Cause : Temperature Warning comes when supply module temperature is excessive due to eg, module overload or fan failure.

AE5F fault in ABB ACS880 drive indicate temperature warning due to supply module temperature is excessive.

1. Check module cooling air flow and fan operation.
2. Check ambient temperature. If it exceeds 40 °C (104 °F), ensure that load current does not exceed derated load capacity.
3. Check inside of cabinet and heatsink of supply module for dust pick-up.
4. Clean whenever necessary