When exporting a Motor-CAD model to Maxwell, rotor speed is negative. In EM analysis it is not relevant, but in case of NVH analysis, rotor speed should be positive. However it can be easily change manually by modifying the vbs-script created by Motor-CAD: 1. Search for “Angular Velocity:=”, “-MachineRPM”, and change the value to “MachineRPM” 2. Search for “Winding Group” and change the current phase of windings 2 and 3: (360 – 120) –> (360 + 120) (360 – 240) –> (360 + 240) 3. Search for “Torque Plots”, and change the y-component: “-Moving1.Torque” –> “Moving1.Torque” Finally run the script in Maxwell as usual