Wiring
AQ I+
AQ U+
AQ-
>
1/L1
2/T1
3/L2
5/L3
A2
4/T2
6/T3
A1
T1
T2
L+
M
DI 1
DI 2
DI 3
DI 4
U1
V1
W1
PE
1
2
13
NO
14
1
2
3
4
5
6
A1
A2
1
2
U
1/L1
2/T1
3/L2
4/T2
5/L3
6/T3
1
2
3
4
5
6
1/L1
2/T1
3/L2
4/T2
5/L3
6/T3
13
14
13
14
x1
x2
23
NO
24
A1
A2
11
12
-Q11
-M1
3~
M
-F1
-Q11
-F1
-Q21
-Q22
-Q1
-Q21
-S1
-S2
-P1
-Q11
-Q22
-Q1
PE
PE
L1 L2 L3
L/+
L/-
L/-
L/+
F1
Fuse
S1
Pushbutton: Switch: Motor On / Off
S2
Pushbutton: Reset
Q1
External overload relay
Q11
3RW5 soft starter
Q21
External bypass contactor
Q22
Main contactor
P1
Indicator light
M1
Motor
PE
Protective conductor
A.3.13
EMERGENCY STOP shutdown to SIL 1 or PL c with a 3SK1 safety relay without
the 3RW55 Failsafe soft starter
The 3RW55 soft starter has no effect or influence on the safety function of the application. For
this reason, it is neither positively nor negatively considered in the safety application, and also
does not have to be included in the calculation for proof according to the standards.
Example circuits
A.3 Special applications
SIRIUS 3RW55 and 3RW55 Failsafe Soft Starters
Equipment Manual, 02/2022, A5E35630887002A/RS-AF/006
335