated and suitable for all crane classes

travel) drives

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000 ft-lbs respectively

Stopping torque ratings up to 300 850 and 1500 ft-lbs respectively

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL

Current Brake CONTRA-TORQUEreg AC Dynamic Lowering

bridge and trolley (travel) drives

Available in NEMA contactor sizes 2 through 6 through 300HP for single or multiple motors

contactors static timers and frequency relays for acceleration

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

crane disconnect switch

ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by the enclosure handle

Mechanical amp electrical interlocks prevent switch operation with handle in the OFF position

HOIST POWER LIMIT SWITCHES

to 500HP at 230VDC or up to 400HP at 460VAC and 550VAC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on-line at wwwECandMnet

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER MILL DUTY CONTROL COMPONENTS27

CLASS

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

FRONTLINE

28

CLASS

FRONTLINEreg AC CRANE CONTROL

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

copyCopyright The Electric Controller and Manufacturing Company LLCPrinted in the USA

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

September 2008

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

copyCopyright The Electric Controller and Manufacturing Company LLC 2007

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

Page 25: Ac Crane Control

September 2008 FRONTLINE

CRANE HOOK SPEEDCLASS 6422 CONTRA

CLASS 6426

SECONDFIRST

FOURTH

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

O

FSY

NC

HR

ON

OU

SSP

EED

FIRST

0

10

20

30

40

50

60

70

80

90

100

0 20 40

HO

OK

SPEE

DIN

SY

NC

HR

ON

OU

SSP

EED

FRONTLINEreg AC CRANE CONTROL

APPLICATION DATACRANE HOOK SPEED VS LOAD PERFORMANCE

CLASS 6422 CONTRA-TORQUEreg

CLASS 6426 REVERSING HOIST CONTROL(With Mechanical Load Brake)

FIFTH

AUTOMATIC

FOURTH

THIRD

FIRST amp SECOND

SECOND

THIRD

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUS SPEED

SIXTH

SECOND

THIRD

FOURTH

FIFTH

60 80 100 120 140 160 180

LOAD SPEED IN OF SYNCHRONOUSE SPEED

25

CLASS

CLASS

FIFTH

AUTOMATIC

FIRST amp SECOND

180 200

180 200

FRONTLINE

26

CLASS

AC CONTACTOR CONTROL

System AC Contactor Control

Crane Components

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switchradio controlReversing hoistsmechanical load brake gearboxAll other hoist stylesgearbox Best and critical positioning controlrequires E

ResistorsAcceleration resistor setSize based on HP amp duty cycle

Mo

tor

Perf

orm

an

ce

General

Velocity and acceleration is load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

More abrupt speed point

Slowdown

Travel Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

Hoist OFF point slowdown and braking withEddy-Current brakeDB circuitry

OFF Point

Travel No OFF point braking via control

Hoist OFF point braking by Eddybrake CONTRA

Reversing

Travel Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allowsoperation

Hoist Drive is stopped before each changein direction

Power ConsumptionPower dissipated in rotor resistors inspeed points

Component Wear

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Motors Encoders

Requires wound rotor motorNo encoder feedback

Motor blower not typically requiredoperation at reduced motor velocity as fulltorque is not available at zero speed

FRONTLINEreg AC CRANE CONTROL

AC CONTACTOR CONTROL vs DRIVES

AC Contactor Control Variable Frequency Drive

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switch and pendant orradio controlReversing hoists require worm gear ormechanical load brake gearbox

hoist styles require standardgearbox Best and critical positioning control

es Eddy-Current load brake

Inverter-duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limitpendant or radio controlOpen loop hoist controls require worm gear ormechanical load brake gearboxClosed loop hoist controlswith motor encoder feedback

Acceleration resistor set requiredSize based on HP amp duty cycle

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration is load dependantVelocity and acceleration are minimally (open(closed loop) load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

More abrupt speed point transitions Smooth speed point transitions

Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

OFF point slowdown and braking withurrent brake CONTRA-TORQUEreg or

DB circuitry

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

No OFF point braking via control

OFF point braking by Eddy-CurrentCONTRA-TORQUEreg or DB circuitry

OFF point Dynamic Braking (DB)deceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allows reacceleration after relayoperation

Drive is stopped before each changein direction

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speedachieved

Power dissipated in rotor resistors in lowspeed points

Uses less power at reduced velocity and duringacceleration

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Power contactors eliminatedMotor current switched by solidSpare drive recommended

Requires wound rotor motorNo encoder feedback required

Inverter-duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Motor blower not typically required foroperation at reduced motor velocity as fulltorque is not available at zero speed

