Siemens Sinamics G120 Function Manual page 82

Installing
4.4 Controlling via a fail-safe digital input
SINAMICS G120D requires a PP-switching fail-safe output.
1)
Figure 4-29
82
The wiring of the ET 200SP shows as example, the supply of a new potential group when using a
bright base unit.
You may operate the inverter and the ET 200SP with different 24‑V supplies - as well as with the
same 24‑V supply.
Connecting PP-switching ET 200SP modules using a SINAMICS G120D as example
Safety Integrated - SINAMICS G110M, G120, G120C, G120D and SIMATIC ET 200pro FC-2
Function Manual, 01/2017, FW V4.7 SP6, A5E34261271B AD