Servo motor servo motor servo system refers to the manipulation of the mechanical components work in the engine, is a direct subsidy motor variable speed device. Can make the control speed, the position accuracy is very accurate, can convert voltage signal into torque and rotational speed to drive the control target. Signal and type of servo motor function, what is the detail? 1, the main circuit, main circuit including main power input output, servo motor and the dc bus braking resistor and brake unit of dc reactor high voltage, large current equipments. 2, pulse input/output: according to the demand, the frequency of the servo motor for a given input and data output condition also can choose the way of pulse input, the output will pass through change the pulse frequency to adjust the frequency of the servo motor or output data. 3, safety loop: conjunction EN954 - have been added to servo motor1, IEC/EN61508 specification can be safety oversight functions of EDM, servo motor by the external security circuit, direct extraction extremely close function HWBB complete hardware, its effect and the safety of the servo drive circuit is the same. 4, communication convergence: most of the servo motor are equipped with standard RS85/422 communication interface, parameter setting and working of the servo motor control can also be through network communication instructions, standard communication protocol for MemoBus servo motor, such as links to other web, the demand for matching the corresponding communication interface module. The above is servo motor system to connect and requirements. But ordinary servo motor, not only can use DI/DO signals, AI/AO signal is less, also DO not have pulse input/output, safety loop, its cohesion are short.
