Technical Parameters of Stepper Motor and Asynchronous Servo Motor
Thanks to recent advances in technology, there are now more types of motors available for use in a variety of applications. Stepper motors and asynchronous servo motors are the two types used most often. They are used in applications from manufacturing to robotics. In this article, we will take a look at the technical parameters of both stepper and servo motors and compare them.
Stepper motors are electric motors that move a predetermined number of steps in order to produce a desired output. The rotation speed, torque output, and step resolution can be electronically adjusted and configured to meet the application’s requirements.
The main parameters to consider when looking at the performance of a stepper motor are motor type, step angle, and rated power. The motor type, also known as the motor family, is the most important parameter when selecting a stepper motor and is a measure of its performance and accuracy. Typically, stepper motors are classified as four, six, eight, or twelve-wire motors. Step angle is the amount of rotation for each step and is expressed in degrees and minutes. The rated power of a stepper motor is the maximum torque and speed that it can generate.
Asynchronous servo motors, also known as AC servo motors, are capable of producing higher torque and speeds than stepper motors, but have the disadvantage of being more expensive and less accurate. Asynchronous servo motors are typically rated in terms of peak current and torque. They also have other parameters such as inductance, winding resistance, and speed regulation which can be used to fine-tune the motor’s performance.
When comparing the two types of motors, stepper motors are largely preferred due to their low cost and easy implementation in an application. Stepper motors offer great precision and fine-tuned control of the output, making them ideal for applications where highly precise output is required.
On the other hand, asynchronous servo motors have higher torque, better speed control, and extreme accuracy, making them better suited for applications where high torque and speed are essential and where accuracy is paramount.
In conclusion, both stepper and asynchronous servo motors have their advantages and disadvantages. The right motor will depend largely on the application and the technical requirements, so it is important to understand each type of motor, their strengths, and their weaknesses in order to make an informed decision.
