Cause : Modbus transmission time-out comes when incorrect communication command from upper unit or malfunction caused by interference.

The CE10 fault in MS300 drive indicates an Modbus transmission time-out. This means the communication time exceeds the detection time for communication time-out.

1. Check if the communication command is correct.
2. Check if the setting for Pr.09-02 is the same as the setting for the upper unit.
3. Check the cable and replace it if necessary.