一、Application introduction

At present, the whole series of new vector control universal inverter of Meixin Electric has automatic measurement of asynchronous motor parameters, automatic identification, adaptive function, the general frequency converter with this function can automatically identify the parameters of the asynchronous motor before driving the asynchronous motor for normal operation, and adjust the relevant parameters in the control algorithm according to the identification results, so as to carry out effective vector control of the ordinary asynchronous motor.

The basic principle of spindle frequency conversion control

二、Hardware wiring

三、Parameter settings

The table shows the basic settings of the inverter parameters, and "/" is the default value. Refer to the manual for functional details; The F01.09 parameter is the value determined after debugging, please refer to the debugging test for details.

四、Debug tests

The motor shaft and the spindle are connected by V-pulleys. On the left is the motor shaft, and on the right is the spindle. The specific wheel size is subject to the actual situation on site. The spindle is connected to the external encoder via a timing belt. Upper encoder shaft, lower spindle. The modulus of the two synchronous wheels is the same.

五、Debugging process

六、Device description MR200-4T-7.5B