Code SP9011: SSPA:11 OVERVOLT POWER CIRCUIT
Issue Description & Safety Warning
The Fanuc 0i-D / 0i Mate-D Alarm List has triggered a critical SSPA:11 OVERVOLT POWER CIRCUIT 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
Section: Serial spindle alarm list 11 1 Check the selected Power Overvoltage of the DC link section Supply (PS). of the Power Supply (PS) was 2 Check the input power detected. (Power Supply (PS) alarm voltage and change in indication: 7) power during motor Power Supply (PS) selection error. deceleration. (The maximum output specification If the voltage exceeds 253 of the Power Supply (PS) is VAC (for the 200-V system) exceeded.) or 530 VAC (for the 400-V system), improve the power supply impedance.
Source: Fanuc B-64305EN/03 Appendix A Alarm List
Last reviewed: 2026-07-01 · Verified against the manufacturer’s official documentation.
About Fanuc 0i-D / 0i Mate-D Alarm List Alarms
Fanuc controllers include extensive self-diagnostics that flag or halt the machine when a fault is detected. Error code SP9011 on the 0i-D / 0i Mate-D Alarm List 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: 769 Fanuc 0i-D / 0i Mate-D Alarm List codes.
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