Fanuc alarm 22: Overcurrent exceeding amplifier time rating
αi SPM · Fanuc αi SPM
What it means
Current exceeding the time rating of the αi SPM flowed, typically because acceleration/deceleration cycles are too frequent or the cutting load is persistently high. This is an operating-condition alarm, not necessarily a hardware fault.
Likely causes
- Excessive frequency of acceleration/deceleration cycles
- Continuous heavy cutting load above rating
- Undersized SPM/motor combination for duty cycle
Triage note: Ease operating conditions; replace amplifier only if alarm recurs at light load.
Need the part urgently?
Send us alarm 22 with your machine details — typical RFQ turnaround is 24–48h.