LogrobotLM

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FANUC Alarm ARC-201 — WARN Arclink ch… obj #… no resp

Manufacturer wording — WARN Arclink ch%d obj #%d no resp
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC ARC-201 (“WARN Arclink ch… obj #… no resp”): A welding equipment component on the Arclink failed to respond to a request issued by the controller. First check: Check the power and Arclink connections between the controller and welding equipment.

Updated 2026-09-17 · LogrobotLM reference

Description

A welding equipment component on the Arclink failed to respond to a request issued by the controller.

Remedy

Check the power and Arclink connections between the controller and welding equipment.

Related codes

ARC-199This weld EQ isn't supported(E:…)ARC-200WARN Arclink ch… heartbeat timeoutARC-202WARN Arclink ch… obj #… error respARC-203WARN Arclink ch… reset by master

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 →