State analysis method is a method to determine the cause of failure by monitoring the working state of the actuator. This method is most widely used in the maintenance process of CNC machine tools. In the numerical control system, the main parameters of servo feed system, spindle drive system, power module and other components can be tested dynamically and statically. These parameters include: input / output voltage, input / output current, given / actual speed, actual load of position, etc.
In addition, the status of all input / output signals of the CNC system, including internal relays, timers, etc., can also be checked through the diagnostic parameters of the CNC system. Through the state analysis method, the cause of the fault can be quickly found according to the internal state of the system without instruments and equipment. This method is most widely used in the maintenance process of CNC machine tools, and the maintenance personnel must be proficient.
