Connecting A Fail-Safe Digital Input - Siemens SINAMICS G120 Operating Instructions Manual
Low voltage inverters
built-in units with cu250s-2 control units and
encoder evaluation
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- List manual (1256 pages) ,
- Manual (732 pages) ,
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A.5.2
Connecting a fail-safe digital input
The following examples show the interconnection of a fail-safe digital input corresponding to
PL d according to EN 13849-1 and SIL2 according to IEC61508. You can find additional
examples and information in the "Safety Integrated" function manual.
Special requirements placed on EMC-compliant installation
Use shielded signal cables. Connect the shield at both conductor ends.
In order to connect two or more inverter terminals, use the shortest possible jumpers directly
at the terminals themselves.
The inverter allows a PM-switching output as well as a PP-switching output to be connected.
Figure A-8
The following examples comply with PL d according to EN 13849-1 and SIL2 according to IEC
61508 for the case that all components are installed within one control cabinet.
Figure A-9
Converter with the CU250S-2 Control Units
Operating Instructions, 04/2018, FW V4.7 SP10, A5E31759476B AG
Connecting a PM-switching and a PP-switching output
Connecting a sensor, e.g. Emergency Stop mushroom pushbutton or limit switch
Appendix
A.5 Application Examples
511
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