ABB Error 111866 — Communication Error (Warning)

What it means · Ce que ça veut dire

Communication Error (Warning) — ABB robot hardware event on the Communication Error (Warning) (IRC5). Specific to this controller generation. Severity: Major. Field diagnosis below (French); your robot's own manual remains authoritative.

The load on the system's CAN-bus is temporarily too high in unit arg . Fault code: arg Internal unit: arg The power unit/wire feed unit has lost contact with the welding data unit. Le texte constructeur de ce code n'existe qu'en anglais dans les manuels ABB dont il provient. Il est reproduit tel quel ci-dessus ; le manuel de votre robot fait foi.

What to check · Que vérifier

• Inspect the Communication Error (Warning), its wiring and connections first.
• Match this code against your robot's event-log timeline before swapping parts.
• Follow the French field checks below — they are the tested sequence for this fault.
• Check that all the equipment is correctly connected.
• If the fault persists, send for a service technician.

Frequently asked · Questions fréquentes

What does ABB error 111866 mean?

ABB 111866 (“Communication Error (Warning)”): Communication Error (Warning) — ABB robot hardware event on the Communication Error (Warning) (IRC5). Specific to this controller generation. Severity: Major. Field diagnosis below (French); your robot's own manual remains authoritative.

How do you troubleshoot ABB error 111866?

Inspect the Communication Error (Warning), its wiring and connections first. Match this code against your robot's event-log timeline before swapping parts. Follow the French field checks below — they are the tested sequence for this fault.

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