Issue:

tLOF error or Drive overload error.

Product Line:

ATV630 and ATV930 Drives

Environment:

All

Cause:

- Ambient temperature too high.

- Bad cooling.

- Filter blocked.

- Check the ventilation.

- Function of fans faulty.

Resolution:

- Verify the size of the load/motor/drive according to environment conditions.

- Check the ventilation of the inverter and the ambient.

- Verify the settings of the [Drive Overload Monit] tLOL parameter.

Released for:Schneider Electric USA