FANUC Alarm BELL-004 — WARN Machine 1 is bypassed

FANUC BELL-004 (“WARN Machine 1 is bypassed”): Bypass Machine 1 input signal is ON. First check: The bypass machine 1 input must be OFF to enable the machine.

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 →