Q:Step 2: what does the 5 phase mean

There are three types of stepper motors: permanent magnetic (PM), reactive (VR) and hybrid (HB). The permanent magnet step is generally two phases, the torque and volume are small, the step Angle is usually 7.5 degrees or 15 degrees.

Q:How big is the minimum step motor? How big is the motor?

In electronic meter, the step motor is very small, it only drives the digital turntable

Q:How does the step motor start?

LOCK is a signal that a signal error causes the entire program to be stuck, equivalent to a valve. I don't know exactly. If is the printer display error, it may be bought your driver do not match, drive is divided into single pulse and double pulse drive, your is double pulse mode, you can find technical personnel change the drive to try single pulse mode, pay attention to the voltage and current of driving

Q:How much static torque a motor can have when it is cut off

The stepping motor has a torque in the absence of electricity, called the brake torque. The braking moment is much smaller than the moment that holds the torque (the torque generated by the non-rotation when the current is energized). 57 stepper motor braking torque according to the motor size, the amount of each a magnet and magnet magnetic density, the clearance between rotor and stator is related, manufacturers usually don't put the parameters as indicators of management to control. The 57-series 57 motor is 77.5 mm long and the brake torque is about 88mNm, so you can have a concept of braking torque size.

Q:Where does the step motor need

Step motor is widely used in the motor drive control of various kinds of equipment. For example, from the joint drive of a complex robot to the home air conditioner. The main characteristic of the step motor is that each pulse is rotated one step at a time, so the positioning accuracy is higher than that of other machines, and the drive control is simple and the overall cost is low. For the digital age control system, the step motor is a digital motor, especially for the microcomputer, so the application is more and more widely. In many places it has even replaced other motors, such as servo motors.

Q:The principle of permanent magnet step motor

The characteristic of permanent magnet step motor is usually two phases, torque and volume are smaller. Stepper Angle is 7.5 ° commonly or 15 °. There are two parts of the rotor and stator: the stator is the coil, the rotor is the permanent magnet. It can also be a permanent magnet, the rotor is a coil. Here's how it works: For example, when the rotor of the motor is a permanent magnet, when the current flows through the stator winding, the stator winding produces a vector field. The magnetic field forces the rotor to rotate an Angle, making the rotor's magnetic field aligned with the stator's magnetic field. When the stator's vector field spins an Angle. The rotor also moves in an Angle with the field. Each input an electric pulse, the motor turns an Angle further. The angular displacement of the output is proportional to the number of pulses in the input, and the speed is proportional to the pulse frequency. If you change the order of the winding, the motor will reverse. The rotation of the step motor is controlled by controlling the number of pulses, the frequency and the electrical sequence of each phase winding of the motor. Permanent magnet step motor is characterized by simple mechanism, low noise, adjustable speed. It is widely used in bank, office equipment, telecommunications equipment, printers, photocopiers, fax machines, scanners, textile machinery, medical treatment, automatic control and stage lighting, building automatic control valve, monitoring and control system, electric, electric curtain, science and education instruments, air conditioning and other fields.

Q:What do you mean by step motor? Two phase stepping motor and three-phase step motor

It is not possible to do so at the moment, only each phase is directed by a certain order. Notice stepping in the name of the motor, step by step, electromagnetism is the electromagnetic relationship, electromagnetic objectivity. Stepping motor is only the tip of the iceberg. Don't feel abstruse and know the rules, you don't ask. The best don't ask such a low level question.

Q:How do you calculate the inertia and torque on the output shaft of the motor

The moment of inertia and torque calculated on the output shaft of the motor is calculated by the torque = force * force arm, which is a circle of 5cm long, which can be a radius of 0.8 cm. Torque = 20 * 0.8 = 16kg. Cm. How fast the weight is required to convert to the unit RPM (RPM) Now the important parameters of the motor are available, and you can simply find the step of the 16kg. Cm moment when you ask for it. It is best to multiply by a safety factor of 1.2, and the output torque is required to reach about 20kg. Cm.

Q:What is the characteristic of step motor? Compared with dc motors, what advantages does it have?

No coder and other feedback devices can be used to control the speed and Angle (i.e. open loop control), which is the most characteristic of stepping motor. The frequency of the pulse determines the speed of the motor, and the number of pulses determines the Angle of the motor. The dc servo system is the following advantages: 1, the locking position, motor power consumption: no longer stepping motor characteristic of the "static torque" (also called "holding torque", "localization" torque, etc.), when the motor stopped in a certain position, locking torque. The dc motor can also lock the position through the drive, but the motor still consumes power when locked.

Q:What is a step motor

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.