Why does the stepping motor stop the brakes
The step motor itself has the torque, and the torque of the electric motor can be used to lock the motor, which is equivalent to the brake. But if the stepper motor torque is not enough big, need more locked torque, or outage hind leg motor keep lost moment can consider the use of the stepper motor with brake. Stepper motor brake generally have a spring type and permanent magnet, including permanent magnet brake faster response speed (within 50 ms can lock), low noise, less heat, can be electric braking or electric braking, but off the electric brake is more commonly used. The permanent magnet cost is a bit more expensive, the manufacturer is relatively few, can see the information and explanation of the permanent magnet brake on the website of shenzhen weicott electromechanical co., LTD. With big reduction ratio of the reducer and a stepper motor keep torque or braking torque can also have the brakes, but good reducer more expensive than the brake, if just for the sake of brake USES think there is no need for this choice.
Stepping motor: 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. 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.
Mechanical inertia too much more than keep the torque stepper motor, suggest using bigger stepper motor, or reduce the stepper motor speed so that there will be a better, deceleration time also to the right.
