Fanuc alarm 9
αi SVM · Fanuc αi SVM
What it means
Inverter: DC link current alarm, M axis (second axis on multi-axis SVM).
Likely causes
- Power lead phase-to-phase short or ground fault
- Motor winding short / ground fault
- SVM inverter failure
Triage note: Same isolation logic as code 8 but identifies M axis. CNC alarm SV0600 detail 9.
Replacement parts
We supply the following units for this alarm — tested, warranty-backed:
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A06B-6114-H2xx
Servo Amplifier Module αiSVM (rating-dependent) · Primary suspect
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Motor power lead set
Motor Power Cable · Common cause
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A06B-02xx/03xx-Bxxx
αiS/αiF Servo Motor · Common cause
Need the part urgently?
Send us alarm 9 with your machine details — typical RFQ turnaround is 24–48h.