Siemens SINAMICS G120 Function Manual page 185

2. case: Response of the drive for SS1 of the extended functions
You have selected the extended functions via onboard terminals.
Figure 6-19
The inverter does not set the error bit of the safety functions (= internal event).
After the tolerance time has expired, the inverter signals the discrepancy (message C01770
or C30770) but does not interrupt the braking operation for the motor.
Safety Integrated - SINAMICS G110M, G120, G120C, G120D and SIMATIC ET 200pro FC-2
Function Manual, 04/2014, FW V4.7, A5E34261271B AA
Inverter response for discrepancy of the input signal for SS1 (as example: SS1 with
braking ramp monitoring)
Operation
6.5 Safe Stop 1 (SS1)
185