Code P11-CONV-11245: C2 DC Bus Short
Issue Description & Safety Warning
The Allen-Bradley PowerFlex 750 Drive has triggered a critical C2 DC Bus Short 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: Non-Reset Fault Coast The peak current has exceeded 150 % of the converter rating during the precharge sequence. Peak charging current is normally limited to 50 % of the converter rating. • Check for a DC bus short, internally and externally. • Verify that the wiring harness to P10 on the converter gate firing board is connected and not damaged. Replace the harness as necessary. • Verify that the capacitor bank is properly installed and connected. • Check for an IGBT short and replace as necessary.
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-11245 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.
Have a better solution?
Help the industrial community by sharing your repair experience for code P11-CONV-11245.
Need a searchable reference for more Allen-Bradley PowerFlex 750 Drive manuals?
We structure equipment manuals into searchable code, title, cause, solution, safety note, and source-reference data. Send a PDF and example searched codes when you need public pages, private search, or structured exports.
Space reserved for Google AdSense / Industrial Affiliate Links
Monetization target for 2026