Auto Tuning Fault

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This fault indicates that the drive's auto-tuning process was unsuccessful, preventing the drive from accurately measuring and optimizing motor parameters. This can occur if motor parameters are incorrectly entered, the process is interrupted, or there are issues with the motor wiring. Without successful auto-tuning, the drive's motor control performance may be suboptimal or lead to operational issues.

• Motor not correctly wired to the drive (e.g., phase sequence incorrect, one phase open circuited) preventing proper current injection.
• Incorrect motor nameplate data (P2-01 to P2-05) entered into the drive, leading to inaccurate motor model parameters.
• Motor shaft mechanically blocked or unable to rotate freely during the tuning process, preventing accurate inductance/resistance measurements.
• Motor disconnected from the load during tuning when dynamic tuning requires a connected load for accurate results.
• Excessive electrical noise in the environment interfering with the drive's measurement process during tuning.

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

1. 1

   1. Verify that all motor nameplate data (P2-01 Motor rated current, P2-02 Motor rated speed, P2-03 Motor rated voltage, P2-04 Motor rated frequency, P2-05 Motor rated power) is accurately entered into the drive.

2. 2

   2. Ensure the motor cable connections at the drive output (U, V, W) and the motor terminals are secure, correctly phased, and free from loose contacts.

3. 3

   3. Confirm that the motor shaft is free to rotate slightly for static tuning or can rotate freely with the load for dynamic tuning (ensure no mechanical binding).

4. 4

   4. If required by the drive manufacturer's instructions, ensure the motor is connected to its mechanical load during the auto-tuning process.

5. 5

   5. Check for any strong electromagnetic interference (EMI) sources near the drive or motor that might disrupt precise electrical measurements during tuning.