FANUC Alarm PRIO-622 — PNIO(C) controller is not running
FANUC PRIO-622 (“PNIO(C) controller is not running”): The start up of I/O Controller has not completed or was terminated by an error. First check: Disable the I/O Controller if the I/O Controller function is not used.
Updated 2026-08-29 · LogrobotLM reference
Description
The start up of I/O Controller has not completed or was terminated by an error.
Remedy · Remède
Disable the I/O Controller if the I/O Controller function is not used. If the I/O Controller function is used, check if there are any errors related to the I/O Controller. This error will be eliminated when the setting of I/O Controller is correct and communication to the I/O Device is established.
Frequently asked · Questions fréquentes
- What does FANUC alarm PRIO-622 mean?
- FANUC PRIO-622 (“PNIO(C) controller is not running”): The start up of I/O Controller has not completed or was terminated by an error.
- How do you troubleshoot FANUC alarm PRIO-622?
- Disable the I/O Controller if the I/O Controller function is not used. If the I/O Controller function is used, check if there are any errors related to the I/O Controller. This error will be eliminated when the setting of I/O Controller is correct and communication to the I/O Device is established.
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 →