Code SRVO-010: Belt broken
Issue Description & Safety Warning
The Fanuc R-30i Series Robot Controller has triggered a critical Belt broken 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 belt broken robot digital input is asserted. Remedy: 1. If the belt is found to be defective in any way, repair it and then press RESET. 2. When the belt is found to be normal, signal RDI [7] in the robot connection cable might be abnormal. Check the cable. Note: In the robot series whose system variable $PARAM_GROUP.$BELT_ENABLE is TRUE, this alarm is detected.
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 SRVO-010 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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