Defining the Rotor Data for a Brushless PMDC Motor

The rotor consists of copper bars in which current is induced by the magnetic fields produced by the stator windings. In the project tree, double-click Machine > Rotor and Machine > Rotor > Pole to define the rotor and the pole.

To define general rotor data:

  1. To open the Rotor Data Properties window, double-click the Machine > Rotor entry in the project tree on the desktop. (You can also enter values in the Properties section of the desktop without opening a separate window.)
  2. Enter the outer diameter of the rotor in the Outer Diameter field.
  3. Enter the inner diameter of the rotor in the Inner Diameter field.
  4. Enter the length of the rotor core in the Length field.
  5. Select a Steel Type for the rotor core:
    1. Click the button for Steel Type.
      The Select Definition window appears.
    2. Select a steel type from the list, or define a new steel type.
    3. Click OK to close the Select Definition window and return to the Properties window.
  6. Enter the stacking factor for the rotor core in the Stacking Factor field.
  7. Select a Pole Type:
    1. Click the button.
      The Select Pole Type window appears.
    2. Click a button to select the desired pole type (1, 2, 3, 4, or 5).
      3. Note: When you place the mouse cursor over a pole type, an outline of the selected circuit type appears.
    3. Click OK to close the Select Pole Type window and return to the Properties window.
  8. Click OK to close the Properties window.