Main types and applications of servo motors

1.Definition of servo motors

Servo motors are motors that control the operation of mechanical components in servo systems. They are auxiliary motors that indirectly change speed. Servo motors can convert voltage signals into torque and speed to drive the controlled object, and have the characteristics of high precision and fast response. The main types of servo motors include DC servo motors and AC servo motors.

2.Detailed description of the working principle of servo motors

1.Receiving command signals: The controller receives command signals from external devices, which contain the desired motion state, such as position and speed.

2.Drive and feedback: When the servo motor receives a pulse, it will rotate a corresponding angle to achieve displacement. The servo motor itself has the function of sending pulses. Each rotation angle will send a corresponding number of pulses to form a closed-loop control.

3.Position detection and correction: The terminal of the reduction gear group drives a linear proportional potentiometer for position detection. The potentiometer converts the angle coordinates into a proportional voltage and feeds it back to the control circuit board. The control circuit board compares it with the input control pulse signal, generates a correction pulse, drives the motor to rotate forward or reverse, and makes the output position of the gear group match the expected value.

3.Main classification of servo motors

‌1.DC servo motor: This is the earliest type of servo motor, powered by a DC power supply. Precise control is achieved by controlling the current size and direction. DC servo motors have the characteristics of high precision, fast response and high torque, and are suitable for industrial automation fields that require high-precision control, such as CNC machine tools and printing presses.

‌2.AC servo motor: Powered by AC power supply, usually brushless design. AC servo motors have the characteristics of simple structure, long life, good dynamic performance and strong anti-interference ability, and are suitable for high-precision control and high-power output occasions, such as wind power generation and rail transportation.

‌3.Stepper servo motor: Driven by controlling current pulses, each pulse causes the motor to rotate a fixed step distance. Stepper servo motors have a simple structure and low cost, and are suitable for applications that require precise positioning and control, such as robots and medical devices.

‌4.Brushless servo motor: There are no brushes and brush rings, and the current and torque are controlled by an electronic controller. Brushless servo motors have the characteristics of high efficiency, low noise and long life, and are suitable for applications that require high performance and control accuracy.

5.Linear servo motors: used for linear motion control, suitable for occasions that require high-precision linear motion, such as precision machining equipment and automated production lines.

4.Applications of servo motors

1.Industrial automation: servo motors are widely used in CNC machine tools, automated production lines, packaging machinery, printing machinery and other equipment. They can respond quickly to control signals, achieve high-precision motion control, and improve production efficiency and product quality.

2.Robotics: servo motors are the core drive devices of industrial robots and service robots. By precisely controlling the speed and position of servo motors, robots can complete complex movements and tasks such as assembly, handling, welding, etc.

3.Aerospace: servo motors are used in aerospace equipment such as aircraft, satellites, and rockets to control key components such as engines and rudders to achieve precise attitude control and navigation.

4.Medical equipment: servo motors are used in medical equipment such as radiotherapy devices, surgical robots, and X-ray machines to improve the accuracy and safety of treatment.

‌5.Automotive industry‌: Servo motors provide precise control in automotive steering systems, brake systems, suspension systems and other applications, improving handling and safety performance.

‌6.Home appliances‌: Servo motors are used in household washing machines, air conditioners, vacuum cleaners and other equipment to precisely control movement, improving the intelligence and ease of use of products.

‌7.Entertainment equipment‌: Servo motors are used in game consoles, driving simulators and other equipment to provide a real sports experience.

‌8. Drones and models‌: Servo motors are used in drones, model aircraft, and remote control cars to precisely control flight attitude and rudders, improving the stability and controllability of the equipment.

Source:https://www.oyostepper.com/category-89-b0-Servo-Motors.html

Core technologies and application areas of CNC spindle motors

1.Definition of CNC spindle motors

CNC spindle motors refer to electric motors that are directly mounted on the spindle of a machine tool, and are usually integrated with the spindle of the machine tool to form an integral component. This type of motor directly drives the spindle to rotate, eliminating the traditional intermediate links such as belt drive and gearbox, thereby improving transmission efficiency and processing accuracy.

