3rw Schematic

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SIRIUS 3RW44 manualGWA 4NEB 535 2195-02 DS 06 9-1

Circuit Examples 9Chapter Subject Page

9.1 Connection Examples for Main and Control Circuits 9-2

9.1.1 3RW44 in a Standard Circuit with Control via Keys 9-2

9.1.2 3RW44 in a Standard Circuit with Line Contactor and Control via PLC 9-3

9.1.3 3RW44 in a Standard Circuit and DC Braking Stopping Function for

Device Types 3RW44 22 to 3RW44 25

9-4

9.1.4 3RW44 in a Standard Circuit and DC Braking Stopping Function for

Device Types 3RW44 26 to 3RW44 47

9-5

9.1.5 3RW44 in an Inside Delta Circuit 9-6

9.1.6 3RW44 in a Standard Circuit and Control as per Contactor 9-7

9.1.7 3RW44 in a Standard Circuit with Soft Start/Stop and Additional Slow

Speed Function in both Directions of Rotation with one Parameter Set

9-8

9.1.8 Activation via PROFIBUS with Switching to Manual Operation Local (e.

g. at the Control Cabinet)

9-9

9.1.9 3RW44 in a Standard Circuit and Reversing Operation via MainContactors with one Parameter Set without Soft Stop 9-10

9.1.10 Reversing Operation with Soft Stop 9-11

9.1.11 Soft Starter for Pole-Changing Motor with Separate Windings and 2

Parameter Sets

9-12

9.1.12 Soft Starters for Dahlander Motors with 2 Parameter Sets 9-13

9.1.13 Parallel Starting of 3 Motors 9-14

9.1.14 Soft Starter for Serial Starting with 3 Parameter Sets 9-16

9.1.15 Soft Starter for Activation of a Motor with a Magnetic Fixing Brake 9-18

9.1.16 Emergency Stop Monitoring according to EN 954-1 Category 4 with

Safety Relay 3TK2823 and 3RW44

9-19

9.1.17 Soft Starter with Direct Switching (DOL) as Emergency Start 9-21

9.1.18 Soft Starter with Star-Delta Starter as Emergency Start (3RW44 in a

Standard Circuit)

9-22

9.1.19 Soft Starter and Frequency Converter on one Motor 9-23

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SIRIUS 3RW44 manual9-2 GWA 4NEB 535 2195-02 DS 06

9.1 Connection Examples for Main and Control Circuits

9.1.1 3RW44 in a Standard Circuit with Control via Keys

Alternative branch layout in a standard circuit

1) For permissible main and control voltage values, refer to Technical Data, pages 10-12 to 10-16.

Main circuit Control circuit

Option 1a:

Standard circuit with circuit breaker and SITOR fuse(pure semiconductor protection)

Main circuit

Option 1b: Option 1c:

Standard circuit with all-range fuse(line and semiconductor protection) Standard circuit with line and SITOR fuse (puresemiconductor protection)

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9.1.2 3RW44 in a Standard Circuit with Line Contactor and Control via PLC


2) Caution: risk of restart!The start command (e.g. via PLC) must be reset when a group fault occurs, since an automatic restart is

executed when a start command is pending after the reset command is issued. This particularly applies to

motor protection tripping.

For safety reasons, we recommend integrating the group error output (terminals 95 and 96) into the control.


Standard circuit with optional main contactor Activation of an optional main contactor and activation via PLC

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9.1.3 3RW44 in a Standard Circuit and DC Braking3) Stopping Function for Device Types

3RW44 22 to 3RW44 25


2)

2) Caution: risk of restart!

The start command (e.g. by the PLC) must be reset before a reset command is issued, as an automatic

restart is executed when a start command is pending after the reset command is issued. This particularly

applies to motor protection tripping. For safety reasons, we recommend integrating the group error output

(terminals 95 and 96) into the control.

3) If the "Combined braking" stopping function is selected, no braking contactor is required.

If the "DC braking" function is selected, a braking contactor must be additionally used.

For types, refer to the "Branch component layout (standard circuit)" table on page 10-21.The "DC braking" function is recommended for applications with larger centrifugal masses ( J load > J motor ).

