Siemens SINAMICS G120 Function Manual page 64

Installing
4.3 Activation via F-DI
Components in separate control cabinets
If the components are located in separate control cabinets, the wiring between the safety
relay and safety inputs in the inverter must be installed such that it is protected against cross
and short-circuits.
Transfer the two signals for activating a safety function via wires in separate lines. In the
example, the signals for terminal 5 and 7 are transferred via the first wire. The signals for
terminal 6 and 8 are then transferred via the second wire.
Figure 4-15
64
Interconnecting the inverter and safety relay in separate control cabinets
Safety Integrated - SINAMICS G110M, G120, G120C, G120D and SIMATIC ET 200pro FC-2
Function Manual, 04/2014, FW V4.7, A5E34261271B AA