FANUC Alarm SVGN-040 — Thk:… NOT intol(expect:…).
Manufacturer wording — Thk:%s NOT intol(expect:%s).
The manual prints placeholders; your controller fills them in with the real group, axis or number.
FANUC SVGN-040 (“Thk:… NOT intol(expect:…).”): The Measured part thickness deviates from the specified value more than the Under or Over thickness limit(mm). First check: Check the master position for the gun axis and make sure the tips touch at the zero position (+/- 0.1mm).
Updated 2026-09-17 · LogrobotLM reference
Description
The Measured part thickness deviates from the specified value more than the Under or Over thickness limit(mm). The part might be out-of-tolerance.
Remedy
Check the master position for the gun axis and make sure the tips touch at the zero position (+/- 0.1mm). Confirm that tip wear and gun sag compensation are enabled and that the compensation values are correct. Check the part or re-enter the part thickness in the pressure schedule. Alternatively, increase the Under and Over thickness limits in the Part Thickness check screen found on the Servo Gun General Setup screen. Resume the program, to retry the measurement. Perform thickness check calibration again, if the problem persists.
Related codes
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 →