Frequency converter selectionFor light loads, choose one grade larger (1.5kw motor chooses 2.2kw) and heavy load selection multiplies by 2 (2.2kw motor chooses 5.5kw). Because the voltage needs to be changed, the pressure on the inverter is relatively high, so choose to leave enough marginPower: 2.2KWInput voltage: 220V(170V-240V) Single phase/380V(330V-440V) Three phaseOutput voltage: 380V(330V-440V) Three phaseFrequency range: 0.1-400HzOutput frequency accuracy: 0.1HzControl mode: space vector, V/F controlV/F control: V/F curve can be set arbitrarily to meet the needs of different loads.PID controller: built-in PID controllerRS485: standard RS485 (MODBUS) communication functionProtective functionOverload protection: constant torque 150%/1 min, variable torque 120%/1 min.Overvoltage protection: Overvoltage protection can be configured.Undervoltage protection: protection can be setOther protections: short circuit protection, over current protection, parameter lock, etc.Colour:BlackMaterial:Plastic + MetalPackage Contents:1x Universal Frequency converterOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.