3Rw55 Soft Starter In Standard (Inline) Circuit With Soft Starting, Soft Stopping And The Additional Function "Creep Speed - Siemens SIRIUS 3RW55 Equipment Manual

Q11
Q21
Q91
Q92
M1
PE
A.3.4 3RW55 soft starter in standard (inline) circuit with soft starting, soft stopping
and the additional function "Creep speed"
Note
Do not use the "Creep speed" function in continuous operation The motor can heat up
impermissibly in continuous operation at Creep speed.
Requirements
• 3RW55 soft starter
• Parameterization required
You will find further information in chapter Creep speed (Page 172).
Procedure
1. Set the function of the digital inputs:
– DI1 Motor CW with PS1
– DI2: Motor CCW with PS1
– DI3: Creep speed
– DI4: Reset (factory setting)
2. Set the creep speed parameters in parameter set 1.
SIRIUS 3RW55 and 3RW55 Failsafe Soft Starters
Equipment Manual, 02/2022, A5E35630887002A/RS-AF/006
3RW55 soft starter
PLC
Braking contactor
Braking contactor
Motor
Protective conductor
Example circuits
A.3 Special applications
315