Auto-tuning Minor Fault

What does Er - 02 mean?

A minor fault was detected during the auto-tuning process. This could indicate slight discrepancies in input data, wiring issues, or problems with the mechanical load connected to the motor, impacting the accuracy of tuning.

• Slight inaccuracy in motor nameplate data parameters, causing the auto-tuning algorithm to struggle.
• Intermittent wiring connection between the drive and the motor's output terminals (U, V, W).
• Minor mechanical resistance or friction in the load train not allowing smooth motor rotation during tuning.
• Electrical noise on the motor feedback lines (if applicable) causing slight measurement errors.
• Ambient temperature fluctuations during the tuning process affecting motor parameters.

Click steps to track your progress.

1. 1

   1. Re-verify all motor nameplate data entered into parameters (e.g., P3-01, P3-02, P3-04) against the physical motor label.

2. 2

   2. Inspect motor wiring connections for tightness at both the drive output terminals (U, V, W) and the motor terminal box.

3. 3

   3. Manually rotate the motor shaft to check for any slight binding or unusual resistance.

4. 4

   4. Ensure the motor is operating at its normal operating temperature before initiating auto-tuning.

5. 5

   5. Try running the auto-tuning process again, ensuring no external disturbances during the procedure.

6. 6

   6. If the drive supports different auto-tuning modes (e.g., static vs. dynamic), try an alternative mode.