Siemens CU240B-2 - Connecting the Safety-Related Input

Appendix
A.6 Connecting the safety-related input
Converter with the CU240B-2 and CU240E-2 Control Units
Operating Instructions, 01/2016, FW V4.7 SP6, A5E34259001B AC
499
A.6
Connecting the safety-related input
The following examples show the interconnection of the safety-related input accordance with
PL d to EN 13849-1 and SIL2 according to IEC61508. You can find additional examples and
information in the "Safety Integrated" function manual.
The inverter allows a PM-switching output as well as a PP-switching output to be connected.
Image A-9 Connecting a PM-switching and a PP-switching output
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 in one control cabinet.
Image A-10 Connecting a sensor, e.g. Emergency Stop mushroom pushbutton or limit switch