Siemens SINAMICS G120 List Manual page 1118

4 Faults and alarms
4.2 List of faults and alarms
F07935 (N) Drive: Incorrect motor holding brake configuration
Message class: Error in the parameterization / configuration / commissioning procedure (18)
Reaction: NONE (OFF1, OFF2, OFF3)
Acknowledge: IMMEDIATELY
Cause: An incorrect motor holding brake configuration was detected.
Fault value (r0949, interpret decimal):
0:
A motor holding brake was detected where the brake control has not been configured (p1215 = 0).
The brake control configuration was set to "motor holding brake the same as sequence control" (p1215 = 1) (only
when commissioning for the first time).
1:
A motor holding brake was detected where the brake control has not been configured (p1215 = 0).
The brake control configuration was left at "No motor holding brake available" (p1215 = 0).
Remedy: For fault value = 0:
- no remedy required.
For fault value = 1:
- if required change the motor holding brake configuration (p1215 = 1, 2).
- if this fault value unexpectedly occurs, then the motor connections should be checked in order to rule out that they
have been interchanged with other drive units.
See also: p1215 (Motor holding brake configuration)
F07936 Drive: load failure
Message class: Application/technological function faulted (17)
Reaction: OFF1 (NONE, OFF2, OFF3)
Acknowledge: IMMEDIATELY
Cause: The load monitoring has detected a load failure.
Remedy: - check the sensor.
- if necessary, deactivate the load monitoring (p2193).
See also: p2193 (Load monitoring configuration), p3232 (Load monitoring failure detection)
F07950 (A) Motor parameter incorrect
Message class: Error in the parameterization / configuration / commissioning procedure (18)
Reaction: NONE
Acknowledge: IMMEDIATELY
Cause: The motor parameters were incorrectly entered while commissioning (e.g. p0300 = 0, no motor)
Fault value (r0949, interpret decimal):
Parameter number involved.
See also: p0300, p0301, p0304, p0305, p0307, p0310, p0311, p0314, p0316, p0320, p0322, p0323
Remedy: Compare the motor data with the rating plate data and if required, correct.
A07960 Drive: Incorrect friction characteristic
Message class: Error in the parameterization / configuration / commissioning procedure (18)
Reaction: NONE
Acknowledge: NONE
Cause: The friction characteristic is incorrect.
Alarm value (r2124, interpret decimal):
1538:
The friction torque is greater than the maximum from the upper effective torque limit (p1538) and zero. This is the
reason that the output of the friction characteristic (r3841) is limited to this value.
1539:
The friction torque is less than the minimum from the lower effective torque limit (p1539) and zero. This is the reason
that the output of the friction characteristic (r3841) is limited to this value.
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SINAMICS G120 CU250S-2 Control Units
List Manual, 09/2017, A5E33842890