Code P10-10124: I1 NTC Open
Issue Description & Safety Warning
The Allen-Bradley PowerFlex 750 Drive has triggered a critical I1 NTC Open 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 An NTC open condition has occurred. • Check the ribbon cable that runs between the backplane board and gate driver board for loose connections or damage. The capacitor bank must be removed to check this cable. • If the drive is in cold conditions, raise the ambient temperature. • Check the power-layer interface board testpoints for the individual phase NTC temperatures to determine which is open. • Reseat the power layer interface board. If this problem persists, replace the power layer interface board.
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 P10-10124 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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