Code P11-CONV-11263: C2 Fault Q Full
Issue Description & Safety Warning
The Allen-Bradley PowerFlex 750 Drive has triggered a critical C2 Fault Q Full 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
Type: Resettable Fault Coast The fault queue is full. There are at least three other faults in the queue. • Troubleshooting and clearing the existing faults make room for additional faults in the queue (if any). Precharge (Port 11) Faults and Alarms (Frame 8 and Larger) alarm, the action that is taken when the drive faults, the parameter that is used to configure the fault or alarm (if applicable), and a description and action (where the Auto Reset (Auto Reset Run/Restart) and Auto Clear (Auto Reset Clear) larger.
Source: Allen-Bradley PowerFlex 750-Series AC Drives Programming Manual (750-PM001)
Last reviewed: 2026-07-01 · Verified against the manufacturer’s official documentation.
About Allen-Bradley PowerFlex 750 Drive Alarms
Allen-Bradley controllers include extensive self-diagnostics that flag or halt the machine when a fault is detected. Error code P11-CONV-11263 on the PowerFlex 750 Drive identifies one specific fault condition — its documented cause and the official corrective steps are listed above, sourced from Allen-Bradley's service documentation. Always confirm against the manual for your exact machine configuration and follow LOTO procedures before servicing.
Complete Alarm List: 663 Allen-Bradley PowerFlex 750 Drive codes.
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