ABB Error 20577 — HV ON open
Error / Erreur🇫🇷 HV ON open
ABB — CATALOGUE PRODUCTION
ABB 20577 (“HV ON open”): HV ON open — ABB robot hardware event on the HV ON open (IRC5).
Updated 2026-08-29 · LogrobotLM reference
What it means · Ce que ça veut dire
HV ON open — ABB robot hardware event on the HV ON open (IRC5). Specific to this controller generation. Severity: Major. Field diagnosis below (French); your robot's own manual remains authoritative.
High Voltage (HV) switch on operating panel is opened. 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 HV ON open, 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.
- Give acknowledge with motor ON and switch on the HV key to close the HV interlock chain.
Frequently asked · Questions fréquentes
- What does ABB error 20577 mean?
- ABB 20577 (“HV ON open”): HV ON open — ABB robot hardware event on the HV ON open (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 20577?
- Inspect the HV ON open, 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 →