Siemens SINAMICS G120 Function Manual page 200

Operation
6.6 Safely Limited Speed (SLS)
If you switch off the motor using the OFF2 command, then the inverter immediately safely
switches off the motor torque using the STO safety function.
Figure 6-28
200
OFF2 command when the SLS safety function is active
Safety Integrated - SINAMICS G110M, G120, G120C, G120D and SIMATIC ET 200pro FC-2
Function Manual, 04/2014, FW V4.7, A5E34261271B AA