RFQ turnaround 24–48h · inbound queries only
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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

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Send us alarm SV0465 with your machine details — typical RFQ turnaround is 24–48h.

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