Typical circuit diagrams
9.4 DM-F PROFIsafe, actuator circuits
SIMOCODE pro - Fail-Safe Digital Modules
Manual, 11/2017, NEB631679702000/RS-AA/002
89
Figure 9-28 Circuit diagram of an actuator circuit with feedback circuit, control function = Dahlander
starter, without incoming supply contactor, maximum safety integrity level
SIL 1 / performance level PL c
Q2: Li
ne contactor, slow
Q3: Line contactor, fast
Q4: Star contactor
Note
Protective circuit required to suppress surge voltages!