50

AMA Calibration Failed

Danfoss · VLT HVAC Drive FC 102

What does 50 mean?

The Automatic Motor Adaptation (AMA) routine failed to complete successfully. AMA is essential for optimizing drive performance with the connected motor, and its failure means the drive may not operate efficiently or correctly, leading to suboptimal control.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

    Check for any external interference, unstable power supply, or significant motor cable length during AMA.

  2. 4

    Attempt AMA again, ensuring optimal conditions and following the manual's procedure precisely.

Source: Danfoss VLT HVAC Drive FC 102
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