This is a single-phase 220V voltage input frequency converter for driving a three-phase motor (be sure to convert the connection method to a T-triangle type).Four-digit digital tube display, you can see the data clearly.Support display radiator temperature value, current current value, DC main voltage value, motor speed, operating frequency valueOutput 1.0-99.0Hz, in order to improve the output voltage, this product uses SVPWM modulation mode, carrier frequency 8.0KHz. The frequency converter can arbitrarily change the V or F curve by setting the V compensation frequency or F and the ratio of voltage to frequency.By setting the maximum value of V or F curve, according to the load situation, to maximize the use efficiency of electric energy, reduce motor heat, extend the life of motor and inverterfrequency. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.