SPEED CONTROL DEVICE-AC DRIVE-INVERTER 3 x 380VAC (+/- 15%) 50 / 60Hz supply voltage V / F and Open loop vector control High starting torque (150% at 0.5Hz) 7PCS PNP / NPN digital input 2 Relay output 2 Pcs 0-10VDC / 4-20mA analog input 2 Pcs 0-10VDC / 4-20mA analog output PID automatic control for pressure applications RS-485 communication port with built-in Modbus RTU Easy operation interface Detachable operator panel (Standard ethernet cable on the top of the panel with the portable) Dual operation mode and fan-pump applications with the economic solution Autotune feature to adjust the motor parameters automatically Built-in brake chopper (up to 30kW) Adjustable output frequency up to 3000Hz.