[Cause]
The action time of arc starting height adjustment is too long.
[Countermeasure]
This alarm may occur when arc start height adjustment is executed at an extremely low speed override. If this alarm occurs with the override at 100%, before performing other operations (power-off and jogging operations) after the alarm occurs, use the abnormal-condition recording function (“Abnormal Condition Record” in the auxiliary menu) to obtain an image backup and contact the service center. If the abnormal-condition recording function cannot be used, record the conditions and operating steps leading up to the alarm, obtain an image backup, and contact the service center.