LogrobotLM

LogrobotLM — AI fault diagnosis for ABB · KUKA · FANUC robots. It reads your robot backup in your browser (never uploaded) and pinpoints the fault. Try it free →

FANUC Alarm FRCE-481 — Illegal insertion direction (F:…)

Manufacturer wording — Illegal insertion direction (F:%d^1)
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC FRCE-481 (“Illegal insertion direction (F:…)”): An internal error has occurred. First check: Document the events that led to the error, and contact your FANUC or FANUC Robotics technical representative.

Updated 2026-09-17 · LogrobotLM reference

Description

An internal error has occurred.

Remedy

Document the events that led to the error, and contact your FANUC or FANUC Robotics technical representative.

Related codes

FRCE-479Illegal vision user comp. data (F:…)FRCE-480Unknown insertion mode (F:…)FRCE-482Illegal end condition(approach) (F:…)FRCE-483Illegal retry number (F:…)

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 →