SPINDLE DRIVES
Cncrepair.com rebuilds or exchanges the following CNC Servo and Spindle drives, if your drive is not listed, please call. We continually add new drives to our list
The primary causes of failure of spindle rives is fan failure, running hot and cast iron dust grime. Keep your electrical cabinets closed, keep your fans in good repair and KEEP YOUR CABINET FILTERS CLEAN!.
When troubleshooting any AC or DC PWM spindle drive, it is risky to swap top boards while trying to find the problem. A bad top board can blow the power modules and bad power modules usually blow the top board. Board swapping often leads to 2 MACHINES DOWN! Call the OEM and obtain their procedure for checking the power modules with a ohmmeter. Then check the for the correct base drive voltages on the top board without DC bus voltage. We provide phone troubleshooting for the above drives on a pay basis.
| Manufacturer | Typical control | Typical failures | Typical part # |
| Fanuc DC spindle drives | Fanuc 5, Fanuc 6, | erratic operation, nuisance alarms | Top Board: A20B-0008-0371 |
| Fanuc AC spindle drives, metal cage | Fanuc 6, Fanuc 10, Fanuc 11, Fanuc 0 | OC alarm, blows main fuses, smoke, very reliable | |
| Fanuc AC spindle drives, plastic cage | Fanuc 11, Fanuc 15, Fanuc 0 | ||
| Fuji DC spindle drives | Fanuc 5, Fanuc 6 | very reliable, field loss | |
| Fuji AC spindle drives | Fanuc 11 | blows DC link or AC fuses, OC alarm | FRENIC 5000 V2 |
| GE Valutrol spindle drives | GE-1050 or Bendix 5 | erratic spindle speed, blows fuses, field loss | |
| GE DC-300 spindle drives | GE-2000 | looses parameters | |
| Hurco Spindle drives | Hurco | OC alarm, smoke | CACR-SR-xx |
| Mitsubishi DC spindle drives | Fanuc 5, Fanuc 6, Fanuc 2000, Fanuc 3000 | very reliable, blows fuses, | DL-SCZ |
| Mitsubishi AC spindle drives | Fanuc 10, Fanuc 11, Mitsubishi | OC alarm, blows main fuses, DC link alarm | FRSE, FRSF |
| Siemens DC spindle drives | Siemens, Index, Fanuc 6 | Leds wrong, blown fuse | |
| Yaskawa DC spindle drives | Yasnac, Fanuc 6 | erratic motor, sounds bad | 505MT2 |
| Yaskawa AC spindle drives | Yasnac, Fanuc 6 | OC alarm | 626MT2, 626MT3, CPQR, |
| Yaskawa 626-MT2B | erratic alarms, thermally related | 626-MT2B (blue cover) |