Siemens SINAMICS G130 Engineering Manual page 405

SINAMICS S120 Cabinet Modules
Engineering Information
Connector pin assignments of customer terminal block -X55 on air-cooled SINAMICS S120 Cabinet Modules
The digital inputs and digital inputs / outputs of the CU320-2 Control Unit are available at terminals -X122 and -X132
provided that the Cabinet Module is equipped with option K90 (CU320-2 DP Control Unit) or option K95 (CU320-2 PN
Control Unit).
The terminals for the STO / SS1 safety function (X41:1/2) are connected as standard. When option K82 is installed,
they are connected to the relay combination of this option. When option K82 is not installed, voltage supply links are
connected to prevent triggering of a pulse disable when option K82 is missing.
Terminals -X46 are assigned to the Safe Brake Control (SBC) function.
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