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Faults and Alarms
List of faults and alarms
Remedy:
For fault value, bit 0 = 1:
- correct encoder cable connected?
- check the plug connections of the encoder cable.
- SMC30: Check the parameterization (p0404.22).
For fault value, bit 1 = 1:
- correct encoder cable connected?
- replace the encoder or encoder cable.
Acknowledgment:
This fault can only be acknowledged by canceling the pulses.
F31130
Encoder 1: Zero mark does not match position of C/D track
Reaction:
ENCODER (DCBRAKE, NONE, OFF1, OFF2, OFF3, STOP1, STOP2)
Acknowledge:
READY
Cause:
After initializing the rotor position using the C/D track or using Hall signals, the zero mark was detected outside the
permissible range. This zero mark is rejected.
The deviation may be up to 18 ° mechanical or up to 60 ° electrical.
Fault value (r0949, decimal):
Normalization: 32768 = 180 °
High word:
Mechanical zero mark position determined.
If the initialization via a C/D track is selected in p0404, then it is checked whether the zero mark occurs in an angular
range of +/-18 ° mechanical.
Low word:
Deviation of the zero mark from the expected position as electrical angle.
If the correction of the commutation position with the zero mark is selected in p0404, then a difference of a maximum
of +/- 60 ° electrical is permitted.
Remedy:
- check that the encoder cables are routed in compliance with EMC.
- check the plug connections.
- if the Hall sensor is used as equivalent C/D track, check the connection.
- check the C or D track connection.
- replace the encoder or encoder cable.
Acknowledgment:
This fault can only be acknowledged by canceling the pulses.
F31131
Encoder 1: Deviation, position incremental/absolute too large
Reaction:
ENCODER (DCBRAKE, NONE, OFF1, OFF2, OFF3, STOP1, STOP2)
Acknowledge:
READY
Cause:
When cyclically reading the absolute position, an excessively high deviation to the incremental position was
detected. The absolute position that was read is rejected.
Limit value for the deviation:
- EnDat encoder: Is supplied from the encoder and is a minimum of 2 quadrants (e.g. EQI 1325 = 2 quadrants, EQN
1325 = 50 quadrants).
- other encoders: 15 pulses = 60 quadrants.
Fault value (r0949, decimal):
Deviation in quadrants (1 pulse = 4 quadrants).
Remedy:
- check that the encoder cables are routed in compliance with EMC.
- check the plug connections.
- replace the encoder or encoder cable.
- check whether the coding disk is dirty or there are strong ambient magnetic fields.
Acknowledgment:
This fault can only be acknowledged by canceling the pulses.
F31150
Encoder 1: Initialization error
Reaction:
ENCODER (DCBRAKE, NONE, OFF1, OFF2, OFF3, STOP1, STOP2)
Acknowledge:
READY
Cause:
Encoder functionality selected in p0404 is not operating correctly.
Fault value (r0949, hexadecimal):
The fault value is a bit field. Every set bit indicates functionality that is faulted.
The bit assignment corresponds to that of p0404 (e.g. bit 5 set: Error C/D track).
See also: p0404
3-604
Siemens AG 2004 All Rights Reserved
SINAMICS G List Manual, Edition 12.2004
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