One rotation of the servo motor is usually 360 degrees. However, in actual control, the rotation angle of the servo motor can be very fine, depending on the resolution of the encoder. For example, a servo motor with a standard 2500-line encoder has a pulse equivalent of 360°/10000=0.036°, which means that the motor can receive 10,000 pulses to complete one rotation.
- Basic working principle of servo motor
A servo motor is a motor that can precisely control angle and speed. It adjusts the position and speed of the motor in real time through an internal feedback system to achieve the preset goal. The key to this precise control lies in the servo motor’s encoder, which measures the motor’s actual position and speed and feeds this information back to the controller. The controller adjusts the motor’s input signal based on feedback information and preset targets to achieve high-precision control.
- Rotation angle control of servo motor
The rotation angle of the servo motor is controlled by pulse signals. Each pulse signal corresponds to a tiny angle of motor rotation, which is called the pulse equivalent. The size of the pulse equivalent depends on the resolution of the encoder. The higher the resolution, the smaller the pulse equivalent, and the higher the rotation accuracy of the motor.
For example, a servo motor with a standard 2500-line encoder uses quadruple frequency technology internally, increasing the number of pulses to 10,000. This means that the motor needs to receive 10,000 pulses to rotate once, and the angle corresponding to each pulse is 360°/10000=0.036°. Therefore, by controlling the number of pulses, the rotation angle of the servo motor can be controlled very accurately.
- Advantages of servo motors in practical applications
The high-precision rotation control of servo motors makes them widely used in industrial automation, robot control and other fields. In these applications, precise rotation angles are key to ensuring equipment performance and operating accuracy. By using servo motors, complex motion trajectories and precise positioning control can be achieved, thereby improving production efficiency and product quality.
- Application scenarios of servo motors
Because servo motors have precise control capabilities and high motion performance, they are widely used in various industrial automation and robotics fields. For example, in CNC machine tools, servo motors can accurately control the movement trajectory and speed of the tool to achieve high-precision machining. In the field of robots, servo motors are responsible for driving the joint movements of robots, enabling them to complete various complex actions and tasks.
To sum up, the number of degrees that a servo motor rotates at one time is usually 360 degrees, but different rotation angles and speeds can be achieved through programming control. Understanding the rotation range and influencing factors of servo motors will help us better apply them to meet the needs of actual work. In the future, with the continuous advancement of technology and the in-depth expansion of applications, servo motors will play an important role in more fields.
