FANUC Alarm FXTL-155 — Invalid step number.
FANUC FXTL-155 (“Invalid step number.”): The Step number is not valid. First check: Perform a data verify first, then select the valid step number.
Updated 2026-08-29 · LogrobotLM reference
Description
The Step number is not valid.
Remedy · Remède
Perform a data verify first, then select the valid step number.
Frequently asked · Questions fréquentes
- What does FANUC alarm FXTL-155 mean?
- FANUC FXTL-155 (“Invalid step number.”): The Step number is not valid.
- How do you troubleshoot FANUC alarm FXTL-155?
- Perform a data verify first, then select the valid step number.
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 →