ABB Error 111806 — Computer WDU fault
Error / Erreur🇫🇷 Calculateur WDU
PROCESS : SOUDAGE WDU (11xxxx) & PEINTURE CBS (13xxxx)
ABB 111806 (“Computer WDU fault”): Computer WDU fault — ABB robot hardware event on the computer WDU (WDU (Soudage)). Likely part: Calculateur WDU (computer WDU).
Updated 2026-08-29 · LogrobotLM reference
What it means · Ce que ça veut dire
Computer WDU fault — ABB robot hardware event on the computer WDU (WDU (Soudage)). Seen across controller generations. Severity: Critical. Field diagnosis below (French); your robot's own manual remains authoritative.
Défaut d'écriture/lecture de la mémoire vive interne RAM de la carte logique WDU.
What to check · Que vérifier
- Inspect the computer WDU, 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.
- Mettre l'automate hors tension et rallumer.
- Remplacer la carte logique si persistant.
- À savoir : Équivalent aux défauts de mémoire vive RWM (510-2) sur S2/S3 ou 32301 sur S4.
Part to check / replace · Pièce à contrôler / remplacer
ABB 111806 points to the hardware below — start here before ordering. · 111806 met en cause l'organe ci-dessous : commencez par là.
Tap a part for every code that points to it — and verify the exact variant for your controller before ordering. · Touchez une pièce pour tous les codes qui la citent ; vérifiez la variante exacte avant commande.
Frequently asked · Questions fréquentes
- What does ABB error 111806 mean?
- ABB 111806 (“Computer WDU fault”): Computer WDU fault — ABB robot hardware event on the computer WDU (WDU (Soudage)). Seen across controller generations. Severity: Critical. Field diagnosis below (French); your robot's own manual remains authoritative.
- How do you troubleshoot ABB error 111806?
- Inspect the computer WDU, 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.
- Which part is involved in ABB 111806?
- 111806 points to Calculateur WDU (computer WDU). Confirm the real cause against the robot backup before replacing a part.
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 →