Typical circuit diagrams
9.4 DM-F PROFIsafe, actuator circuits
86
SIMOCODE pro - Fail-Safe Digital Modules
Manual, 11/2017, NEB631679702000/RS-AA/002
Actuator circuit with feedback circuit, control function = star-delta starter
Figure 9-25 Circuit diagram of an actuator circuit with feedback circuit, control function = star-delta
starter, with incoming supply contactor, maximum safety integrity level
SIL 3 / performance level PL e
Q1: Incoming supply contactor
Q2: Line contactor
Q3: Delta contactor
Q4: Star contactor
Note
Protective circuit required to suppress surge voltages!
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