2.Working principle of CNC spindle motors

The working principle of CNC spindle motors is to convert electrical energy into mechanical energy to drive the tool for processing. When current passes through the electric spindle motor, a magnetic field is generated between the iron core and the coil inside the motor, causing the motor to rotate. The bearings and spindle box inside the motor will also rotate, driving the workpiece for processing.

3.Core technologies of CNC spindle motors

1.Electric spindle technology: The electric spindle is one of the core components of CNC machine tools, and its performance directly affects the processing accuracy and stability of the machine tool. High-performance electric spindles have great advantages in accuracy and stability, but the price is also relatively high.

‌2.Integrated Capto-C6 toolholder: This toolholder can be occasionally interrupted when the spindle is processing the workpiece, and another spindle can be used to replace the processing, thereby improving processing efficiency and accuracy.

‌3.Center-hole water-cooled toolholder: This toolholder helps the tool to maintain a low temperature at high-speed rotation through an internal cooling system, thereby improving processing accuracy and extending tool life.

‌4.HSK-63 toolholder: This toolholder realizes frictionless tool change, improves tool change speed and accuracy, and shortens machine tool downtime.

‌5.Direct drive technology: Direct drive technology reduces transmission links, improves transmission efficiency and accuracy, and is an important development trend of modern CNC machine tools.

‌6.High-precision measurement technology: High-precision measurement technology ensures the accuracy and stability of machine tools during processing, such as the use of high-precision measuring devices such as grating rulers.

4.Application fields of CNC spindle motors

‌1.Mold manufacturing: In the mold manufacturing industry, electric spindle motors are used to process complex mold cavities, which require high speed and high torque performance to ensure the quality and accuracy of the machining surface.

‌2.Automobile parts manufacturing: In the manufacturing of automobile parts, electric spindle motors are used to turn shaft parts, such as automobile half shafts, and need to provide stable rotation speed and high machining accuracy.

‌3.Bearing manufacturing: In bearing manufacturing, electric spindle motors are used to grind bearing rings. High speed can reduce grinding force and improve grinding surface quality.

‌4.Printed circuit board manufacturing: In the drilling process of printed circuit boards (PCBs), electric spindle motors drill holes at extremely high speeds to ensure the position accuracy and aperture accuracy of the holes.

‌5.CNC machine tools: Electric spindle motors are the core components of CNC machine tools, which are used to achieve high-speed precision machining and improve machining efficiency and accuracy.

‌6.Packaging equipment‌: In packaging equipment, electric spindle motors are used for precise control of winding and feeding, improving production efficiency and product quality.

‌7.Textile equipment‌: In textile equipment, electric spindle motors are used to control the accuracy of winding and unwinding, ensuring the stability of the production process.

‌8.Robotics‌: In the field of robotics, electric spindle motors are used for precise control of robotic arms, improving operational flexibility and accuracy.

‌9.3D printing equipment‌: With the development of 3D printing technology, electric spindle motors are also used in 3D printing equipment to improve printing accuracy and efficiency.

‌10.Medical equipment‌: In medical equipment, electric spindle motors are used for precision processing and operation to ensure the accuracy and reliability of surgical instruments and equipment.

‌11.Unmanned vehicles‌: In emerging fields such as unmanned vehicles, electric spindle motors are used to achieve precise control and operation, improving the intelligence level of equipment.

Source:https://steppermotor.pixnet.net/blog/post/172075162

Technical advantages of high temperature stepper motors

1.What is a high temperature stepper motor

High temperature stepper motors are motors specially designed to work in extremely high temperature environments and can maintain good performance in high temperature environments. ‌Compared with ordinary motors, high temperature stepper motors use special materials and designs to adapt to high temperature environments. These motors usually use high temperature resistant magnetic materials and special insulated wires to ensure that they will not demagnetize or be damaged at high temperatures.

