[Cause]
The teaching pendant is disabled when robot 1 and robot 2 are separated when the mode switch is set to T1 or T2. Or it may be caused by hardware failure.
[Countermeasure]
1. After turning the enable/disable switch of the teaching pendant to enabled, press the RESET button.
2. Even if the above countermeasures are taken and the problem still cannot be repaired, please inform the service center of the details when the alarm occurred.