FANUC Alarm MHND-243 — PAUSE … I/O error

Manufacturer wording — PAUSE %s I/O error
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC MHND-243 (“PAUSE … I/O error”): I/O data error. First check: Check other alarm log errors for more details.

Updated 2026-09-17 · LogrobotLM reference

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 →