Typical circuit diagrams
9.4 DM-F PROFIsafe, actuator circuits
82
SIMOCODE pro - Fail-Safe Digital Modules
Manual, 11/2017, NEB631679702000/RS-AA/002
DM-F PROFIsafe, actuator circuits
9.4.1
Connection examples for DM-F PROFIsafe, actuator circuit
Overview of DM-F PROFIsafe, actuator circuit
This chapter contains examples showing the structure of the actuator circuit of the failsafe
DM-F PROFIsafe digital module for various safety requirements (with or without an incoming
supply contactor) and control functions (e.g. direct starter, reversing starter, star-delta
starter).
The examples also illustrate the basic structure of the feedback circuit for monitoring the
circuit state of the contactors.
Actuator circuit with feedback circuit, control function = direct starter
Figure 9-21 Circuit diagram of an actuator circuit with feedback circuit, control function = direct
starter, with incoming supply contactor, maximum safety integrity level
SIL 3 / performance level PL e
Q1: Incoming supply contactor
Q2: Motor contactor
Note
Protective circuit required to suppress surge voltages!
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