2.The main structure of high temperature stepper motors

‌1.Stator structure‌: The stator of a stepper motor is usually stacked with high magnetic permeability silicon steel sheets to form multiple stator teeth. Two sets of coils are wound around these stator teeth, and a rotating magnetic field is generated by controlling the power-on timing of the coils to drive the rotor to rotate‌.

‌2.Rotor structure‌: The rotor is usually made of permanent magnetic material, and its structural design and material selection enable it to remain stable in high temperature environments. The design of the rotor enables it to withstand high temperature environments and will not be damaged by overheating‌.

3.Technical advantages of high temperature stepper motors

1.High temperature resistance‌: High temperature stepper motors use special materials and structural designs to operate normally under high temperature conditions and are not affected by ambient temperature. This type of motor usually uses high-temperature resistant materials and high-temperature resistant designs, can operate stably in high-temperature environments, and will not be damaged by overheating.

‌2.High-precision positioning: The high-temperature stepper motor has a high-precision positioning function and adopts advanced control technology to accurately control the rotation angle and movement speed of the motor to achieve precise position positioning. In a high-temperature environment, it can still maintain good positioning performance, providing reliable guarantee for high-precision operation.

‌3.Low noise and low vibration: The design of the high-temperature stepper motor not only takes into account the special requirements of the high-temperature environment, but also focuses on reducing the impact of noise and vibration. It adopts advanced vibration reduction technology and noise control measures, so that under high-temperature working conditions, the motor can still maintain a low-noise and low-vibration operating state, which is very important for high-temperature fields that require quiet and stable operation.

‌4.High-efficiency and energy-saving: The high-temperature stepper motor has the characteristics of high efficiency and energy saving, which can effectively reduce energy consumption and maintenance costs. This motor can still maintain efficient operation in a high-temperature environment, reducing energy waste and reducing the cost of use.

‌5.Easy to install and maintain: The high-temperature stepper motor has a simple and compact structure, is easy to install and maintain, and reduces the cost of use. This design makes the motor more convenient during installation and maintenance, reducing the frequency of maintenance and replacement of the motor.

‌6.Adapt to harsh environments: High-temperature stepper motors can be customized with special protection levels to adapt to harsh environments. It can adapt to various high-temperature application scenarios, such as ovens, furnaces, hot presses, hot air guns, etc., and can also operate stably in low-temperature environments.

4.Application fields of high-temperature stepper motors

‌1.Aviation field: In the aviation field, high-temperature stepper motors are mainly used for flight control, positioning and orbit control. Its high precision and low noise characteristics enable stable operation in high temperature and vacuum environments, ensuring the reliability and accuracy of the system.

‌2.Satellite field: In satellite systems, high-temperature stepper motors are used for positioning and orbit control, and can adapt to high temperature and vacuum environments to ensure the long-term stability and efficiency of satellite systems.

‌3.Industrial applications: In the industrial field, high-temperature stepper motors are suitable for various application scenarios that require high-temperature operation, such as ovens, furnaces, hot presses and hot air guns. Its high-temperature resistant design and high efficiency and energy saving characteristics enable stable operation in these environments, extend service life and reduce maintenance costs.

‌4.Laboratory environment‌: In special environments such as high-temperature laboratories, high-temperature stepper motors can work stably, provide precise control and positioning functions, and are suitable for various scientific research and experimental needs.

5‌.Extreme environment‌: In some extreme environments, such as high and low temperature alternation, low air pressure, salt spray and other environments, high-temperature stepper motors can also maintain stable operation, which is suitable for automated production needs in various complex environments.

