[Cause]
Robot arm breakage was detected. When a safety connector is used, the connector breaks.
[Countermeasure]
1. While holding down the SHIFT key, press the alarm release key to cancel the alarm.
2. Keep holding SHIFT, jog the tool to the work position, and replace the coupling. Alternatively, restore the hand break signal to its normal state. If the hand break signal is not used, disable hand break detection on the system setup screen [6 System / Configuration]. After taking the countermeasures, press the alarm reset key while holding SHIFT.
3. If the alarm cannot be cleared, it may be caused by a failure of related components. Repair the control device in accordance with the instructions corresponding to the control device used
Take corresponding countermeasures under "Troubleshooting based on alarm codes" in the manual.