Fanuc alarm SV0465: READ ID DATA FAILED
αi/βi Servo (SV0xxx) · Fanuc 0i-D
What it means
Reading the amplifier ID information at power-on failed. The CNC identifies each FSSB slave's type and capability from ID data during initialization; without it, axis configuration cannot complete. Usually a marginal connection at power-up — reseat FSSB fibers and power-cycle — but repeated failures suggest the amplifier's ID storage or interface is failing.
Likely causes
- FSSB optical link marginal at initialization time
- Amplifier powered up late (sequence issue)
- Amplifier ID memory/interface fault
Need the part urgently?
Send us alarm SV0465 with your machine details — typical RFQ turnaround is 24–48h.