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and highduty cycles

September 2008

Frequency Drive

duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limit switches master switch

require worm gear ormechanical load brake gearbox

require standard gearbox butwith motor encoder feedback

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration are minimally (open loop) or not(closed loop) load dependant

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

Smooth speed point transitions

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

OFF point Dynamic Braking (DB) with programmabledeceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speed

Uses less power at reduced velocity and during

Power contactors eliminatedMotor current switched by solid-state componentsSpare drive recommended

duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and high

September 2008 FRONTLINE

CLASS 5010 WB DRUM BRAKES

AIST rated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Hold drive stationary when motor is off

Available in 8rdquo to 30rdquo wheel diameters

Torque ratings 100 through 9000 ft-lbs

Corrosion resistant pins are standard on all brake sizes

Grease fittings are standard on 19rdquo 23rdquo and 30rdquo brake sizes

Available with optional self-adjuster

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

AIST rated and suitable for all crane classes

Used on bridge and trolley (horizontal travel) drives

Provide fixed holding torque for parking

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000

Stopping torque ratings up to 300 850 and 1500

Available for AC or DC control systems

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL(Contactor) CONTROLS

Hoist drive styles include Eddy-Current Brakeand Reversing Hoist controls

Reversing Plugging control for bridge and trolley (travel) drives

Meets NEMA Service Classification I

Available in NEMA contactor sizes 2 through 6

Numerous modifications available

Uses Class 8503 Type M Line-ARCreg contactors static timers

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

Meet OSHAamp NEC requirements for AC

Available in continuous ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by

Mechanical amp electrical interlocks prevent switch

CLASS 6170 YOUNGSTOWNreg

HOIST POWER LIMIT SWITCHES

Final safety limits for hoist upper travel

Interrupts motor power directly

Available in ratings up to 500HP at 230VDC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER

FRONTLINEreg AC CRANE CONTROL

ated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Corrosion resistant pins are standard on all brake sizes

andard on 19rdquo 23rdquo and 30rdquo brake sizes

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

ated and suitable for all crane classes

travel) drives

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000 ft-lbs respectively

Stopping torque ratings up to 300 850 and 1500 ft-lbs respectively

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL

Current Brake CONTRA-TORQUEreg AC Dynamic Lowering

bridge and trolley (travel) drives

Available in NEMA contactor sizes 2 through 6 through 300HP for single or multiple motors

contactors static timers and frequency relays for acceleration

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

crane disconnect switch

ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by the enclosure handle

Mechanical amp electrical interlocks prevent switch operation with handle in the OFF position

HOIST POWER LIMIT SWITCHES

to 500HP at 230VDC or up to 400HP at 460VAC and 550VAC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on-line at wwwECandMnet

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER MILL DUTY CONTROL COMPONENTS27

CLASS

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

FRONTLINE

28

CLASS

FRONTLINEreg AC CRANE CONTROL

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

copyCopyright The Electric Controller and Manufacturing Company LLCPrinted in the USA

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

September 2008

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

copyCopyright The Electric Controller and Manufacturing Company LLC 2007

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

Page 26: Ac Crane Control

FRONTLINE

26

CLASS

AC CONTACTOR CONTROL

System AC Contactor Control

Crane Components

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switchradio controlReversing hoistsmechanical load brake gearboxAll other hoist stylesgearbox Best and critical positioning controlrequires E

ResistorsAcceleration resistor setSize based on HP amp duty cycle

Mo

tor

Perf

orm

an

ce

General

Velocity and acceleration is load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

More abrupt speed point

Slowdown

Travel Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

Hoist OFF point slowdown and braking withEddy-Current brakeDB circuitry

OFF Point

Travel No OFF point braking via control

Hoist OFF point braking by Eddybrake CONTRA

Reversing

Travel Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allowsoperation

Hoist Drive is stopped before each changein direction

Power ConsumptionPower dissipated in rotor resistors inspeed points

Component Wear

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Motors Encoders

Requires wound rotor motorNo encoder feedback

Motor blower not typically requiredoperation at reduced motor velocity as fulltorque is not available at zero speed

FRONTLINEreg AC CRANE CONTROL

AC CONTACTOR CONTROL vs DRIVES

AC Contactor Control Variable Frequency Drive

Wound rotor motor rectifier operatedbrake(s) control circuit and or power limitswitches master switch and pendant orradio controlReversing hoists require worm gear ormechanical load brake gearbox

hoist styles require standardgearbox Best and critical positioning control

es Eddy-Current load brake

Inverter-duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limitpendant or radio controlOpen loop hoist controls require worm gear ormechanical load brake gearboxClosed loop hoist controlswith motor encoder feedback

Acceleration resistor set requiredSize based on HP amp duty cycle

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration is load dependantVelocity and acceleration are minimally (open(closed loop) load dependant

