Fanuc AC Spindle Unit Alarms
Fanuc AC Spindle alarms
The following lists alarms related to Fanuc & GE Fanuc AC Spindle alarms. Includes drives Analog, Digital, S, I, P and Serial AC spindle amplifiers. Includes series 6044, 6055, 6059, 6060, 6062, 6063, 6064, 6065 and other non alpha spindle units. The list below is not exhaustive, by any means and gives a brief description. 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 of Fanuc AC Spindle Alarms |
| 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. |
| 18-23 | CPU Problems |
| A, A1, A2 | ROM Issues |
| 6062-6064 | Varient alarms for A06B-6062, 6063, 6064, 6065 spindle drives. |
| 15 | Spindle Switch / Output switch alarm |
| 16 | Ram Abnormality |
| 19 | Excessive U Phase current detection offset |
| 20 | Excessive V Phase current detection offset |
| 24 | Serial Transfer Data Error (Not normally a fault with spindle drive). |
| 26 | Disconnection of speed detection signal for C contouring control |
| 27 | Position coder signal disconnection |
| 31 | Speed detection signal disconnection motor restraint |
| 33 | Insufficient DC link section charging |
| 51 | Under Voltage at DC Link Section |
Check out our post about: Reasons why spindle drives can fault!
Fanuc America own troubleshooting guides. AC Spindle alarms at DNC Fanuc specialist to Europe.
If you require later drives such as the Fanuc ALPHA (SPM) or aiSP series servo amplifiers then: Fanuc Alpha Spindle Power Module alarms listed separately.
CNC are Fanuc specialists: Parts – Exchange – Repair – Test – Surplus
- Exchange -> Emergency breakdowns; swap the bad for the good immediately. Order Monday to Friday 9am to 4.30PM to ship same day!
- Repair -> Save money avoid paying deposit, keeping your own unit with known history. Current clean, inspect, repair and test turnaround 24-48 hours (normal).
- Surplus -> Either for stock critical parts or for drives that are not repairable or exchangeable due to burn outs, corrosion, etc.
Common Fanuc AC spindle drives that fault: A06B-6044-H208, A06B-6055-H106, A06B-6055-H115, A06B-6055-H212, A06B-6055-H222, A06B-6055-H422, A06B-6059-H212, A06B-6059-H215, A06B-6059-H222, A06B-6060-H003, A06B-6060-H007, A06B-6063-H212, A06B-6064-H315, A06B-6064-H322, A06B-6064-H326, A06B-6064-H327 and more. For complete listings visit Fanuc AC spindle servo units.
Contact us +1(434)971-1394 for more information on Fanuc AC spindle drives and any of the alarms listed for your spindle unit or Fanuc drives.