1.Definition
A two-phase stepper motor is a motor that converts electrical pulse signals into mechanical motion. It consists of two windings, each of which is connected to a phase driver. When current passes through the windings, the motor generates a magnetic field, which interacts with the stator magnetic field to cause mechanical motion. By changing the direction and size of the current in the windings, the rotation angle and speed of the motor can be controlled. Two-phase stepper motors have high positioning accuracy, which can usually achieve an accuracy of several angles. They are the most commonly used type of stepper motors on the market and are also the most cost-effective.

2.Maintenance methods of two-phase stepper motors
1.Appearance inspection: Regularly check the appearance of the 2-phase stepper motor to ensure that there is no dust accumulation, clean the motor surface in time, and keep the motor clean and beautiful.
2.Environmental adaptability: Ensure that the 2-phase stepper motor works in a dry, well-ventilated environment without corrosive gas and dust pollution, and avoid installing it in an environment that is too humid, corrosive gas, severe dust, and too high or too low temperature. ‌
3.Installation and adjustment: Check the appearance of the motor before installation to ensure that all parts are intact. No obvious deviation is allowed in the axial direction during installation. Check the accuracy of the base after installation and adjust if necessary. ‌
4.Cleaning and lubrication: Clean the dirt inside and outside the motor regularly, keep the motor lubricated during operation, and regularly add oil to maintain the operating speed and stability. ‌
5.Parts replacement: Check the motor parts regularly for damage or wear, replace components such as synchronous belts, gears and controllers in time, and ensure that original accessories are used. ‌
6.Temperature monitoring: Monitor the motor temperature during operation to ensure that the temperature is within the appropriate range to avoid overheating damage. ‌
7.Troubleshooting: If you encounter problems such as motor overheating, abnormal speed or self-rotation, check and deal with them in time, and perform internal inspection and repair if necessary.

3.Application areas of 2-phase stepper motors
1.Electronic equipment
Two-phase stepper motors are mainly used in various electronic devices, such as digital cameras, printers, scanners, etc. In these devices, stepper motors can achieve precise positioning and control, making the operation of the equipment more precise.

2.Printing and packaging
In the field of printing and packaging, two-phase stepper motors are widely used in various equipment, such as printing machines, labeling machines, sealing machines, etc. These equipment require precise rotation and positioning, and stepper motors can meet this demand and play a very important role.
3.Medical equipment
In medical equipment, two-phase stepper motors are also widely used. For example, blood analyzers, drug dispensing machines, syringes, etc., these equipment require precise control and rotation, and stepper motors can achieve this function, making these equipment more efficient and accurate.
4.Textile machinery
In textile machinery, two-phase stepper motors are also widely used, such as shoelace machines, winding machines, braiding machines, etc. These machines require precise control and rotation, and stepper motors can meet this demand, improving the production efficiency and quality of the machinery

4.Summary
The technical development of 2-phase stepper motors is mainly focused on improving their performance, efficiency and reliability. ‌Hybrid stepper motors, as a type of 2-phase stepper motors, combine the advantages of permanent magnet and reactive stepper motors to provide higher torque and smaller step angles, thereby improving motor performance. ‌In addition, with the advancement of material science and manufacturing technology, the manufacturing accuracy and durability of 2-phase stepper motors have also been significantly improved.

Source:https://blog.udn.com/stepperrelation/180870223