AS500 series high-performance inverter was adopted with typical V/F control technology, zero-speed sensor vector control technology, closed-loop vector control and torque control technology, as well as synchronous open-loop vector control technology and synchronous closed-loop vector control technology, combined with the characteristics of domestic application, further strengthening the product reliability, environmental adaptability and design for customer and the industry. Products are widely used in heavy industry and engineering machinery load, suitable for asynchronous motor and synchronous motor.