Size optimization: book shaped design, easy to install, more compact product structure Rich product configuration and interfaces, powerful functions Equipped with a built-in 485 communication interface as standard, it has rich input and output terminals, and provides an external keyboard interface to better meet on-site application needs; Integrate rich product features to meet diverse application needs Simple PLC, multi-stage speed control, built-in PID, torque control, multi-point V/F curve, multiple braking modes, instant power-off without stopping, etc; Powerful in function and excellent in performance, it can be widely used in small and medium power applications, such as food machinery, plastic machinery, ceramic equipment, petroleum machinery, cable equipment, air compressors, machine tools, woodworking machinery, textile machinery, printing and packaging equipment, chemical equipment, environmental protection equipment, conveying equipment, etc.