FANUC Alarm SPOT-044 — WARN Stud Welder Arc Voltage Fault
FANUC SPOT-044 (“WARN Stud Welder Arc Voltage Fault”): This fault is signaled by the Stud Weld controller if the voltage sensor reports too little arc voltage during the weld process. First check: The stud checker will automaticly verify the quality of the weld.
Updated 2026-09-17 · LogrobotLM reference
Description
This fault is signaled by the Stud Weld controller if the voltage sensor reports too little arc voltage during the weld process. May result in a poor quality weld.
Remedy
The stud checker will automaticly verify the quality of the weld. If bad, check the position of the gun at the weld spot to insure that the tip is the correct distance.
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 →