Code TCPP-019: Speed Ovrd Mode at line:%d^5
Issue Description & Safety Warning
The Fanuc R-30i Series Robot Controller has triggered a critical Speed Ovrd Mode at line:%d^5 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: A speed override occurred beginning with this line causing an error condition which makes further speed prediction invalid. The speed prediction task has therefore entered an error handling mode within which it discontinues speed prediction but provides the actual robot speed as an output reference. Remedy: Normal prediction will resume automatically once the speed override has propagated through the system. No further action is required. The user should avoid this during production program execution and should be aware that it may invalidate live application testing since neither the robot nor the speed prediction task are performing as programmed.
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 TCPP-019 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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