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ASDA-A3

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Troubleshooting

AL026 Encoder unreliable internal data

Condition: internal data error occurs three consecutive times.

Trigger condition

and cause

Cause:

1. External interference.

2. Malfunction of the encoder hardware.

If there is interference, check the following items:

1. Check if the motor is properly grounded. Make sure the ground end (encd) of

the power cable is grounded to the servo drive heat sink.

2. 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

Checking method

cables to avoid interference.

and corrective action 3. Use shielded cable for the encoder cable. Pull out the wire mesh and have it

correctly grounded.

How to clear the

alarm?

4. Check the communication error rate by setting P0.002 to -80. If the value is

greater than 0 and increases continuously, check the previous three items

again. If the value is 0, send your servo motor back to the distributor or

contact Delta.

Cycle power on the servo drive.

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AL027 Encoder internal reset error

Trigger condition

and cause

Condition: encoder reset error.

Cause: encoder reset.

1. Check if there is poor connection for the encoder signal cable.

2. Check if the power supply for the encoder is stable and make sure to use

shielded cable.

Checking method

and corrective action

3.

Check if the operating temperature is over 95°C (203°F). Identify the cause for

the high temperature and do not restart the operation before the temperature

drops to the allowable range.

How to clear the

alarm?

If the issue persists, send your servo motor back to the distributor or contact Delta.

Cycle power on the servo drive.

Send Quote Requests to info@automatedpt.com

Call +1(800)985-6929 To Order or Order Online At Deltaacdrives.com

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