What is the difference and difference between stepper motor and servo motor? Which motor is better?

Stepper motors and servo motors are commonly used in industrial production of motor products, in many places the two can be common, but also with the use of, so what are the differences and differences between stepper motors and servo motors? Vacuz give you an introduction to it!

The differences between stepper motor and servo motor are mainly reflected in the different control accuracy, moment frequency characteristics, overload capacity, operating performance, and speed response performance.

AC servo system in some aspects of performance, than the stepper motor is an advantage, but the stepper motor also has its own many advantages, so it will not be completely replaced.

1, AC servo motors are slightly more accurate than stepper motors, but in most cases, the resolution of stepper motors is much higher than the resolution required by the machinery;

2, although the moment frequency characteristics are different, but not all equipment applications, the need for high-speed stepper motor low speed and large torque, usually suitable for the use of stepper motors within 700rpm, higher speed suitable for the use of AC servo motors;

3, AC servo has a strong overload capacity, but some stepper motor drivers also have a certain overload capacity, can make a cost-effective choice between the overload capacity and maintain sufficient torque margin;

4, speed response frequency is different, is another important factor in the selection of stepper motors and AC servo motors. High response frequency is the advantage of AC servo motor, select the type should pay attention to this feature.

5, as mentioned above, the accuracy of AC servo motors is unknown to most users, AC servo motors will repeatedly align the position at high resolution and low speed, producing micro-jitter in some of the more accurate equipment. After special treatment of the stepper motor can indeed solve this problem, because the stepper motor will not repeatedly to the teeth.

6, in some indexing control applications, the stepper motor turns to the angle stop, the locking torque is large, and the position of the AC servo in the loss of external forces to recover, may cause processing errors.

What are the differences and differences between stepper motors and servo motors? Which motor is better? The above has done a simple explanation, I hope this knowledge can help you!

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