In specific applications, when the terminal load is stable, the action is simple, and the operation is basically at low speed, it is most suitable to choose a stepper motor with low cost and easy control; but when the terminal load fluctuation range is large, the action is simple, Servo Motor and the operation is basically at low speed, Servo Motor If you choose a stepper motor, you will face a series of troubles, because the stepper motor driven by the square wave is difficult to eliminate vibration and noise, and will be out of step or overshoot due to torque fluctuations.
In fact, when the terminal load fluctuation range is large, even if it is basically in the low-speed running state, the servo motor should be selected, because after considering the factors of efficiency improvement, energy saving, control accuracy improvement, system stability and other factors,Servo Motor you will find Selecting a servo motor with a higher price increases the overall cost. But what should be paid attention to when replacing the stepping motor in the product with a servo motor?
In order to ensure that the control system does not change much, the digital servo system should be used, and the original pulse control method can still be used; because the servo motor has a certain overload capacity, when selecting the servo motor, you can empirically follow the stepper motor used Refer to 1/3 of the output torque to determine the rated torque of the servo motor; the rated speed of the servo motor is much higher than that of the stepper motor. In order to give full play to the performance of the servo motor, Servo Motor it is best to add a deceleration device to allow the servo motor to work at Close to the rated speed, this can also choose a motor with a smaller power to reduce costs.
