The role of the servo drive

　　Servo drive, also known as "servo controller", "servo amplifier" is used to control the servo motor of a controller, its role is similar to the inverter acting on the ordinary AC motor, part of the servo system, mainly used in high Precision positioning system.

　　Servo drives are widely used in the field of injection molding machines, textile machinery, packaging machinery, CNC machine tools and other fields.

　　Traditionally speaking: the frequency converter is for the purpose of speed control, servo is the location control for the purpose, so there is a distinction between the inverter and the servo drive. Usually the power of the inverter is large, and the servo drive power is small. The frequency converter is generally expressed by the power KW, the servo driver generally emphasizes the speed and torque. But at present, the inverter has further development and expansion: some brands of inverter can have a strong servo function, such as AB PF755 and PF700S, Siemens S120, can drive the servo motor. Choose your choice based on your application and needs.