Cause : MOT OVERTEMP comes when motor temperature is too high (or appears to be too high) due to excessive load, insufficient motor power, inadequate cooling or incorrect start-up data.

The F0009 code in your ABB ACS310 drive indicates a motor overtemperature fault. This means the temperature of the motor connected to the drive has exceeded its safe operating limit.

1. Check motor ratings, load and cooling.
2. Check start-up data.
3. Check fault function parameters.
4. Check value of fault limit.
5. Check that actual number of sensors corresponds to value set by parameter 3501 SENSOR TYPE.
6. Let motor cool down.
7. Ensure proper motor cooling: Check cooling fan, clean cooling surfaces, etc.