Related articles:https://blog.udn.com/e429c9a1/181373719

Control method of linear stepper motor

1.Working principle of linear stepper motor

A linear stepper motor is a motor that drives a slider to move along a straight line through an electromagnetic field. Its working principle is mainly to generate an alternating magnetic field by alternately exciting electromagnets, and this magnetic field pushes the slider to move along a straight line. When one electromagnet is activated, the magnetic field it generates attracts the slider and moves toward it; when the other electromagnet is activated, the opposite magnetic field generated pushes the slider to move in the opposite direction. By alternately activating these two electromagnets, the slider can reciprocate along a straight line.

2.Structural characteristics of linear stepper motors

1.High precision: The direct drive structure has no backlash, the system accuracy mainly depends on the position detection element, and the appropriate feedback device can reach the sub-micron level.

2.High acceleration and speed: The linear motor has achieved an acceleration of 5.5g and a speed of 2.5m/s.

3.No mechanical contact wear: There is no mechanical contact between the stator and the mover, and the system motion contact is borne by the linear guide. There are fewer transmission parts, smooth operation, low noise, simple structure, simple maintenance, or even maintenance-free, high reliability, and long service life. 

‌4.Modular structure‌: The stator adopts a modular structure, and the running stroke is theoretically unlimited‌.

‌5.Strong adaptability‌: The primary core can be sealed as a whole with epoxy resin, which has good anti-corrosion and moisture-proof properties and is easy to use in harsh environments‌.

3.Control methods of linear stepper motors

1.Open-loop control‌: This is the most basic control method, which controls the position and speed by directly controlling the current size and direction. Its advantage is simple control, but its disadvantage is that the control accuracy is not high and it is easily affected by external interference‌.

2‌.Closed-loop control‌: By installing position feedback sensors such as encoders to obtain position and speed information, and then adjusting the motor current through the controller to achieve the purpose of controlling the position and speed of the motor. This method has high control accuracy, but the cost is high‌.

‌3.Full-step control‌: Each pulse signal causes the motor to rotate a full step angle, which is suitable for applications that require high-precision positioning‌.

‌4.Half-step control‌: Improved on the basis of full-step control, each pulse signal causes the motor to rotate half a step angle, with a faster speed but lower accuracy‌. ‌5. Microstepping control‌: By changing the pulse width or phase, the motor rotates with a smaller step angle, which is suitable for high-precision and high-dynamic applications.

‌6.Current control‌: By adjusting the current flowing through the motor to control the torque and speed, it is suitable for applications that require smooth rotation.

‌7.PID control‌: A feedback control method that adjusts the motor torque by measuring the error between the actual position and the target position, which is suitable for complex and high-dynamic applications.

‌8.Vector control‌: Using the motor mathematical model to optimize performance, it is suitable for applications with high performance and reliability requirements.

4.Precautions for installing linear stepper motors

1.Avoid disassembling motor components‌: During installation and maintenance, avoid disassembling any part of the motor by yourself, as disassembly may cause foreign matter to enter or affect assembly accuracy.

‌2.Protect the lead screw and lead wires‌: When installing and taking the motor, be careful not to lift, pull, or hold the lead screw directly with your hands to avoid radial force on the lead screw; at the same time, protect the lead wires of the motor and do not pull them hard.

‌3.Choose a suitable installation environment‌: Clean the site before installation to ensure that there are no debris and obstacles, check whether the foundation of the motor is firm, and the levelness and firmness must meet the requirements‌.

‌4.Avoid vibration and wiring errors‌: Avoid direct impact on the shaft during installation, and use a flexible connector to connect the encoder shaft; wiring should be done when the power is off, pay attention to the power polarity and line distribution, and avoid inductive noise‌.

‌5.Pay attention to the operating temperature of the motor‌: Ensure that the operating environment temperature of the motor is between -20℃~55℃ to avoid overheating of the motor due to long-term operation‌.

‌6.Correct installation and debugging‌: Select the appropriate motor specifications according to the installation environment and motion status, ensure that the installation is firm, the circuit connection is correct, and the voltage and current meet the requirements; adjust the motor speed and acceleration during debugging, and check the motor operation status‌.

