Fanuc AC Spindle Unit

Fanuc AC Spindle Unit alarms

The following lists alarms related to Fanuc & GE Fanuc AC Spindle Units. Includes drives Analog, Digital, S, I, P and Serial AC spindle amplifiers. Includes series 6044, 6052, 6055, 6059, 6060, 6062, 6063, 6064 and other non alpha spindle units. The list below is not exhaustive, by any means and gives a snapshot. Please contact us for any more information related to your alarm on your GE Fanuc AC Spindle unit. To find out more about CNC’s exchange services or repair solutions – please contact us.

Alarm code Description
1 Motor is overheated (thermostat operates).
2 Speed is deviated from the command value due to overload and other.
3 Fuse 7 in DC link is blown out.
4 Fuses F1, F2, or F3 in AC input circuit are blown out.
5 Fuse AF2 or AF3 on PCB is blown out.
6 The motor speed exceeds the maximum rated speed (analog system detection).
7 The motor speed exceeds the maximum rated speed (digital system detection).
8 Power voltage (+24 V) is higher than specified.
9 Radiator for power semiconductors is overheated.
10 +15 V power voltage is abnormally low.
11 DC link voltage is abnormally high.
12 DC link current is flowing excessively.
13 CPU and peripheral parts are defective.
14 ROM is defective.
15 Option circuit is in trouble.
16 CPU defective.
17 NVRam issues.

Fanuc Alpha Spindle Power Module alarms are listed separately. Click here