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FANUC Alarm HOST-302 — CNC doesn't Connected

FANUC HOST-302 (“CNC doesn't Connected”): The CNC is not connected. First check: Connect the CNC to the robot controller.

Updated 2026-08-29 · LogrobotLM reference

Description

The CNC is not connected.

Remedy · Remède

Connect the CNC to the robot controller.

Frequently asked · Questions fréquentes

What does FANUC alarm HOST-302 mean?
FANUC HOST-302 (“CNC doesn't Connected”): The CNC is not connected.
How do you troubleshoot FANUC alarm HOST-302?
Connect the CNC to the robot controller.

Related codes / Codes liés

HOST-300Can't connect to CNC(%s)HOST-301Not Connected(Tag=%s)HOST-303Not supported CNCHOST-304Cycle power to change CNC No.

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 →