How to determine the pulse number of the step motor
The first step is to know the Angle of the step, and the Angle of the step and the detail of the drive to figure out the number of impulses. Pulse number = need to go Angle/step Angle * fraction
Pulse number = need to go Angle/step Angle * fraction. The first step is to know the Angle of the step, and the Angle of the step and the detail of the drive to figure out the number of impulses. The step motor is an open loop controlling element which converts the electrical pulse signal into angular displacement or line displacement. In the case of the overload, motor speed, stop position depends only on the pulse signal frequency and pulse number, and not affected by load change, when the stepper driver receives a pulse signal, it is driving a stepper motor according to set the direction of a fixed Angle, known as the "step Angle", its rotation is based on the Angle of the fixed step by step. It can control the amount of angular displacement by controlling the number of pulses, so as to achieve accurate positioning. At the same time, the speed and acceleration of the motor can be controlled by controlling the pulse frequency to achieve the goal of speed adjustment. Stepper motor is a kind of induction motor, its working principle is the use of electronic circuit, direct current (dc) into time-sharing power supply, multiphase sequential control current, in this current for stepper motor power supply, step motor to work properly, is time-sharing power supply for step motor drive, multiphase timing controller.
A full 360 degree. The distance between the conveyor belt and the conveyor belt is the circumference of the transmission wheel. Pulse number = transmission distance/(transmission wheel diameter * 3.1415926) * 360 / step in the Angle * drive
Stepper motor as a kind of control precision displacement and a wide range of speed regulation of motor, its rotation is inherent interval angle-angle (determined by the mechanical structure of rotor and stator) running step by step, every step is characterized by rotation, step away from the Angle of constant, can keep the position of the precision. So no matter how many times you spin, you don't get the error. Because the control method is simple, the cost is low, widely applied to various open loop control. The moving motor needs to be driven by a power electronic device with pulse distribution, which is the step motor drive. It receives the pulse signal from the control system, according to the structure characteristics of stepper motor, pulse sequence distribution, realize to control the angular displacement, rotation speed and direction of rotation, braking load state and free state. The control system sends an impulse signal that drives the step forward motor to rotate a step Angle through the driver. The speed of the step motor is proportional to the frequency of the pulse signal. The angular displacement is related to the number of pulses. Stepper motor stop rotating, can produce two kinds of state: can produce brake load or part of the largest holding torque (often referred to as the brakes to keep, need not electromagnetic brake or mechanical brake) and the rotor in the free state (external thrust can be driven easily rotate). The step motor drive must match the type of the step motor. Otherwise, it will damage the step motor and drive.
Although the stepping motor has been widely used, the step motor is not used as a normal dc motor and ac motor is used regularly. It must be used by the control system such as double ring pulse signal and power drive circuit. Therefore, it is not easy to use a good step motor, which involves a lot of specialized knowledge, such as machinery, electrical machinery, electronics and computers. Stepping motor is one of the key products of mechanical and electrical integration, and is widely used in various automatic control systems. With the development of microelectronics and computer technology, the demand for stepping motors is increasing, and there are applications in the national economy.
