Drivecon F57 fault code meaning
Drivecon / F57
Series: XT
Thermistor fault
AC drive
Meaning: Thermistor input in relay / Check: thermistor board has detected - motor cooling and loading motor overtemperature. Fault - thermistor connection. If expansion board appears when thermistor input has thermistor input is not used, it should be been open over 1s. shorted - motor parameters - the brake operation
Possible causes
Source: Drivecon XT Series Manual 7.2 Inverter fault codes