Phase search failure (_ecPHASE_SEARCH_FAILED)

What does 10020 mean?

The phase search procedure, required for controlling motors with an "encoder only" type feedback, failed to complete successfully. This indicates an issue with encoder settings or motor pole configuration preventing proper motor commutation.

• Incorrect encoder settings configured in the drive for the specific motor and application.
• Incorrect number of motor poles configured in the drive parameters.
• Faulty encoder or damaged encoder wiring preventing accurate feedback during phase search.
• Improper motor type selection (e.g., 'encoder only' when another type is required or vice-versa).

Click steps to track your progress.

1. 1

   Verify that the encoder type and settings in the drive parameters correctly match the installed motor encoder.

2. 2

   Confirm that the configured number of motor poles matches the actual motor nameplate data.

3. 3

   Inspect the encoder wiring for damage, shorts, loose connections, or interference that could disrupt signals during phase search.

4. 4

   Perform a manual rotation of the motor shaft to check for encoder signal output and integrity.

5. 5

   Re-run the phase search procedure after verifying all motor and encoder parameters.