FANUC Alarm ARC-202 — WARN Arclink ch… obj #… error resp
Manufacturer wording — WARN Arclink ch%d obj #%d error resp
The manual prints placeholders; your controller fills them in with the real group, axis or number.
FANUC ARC-202 (“WARN Arclink ch… obj #… error resp”): A welding equipment component returned an error in response to a request from the controller. First check: Turn the controller and welding equipment off then on again.
Updated 2026-09-17 · LogrobotLM reference
Description
A welding equipment component returned an error in response to a request from the controller.
Remedy
Turn the controller and welding equipment off then on again.
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 →