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 → · Le diagnostic IA qui lit la sauvegarde de votre robot, sans rien téléverser.

FANUC Alarm ARC-020 — STOPL No plan data area available

FANUC ARC-020 (“STOPL No plan data area available”): Insufficient memory exists to plan an arc instruction. First check: Check if weld controler is functioning correctly, or powered on.

Updated 2026-08-29 · LogrobotLM reference

Description

Insufficient memory exists to plan an arc instruction.

Remedy · Remède

Check if weld controler is functioning correctly, or powered on.

Frequently asked · Questions fréquentes

What does FANUC alarm ARC-020 mean?
FANUC ARC-020 (“STOPL No plan data area available”): Insufficient memory exists to plan an arc instruction.
How do you troubleshoot FANUC alarm ARC-020?
Check if weld controler is functioning correctly, or powered on.

Related codes / Codes liés

ARC-018STOPL Lost arc detect (%s^4,%d^5)ARC-019STOPL Can't read arc detect input (%s^4,%d^5)ARC-021ABORT Program aborted while welding (%s^4,%d^5)ARC-022WARN Weld AO scaling limit used (%s^4,%d^5)

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. · Informations indicatives issues du terrain — le manuel du constructeur et ses procédures de sécurité font foi. Ne shuntez jamais un organe de sécurité ; consignez (LOTO) avant toute intervention physique. How this reference is built →