FANUC Alarm SPOT-272 — Illegal PX index
FANUC SPOT-272 (“Illegal PX index”): The PX index is invalid. First check: Document the events that led to the error, and call your FANUC or FANUC Robotics technical representative.
Updated 2026-09-17 · LogrobotLM reference
Description
The PX index is invalid.
Remedy
Document the events that led to the error, and call your FANUC or FANUC Robotics technical representative.
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 →