【Attention】External resistance is not supported, you can adjust the parameters to achieve the function of external resistor. If your motor is heavy duty, please choose a higher power VFD. △ (Delta) connection is recommended for this product. If you have complex needs, please do contact customer service before use to get accurate advice. Please attach pictures of the load equipment parameters ( e.g. nameplate of the motor). 【Product Parameters】Power: 0.75KW, input voltage: AC 220V(180-250V),output voltage 220V;input current 3.5A, output current 5A; input frequency 40-60HZ, output frequency: 0-400HZ; input phase: single-phase or three-phase, output phase: three-phase. 【Intuitive Display and Button】The display and keys of the product can let users get started quickly. After the panel is disassembled, it can be connected to the corresponding interface to achieve remote control. 【Various Protection】The product has overload protection, fuse protection, overvoltage protection (DC voltage > 400), or low voltage protection (DC voltage < 200), restart protection, stall protection, short circuit protection, and overheat protection. 【Good Noise Control】The product has the advantages of low noise and low electromagnetic interference, which are achieved by the excellent PMW control technology and component compatibility design. There is enough space for cooling between each component, and the product casing is designed with multiple holes, the above features can make this VFD have a longer service life. niubi