Output 2 must be set to "DC braking contactor".


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9.1.4 3RW44 in a Standard Circuit and DC Braking3) Stopping Function for Device Types 3RW44 26

to 3RW44 66

1) For permissible main and control voltage values, refer to Technical Data, pages 10-12 to 10-16.2)

2) Caution: risk of restart!

The start command (e.g. by the PLC) must be reset before a reset command is issued, since an automaticrestart is executed when a start command is pending after the reset command is issued. This particularly

applies to motor protection tripping. For safety reasons, we recommend integrating the group error output


3) If the "Combined braking" stopping function is selected, no braking contactor is required.

If the "DC braking" function is selected, a braking contactor must be additionally used. For types, refer to

the "Branch component layout (standard circuit)" table on page 10-21.The "DC braking" function is recommended for applications with larger centrifugal masses ( J load > J motor ).

Output 2 must be set to "DC braking contactor".

4) K4 auxiliary relay, e.g.:

LZX:RT4A4T30 (230 V AC rated control supply voltage),

LZX:RT4A4S15 (115 V AC rated control supply voltage).


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9.1.5 3RW44 in an Inside Delta Circuit

Reversed direction of rotation in an inside delta circuit

Main circuit Option 1a: Control circuit Option 1: Activation via PLC

Main circuit Option 1b:

Notice Observe the wiring suggestions for the inside delta circuit on the main

circuit page. Faulty connection may cause breakdowns.

1) For permissible main and control voltage values, refer to Technical Data,pages 10-12 to 10-16.

2) Caution: risk of restart!The start command (e.g. by the PLC) must be reset before a reset

command is issued, as an automatic restart is executed when a start

command is pending after the reset command is issued. This

particularly applies to motor protection tripping.

For safety reasons, we recommend integrating the group error output


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9.1.6 3RW44 in a Standard Circuit and Control as per Contactor

Note

With this circuit type, the motor start may be delayed by up to 5 s after the start command, due to the

internal run times of the soft starter. Coasting down is the only possible stopping mode.

Notice

After the control supply voltage has been switched off and before restarting, the

device must be allowed to cool down for at least 30 s, as this influences the

effectiveness of the inherent protection of the soft starter.

This type of circuit is not recommended for higher switching frequencies as the

integrated fan cannot idle after the soft starter has been switched off, thus

reducing the switching frequency specified in the technical data.


Control circuit Main circuit

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Us

t

>30 sON

OFF

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9.1.7 3RW44 in a Standard Circuit with Soft Start/Stop and Additional Slow Speed Function in both

Directions of Rotation with one Parameter Set


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N o t e : p a r a m e t e r i z a t i

o n

S e t t h e c o n t r o l i n p u t f u n c t i o n s t o :

I N 1 : M o t o r r i g h t P S 1

I N 2 : M o t o r l e f t P S 1

I N 3 : S l o w - s p e e d m o d e

I N 4 : T r i p / r e s e t ( f a c t o r y d e f a u l t )

T h e s l o w - s p e e d p a r a m

e t e r s i n P a r a m e t e r S e t 1 m u s t b e s e t . M

o t o r r i g h t m e a n s r o t a t i o n i n l i n e p h a s e d

i r e c t i o n , m o t o r l e f t m e a n s r o t a t i o n a g a i n

s t t h e l i n e

p h a s e d i r e c t i o n .

N o t i c e

T h e s l o w - s p e e d f u n c t i o n i s n o t s u i t a b l e f o r c o n t i n u o u s o p e r a t i o n . T h e m o t o r h e a t i n g c a n b e c o m e u n r e l i a b l e i n c o n t i n u o u s o p e r a t i o n a t s l o w s p e

e d .

C a u t i o n - r i s k o f r e s t a r t :

T h e s t a r t c o m m a n d m

u s t b e r e s e t b e f o r e a r e s e t c o m m a n d i s i s s u e d , a s a n a u t o m a t i c r e s t a r t i s e x e c u t

e d w h e n a s t a r t c o m m a n d i s p e n d i n g a f t e r t h e r e s e t

c o m m a n d i s i s s u e d . T

h i s e s p e c i a l l y a p p l i e s t o m o t o r p r o t e c t i o n t r i p p i n g .

