FANUC Alarm ARC-002 — STOPL Illegal arc schedule number

Manufacturer wording — STOPL Illegal arc schedule number (%s^4,%d^5)
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC ARC-002 (“STOPL Illegal arc schedule number”): An arc instruction contained an illegal schedule number. First check: Check if weld controler is functioning correctly, or powered on.

Updated 2026-09-17 · LogrobotLM reference

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 →