03/12/2021
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
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.
03/10/2021
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.
03/10/2021
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.
03/09/2021
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
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
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
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
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
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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