LogrobotLM

LogrobotLM — AI fault diagnosis for ABB · KUKA · FANUC robots. It reads your robot backup in your browser (never uploaded) and pinpoints the fault. Try it free →

FANUC Alarm LNTK-017 — STOP Invalid input pointer

FANUC LNTK-017 (“STOP Invalid input pointer”): An invalid internal position input pointer was specified. First check: Perform a COLD start of the system.

Updated 2026-09-17 · LogrobotLM reference

Description

An invalid internal position input pointer was specified.

Remedy

Perform a COLD start of the system. (Cycle power.) Notify FANUC Robotics if problem persists.

Related codes

LNTK-015STOP Invalid encoder trigger valueLNTK-016STOP Invalid input timeLNTK-018STOP Invalid teach distanceLNTK-019STOP Invalid scale factor

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 →