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When " Err33(Ser. Com. Err!) appears on OP Screen.


Cause : The main motor drive board input the 12V to CPU board as communication error between main motor driver board and CPU board. Then, the error is appeared when this parts is abnormal.
Type : It is applied to direct type only.

Solution : Check whether the communication cable is correctly connected between MMD board and CPU board. Solution :

 

※ If the same errors constantly occur, refer to an A/S engineer for check.