AMT Motor Nameplate Data Inconsistency

What does 51 mean?

This fault indicates an inconsistency in the registered motor data that prevents successful Automatic Motor Tuning (AMT). The drive's internal checks have found a mismatch between the provided motor parameters and expected values, which can lead to incorrect motor characterization and suboptimal performance.

• Inaccurate or conflicting motor nameplate data entered into parameters P3-01 through P3-10 (e.g., rated current vs. rated power).
• The connected motor's physical characteristics (e.g., impedance) do not align with the entered nameplate data during internal validation.
• Attempting to tune a motor that is fundamentally incompatible with the drive's power range or control algorithms.
• Manual adjustments to advanced motor model parameters (e.g., P5-06) creating inconsistencies with basic nameplate data.

Click steps to track your progress.

1. 1

   1. Cross-reference all motor nameplate parameters (P3-01 Motor rated power, P3-02 Motor rated current, etc.) against the motor's physical label.

2. 2

   2. Ensure the entered motor voltage (P3-03) matches the actual supply voltage configuration for the motor.

3. 3

   3. Reset all motor parameters to default values (P3-00 = 0) and re-enter them carefully from the nameplate.

4. 4

   4. Verify that the drive's rated output current and voltage are appropriate for the connected motor's ratings.

5. 5

   5. If using a custom or specialty motor, ensure it meets the drive's general motor compatibility specifications.