IndustrialDriveDataDrive Board & Diagnostic Database
Inverter output / protection

PowerFlex Output Current and Ground-Fault Path

Routes F12 and F13 evidence through output bridge, current sensing, motor cable, motor insulation, grounding/shielding and mechanical load conditions.

Functional path

IGBT output bridge
Current sensors
Output terminals
Motor cable
Motor winding
Protective earth
Mechanical load

Diagnostic signals and checkpoints

F12F13Trip timingMotor connected resultInsulation evidenceFault queue order

Technician notes

  • F12 and F13 often need to be read together when they occur in the same event window.
  • Intermittent ground faults are often environmental or cable-motion related.