Siemens SIMOCODE pro

Typical circuit diagrams
9.1 Introduction
62
SIMOCODE pro - Fail-Safe Digital Modules
Manual, 11/2017, NEB631679702000/RS-AA/002
(1)
Actuator circuit
Local operation
Protective circuit required to
suppress surge voltages!
Q1 = Incoming supply contactor
S1 = CW rotation
Q2 = Motor contactor CW
S2 = Off
Q3 = Motor contactor CCW
S3 = CCW rotation
Figure 9-2 Typical circuit diagram of a reversing starter with safety-related tripping via
PROFIBUS / PROFIsafe or PROFINET / PROFIsafe, maximum level SIL 3 or PL e