Disturbance Characteristics Of Safe Torque Off, Sto - Siemens SINAMICS G120 Function Manual

Alarms, faults and system messages
6.2 Disturbance characteristics of the safety functions
● If alarm C01711 is the cause of the STOP F, the reaction of the inverter depends on the
6.2.4

Disturbance characteristics of Safe Torque Off, STO

General fault response
If a fault occurs when STO is active, the motor is torque free.
Figure 6-2
Depending on whether you have enabled STO via "Basic Safety" or "Extended Safety", the
inverter signals the status of STO via r9773.1 or r9722.0.
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active safety function:
– If no safety function is active, the alarm stops and does not affect motor operation.
– As soon as you select SS1 or SLS, the inverter will trigger a STOP B.
– As soon as you select STO, the inverter will trigger a STOP A.
General fault response of safety function STO
Safety Integrated Function Manual, SINAMICS G120
Function Manual, 07/2010, FW 4.3.2, A5E03052391B AA