55

AMA Parameter Out of Range

Danfoss · VLT HVAC Drive FC 102

What does 55 mean?

During the Automatic Motor Adaptation (AMA) process, one or more motor parameters were determined to be outside the acceptable range for the drive or could not be determined accurately. This prevents the drive from creating a proper motor model, impacting control.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

    Ensure no external forces or loads are acting on the motor during the AMA process.

Source: Danfoss VLT HVAC Drive FC 102
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