This component contains a model of a two-phase stepper motor with two windings per phase. This winding configuration is often called bifilar. The winding connections are fully exposed and therefore the motor can be operated in both bipolar and unipolar drive configurations.
The model is suitable for representing permanent magnet and hybrid (permanent magnet combined with variable reluctance) stepper motors, but not pure variable reluctance stepper motors.
| Connection | Description |
|---|---|
| A1+, A1-, A2+, A2-, B1+, B1-, B2+, B2- | The stator connections, as shown in the configuration of the machine’s electrical system. |
| Ea, Eb | Back-EMF voltage connections. |
| omega (shaft coming out of machine) | Mechanical connection to the shaft. The voltage represents the mechanical angular speed in rad/s. You can attach mechanical loads, sensors, or motion controllers to the motor through this pin. An external load may also be applied using appropriately connected voltage/current sources. |
| θ (theta) | Shaft angle. |
| Te | Measurement pin for the electromagnetic torque in N•m. |
This component should only be used in transient-type simulations where Initial conditions are set to User defined.
See Stepper 2 phase 2 winding model for simulation and parameter information.