Composition of servo drive system

The controller is usually a computer or PID control circuit, and its main task is to transform and process the deviation signal output by the comparison element, so as to control the executive element to act as required.
Power amplification is to amplify the power after comparing the input command signal with the feedback signal of the system.
The function of the actuator is to convert the input energy into mechanical energy according to the requirements of the control signal and drive the controlled object to work. The actuator in mechatronics system generally refers to all kinds of motors or hydraulic and pneumatic servo mechanisms.
Mechanical components refer to the controlled mechanism or device, which is the main body to directly complete the purpose of the system. It generally includes transmission system, actuator and load.
The detection link is a device that can measure the output and convert it into the dimension required by the comparison link. It generally includes sensor and conversion circuit.

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03/12/2021

Composition of servo drive system

The controller is usually a computer or PID control circuit, and its main task is to transform and process the deviation signal output by the comparison element, so as to control the executive element to act as required.

03/12/2021

Four control modes of servo drive

1.Feedback compensation open loop control. The accuracy of open-loop system is low, because the step error , start stop error and mechanical system error of servo driver will directly affect the positioning accuracy. This system has the advantages of both open-loop and closed-loop, that is, it has the stability of open-loop and the accuracy of closed-loop.

03/11/2021

The main circuit fuse fusing is a common fault of SCR servo driver. The causes of fuse fusing are as follows

The "phase sequence" of power incoming line is incorrect. Due to the synchronization problem between the trigger pulse and the main circuit of SCR servo driver, there are strict requirements on the "phase sequence" of the input power supply. If the "phase sequence" is not correct, connecting the power supply may immediately cause the fuse of the main circuit of the driver to blow.

03/11/2021

Common faults

The motor of servo driver is unstable, and the speed is fast and slow. The main reasons for this kind of fault are as follows: 1.The servo driver parameters are not adjusted properly, and the regulator does not reach the best working state.

03/10/2021

Servo driver related parameter setting method

Position feedforward gain: set the feedforward gain of the positioning loop. The larger the set value is, the smaller the position delay isand the larger the feedforward gain of the position loop is, the high-speed response of the control system will rise, but the position of the system is unstable and prone to oscillation. When high response characteristics are not required, this parameter is usually set to 0, indicating the range of 0 ~ 100%.

03/08/2021

AC servo driver wiring precautions

For signal line and encoder input line, please use shielded wire. Wiring length: the length of signal line from NC to AC servo driver is less than 3m, and the length of input line from AC driver to encoder is less than 20m. The ground wire should be thick wire as far as possible. According to the third grounding standard (grounding resistance < 100 Ω), one point grounding method should be adopted to connect the ground wire. If the motor and the machine tool are insulated, the motor should be grounded.

03/05/2021

Precautions for use and installation

Ambient temperature of servo driver. 1) Operating temperature: - 10 ℃ ~ + 40 ℃; (2) storage temperature: - 25 ℃ ~ + 65 ℃; (3) ambient humidity: 5% ~ 90%, no condensation; (4) vibration / shock: vibration is 0.5g (4.9M / S2), shock is 2G (19.6m / S2).

03/05/2021

What is servo drive?

As one of the importanttechnologies of CNC machine tools, industrial robots and other industrial machinery control, servo drive technology is widely concerned at home and abroad. In the last decade of the 20th century, the development of microprocessor (especially DSP), power electronics, network technology and control technology havelaid a good foundation for the further development of servo drive technology.

03/04/2021

Advantages of servo motor

Precision: the closed-loop control of position, speed and torque, and the problem of out of step of stepping motor is solved; Speed: high speed performance, general rated speed can reach 2000 ~ 3000 rpm;

03/04/2021

What is servo motor brake

Servo motor brake, also known as holding brake, is a component of power release. Generally, the servo motor with brake is integrated with the motor. Generally, DC24 V power supply is used. It is mainly used to lock the rotor shaft of servo motor after power off.

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Composition of servo drive system

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