Servo control unit

The function of servo controller in motion control system is to make the controlled device obtain changes related to its position, velocity, displacement and angular velocity. Changes in position-related parameters can be accurately detected by the control device. The relationship between its existence and the servo device: when the servo device has motion parameters, the movement and position of the servo device feedback through the control signal; The servo device responds to the control signal when the motion parameters change. Therefore, a controller installed in the controller can make the load to minimize or minimize the delay state to achieve real-time control of the servo drive system to the motion state (speed) of the controller is the server control system. The Booster Process is a control technology that changes the transformation (or encoding) of electrical signals in a mechanical device or other motion system to generate mechanical motion, change the position, or speed of mechanical motion. It mainly includes pulse control technology and electromagnetic drive technology, among which the electromagnetic drive technology has been decades. Solenoid valve drive technology was invented in the 1970s and has been widely used in industry. At present, one of the most widely used principles is to generate electromagnetic induction principle to supply power to motor or servo equipment. The servo controller has a similar part with the driver, such as the input and output circuit composition; The servo controller contains a number of microprocessor unit (MCU) and memory control unit and other micro devices. These microprocessor converts the signal into pulse form and sends it to the driver signal module to control the output device, so that the servo system can always be in the control state in the process of movement. In the control system, the servo controller and other electrical equipment through the communication between the microprocessor and the computer, to achieve the motor function movement to achieve the state and control action. The servo system (Pad manager) can detect the position and speed of the motor through the signal, and then change the speed of the servo motor, so as to realize the synchronous control of the motor output and the movement track of the machine tool rotating shaft, so as to realize the servo control. With the development pace of industrial automation is getting faster and faster, a variety of automatic control equipment has emerged as The Times require. When the equipment produces mechanical movement, these movements also need to be controlled to achieve the corresponding position (speed), displacement changes, and position Angle compensation and other action requirements, so as to achieve a variety of motion process control requirements. The servo device controls between the input device and the output device

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Xiamen Xiongba Electronic Commerce Co. LTD

FROM：Mr. Wei

E-Mail：2322181769@qq.com                        

TEL/WeChat:15396237607

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(1) Feedback of position signal

The feedback of position signal is also called positioning signal. It is closely related to the accuracy of the server. After determining the servo positioning parts, it is necessary to give some compensation to the positioning parts of the servo driver to ensure the accurate positioning accuracy during the pose adjustment. There is a certain feedback between the position module and the servo part, and the control signal can also realize the feedback of the control signal within a certain range. In general, when the pulse width is 100~300 bps, the modulation frequency is 200 kHz and the amplitude is large, the server with PWM modem can be selected. Relatively speaking, its modulation rate is low, but the amplitude is large. The characteristic of the position module is that it can maintain very high speed and speed when the pulse width is 100 bps and the modulation frequency is 200 kHz. At the same time, the feedback system has no clock synchronization, so it can guarantee the precise guidance and has a good motion precision. The function of motion parameter setting and adjustment can be realized after the position information is obtained by feedback, but this function usually needs to be realized after the pre-adjustment or adjustment of the speed.

(2) Speed regulation

The change of motion trajectory needs to be measured by the speed sensor, through which the server receives the change of each motion process, and then adjusts the speed of each motion process. Because the change in the process of motion mainly depends on the axis of rotation and rotation direction and other factors. Therefore, it can run synchronously with the controlled equipment and meet the requirements of precise motion control. For example, the machine tool is controlled by the high-speed rotating shaft. After receiving the displacement data of the device, the speed sensor outputs the corresponding speed to the movement system through the encoder. The speed data output by the speed sensor of the server can be directly passed through the high-speed motor input terminal at the server end, and through the motor current, speed transmission signal to realize the movement system and the computer communication, to achieve the synchronous speed adjustment requirements with the controlled equipment. The speed sensor can also collect the speed data and send the output signal to the server for synchronizing error compensation and other functions. In order to meet the requirements of real-time motion control and real-time acquisition and calculation of position data, real-time speed information can be collected through the input and output terminals of high-speed sensors.

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