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 PICK-039 — Invalid $LNSCH number

FANUC PICK-039 (“Invalid $LNSCH number”): An invalid $LNSCH number was specified. First check: Change the line tracking schedule number to a validate one.

Updated 2026-09-17 · LogrobotLM reference

Description

An invalid $LNSCH number was specified.

Remedy

Change the line tracking schedule number to a validate one.

Related codes

PICK-037Robot is not calibratedPICK-038DIN port is ONPICK-040Not all positions are recordedPICK-041Recorded points are too close

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 →