Estun servo motor - how to select servo motor (1-5)

Create Date: 2024-8-30 12:03:23|Source: Eston/ESTUN

1. How to choose the servo motor and stepper motor correctly?

Mainly depends on the specific application, simply put, it is necessary to determine: the nature of the load (such as horizontal or vertical load, etc.), torque, inertia, speed, accuracy, acceleration and deceleration and other requirements, upper control requirements (such as port interface and communication requirements), the main control mode is position, torque or speed. Whether the power supply is DC or AC power, or battery powered, voltage range. This is used to determine the type of motor and the associated drive or controller.

2. Stepper motor or servo motor system?

Each has its own characteristics, depending on the specific application.

3. How to use stepper motor driver?

Depending on the current of the motor, a driver greater than or equal to this current is used. If low vibration or high accuracy is required, a segmented drive can be used. For high-torque motors, use high-voltage drives as much as possible to obtain good high-speed performance.

What is the difference between 4, 2-phase and 5-phase stepper motors, and how to choose?

The cost of the 2-phase motor is low, but the vibration is greater at low speeds, and the torque drops faster at high speeds. The 5-phase motor has less vibration and good high-speed performance, which is 30-50% higher than the speed of the 2-phase motor, and can replace the servo motor in some occasions.

5. When to choose a DC servo system and what is the difference between it and AC servo?

DC servo motors are divided into brushed and brushless motors. The brush motor has low cost, simple structure, large starting torque, wide speed regulation range, easy control, and needs maintenance, but it is easy to maintain (change the carbon brush), which produces electromagnetic interference and has requirements for the environment. Therefore, it can be used in cost-sensitive general industrial and civil applications.

The brushless motor is small in size, light in weight, large in output, fast in response, high in speed, small in inertia, smooth in rotation and stable in torque. The control is complex, easy to achieve intelligence, and its electronic commutation mode is flexible, which can be square wave commutation or sine wave commutation. The motor is maintenance-free, has high efficiency, low operating temperature, low electromagnetic radiation, long life, and can be used in various environments.

AC servo motor is also a brushless motor, divided into synchronous and asynchronous motors, synchronous motors are generally used in motion control at present, its power range is large, can do a lot of power. Large inertia, low maximum rotational speed, and rapid decrease as power increases. Therefore, it is suitable for applications with low-speed and stable operation.

Estun servo motor - how to select servo motor (1-5)

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