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FANUC Alarm SPOT-380 — WARN Invalid IWC Firmware Version

FANUC SPOT-380 (“WARN Invalid IWC Firmware Version”): Invalid IWC Firmware Version The firmware versions on the timer card must be the same if there are 2 timers. First check: Make sure the firmware version and revision level match for both cards.

Updated 2026-09-17 · LogrobotLM reference

Description

Invalid IWC Firmware Version The firmware versions on the timer card must be the same if there are 2 timers. Either the firmware version itself is different, or the revision level of the firmware is different.

Remedy

Make sure the firmware version and revision level match for both cards. It could be viewed by plugging in one card at a time and viewing the revision level of each.

Related codes

SPOT-378WARN IWC ID jumpers incorrectSPOT-379WARN IWC slave busySPOT-381IWC(DG) system errorSPOT-382PAUSE IWC(DG) illegal stepper number

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 →