By following these precautions, the service life of the linear stepper motor can be effectively extended and its operating efficiency and reliability can be improved.

How to adjust the dip switch of the stepper motor driver

‌1.Explanation of stepper motor driver

The stepper motor driver is an actuator that converts electrical pulses into angular displacement, which is mainly used to control the rotation and movement of the stepper motor. It realizes the drive of the motor by converting the control signal into the drive signal of the motor. The stepper motor driver is generally composed of a pulse generator, a power module, a signal decoder and a drive module. The pulse generator is used to generate a control signal (pulse signal) to control the movement of the motor; the power module provides power to the motor so that the motor can operate normally; the signal decoder converts the pulse signal into a motor drive signal to control the operation of the motor; the drive module is used to amplify the motor drive signal to provide sufficient power to drive the motor. ‌

2.Classification of stepper motor drivers

1.Voltage driver: It controls the speed and position of the stepper motor by changing the drive voltage. This driver is characterized by simple structure and low cost, but poor dynamic performance, easy to heat up and lose step.

‌2.Constant current driver: It drives the stepper motor by controlling the current to ensure that the current of the motor remains constant during operation. This type of driver is characterized by good dynamic performance and low heat generation, but the structure is relatively complex and the cost is high.

‌3.Microstep driver‌: It is a high-precision drive method that achieves more detailed position control by dividing the basic step of the stepper motor. This driver has the characteristics of high precision, low vibration and low noise, and is suitable for application scenarios with high precision requirements.

‌4.Closed-loop driver‌: By adding an encoder or other sensor to achieve real-time feedback on the position of the stepper motor, high-precision position control is achieved. This driver has the characteristics of high precision, high dynamic performance and low step loss rate, but the structure is relatively complex and the cost is high.

3.Reasons for stepper motor driver alarm

1.Power supply problems‌ are one of the common reasons for stepper motor driver alarms. This includes unstable power supply voltage, too high or too low power supply voltage, poor power supply line contact, and power switch failure. Solutions to these problems include checking whether the power supply voltage meets the requirements, adjusting the power supply voltage in time, repairing or replacing the power supply line contact, and checking and replacing the power switch‌.

2.Motor problems‌ may also cause stepper motor driver alarms, including motor damage, poor contact between the rotor and stator, and winding short circuit. Solutions to motor failures may include checking whether the motor is overheating and whether it needs to be replaced or maintained, such as cleaning and lubrication.

3.Control signal problems are also an important factor, including poor contact of the control signal line, controller failure, and unstable control signal voltage. Solutions to these problems may involve repairing or replacing the control signal line, checking and replacing the controller, and adjusting the control signal voltage.

4.Problems with the driver itself, such as a damaged or improperly adjusted driver, can also cause alarms. Solving these problems may require replacing the driver or adjusting the driver settings.

4.How to adjust the stepper motor driver dip switch

1.Understand the basic principles of stepper motor drivers

A stepper motor driver is an electronic device used to control stepper motors. It converts current into signals that the stepper motor can understand, thereby driving the motor to rotate precisely. Before adjusting the dip switch, you need to understand the basic principles of the stepper motor driver.

2.Determine the working mode and parameter settings

Before adjusting the dip switch of the stepper motor driver, you first need to determine the working mode and parameter settings. The working mode can be full-step mode, half-step mode or micro-step mode; parameter settings include step angle, acceleration, drive current, etc.

3.Consult the instruction manual of the stepper motor driver

Stepper motor drivers are usually equipped with an instruction manual, which contains detailed parameter settings and information about the dip switches. Before making adjustments, read the instruction manual carefully to understand the location and corresponding functions of the dip switches.

4.Locate and adjust the dip switches

According to the instruction manual of the stepper motor driver, locate the dip switches on the driver. Dip switches are usually a row of small switches that can be set to different functions and parameters by toggling. Before adjusting the dip switches, it is recommended to turn off the power supply to avoid short circuits or other damage to the circuit.

