AMA internal fault (Contact supplier)

What does 58 mean?

A persistent internal fault has occurred during the Automatic Motor Adaptation (AMA) process that cannot be resolved through simple restarts. This indicates a potentially deeper issue with the drive's internal diagnostics or hardware.

• A critical internal drive hardware component has failed (e.g., main processor, power module, measurement circuit).
• Severe and unrecoverable corruption of drive firmware or operating system.
• Permanent damage to the control board or its communication bus.
• Persistent internal sensor fault preventing accurate motor characterization.
• Failure of a power stage component that impacts motor current or voltage output during AMA.

Click steps to track your progress.

1. 1

   1. Record all drive parameters (P-settings) for documentation and future reference before further troubleshooting.

2. 2

   2. Cycle power to the drive (power off, wait 60 seconds, power on) and observe if the fault persists immediately.

3. 3

   3. Disconnect the motor completely from the drive output terminals (U, V, W) and attempt AMA in 'no motor connected' mode (if supported).

4. 4

   4. Visually inspect the drive's internal components for signs of burning, bulging capacitors, or physical damage.

5. 5

   5. Collect drive model number, serial number, firmware version, and detailed fault occurrence information for technical support.