FANUC Alarm HOST-311 — Interlock Mode signal is off

FANUC HOST-311 (“Interlock Mode signal is off”): You press the OPR enable button but interlock signal is off. First check: Set the interlock signal ON.

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 →