Product Description Universal VFD Single to 3 Phase 220V to 380V Variable Frequency Drive 4KW 6HP AC 20A Governor Item Type: Variable Frequency Drive (VFD) Model: AT904-4KW Input Voltage: Single phase 220VAC, 50/60Hz Output Voltage: Three phase 0-380VAC, 0-400Hz Maximum Output Current: 20A Adapted Motor Power: 4KW (6HP) Filter: Built-in filter Application: General purpose DC Power Supply Properties: Voltage type Control Mode: V/F open loop Output Voltage Regulation Mode: PWM control Appearance: ABS plastic shell Product Size: Approx. 25 x 18 x 16.5cm / 9.8 x 7.1 x 6.5in (manual measurement with certain error) Uses: Controls the start, stop, speed regulation, and CW/CCW rotation of the motor Widely used in fans, pumps, air compressors, etc. Features: Multi-Stage Control: 8-stage programmable control for multi-stage speed regulation, with multiple operation modes available. Simple PLC operation with optional torsion or speed control mode. Analog Input/Output: Standard RS485 RTU mode, supports multiple analog inputs or outputs of 0-5V, 0-10V, 4-20mA, 0-20mA. Constant Pressure Water and Wind Control: Adopts PID control for constant pressure water supply and wind pressure control. Environmentally friendly and energy-saving, with low noise and low electromagnetic interference. Stepless Regulation and Energy Saving: Provides low frequency and high torsion energy-saving options, multiple motor protection methods, and stepless speed regulation. Various Protection Methods: Overcurrent, overvoltage, undervoltage, module failure, overheating, short circuit, input and output phase loss, abnormal motor parameter adjustment, and electronic thermal relay protection. Package Includes: 1 x Variable Frequency Drive (VFD) 1 x User Manual Installation and Usage Instructions: Motor Compatibility: Ensure to select a compatible motor, specifically a 380V three-phase motor with a power less than 4KW and adjustable speed. Wiring: Follow the wiring method as described in the manual to connect the power supply and the three-phase motor. Operation Mode Selection: Choose the appropriate operation mode based on your application needs. Refer to the manual for detailed mode selection instructions. Power On: Adjust the motor speed and CW/CCW rotation using the knob on the panel. Note: The VFD is designed to enhance the efficiency and control of various industrial applications. Ideal for use in fans, pumps, air compressors, and more, it provides reliable performance and robust protection features. Ensure proper installation and operation by following the user manual. Enhance Your Industrial Automation: This Universal VFD offers a reliable and efficient solution for controlling and regulating the speed of three-phase motors. Its advanced features and robust protection mechanisms make it an ideal choice for a wide range of industrial applications. Order now to improve your motor control capabilities and operational efficiency.