Feature: 1. [Input and Output] This variable frequency drive uses 3 phase AC380V 50 60Hz input to 3 phase AC380V 0‑320Hz output with 14.6 or 20.5A input current and 13A or 17A output current. 2. [RS485 and PID] This variable inverter drive has built in PID controller (presettable frequency). Standard configuration RS485 communicating function, multiple communicating protocols are optional, with linked synchronous control function. 3. [Large Heat Sink] Frequency inverter uses a large heat sink with a small fan, and the small fan ensures low noise while assisting good heat dissipation. 4. [Humanized Keyboard] This frequency inverter drive adopts humanized keyboard design, with reasonable layout and easy operation. The digital display is intuitive and clear. The detachable design is convenient for remote control. 5. [Wide Application] Variable frequency drive is suitable for speed control equipment such as CNC router, milling machine, drilling machine, mixer, extruder, ventilator, pump, grinder, etc. Specification: Item Type: Variable Frequency Drive Material: Aluminum Alloy, Flame Retardant PC Input Voltage: 3PH AC380V 50 Or 60Hz Output Voltage: 3PH AC380V 0-320Hz Input Current: 14.6A or 20.5A Output Current: 13.0A or 17.0A Applicable Motor Power: 5.5kW Or 7.5kW Ambient Temperature: -10℃ To +40℃ (If The Ambient Temperature Is 40℃ To 50℃, Please Reduce The Amount Of Use) Ambient Humidity: 5% To 95%RH, No Condensation Of Water Droplets Surrounding Environment: Indoor (No Direct Sunlight, No Corrosion, Flammable Gas, No Oil Mist, Dust, Etc.) Altitude: 1000 Meters Or More, 10% Reduction For Every 1000 Meters Of Altitude Protection Levels: IP20 Cooling Method: Air Cooled, With Fan Control Typical Functions: Multi Segment Speed And Pendulums Frequency Operation: 16 segment programmable multi segment speed control, multiple operation modes. Pendulums Frequency Operation: Preset frequency, adjustable center frequency, state memory and recovery after power failure PID Control RS485 Communication: Built in PID controller (presettable frequency) Standard configuration RS485 communication function, a variety of communication protocols are optional, with linkage synchronization control function.. Package List: 1 x Frequency Converter 1 x Instruction Manual