FANUC Alarm FXTL-012 — Invalid sensor slot
FANUC FXTL-012 (“Invalid sensor slot”): An invalid sensor slot was specified in an OFFSET line in a model file. First check: Correct the model file and copy it to the controller.
Updated 2026-09-17 · LogrobotLM reference
Description
An invalid sensor slot was specified in an OFFSET line in a model file.
Remedy
Correct the model file and copy it to the controller. Slot numbers must be in the range of 1 - 20.
Related codes
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 →