Delta ASDA-A3 Series User Manual page 1167

Troubleshooting
AL024 Encoder initial magnetic field error
14
How to clear the
alarm?
AL025 Encoder internal error
Trigger condition
and cause
Checking method
and corrective action
How to clear the
alarm?
14-20
If using a linear motor, check the wiring noise interference. For the noise filter
4.
of the converter box, refer to PM.003. For the noise filter of the CN5 position
feedback signal connector, refer to P1.074.
Check the Hall sensor wiring of the linear motor and monitor the Hall sensor
5.
phase sequence by entering "0x1B42F" in the address field of the software
scope.
If the issue persists, send your servo motor back to the distributor or contact Delta.
Cycle power on the servo drive.
Condition: internal memory and counter of the encoder are in error.
Cause:
Encoder internal error (internal memory and counter are in error).
1.
When power is applied, the motor rotates because of the inertia of the
2.
mechanical parts or other causes.
If there is interference, check the following items:
1.
(a) Check if the motor is properly grounded. Make sure the ground end
(green) of the power cable is grounded to the servo drive heat sink.
(b) Check if the connection for the encoder signal cable is normal. Make sure
the encoder signal cable is separated from the power supply or any high-
current cables to avoid interference.
(c) Use shielded cable for the encoder cable. Pull out the wire mesh and
have it correctly grounded.
Make sure the motor shaft does not move when power is turned on.
2.
Cycle power on the servo drive.
ASDA-A3