Fanuc SP9012 DC LINK circuit overcurrent

Amplifier alarm number: 12

Alarm reason: caused by excessive current of the spindle motor.

Troubleshooting ideas:

1
Check the initialization of the inherent parameters of the spindle motor.

2
Check the insulation filling of the cable and whether the phase sequence of the power line is connected incorrectly.

3
Replace the spindle amplifier.

4
If this alarm occurs when the winding is switched, there may be problems with the contactor and PMC timing.