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FANUC Alarm PAIN-191 — WARN Invalid gun selection

FANUC PAIN-191 (“WARN Invalid gun selection”): The argument to the GUN SELECT instruction is outside of the range defined in the SETUP screen. First check: Modify the offending GUN SELECT argument to be within the valid range.

Updated 2026-09-17 · LogrobotLM reference

Description

The argument to the GUN SELECT instruction is outside of the range defined in the SETUP screen.

Remedy

Modify the offending GUN SELECT argument to be within the valid range.

Related codes

PAIN-185WARN Color … data access errorPAIN-190WARN Invalid instruction argumentPAIN-192WARN Preplan instruction twicePAIN-193WARN Invalid preset index

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