Delta ASDA-A3 Series User Manual page 530

ASDA-A3
AL075 Absolute encoder position error
Trigger condition
and causes
Checking methods
and corrective
actions
How to clear the
alarm?
AL077 Encoder computing error
Trigger condition
and causes
Checking methods
and corrective
actions
How to clear the
alarm?
AL079 Encoder parameter error
Trigger condition
and causes
Checking methods
and corrective
actions
How to clear the
alarm?
Revision December, 2017
Absolute encoder position error.
1. Check if the motor is well grounded; make sure the power cable is
grounded to the heat sink of the servo drive.
2. Make sure the encoder cable is separated from the power supply or any
high-current cables to avoid interference.
3. Use shielded cable for the encoder and pull out the shielded mesh and
ground it.
4. Check the motor speed and make sure it is within the rated range.
If the issue persists, please send your servo drive back to the distributor or
contact Delta.
Cycle power on the servo drive.
Encoder internal error (internal computing error).
1. Check if the motor is well grounded; make sure the power cable is
grounded to the heat sink of the servo drive.
2. Make sure the encoder cable is separated from the power supply or any
high-current cables to avoid interference.
3. Use shielded cable for the encoder and pull out the shielded mesh and
ground it.
4. Check the motor speed and make sure it is within the rated range.
If the issue persists, please send your servo drive back to the distributor or
contact Delta.
Cycle power on the servo drive.
The encoder is not cycled after the parameter is written, so the parameter
value is not updated.
Check if the parameter is written to the encoder. If so, please cycle power on
the encoder to update the parameter.
Cycle power on the servo drive.
Troubleshooting
11
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