<b>Introduction</b> <br> <br> This VFD can be used for constant torque loads (such as hard starting: Air compressors, HVAC units) and variable torque loads (such as pumps, fans, etc). It can be used as a motor speed control and a phase converter. This VFD is single phases input. You can control the different speed .It can be used as a motor speed control and a phase converter.Many customer bought our VFD from us to use for:Lathes, Mills, Car Hoists, Pumps and Conveyors. <br> <br> <b>Technical Parameters</b> <br> <br> Power:4KW <br> Input Voltage:220(We also stock 380±15%, please contact us for item stock) <br> Input Frequency:48 to 63 Hz <br> Output Voltage:208 to 240VAC (analogous to Input Voltage) <br> Output Frequency:0 to 400 Hz <br> Input Phase: single phase <br> Output Phase:3 phase <br> <br> <b>Features</b> <br> <br> 1.Fin over-heat protection, restriction of reverse running, direct start after power on, fault reset, parameter lock PID, one-drive-more, etc. <br> 2.RS485 communication port,adopting standard international MODBUS main circuit control <br> 3.Broad voltage working area <br> 4.PID control: advanced calculous PID closed-loop arithmetic, quick responding speed and high suitabil <br> 5.Broad voltage working area <br> 6.Various control technique by both synchronization and non-synchronization, dynamically realize fast starting without changing brakes <br> 7.Carrier adjustable by 16KHZ, completely soundless working environment <br> 8.RS485 communication port,adopting standard international MODBUS main circuit control <br> 9.Auto voltage regulation (AVR) technique,ensuring the inverter load capability <br> 10.With perfect error protection and short circuit starting protection capability