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 IBS-221 — PAUSE. G HOST not acknowledge process

FANUC IBS-221 (“PAUSE. G HOST not acknowledge process”): System internal error First check: Notify FANUC.

Updated 2026-09-17 · LogrobotLM reference

Description

System internal error

Remedy

Notify FANUC.

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 →