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FANUC Alarm CPMO-063 — MAINCHN is NULL (G: %d^2)

FANUC CPMO-063 (“MAINCHN is NULL (G: %d^2)”): Internal Error: Main Channel is NULL First check: Perform a Cold start:

Updated 2026-08-29 · LogrobotLM reference

Description

Internal Error: Main Channel is NULL

Remedy · Remède

Perform a Cold start:

Frequently asked · Questions fréquentes

What does FANUC alarm CPMO-063 mean?
FANUC CPMO-063 (“MAINCHN is NULL (G: %d^2)”): Internal Error: Main Channel is NULL
How do you troubleshoot FANUC alarm CPMO-063?
Perform a Cold start:

Related codes / Codes liés

CPMO-061Cycle power: TFs (G: %d^2)CPMO-062Cycle power: RSINFOs (G: %d^2)CPMO-064MAINCHN is Unknown (G: %d^2)CPMO-065Need Abort:GmSTOPPOS MisSyn

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 →