Code SVGN-098: Invalid inform signal(Gun).
Issue Description & Safety Warning
The Fanuc R-30i Series Robot Controller has triggered a critical Invalid inform signal(Gun). alarm. Immediate attention from a qualified operator or maintenance technician is required to prevent secondary damage to the equipment or spoiled parts during the manufacturing cycle. Always ensure standard safety and LOTO procedures are followed before accessing electrical cabinets.
Official Troubleshooting Steps
Cause: The Digital Output assigned for notification of excessive Gun Tip Wear (amount) is invalid. Remedy: Check the present setting of the Inform Signal for the Maximum Wear Check (gun) 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.
Source: FANUC Robot R-30iA Alarm Code List Operator's Manual
Last reviewed: 2026-07-01 · Verified against the manufacturer’s official documentation.
About Fanuc R-30i Series Robot Controller Alarms
Fanuc controllers include extensive self-diagnostics that flag or halt the machine when a fault is detected. Error code SVGN-098 on the R-30i Series Robot Controller identifies one specific fault condition — its documented cause and the official corrective steps are listed above, sourced from Fanuc's service documentation. Always confirm against the manual for your exact machine configuration and follow LOTO procedures before servicing.
Complete Alarm List: 6553 Fanuc R-30i Series Robot Controller codes.
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