FANUC Alarm ARC-200 — WARN Arclink ch… heartbeat timeout

Manufacturer wording — WARN Arclink ch%d heartbeat timeout
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC ARC-200 (“WARN Arclink ch… heartbeat timeout”): The welding equipment connected on the Arclink is not responding to queries. First check: Check the power and Arclink connections to the welding equipment.

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 →