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FANUC Alarm SPOT-366 — WARN Unable to register IWC interrupt

FANUC SPOT-366 (“WARN Unable to register IWC interrupt”): Unable to register IWC interrupt The driver was unable to register an interrupt for the IWC board. First check: Notify Product Development.

Updated 2026-09-17 · LogrobotLM reference

Description

Unable to register IWC interrupt The driver was unable to register an interrupt for the IWC board.

Remedy

Notify Product Development.

Related codes

SPOT-364WARN IWC has invalid DPRAM signatureSPOT-365WARN Unsupported IWC version/rev levelSPOT-367WARN Only 40 functions allowed in a scheduleSPOT-368WARN Imp. can only come before weld FCTN

Indicative field information — the robot manufacturer's manual and safety procedures always prevail. Never bypass a safety device; apply lockout/tagout (LOTO) before any physical intervention. How this reference is built →