FANUC Alarm ARC-207 — WARN Arclink ch%d no bus power
FANUC ARC-207 (“WARN Arclink ch%d no bus power”): The Arclink interface on the controller cannot detect any power or other equipment on the network connections. First check: Make sure that all Arclink connections are properly made and that the connected welding equipment is also connected and turned on.
Updated 2026-08-29 · LogrobotLM reference
Description
The Arclink interface on the controller cannot detect any power or other equipment on the network connections. This indicates that there is no Arclink network connected, or that the welding equipment is turned off or has been disconnected.
Remedy · Remède
Make sure that all Arclink connections are properly made and that the connected welding equipment is also connected and turned on.
Frequently asked · Questions fréquentes
- What does FANUC alarm ARC-207 mean?
- FANUC ARC-207 (“WARN Arclink ch%d no bus power”): The Arclink interface on the controller cannot detect any power or other equipment on the network connections. This indicates that there is no Arclink network connected, or that the welding equipment is turned off or has been disconnected.
- How do you troubleshoot FANUC alarm ARC-207?
- Make sure that all Arclink connections are properly made and that the connected welding equipment is also connected and turned on.
Related codes / Codes liés
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. · Informations indicatives issues du terrain — le manuel du constructeur et ses procédures de sécurité font foi. Ne shuntez jamais un organe de sécurité ; consignez (LOTO) avant toute intervention physique. How this reference is built →