步进电机使用的一些问题（国外英文资料）.docVIP

步进电机使用的一些问题（国外英文资料） The calculation method and application of the step motor are used A step motor is an electromagnetic actuator that converts a digital input pulse into a rotational or linear incremental motion. Each input one pulse motor turns in a step Angle increment. The total return Angle of the motor is proportional to the input pulse, and the corresponding speed depends on the input pulse frequency. Stepping motor is one of the key parts of the electromechanical integration products, and is commonly used as a positioning control and speed control. It features low inertia, high positioning accuracy, no accumulated error and simple control. It is widely used in the products of electromechanical integration, such as CNC machine, packaging machine, computer peripherals, photocopier, fax machine, etc. When stepping into the motor, the first step is to ensure that the output power of the step motor is greater than that of the load. And when choosing power stepping motor, first to compute the mechanical system of load torque, motor torque-speed characteristic can satisfy the mechanical load and has a certain margin to ensure its running can *. During the actual working process, the load torque at various frequencies must be within the range of the moment frequency characteristic curve. Generally speaking, the maximum static moment Mjmax is large, and the load torque is large. When stepping into the motor, the step distance Angle and mechanical system should be matched so that the pulse equivalent of the machine can be obtained. In the process of mechanical transmission in order to have a smaller pulse equivalent, it is can change the lead screw, 2 it is can be done through stepping motor subdivision driver. But segmentation can only change the resolution, not the accuracy. Accuracy is determined by the intrinsic properties of the motor. Select power stepping motor, it shall estimate the load moment of inertia of the mechanical load and machine tools required start