LogrobotLM — AI fault diagnosis for ABB · KUKA · FANUC robots. It reads your robot backup in your browser (never uploaded) and pinpoints the fault. Try it free →

FANUC Alarm SVGN-099 — Invalid inform signal(Robot).

FANUC SVGN-099 (“Invalid inform signal(Robot).”): The Digital Output assigned for the notification of excessive Robot Tip Wear (amount) is invalid. First check: Check the present setting of the Inform Signal for the Maximum Wear Check (robot) found on the Tip Wear Detection screen (within the Servo Gun SETUP screen).

Updated 2026-09-17 · LogrobotLM reference

Description

The Digital Output assigned for the notification of excessive Robot Tip Wear (amount) is invalid.

Remedy

Check the present setting of the Inform Signal for the Maximum Wear Check (robot) found on the Tip Wear Detection screen (within the Servo Gun SETUP screen). Change the DO number to one that is configured and unused. Check the Digital Output list (I/O-Type-DIGITAL-OUTPUTS) to find an available DO point to use.

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 →