What is a stepper motor?
A – A stepper motor could be defined as a brushless DC motor with a fixed number of steps or stable positions per revolution when driven by sequential excitation of its windings. There are several types of steppers available with the permanent magnet rotor stepper being one of the most widely used. Performance depends largely upon proper selection and matching of the electronic driver. Steppers can produce an error free ratio of rotational position to signal pulses up to a maximum speed with the ability to start, stop or reverse direction. Beyond this point (known as the slew range) the motor cannot be started stopped or reversed and still maintain pulse and step integrity. PM steppers provide inherent detent torque when not energized, an asset in many applications.
