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FANUC Alarm ARC-013 — STOPL Arc Start failed

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

FANUC ARC-013 (“STOPL Arc Start failed”): The arc detect input did not stabilize during an arc start. First check: Check if weld controler is functioning correctly, or powered on.

Updated 2026-09-17 · LogrobotLM reference

Description

The arc detect input did not stabilize during an arc start.

Remedy

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

Related codes

ARC-011STOPL Wire stick, not resetARC-012STOPL Wire stick reset(s) failedARC-014WARN Teach pendant is disabledARC-015WARN Press shift with this key

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 →