50

AMA calibration failed

Danfoss · VLT HVAC Drive High Power

What does 50 mean?

The Automatic Motor Adaptation (AMA) routine failed to complete successfully. AMA is crucial for optimizing drive performance by precisely identifying motor parameters. A failed calibration means the drive is not operating with optimal motor data, potentially leading to inefficient operation, motor stress, or poor control.

Complete Troubleshooting Guide

  1. 1

    Ensure all motor data parameters (1-20 to 1-25) are correctly entered before attempting AMA.

  2. 2

    Check motor and cable connections for integrity.

  3. 3

    Contact the Danfoss supplier or Danfoss service department for assistance if the issue persists.