A: In the operation of the motor, the running current exceeds the rated value but is less than the over-current limit value, and the operation time is longer, which is called overload.

The basic characteristics of overload are: Although the current exceeds the rated value, the excess amplitude is not large, and generally does not form a large impact current (otherwise, it will become an over-current fault). Another significant feature of overload is that there is a time accumulation process. When the accumulation time reaches, the overload fault is reported.

Solution: Check the VFD's power/current is bigger than the load or not.