Fanuc alarm 930: CPU INTERRUPT
system alarm · Fanuc 0i-D
What it means
Abnormal CPU interrupt (address/type error) inside the main CPU - hardware or rare software fault
Likely causes
- main CPU board failure
- loose option board causing bus fault
- rare corrupted system software
Triage note: Power-cycle once; if 930 repeats with varying interrupt types, exchange the main CPU board - repair shops see this as a classic board-level death
Replacement parts
We supply the following units for this alarm — tested, warranty-backed:
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A20B-8200-0740
Main CPU Board (0i-D) · Primary suspect
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A02B-0303-B802
Main CPU Board (30i/31i-B) · Common cause
Need the part urgently?
Send us alarm 930 with your machine details — typical RFQ turnaround is 24–48h.