Servo motorlar step motorların yerini alabilir mi? Dikkat edilmesi gereken konular

Many friends often ask: can servo motors replace stepper motors? In fact, this mainly depends on the specific needs. Stepper motor enough, try to use stepper motor, relatively speaking, servo motor, the price is still much cheaper.

In practical applications, when the end load is stable, the action is simple, and the operation is basically at low speed, it is suitable to choose a low-cost, easy-to-control stepper motor. However, when the end load fluctuation range is large and the action is simple, it is difficult to eliminate the vibration of the stepper motor driven by square wave and noise if the stepper motor is operated basically at low speed, and a series of problems will be encountered in practical applications because the torque fluctuation will cause the stepper motor to lose step or overshoot.

In fact, when the end load fluctuation range is large, even if the basic low-speed operation, but also to choose servo motors, because after taking into account factors such as improving efficiency, energy saving, improving control accuracy, improving system stability, etc., found that the higher price of servo motors will increase the overall cost. But what do you need to pay attention to with servo motors instead of stepper motors?

1. To ensure that the control system does not change too much, a digital servo system should be selected, and the original pulse control method can still be used.

2. Since the servo motor has a certain overload capacity, the rated torque of the servo motor can be determined in accordance with 1/3 of the output torque of the stepper motor, and the rated speed of the servo motor should be much higher than that of the stepper motor. In order to give full play to the performance of the servo motor, a reduction device should be installed to make the servo motor work at the rated speed. In this way, a motor with lower power can also be selected to reduce cost.

As you can see, stepper motors and servo motors have their own good range of use, it is mainly up to you! The situation that the stepper motor can’t handle, must use the servo motor.

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