Siemens SINAMICS S120 Function Manual page 63

Acknowledging the Safety faults
Faults associated with Safety Integrated Basic Functions must be acknowledged as follows:
1. Remove the cause of the fault.
2. Deselect "Safe Torque Off" (STO).
3. Acknowledge the fault.
If the Safety commissioning mode is exited when the Safety functions are switched off
(p0010 = value not equal to 95 when p9601 = p9801 = 0), then all the Safety faults can be
acknowledged.
Once Safety commissioning mode has been selected again (p0010 = 95), all the faults that
were previously present reappear.
NOTICE
As for all other faults, the Safety faults can also be acknowledged by switching the drive
unit off and then on again (POWER ON).
If this action has not eliminated the fault cause, the fault is displayed again immediately
after power up.
Description of faults and alarms
Note
The faults and alarms for SINAMICS Safety Integrated functions are described in the
following document:
Reference: /LH1/ SINAMICS S120/S150 List Manual
Safety Integrated
Function Manual, (FHS), 11/2009, 6SL3097-4AR00-0BP0
Safety Integrated Basic Functions
4.4 Safety faults
63