Fanuc alarm SP9008: SSPA:08 HIGH INPUT VOLTAGE
spindle alarm (serial spindle, alpha i) · Fanuc 0i-D
What it means
The input voltage of the main power supply rose above the specified upper limit and was detected by the converter stage. Continued operation risks damaging the DC link capacitors and switching devices.
Likely causes
- Utility supply or transformer secondary running high
- Wrong tap setting on the machine transformer
- Detection circuit drift in the power supply module
Triage note: Verify actual line voltage before replacing modules.
Replacement parts
We supply the following units for this alarm — tested, warranty-backed:
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A06B-6110-Hxxx
alpha i Power Supply Module (PSM) · Check if others ruled out
Need the part urgently?
Send us alarm SP9008 with your machine details — typical RFQ turnaround is 24–48h.