Resistor tap and wiring changes are requiredto adjust speeds in the field

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

More abrupt speed point transitions Smooth speed point transitions

Slowdown via Reverse Pluggingdeceleration relay controlled with resistorsto limit current and torque

OFF point slowdown and braking withurrent brake CONTRA-TORQUEreg or

DB circuitry

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

No OFF point braking via control

OFF point braking by Eddy-CurrentCONTRA-TORQUEreg or DB circuitry

OFF point Dynamic Braking (DB)deceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Reversing plugging decelerationrelay controlled with resistors to limit currentand torque Allows reacceleration after relayoperation

Drive is stopped before each changein direction

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speedachieved

Power dissipated in rotor resistors in lowspeed points

Uses less power at reduced velocity and duringacceleration

Acceleration contactors make amp break rotorcurrent at each speed changeDirectional contactors make amp break statorcurrent when starting amp reversingContactors tips coils etc require periodicinspection and replacement

Power contactors eliminatedMotor current switched by solidSpare drive recommended

Requires wound rotor motorNo encoder feedback required

Inverter-duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Motor blower not typically required foroperation at reduced motor velocity as fulltorque is not available at zero speed

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and highduty cycles

September 2008

Frequency Drive

duty squirrel cage wound rotor or standard dutysquirrel cage motor rectifier operated brake(s) controlcircuit and or power limit switches master switch

require worm gear ormechanical load brake gearbox

require standard gearbox butwith motor encoder feedback

Dynamic braking resistor set only sized based oninverter size fewer resistor banks required

Velocity and acceleration are minimally (open loop) or not(closed loop) load dependant

Velocity amp acceleration are programmed for each speedpoint field adjustable through keypad or PC

Smooth speed point transitions

Slowdown via DB resistors on DC bus withprogrammable deceleration ramp

OFF point Dynamic Braking (DB) with programmabledeceleration ramp between all points with load floatingto resume motion without waiting for brake to release

Slowdown with DB (see Slowdown amp OFF)Reversing and reacceleration occur after zero speed

Uses less power at reduced velocity and during

Power contactors eliminatedMotor current switched by solid-state componentsSpare drive recommended

duty squirrel cage motor preferred Load filterrequired for use with wound rotor or standard dutysquirrel cage motors AIST Hoists (closed loop) usemotor encoder feedback for precise handling

Full torque (full current) at slow and zero velocity ispossible As a result motor blower may be requiredwhen operating at reduced velocity with full load and high

September 2008 FRONTLINE

CLASS 5010 WB DRUM BRAKES

AIST rated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Hold drive stationary when motor is off

Available in 8rdquo to 30rdquo wheel diameters

Torque ratings 100 through 9000 ft-lbs

Corrosion resistant pins are standard on all brake sizes

Grease fittings are standard on 19rdquo 23rdquo and 30rdquo brake sizes

Available with optional self-adjuster

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

AIST rated and suitable for all crane classes

Used on bridge and trolley (horizontal travel) drives

Provide fixed holding torque for parking

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000

Stopping torque ratings up to 300 850 and 1500

Available for AC or DC control systems

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL(Contactor) CONTROLS

Hoist drive styles include Eddy-Current Brakeand Reversing Hoist controls

Reversing Plugging control for bridge and trolley (travel) drives

Meets NEMA Service Classification I

Available in NEMA contactor sizes 2 through 6

Numerous modifications available

Uses Class 8503 Type M Line-ARCreg contactors static timers

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

Meet OSHAamp NEC requirements for AC

Available in continuous ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by

Mechanical amp electrical interlocks prevent switch

CLASS 6170 YOUNGSTOWNreg

HOIST POWER LIMIT SWITCHES

Final safety limits for hoist upper travel

Interrupts motor power directly

Available in ratings up to 500HP at 230VDC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER

FRONTLINEreg AC CRANE CONTROL

ated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Corrosion resistant pins are standard on all brake sizes

andard on 19rdquo 23rdquo and 30rdquo brake sizes

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

ated and suitable for all crane classes

travel) drives

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000 ft-lbs respectively

Stopping torque ratings up to 300 850 and 1500 ft-lbs respectively

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL

Current Brake CONTRA-TORQUEreg AC Dynamic Lowering

bridge and trolley (travel) drives

Available in NEMA contactor sizes 2 through 6 through 300HP for single or multiple motors

contactors static timers and frequency relays for acceleration

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

crane disconnect switch

ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by the enclosure handle

Mechanical amp electrical interlocks prevent switch operation with handle in the OFF position

HOIST POWER LIMIT SWITCHES

to 500HP at 230VDC or up to 400HP at 460VAC and 550VAC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on-line at wwwECandMnet

