ALARM 57

AMA timeout

Danfoss · VLT HVAC Basic FC 101

What does ALARM 57 mean?

The Automatic Motor Adaptation (AMA) process failed to complete within the expected time frame. This can occur due to various reasons, including excessive motor heating from repeated attempts, which can affect resistance measurements and prolong the process.

Source: Danfoss VLT HVAC Basic FC 101
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