[Cause]
The end effector interface +24V output protection fuse (FUSE4) has blown.
[Countermeasure]
1. It is possible that RI/O, 24VR and 0V may form a short circuit. Please check whether there are any abnormalities in the robot connection cable and end effector cable, and replace them if necessary. Be sure to obtain an image backup of the controller before implementing countermeasure 2 below.
2. Replace the motherboard.
3. Replace the interface unit.
For details, please take appropriate measures according to the "Fault Tracing Based on Fuse" in the control device maintenance manual corresponding to the control device used.