FANUC Alarm ARC-206 — WARN Arclink ch… too many errors
Manufacturer wording — WARN Arclink ch%d too many errors
The manual prints placeholders; your controller fills them in with the real group, axis or number.
FANUC ARC-206 (“WARN Arclink ch… too many errors”): The Arclink CAN interface is detecting a high rate of errors on the connection to the welder. First check: Check all Arclink connections and wiring to eliminate the electical noise.
Updated 2026-09-17 · LogrobotLM reference
Description
The Arclink CAN interface is detecting a high rate of errors on the connection to the welder. This is usually caused by electical noise on the Arclink network.
Remedy
Check all Arclink connections and wiring to eliminate the electical noise.
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 →