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER MILL DUTY CONTROL COMPONENTS27

CLASS

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

FRONTLINE

28

CLASS

FRONTLINEreg AC CRANE CONTROL

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

copyCopyright The Electric Controller and Manufacturing Company LLCPrinted in the USA

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

September 2008

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

copyCopyright The Electric Controller and Manufacturing Company LLC 2007

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

Page 27: Ac Crane Control

September 2008 FRONTLINE

CLASS 5010 WB DRUM BRAKES

AIST rated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Hold drive stationary when motor is off

Available in 8rdquo to 30rdquo wheel diameters

Torque ratings 100 through 9000 ft-lbs

Corrosion resistant pins are standard on all brake sizes

Grease fittings are standard on 19rdquo 23rdquo and 30rdquo brake sizes

Available with optional self-adjuster

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

AIST rated and suitable for all crane classes

Used on bridge and trolley (horizontal travel) drives

Provide fixed holding torque for parking

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000

Stopping torque ratings up to 300 850 and 1500

Available for AC or DC control systems

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL(Contactor) CONTROLS

Hoist drive styles include Eddy-Current Brakeand Reversing Hoist controls

Reversing Plugging control for bridge and trolley (travel) drives

Meets NEMA Service Classification I

Available in NEMA contactor sizes 2 through 6

Numerous modifications available

Uses Class 8503 Type M Line-ARCreg contactors static timers

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

Meet OSHAamp NEC requirements for AC

Available in continuous ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by

Mechanical amp electrical interlocks prevent switch

CLASS 6170 YOUNGSTOWNreg

HOIST POWER LIMIT SWITCHES

Final safety limits for hoist upper travel

Interrupts motor power directly

Available in ratings up to 500HP at 230VDC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER

FRONTLINEreg AC CRANE CONTROL

ated and suitable for all crane classes

Spring set electrically released DC drum type

Available for AC operation with brake rectifier controller

Corrosion resistant pins are standard on all brake sizes

andard on 19rdquo 23rdquo and 30rdquo brake sizes

CLASS 5060 ADJUSTABLE TORQUE DRUM BRAKES

ated and suitable for all crane classes

travel) drives

Provide electrically controlled adjustable torque for stopping

Available in 10rdquo 13rdquo and 16rdquo wheel diameters

Parking torque ratings up to 200 550 and 1000 ft-lbs respectively

Stopping torque ratings up to 300 850 and 1500 ft-lbs respectively

CLASS 6420 to CLASS 6426 AC CONSTANT POTENTIAL

Current Brake CONTRA-TORQUEreg AC Dynamic Lowering

bridge and trolley (travel) drives

Available in NEMA contactor sizes 2 through 6 through 300HP for single or multiple motors

contactors static timers and frequency relays for acceleration

Industrial duty contactor versions available to meet NEMA Service Classification II

CLASS 6440 AC MANUAL MAGNETIC DISCONNECT SWITCHES

crane disconnect switch

ratings of 150 to 1350 Amperes

Operated remotely by pushbutton or by the enclosure handle

Mechanical amp electrical interlocks prevent switch operation with handle in the OFF position

HOIST POWER LIMIT SWITCHES

to 500HP at 230VDC or up to 400HP at 460VAC and 550VAC

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

Crane Control Selection GuideFor more details please see our crane control catalog on-line at wwwECandMnet

Please visit our website for additional details onDC MILL DUTY CONTACTOR CONTROL DIGITAL DC DRIVES

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

AND OTHER MILL DUTY CONTROL COMPONENTS27

CLASS

Available auxiliary contacts set to operate prior to main contacts for variable frequency hoist applications

DC DISCONNECT SWITCHES DC MAGNET CONTROL DC REDUCED VOLTAGE STARTERSMASTER SWITCHES MILL DUTY RELAYS OVERLOAD RELAYS AC CONTACTORS

FRONTLINE

28

CLASS

FRONTLINEreg AC CRANE CONTROL

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

copyCopyright The Electric Controller and Manufacturing Company LLCPrinted in the USA

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

September 2008

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

copyCopyright The Electric Controller and Manufacturing Company LLC 2007

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

Page 28: Ac Crane Control

FRONTLINE

28

CLASS

FRONTLINEreg AC CRANE CONTROL

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

copyCopyright The Electric Controller and Manufacturing Company LLCPrinted in the USA

SEE SEPARATE PRICE SHEET OR CONTACTECampM FOR PRICE AND LEAD-TIME ATWWWECandMNET OR CALL 803-874

September 2008

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922

copyCopyright The Electric Controller and Manufacturing Company LLC 2007

SEE SEPARATE PRICE SHEET OR CONTACTTIME AT

874-3922