Code CVIS-331: The search window is too small or set to the outside of the image.
Issue Description & Safety Warning
The Fanuc R-30i Series Robot Controller has triggered a critical The search window is too small or set to the outside of the image. 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 specified search window is too small or set to the outside of the image. Remedy: When the search window is too small, set the search area larger. When the search window is set to the outside of the image, confirm that parent locator tool finds the model correctly and change the search window if necessary.
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 CVIS-331 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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