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 ARC-050 — WARN Process … NOT found

Manufacturer wording — WARN Process %d NOT found
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC ARC-050 (“WARN Process … NOT found”): ArcTool failed to find this process on the weld power supply. First check: Enter a different number or use the SEARCH parameters and function key.

Updated 2026-09-17 · LogrobotLM reference

Description

ArcTool failed to find this process on the weld power supply.

Remedy

Enter a different number or use the SEARCH parameters and function key.

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 →