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 2026-09-17 · LogrobotLM reference
Description
Insufficient memory exists to plan an arc instruction.
Remedy
Check if weld controler is functioning correctly, or powered on.
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 →