AS450 series frequency converter is the latest frequency converter designed for the Chinese market by Shanghai Sigriner STEP Electric Co., Ltd. This product is suitable for induction asynchronous motors. The product adopts the current international leading speed sensorless vector control technology, closed-loop vector control and torque control technology, not only has the same excellent control performance as the international high-end inverter, but also combines the application characteristics of China to further strengthen the reliability of the product Adaptability to the environment and environment, as well as customized and industrialized design, can better meet the needs of various heavy-duty transmission applications