Code PRIO-150: CNET Card Init Error Bd %d
Issue Description & Safety Warning
The Fanuc R-30i Series Robot Controller has triggered a critical CNET Card Init Error Bd %d 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 ControlNet card failed to initialize. Possible problems can be the following. * The board system variable for firmware is invalid. Correct the value or restore the system variables. * The board firmware is not supported. Restore system variables. If necessary reload the controller. * The card or the motherboard is defective Remedy: Look at possible causes. Remedies are mentioned therein.
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-150 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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