ABB Error 71550 — Overlapping I/O signals with differing default values
Error / Erreur🇫🇷 Overlapping I/O signals with differing default values
ABB — CATALOGUE PRODUCTION
ABB 71550 (“Overlapping I/O signals with differing default values”): Overlapping I/O signals with differing default values — ABB robot hardware event on the Overlapping I/O signals with differing default values (IRC5).
Updated 2026-08-29 · LogrobotLM reference
What it means · Ce que ça veut dire
Overlapping I/O signals with differing default values — ABB robot hardware event on the Overlapping I/O signals with differing default values (IRC5). Specific to this controller generation. Severity: Major. Field diagnosis below (French); your robot's own manual remains authoritative.
The I/O signal arg has overlapping bit(s) in the device map with the I/O signal arg . The I/O signal arg is using the default value arg and the I/O signal arg is using the default value arg . I/O signals with overlapping device mapping must have default values with equal values on overlapping bit(s). This I/O signal arg has been rejected, and no functions depending on it will work. 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 Overlapping I/O signals with differing default values, 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.
- Correct the default values for the overlapping I/O signals in the I/O configuration.
Frequently asked · Questions fréquentes
- What does ABB error 71550 mean?
- ABB 71550 (“Overlapping I/O signals with differing default values”): Overlapping I/O signals with differing default values — ABB robot hardware event on the Overlapping I/O signals with differing default values (IRC5). Specific to this controller generation. Severity: Major. Field diagnosis below (French); your…
- How do you troubleshoot ABB error 71550?
- Inspect the Overlapping I/O signals with differing default values, 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.
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 →