Features:  Uses distinctive control method to realize high torque, accurate and wide speed regulating ranges driving, with perfect performance.  It has fine anti-trip performance and ability to adapt to rough power, temperature, humidity and dust interference, greatly improved stability.  Through optimizing PWM control technology and electromagnetic compatibility, it satisfies users' requirement of low noise, low electromagnetic interference.  Large heat sink and high-efficiency integrated fan for better heat dissipation and safer use.  Externally accessible potentiometers 0-10V, 0-5V, 4-20ma, 6 multi-function inputs, 2 outputs (relays optional), up to 8 stages of speed control.  Starts/stops response time is short, low torque.  With under-voltage, overvoltage, overcurrent, overheating, short circuit protections.  Frequency converter maximum output rate 400hz.  Simple to operate and wire, connect to wires after removing screws.  Quickly starts/stops response, large torque at low speed.    Specifications:  Name: Variable Inverter  Model: AT3-1500X  Power Phase: three phase  Application Ranges: universal  Rated Voltage: three-phase AC 380V  Adaptation Motor Power: 1.5KW  Control Method: V/F closed loop  Output Voltage Regulation Mode: PWM control  Materials: Engineering plastics  Rated Current: 4A  Item Weight: 1193g / 2.63lb  Package Weight: 1356g / 3.00lb  Item Size: 180 * 130 * 125mm / 7.09 * 5.12 * 4.92in  Package size: 215 * 200 * 160mm / 8.45 * 7.87 * 6.30in    Button:  DISP: Switch monitoring parameters at monitoring state, at secondary menu, move data box to process editing position.  PROG: Exit current(or present) state, switch among each states, mainly used to switch monitoring state, exit to previous menu.  FUNG/DATA: Enter menus step-by-step, save setting parameters.  Up: Press or press and hold to add data or function code.  Down: Press or press and hold to minus data or function code.  RUN: Starts.  STOP/RESET: VFD stops running 2, restore to interface before error.  Knob: Adjust rotational speed.    Packing List:  1 * Variable Inverter  1 * Manual          By the way,if you like our store,please add our store to your Favorite Stores.You can get our New arrival and Discount    information in time.