Since the 1970 s, due to the development of the torque motor and high speed machine, sensitivity to step into the system to realize the direct drive, abolish or reduce the nonlinear factors such as backlash and elastic deformation, the bandwidth reaches 50 hz, and successfully used in long-range missiles, satellites, precision director etc. The precision of stepper system mainly depends on the precision of the measuring element. step progress motor used to precisely follow or a feedback control system in the process of repetition. Also known as the servo system. In many cases, the points to be controlled stepper system (The system output)Is the mechanical displacement or displacement velocity and acceleration feedback control system, its role is to make the mechanical displacement output (Or corner)Accurately track the input displacement (Or corner)。 Step into the system structure, and other forms of feedback control system there is no difference in principle. the most basic step system includes a step into the executive components (Motor, hydraulic cylinder, etc. ), the feedback element and stepper motor drives, but to make the system work also need a superior institution, PLC, motion control card, industrial PC + PCI card, in order to send instructions to stepper motor drives. the stepping system: is the location of the object, location, status, etc is accused of output can follow the input target (Or a given value)Any change of the automatic control system. Step by step, according to the requirement of the control command is the main task of the power amplification, transformation and regulation, such as processing, driving device, the output torque, speed and position control is very convenient. so far, most of high-performance electric stepper system using permanent magnet synchronous ac stepper motor, control drive more rapid and accurate positioning of the digital position step into the system. A typical four macro motor manufacturers such as Shanghai. the main products: stepper motor, brushless motor, servo motor, stepping motor drive, brake motor, linear motor and other kinds of models of the stepper motor, welcome to inquire. Telephone: