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FANUC Alarm LNTK-019 — STOP Invalid scale factor

FANUC LNTK-019 (“STOP Invalid scale factor”): An invalid or uninitialized scale factor value (specified by $LNSCH[i].$SCALE, where 'i' is the FRAME number used within the DETAIL screen for the specified program) was found. First check: Make sure that this value is properly set prior to either teaching path positions, or issuing programmed robot motion instructions.

Updated 2026-09-17 · LogrobotLM reference

Description

An invalid or uninitialized scale factor value (specified by $LNSCH[i].$SCALE, where 'i' is the FRAME number used within the DETAIL screen for the specified program) was found.

Remedy

Make sure that this value is properly set prior to either teaching path positions, or issuing programmed robot motion instructions. NOTE: This value may NOT be equal to 0.0

Related codes

LNTK-017STOP Invalid input pointerLNTK-018STOP Invalid teach distanceLNTK-020STOP Invalid extreme positionLNTK-021STOP Invalid track axis number

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 →