The is a single-phase 220 V input frequency converter to drives a three-phase motor (be to convert the connection into a -riangle type). Four-digit digital tube display, you can see the data clearly. Support display radiator temperature value, current current value, direct current master value, motor speed, operating frequency value. Output 1.0-99.0Hz, in order to the output , this product uses SVPWM modulation mode, carrier-frequency 8.0KHz. The frequency converter can arbitrarily change the V/F by setting the V/F compensation frequency and the at the frequency. By setting the maximum value of V/F , according to the load situation, to maximize the use efficiency of electric energy, reduce the heat of the motor, prolong the servicelife of the motor and frequency converter. Low frequency high , 220 V single-phase input, 220 V three-phase output, energy saving and electricity saving. Overheating and over- protections. Specifications: Name: Frequency Converter Power: AC220V +/- 20% Input speed: 3000rpm Output speed: 0-3000rpm Speed adjustable-range: 0-1800rpm Rated power: 0.75KW Temperature: -10℃ to 55℃ Humidity: 0-65% Item size: 143 x 100 x 61mm / 5.63 x 3.94 x 2.40in Item weight: 362g / 12.77ounce / 0.80lb Colour: black Material: ABS + electronic components Package Contents: 1 x Frequency Converter 1 x English manual Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.