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FANUC Alarm SPOT-094 — PAUSE BU OPEN DETECT is on …-gun 1

Manufacturer wording — PAUSE BU OPEN DETECT is on %s-gun 1
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC SPOT-094 (“PAUSE BU OPEN DETECT is on …-gun 1”): The GUN OPEN DETECT input is high at the same time that the GUN CLOSE DETECT input is to be checked. First check: Check the sensors to verify that the inputs are being properly turned on and off.

Updated 2026-09-17 · LogrobotLM reference

Description

The GUN OPEN DETECT input is high at the same time that the GUN CLOSE DETECT input is to be checked.

Remedy

Check the sensors to verify that the inputs are being properly turned on and off.

Related codes

SPOT-092PAUSE GUN OPEN DETECT input is on …-gun 1SPOT-093PAUSE BU CLOSE DETECT is on …-gun 1SPOT-095PAUSE Bad pressure (P=…)-gun 1SPOT-096PAUSE Reset welder timeout-gun 1

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 →