nulizhang

Recently , we have many users post question about 120202 "waiting for a connection the NC/PLC" --actually it is an easy answered question.

But for us to help you fast, Please post your NCU front picture with power on With LED's display  when you have 120202 Alarm.

as it is possible NCU defective or system lost parameters dur to low battery.

Your picture will help me give your correct answer right the way.

 photo attached ,

please help sir.

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Split from 120202 Alarm-All users, Please Post your NCU front picture with LED display .

Closed cause question posted twice.

The second thread with the subject 120202 on ncu unit is published within the conference SINUMERIK CNC automation systems.