FANUC Alarm MHND-017 — WARN UOP is not the master device
FANUC MHND-017 (“WARN UOP is not the master device”): The UOP is not the master device, which prevents the run request from executing. First check: Go to the Variables menu under SYSTEM, and set $RMT_MASTER=0.
Updated 2026-09-17 · LogrobotLM reference
Description
The UOP is not the master device, which prevents the run request from executing.
Remedy
Go to the Variables menu under SYSTEM, and set $RMT_MASTER=0.
Related codes
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 →