FANUC Alarm LNTK-041 — Encoder is moved in T1 mode.
FANUC LNTK-041 (“Encoder is moved in T1 mode.”): The 250 mm/s speed limitation of T1 mode cannot be guaranteed for tracking motion. First check: - z To execute tracking motion in T1 mode, make sure the conveyor is stopped.
Updated 2026-09-17 · LogrobotLM reference
Description
The 250 mm/s speed limitation of T1 mode cannot be guaranteed for tracking motion. Therefore, robot motion is not allowed in T1 mode as long as the conveyor is moving.
Remedy
- z To execute tracking motion in T1 mode, make sure the conveyor is stopped. - z To execute tracking motion with a moving conveyor, put the controller in T2 or AUTO mode.
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 →