One of the advantages of stepper motor is good control performance, starting, stopping, and flipping are completed within a few pulses, and any movement mode will not lose a step when running in a certain frequency range. Therefore, stepper motors are widely used in CNC machine tools.
1. When locking the position, the motor no longer consumes power: the unique "static torque" (also known as "holding torque", "positioning torque", etc.) of the stepper motor, when the motor stops in a certain position, it has a certain locking torque. Although the DC motor can also lock the position through the drive, the motor still consumes power when locked 2. Small size and long life: The life of the stepper motor usually depends on the bearing life, which can reach tens of thousands to tens of thousands of hours, and the output torque of the stepper motor is larger than that of the same size DC motor.
3. Low cost and simple drive: Because it is open-loop control, feedback devices such as encoders are eliminated, so it not only simplifies the system composition, but also effectively reduces costs.