Fanuc alarm 10: Control power supply voltage decreased
αi SPM · Fanuc αi SPM
What it means
The αi SPM reports that its 24 V control power supply voltage dropped. The defect lies in the control supply chain shared by the modules rather than in spindle drive circuitry.
Likely causes
- Defective external control power supply
- Broken control power cable or connector (CXA2A/B)
- Faulty PSM or SPM internal control supply
Replacement parts
We supply the following units for this alarm — tested, warranty-backed:
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Control power cable CXA2A/B
amplifier · Common cause
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A06B-6110-Hxxx (PSM control section)
power-supply · Check if others ruled out
Need the part urgently?
Send us alarm 10 with your machine details — typical RFQ turnaround is 24–48h.