himaxmotors

Closed loop servo system is also subordinate to CNC machine tool servo systems; closed loop servo system is composed of Comparison links, servo motor driver amplifier, feed servo motor, mechanical transmission and integral linear displacement measuring device. The system has detection and feedback correction function on the amount of movement of the of the machine movement components, it adopts DC servo motor or AC servo motor as the drive components. It can directly use the grating installed in the table or induction motor as the position detection device to constitute high-precision closed loop position control system. . Linear displacement detector of the system was installed in the moving parts; its accuracy relies on the accuracy of displacement detection devices and sensitivity, the process precision it produced is relatively high. But many nonlinear factors have a significant impact on system stability such as the mechanical transmission device stiffness; friction damping characteristics, Backlash etc. these factors make closed loop more complex to install for servo system. Therefore, this system only used in high precision and large-scale CNC machine tools.。