Code PRIO-193: AB-RIO Failed to Load FW
Issue Description & Safety Warning
The Fanuc R-30i Series Robot Controller has triggered a critical AB-RIO Failed to Load FW 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: There was a problem initializing the AB-RIO hardware. The PRIO-191 alarm code will include a cause code with the reason. Remedy: z No Board : check that board is installed and dip switches are set properly. z Failed to load/start/clear FW (firmware) : firmware file is missing or corrupt or possibly a problem with the hardware.
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 PRIO-193 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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