CNC engraving and milling machine is a kind of high-efficiency and high-precision CNC machine tool, which can carve or mill. Carving and milling machine has a wide range of applications, widely used in precision mold rough and finish machining, mold copper electrode, aluminum products batch processing, shoe mold manufacturing, fixture processing, clock and watch industry.

technological requirements
(1) The maximum speed of high-speed motorized spindle is generally 18000 ~ 90000 rpm, and the frequency range of frequency converter is 300 ~ 1500hz;
(2) High torque at low frequency and high speed stability at high frequency;
(3) The linearity of analog input is high;
(4) Low noise, small vibration, high protection level.

System scheme
Select vl6100 series vector type general inverter, work in high frequency output mode, the maximum output frequency is 3200 Hz;
(1) Analog Ai1 (0-10 V) speed regulation;
(2) External terminal start stop control;
(3) Alarm signal and zero frequency operation signal output;
(4) According to the unique V / F curve characteristics of high-speed spindle, the inverter parameters are set.

Features of the scheme
(1) The highest frequency is 3200 Hz, which meets the high frequency processing requirements of engraving and milling machine industry;
(2) Ai1 analog input internal correction function to ensure the given speed linearity requirements;
(3) Good acceleration and deceleration performance to ensure high-speed machining efficiency;
(4) Multi section V / F curve can be set, which is perfectly adapted to the voltage frequency curve of high-speed spindle motor;
(5) Special three proofing paint process, glue treatment of fan solder joint, and dust-proof label are selected to ensure the reliability of the product in humid and dusty environment.