Typical circuit diagrams
9.1 Introduction
60
SIMOCODE pro - Fail-Safe Digital Modules
Manual, 11/2017, NEB631679702000/RS-AA/002
Generating circuit diagrams
The following example of a reversing starter illustrates the basic principle behind the typical
circuit diagrams.
The complete circuit diagram is comprised of the following components:
Depending on the SIMOCODE pro control function and the maximum SIL / PL, the main
circuit contains the motor contactors and – if required – an incoming supply contactor as an
additional tripping option.
For the arrangement of the motor contactors depending on the control function, please refer
to the typical circuit diagrams in the system manual for SIMOCODE pro, chapter E.
Sensor circuit (only in conjunction with DM-F Local)
Select a typical circuit diagram for the sensor circuit according to your requirements.
Actuator circuit with feedback circuit
To select a typical circuit diagram for the actuator circuit, proceed as follows:
1. Select the desired SIMOCODE pro control function.
2. Select a typical circuit diagram with or without an incoming supply contactor, depending
on the maximum SIL / PL. Example: Reversing starter with safety-related tripping via an
emergency stop control device, maximum level SIL 3 or PL e (see circuit diagram).
The following warning applies to both circuit examples (see below):
Loss of safety function possible.
Use only the specified fuses.
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