FANUC Alarm MOTN-120 — WARN Invalid reference position

Manufacturer wording — WARN Invalid reference position (G:%d^2)
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC MOTN-120 (“WARN Invalid reference position”): Invalid reference position First check: Check reference position

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 →