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 2026-09-17 · LogrobotLM reference

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. How this reference is built →