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ABB Error 71394 — Invalid physical communication channel

Error / Erreur

🇫🇷 Invalid physical communication channel

ABB — CATALOGUE PRODUCTION

ABB 71394 (“Invalid physical communication channel”): Invalid physical communication channel — ABB robot hardware event on the Invalid physical communication channel (IRC5). Likely part: DSQC 1003 (ABB controller board (DSQC series)).

Updated 2026-08-29 · LogrobotLM reference

What it means · Ce que ça veut dire

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

The communication channel arg is out of range. The communication channel arg is unavailable. 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 Invalid physical communication channel, 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.
  • probable : Adapter board DSQC 1003 not installed or the communication channel arg is out of range.
  • Check the allowed minimum and maximum of connectors.
  • Check hardware required.

Part to check / replace · Pièce à contrôler / remplacer

ABB 71394 points to the hardware below — start here before ordering. · 71394 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 71394 mean?
ABB 71394 (“Invalid physical communication channel”): Invalid physical communication channel — ABB robot hardware event on the Invalid physical communication channel (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 71394?
Inspect the Invalid physical communication channel, 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 71394?
71394 points to DSQC 1003 (ABB controller board (DSQC series)). Confirm the real cause against the robot backup before replacing a part.

Related codes / Codes liés

10005Program stopped10007Programme lancé10008Programme relancé

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 →