CE approved; Control mode: OLV, CLV, V/F Applicable to situations which need high accuracy EM300A General Vector ... .4-200 kW (customized)Technical specificationControl mode: OLV, CLV, V/F, Frequency width: 0.01-600.00HzDigital channels: 8 inputs, 2 ... circuit, over current etc.PG board is optional SINEE EM300A series good inverter