Power: single phase, 220v:0.4kw-2.2kw Three phases, 380v:0.75kw-630kw Output frequency:0-650hz Voltage, undervoltage, over temperature, open phase, overload.... Totally 23 situations. 7.Speed control ratio:1:100 (svc) 8.Carrier frequency:1~15.0khz Main features Compact size and less weight. Combined module for 3.7kw or below with high reliability. Reasonable layout with less interference and better ventilation. Combined module with perfect reliability. 3 control modes available: vf control, sensorless vector control, torque control. High start torque: 0.5hz, 180%(vector control) 16 steps speed control, simple plc function, pid function 7 digital inputs(including 1 pulse input), 2 analog input and 2 analog output, 2 relay output, 1 open-collector output. Automatic output voltage regulation(avr) Rs 485 interface(modbus rtu communication protocol) Packing: 1set per carton or wooden case Weight:>1.5kg Dimensions:>132mm*74mm*162mm