52
AMA low I nom
Danfoss · VLT HVAC-FC 102 Frequency Converter
What does 52 mean?
The motor current is detected as too low for the Automatic Motor Adaptation (AMA) process to properly function. This may indicate an incorrect motor data entry or an undersized motor for the drive's capabilities. Incorrect current settings hinder accurate motor characterization and optimal drive performance.
Additional Steps
Steps 1–2 are listed in Priority Fix.
- 3
Confirm that the motor is appropriately sized for the frequency converter; if the motor is too small, AMA may struggle to detect sufficient current.
Source: Danfoss VLT HVAC-FC 102 Frequency Converter
View Official PDF