K 1 , K 2 , K 3 = r e l a y s f o

r c o n t a c t m u l t i p l i c a t i o n , e . g . f o r 2 3 0 V A C

o p e r a t i o n : 3 R S 1 8 0 0 - 1 B P 0 0

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9.1.8 Activation via PROFIBUS with Switching to Manual Operation Local

(e. g. at the Control Cabinet)


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9.1.9 3RW44 in a Standard Circuit and Reversing Operation via Main Contactors with one

Parameter Set without Soft Stop


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N o t i c e

T h e " C o a s t i n

g d o w n " s t o p p i n g m o d e m u s t b e

s e t o n t h e 3 R W 4 4 .

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9.1.10Reversing Operation with Soft Stop


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9.1.11 Soft Starter for Pole-Changing Motor with Separate Windings and

2 Parameter Sets


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N o t i c e

T h e " C o a s t i n g d

o w n " s t o p p i n g m o d e m u s t b e s e t o n t h e 3 R W 4 4 .

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9.1.12Soft Starters for Dahlander Motors with 2 Parameter Sets


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N o t i c e

T h e " C o a s t i n g d o w n " s t o p p i n g m o d e m u s t b e s e t

o n t h e 3 R W 4 4 .

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9.1.13Parallel Starting of 3 Motors


Notice

The rated output of the 3RW44 to be configured must be at least as high as the sum of the motor rated

outputs.

The loads should have similar mass moments of inertia and torque curves.

Control circuit

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Parallel Starting of 3 Motors


Notice

The rated output of the 3RW44 to be configured must be at least as high as the sum of the motor rated

outputs.

The loads should have similar mass moments of inertia and torque curves.

Main circuit

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9.1.14Soft Starter for Serial Starting with 3 Parameter Sets


N o t i c e

T h e " C o a s t i n g d o w n " s t o p p i n g m o d e m u s t b e s e t o n t h e 3 R W 4 4 .

N o t e

I n t h e c a s e o f i n c r e a s e d o p e r a t i n g s e q u e n c e s , t h e 3 R W 4 4 s h o u l d b e d i m e n s i o n e d a t l e a s t o n e c a p a c i t y

l e v e l h i g h e r t h a

n t h e h i g h e s t c o n n e c t e d m o t o r o

u t p u t .

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Soft starter for serial starting with 3 parameter sets (deactivate soft stop and 3RW44 motor

protection)


Note

In the case of increased operating sequences, the 3RW44 should be dimensioned at least one capacity level

higher than the highest connected motor output.

Notice

The "Coasting down" stopping mode must be set on the 3RW44.

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9.1.15Soft Starter for Activation of a Motor with a Magnetic Fixing Brake


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9.1.16Emergency Stop Monitoring according to EN 954-1 Category 4 with Safety Relay 3TK2823

and 3RW44


N o t i c e

I f a s t o p p i n g f u n c t i o n h a s b e e n s e t ( e x c e p t i o n : " C o a s t i n g d o w n " ) , a f a u l t m e s s a g e m a y o c c u r o n t h e s o f t s t a r t e r

w h e n t h e E m e r g e n c

y O f f c i r c u i t i s a c t i v a t e d ( e . g . " L o

s s o f p h a s e L 1 / L 2 / L 3 " o r " N o l i n

e v o l t a g e " ) .

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Emergency stop monitoring according to EN 954-1 category 4 with safety relay 3TK2823 and 3RW44


Notice

If a stopping function has been set (exception: "Coasting down"), a fault message may occur on the soft

starter when the Emergency Off circuit is activated (e.g."Loss of phase L1/L2/L3" or "No line voltage").

Main circuit

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9.1.17Soft Starter with Direct Switching (DOL) as Emergency Start


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9.1.18Soft Starter with Star-Delta Starter as Emergency Start (3RW44 in a Standard Circuit)


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9.1.19Soft Starter and Frequency Converter on one Motor


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3rw Schematic

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