50

AMA calibration failed

Danfoss · VLT HVAC-FC 102 Frequency Converter

What does 50 mean?

The Automatic Motor Adaptation (AMA) calibration process has failed. This means the drive could not successfully characterize the connected motor, which is critical for optimal performance and protection. Without successful AMA, motor control may be suboptimal or protection features less effective, impacting efficiency.

Complete Troubleshooting Guide

  1. 1

    Gather relevant drive and motor information, including the drive's type code and complete motor nameplate data.

  2. 2

    Contact your Danfoss supplier or Danfoss Service Department, providing them with the collected information for specialized support.