LogrobotLM

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FANUC Alarm VISN-120 — WARN Invalid encoder setting

FANUC VISN-120 (“WARN Invalid encoder setting”): The setting data for pulse encoder is invalid, so the system can not read pulse count of encorder. First check: Check the setting data in encorder setting screen and tracking schedule screen.

Updated 2026-08-29 · LogrobotLM reference

Description

The setting data for pulse encoder is invalid, so the system can not read pulse count of encorder.

Remedy · Remède

Check the setting data in encorder setting screen and tracking schedule screen.

Frequently asked · Questions fréquentes

What does FANUC alarm VISN-120 mean?
FANUC VISN-120 (“WARN Invalid encoder setting”): The setting data for pulse encoder is invalid, so the system can not read pulse count of encorder.
How do you troubleshoot FANUC alarm VISN-120?
Check the setting data in encorder setting screen and tracking schedule screen.

Related codes / Codes liés

VISN-118WARN Adjusting gains and retryingVISN-119WARN No tracking schedule dataVISN-121WARN Invalid Find Next operationVISN-122WARN Invalid vision tool referenced

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 →