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FANUC Alarm LNTK-029 — STOP LNTK stack overflow

FANUC LNTK-029 (“STOP LNTK stack overflow”): Too many tracking subprocesses are present. First check: Check to ensure sub-processes are not being called erroneously.

Updated 2026-09-17 · LogrobotLM reference

Description

Too many tracking subprocesses are present. There is a limit to the number of tracking

Remedy

Check to ensure sub-processes are not being called erroneously. Consider rewriting procedures so that fewer sub-processes are used.

Related codes

LNTK-027STOP Invalid data on LNTK stackLNTK-028STOP LNTK stack underflowLNTK-030STOP Stack / header mismatchLNTK-031STOP UFRAME must be zero

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 →