Fanuc alarm 13: CPU internal RAM error
αi SPM · Fanuc αi SPM
What it means
An error was detected in the internal RAM of the CPU on the αi SPM control printed-circuit board during the power-on self test. The spindle amplifier is abnormal and must be exchanged.
Likely causes
- SPM control PCB RAM failure
- Loose control board connectors after service
Replacement parts
We supply the following units for this alarm — tested, warranty-backed:
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A06B-6111-Hxxx / A06B-6112-Hxxx (SPM) or SPM control PCB
amplifier · Primary suspect
Need the part urgently?
Send us alarm 13 with your machine details — typical RFQ turnaround is 24–48h.