FANUC spindle SP9001 alarm solution

This article uses the FANUC 31i small yellow machine CNC system as a case introduction


SP9001 Motor overheating

Amplifier alarm number: 01

Reason for alarm: The software detects that the spindle motor is overheated.

Troubleshooting ideas:

1. Check the spindle motor temperature. If the temperature is normal, check the temperature sensor.

2. Check whether the cooling fan is abnormal.

3. Check whether the spindle has been under high load for a long time (exceeding the rated value).

4. If this alarm occurs on a third-party electric spindle, you need to check the temperature detection resistor type, and then confirm parameters No.4397#4 and No.4134