Siemens SIMOCODE pro

Typical circuit diagrams
9.1 Introduction
SIMOCODE pro - Fail-Safe Digital Modules
Manual, 11/2017, NEB631679702000/RS-AA/002
61
(1)
Sensor circuit
Actuator circuit
Local operation
Protective circuit
required to suppress
surge voltages!
S10 Emergency stop
Q1 = Incoming supply contactor
S1 = CW rotation
S11 Start
Q2 = Motor contactor CW
S2 = Off
Q3 = Motor contactor CCW
S3 = CCW rotation
Figure 9-1 Typical circuit diagram of a reversing starter with safety-related tripping via an
emergency stop control device, maximum level SIL 3 or PL e