Siemens SINAMICS Series Function Manual page 49

Interconnection in groups
When using a single actuating element for multiple cabinet units, the following terminals
have to be used on terminal strip -X41:
● -X41:2: Interconnection to the next cabinet unit, terminal -X41:1
● -X41:4: Interconnection to the next cabinet unit, terminal -X41:3
● -X41:6: Interconnection to the next cabinet unit, terminal -X41:5
● -X41:8: Interconnection to the next cabinet unit, terminal -X41:7
● -X41:9: Interconnection to the next cabinet unit, terminal -X41:6
● Connection of the optional checkback signal to terminal -X41:9
Wiring
The control cables should be permanently routed (e.g. cable duct, retained using cable ties).
Signal cables and encoder cables should be installed separated from one another.
The shields of the control cables should be grounded through the largest possible surface
area immediately after they enter the control cabinet.
Outside the control cabinet, the cables must be routed in such a way that they are safe to
walk on (e.g. as specified in IEC 60204-1).
Safety Integrated
Function Manual, 07/2016, A5E03264275A
5.2 Control of "STO" and "SS1" via terminal module for option K82
Controlling the safety functions
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