Delta ASDA-A3 Series User Manual page 1192

ASDA-A3
AL07A Encoder Z phase position is lost
Trigger condition
and cause
Checking method
and corrective action
How to clear the
alarm?
AL07B Encoder memory is busy
Trigger condition
and cause
Checking method
and corrective action
How to clear the
alarm?
AL07C Command to clear the absolute position is issued when the motor speed is over
200 rpm
Trigger condition
and cause
Checking method
and corrective action
How to clear the
alarm?
Encoder Z phase position is in error.
Send your servo motor back to the distributor or contact Delta.
N/A
The encoder memory is busy.
Check if the motor is properly grounded. Make sure the ground end (green) of
1.
the power cable is grounded to the servo drive heat sink.
Check if the connection for the encoder signal cable is normal. Make sure the
2.
encoder signal cable is separated from the power supply or any high-current
cables to avoid interference.
Use shielded cable for the encoder cable. Pull out the wire mesh and have it
3.
correctly grounded.
Check the motor speed and make sure it is within the rated range.
4.
If the issue persists, send your servo motor back to the distributor or contact Delta.
Cycle power on the servo drive.
The command to clear the absolute position is issued when the motor speed is
over 200 rpm.
Check if a command to clear the absolute position is issued while the motor
1.
speed is over 200 rpm. If so, reduce the motor speed until the speed is lower
than 200 rpm, and then follow the procedure for clearing the absolute position
to clear this alarm.
Do not issue a command to clear the absolute position when the motor speed
2.
is over 200 rpm.
DI.ARST or cycle power on the servo drive.
Troubleshooting
14
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