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FANUC Alarm SPOT-037 — WARN No gun contactors defined

FANUC SPOT-037 (“WARN No gun contactors defined”): The GUN CONTACTOR TPE instruction was programmed, but no gun contactors are defined. First check: Gun contactors are defined at controlled start, from the SETUP APPLICATION option under the FCTN key.

Updated 2026-09-17 · LogrobotLM reference

Description

The GUN CONTACTOR TPE instruction was programmed, but no gun contactors are defined.

Remedy

Gun contactors are defined at controlled start, from the SETUP APPLICATION option under the FCTN key. If extra gun contactors are defined at controlled start, then the Equipment I/O menu will allow you to define the I/O for the gun contactor.

Related codes

SPOT-035PAUSE Invalid equipment (… defined)SPOT-036PAUSE Invalid weld controller (… defined)SPOT-038WARN Stud feeders lowSPOT-039PAUSE System air pressure below 85psi

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 →