Code SRVO-054: DSM memory error (DSM:%d)
Issue Description & Safety Warning
The Fanuc R-30i Series Robot Controller has triggered a critical DSM memory error (DSM:%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: An access to the servo module memory failed. Note: Before you continue to the next step, perform a complete controller backup to save all of your programs and settings from memory for this robot. After you complete the next step, restore the saved data to the new main board if the memory has been lost. Otherwise, you could injure personnel, damage equipment, or lose data. Refer to the application-specific Operator's Manual for information on how to back up controller memory. Remedy: Replace the axis control card on the main board.
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-054 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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