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Inverter output / motor path

Schneider ATV61 / ATV71 Output Motor and Short-Circuit Path

Routes OCF and SCF evidence through motor cable, motor insulation, output terminals, optional output devices, IGBT bridge, current detection and gate-driver integrity.

Functional path

PWM output bridge
Output terminals
Motor cable
Motor winding
Mechanical load
Current feedback
Gate driver

Diagnostic signals and checkpoints

Trip timingMotor connected/disconnected resultInsulation test resultLoad conditionPrevious module repair

Technician notes

  • Instant trips are treated differently from ramp/load trips.
  • A replacement power module must not be powered until driver evidence is credible.