LogrobotLM

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FANUC Alarm LNTK-005 — STOP Illegal schedule number

FANUC LNTK-005 (“STOP Illegal schedule number”): An invalid Line Track schedule (track or frame) number was used within a program instruction (eg. First check: Check all schedule numbers (TRK[] or FRAME usages) used within the specified program to verify that they are within the allowable range specified for the $LNSCH[] system variable.

Updated 2026-09-17 · LogrobotLM reference

Description

An invalid Line Track schedule (track or frame) number was used within a program instruction (eg. TRK[59]) or program header data (eg. FRAME = 59).

Remedy

Check all schedule numbers (TRK[] or FRAME usages) used within the specified program to verify that they are within the allowable range specified for the $LNSCH[] system variable.

Related codes

LNTK-003STOP Error allocating data memoryLNTK-004STOP No system variablesLNTK-006STOP Illegal tracking typeLNTK-007STOP Illegal encoder 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 →