Code SRVO-160: Panel/External E-stop
Issue Description & Safety Warning
The Fanuc R-30i Series Robot Controller has triggered a critical Panel/External E-stop 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 emergency stop button on the operator panel was pressed, or the external emergency stop function was activated. EMGIN1 and EMGINC are not strapped to each other. Or, EMGIN2 and EMGINC are not strapped to each other. Remedy: Release the emergency stop button. If the external emergency stop function has been activated, remove the cause. If no cause can be found, and no jumper is installed between EMGIN1 and EMGINC or between EMGIN2 and EMGINC on the terminal block of the emergency stop control printed circuit board, but cables are connected to the terminals, check the cables.
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-160 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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