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FANUC Alarm FXTL-027 — Wrong number of units in prog

FANUC FXTL-027 (“Wrong number of units in prog”): A model program has the wrong number of units vs. First check: Correct the model file and copy it to the controller.

Updated 2026-08-29 · LogrobotLM reference

Description

A model program has the wrong number of units vs. the number specified in the cell data file.

Remedy · Remède

Correct the model file and copy it to the controller.

Frequently asked · Questions fréquentes

What does FANUC alarm FXTL-027 mean?
FANUC FXTL-027 (“Wrong number of units in prog”): A model program has the wrong number of units vs. the number specified in the cell data file.
How do you troubleshoot FANUC alarm FXTL-027?
Correct the model file and copy it to the controller.

Related codes / Codes liés

FXTL-025No unit mapping file: T%dFXTL-026Invalid unit mapping file: T%dFXTL-028Error in program file: T%dFXTL-029Invalid model assignment: T%d

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 →