The spindle motor can't reach or hold the speed it was told to run. Spindle amplifier alarm 02.
What causes Fanuc alarm SP9002?
Overload from a heavy cut or dull tool. Slipping or broken drive belts. Spindle bearing drag. Spindle amplifier or motor feedback fault.
How do I fix Fanuc alarm SP9002?
Check belt condition and tension (power off). Try running the spindle with no cut and watch the load meter. Check the tool and the cut. If it happens without a heavy cut, have a tech check the spindle drive, motor and feedback.
Alarm numbers and text can differ by control model, software version and machine builder. This page is a starting point from people who have worked on these machines, not a replacement for your machine builder's manual.
Still stuck on SP9002? Send one request.
Free for shops that need a repair. We pass your request to repair techs who cover your area and fix your brand. They reach out to you directly.
Free, no account
Only techs who fix your machine
Machine down? Say so and we flag it urgent
Axis & SpindlesCNC Repair Directory & Magazine
The leading CNC machine repair directory and a leading machine shop and repair magazine. We help shop owners, consumers and manufacturers find trusted repair, and keep the industry informed with the latest news, trends and headlines. Run by people who have worked in machine shops and run maintenance.