5.Adjust the dip switches as needed

Adjust the dip switches from one position to another as needed. When adjusting the dip switches, carefully check the information in the instruction manual to ensure that they are adjusted to the correct position. Some dip switches may have multiple options, while others may only have two options (on/off).

6.Start and test the stepper motor driver

After the adjustment is completed, reconnect the power supply and start the stepper motor driver. According to the working mode and parameter settings of the driver, perform corresponding tests to ensure that the motor can rotate as expected. If other parameters need to be adjusted, you can refer to the instruction manual again and repeat the above steps.

7.Test and application of the adjusted stepper motor driver

Once the dip switches of the stepper motor driver are successfully adjusted, some tests and practical applications can be performed. In the test, you can verify whether the set working mode and parameters are as expected. In the application, you can connect the stepper motor driver to the corresponding equipment or system to achieve the desired functions and performance.

Operation mode of integrated servo motor

1.Definition of integrated servo motor

Integrated servo motor‌ is a motor that integrates servo motor and driver. It has the characteristics of compact structure, easy installation and fast response speed. The integrated servo motor has a servo driver integrated inside it, which can directly receive signals from the controller and perform corresponding actions. Compared with traditional split servo motors, this design reduces the number of external connecting parts, further simplifying the installation and maintenance process of the system. In addition, due to the integrated design, the integrated servo motor also has significant advantages in performance, such as higher accuracy and faster response speed, thereby improving the overall performance and reliability of the system.

‌2.Components of integrated servo motor

1.Motor part‌: including rotor, stator, windings, magnetic poles and other components. There are various types of motors, such as DC servo motors, AC servo motors, stepper servo motors, etc. Each type of motor is different in structure and control method.

2.Sensor part: usually includes position sensor, speed sensor, torque sensor, etc., which are used to detect the position, speed, torque and other parameters of the motor in real time, and feed the detection results back to the control system for real-time adjustment.

3.Controller part‌: Usually composed of a control chip, amplifier, encoder, etc., used to receive parameters fed back by sensors and output control signals to the motor to control and adjust the position, speed, torque and other parameters of the motor. .

4.Power supply part‌: Usually composed of power transformer, rectifier, filter, etc., used to provide stable power supply voltage and current to ensure the normal operation of the motor.

5.Mechanical part‌: Usually composed of reducers, couplings, transmission devices, etc., used to convert the rotational motion output by the motor into linear motion or other specific motion forms to meet different application requirements.

3.Operation mode of integrated servo motor

1.Position mode‌: This is the most commonly used control mode for servo motors. The host computer sends high-speed pulses of a certain frequency and cooperates with the direction signal to realize the forward and reverse rotation of the motor. By adjusting the frequency of the pulses, the speed of the servo motor can be changed. The core of the position mode is the position closed-loop control system, which consists of position sensors, controllers, drives and motors. It uses PID control algorithm to achieve precise control of the motor position by adjusting the proportional coefficient, integral coefficient and differential coefficient. Position mode is widely used in situations that require precise positioning, such as CNC machine tools, robot joints, automated assembly lines, etc.

2.Speed ​​mode‌: Speed ​​mode uses analog quantities to control the rotation speed of the motor. Although speed mode has fewer applications because it can control speed with the same accuracy as position mode, it still has its uses in certain specific applications. The core of speed mode is the speed closed-loop control system, which consists of speed sensor, controller, driver and motor. It also uses PID control algorithm to eliminate speed deviation and make the motor shaft run at a constant or changing speed.

3.Torque mode‌: Torque mode is usually used in constant voltage control to control the output torque of the servo motor through analog quantities. This mode is combined with the position mode for closed-loop control, and the effect is more ideal. The control of torque mode is more complicated, and it is necessary to detect the output current of the servo drive and perform torque control based on the current feedback signal.

4.Application scope of integrated servo motor

‌1.Industrial automation‌: Integrated servo motors play a vital role in the field of industrial automation and are widely used in robotic arms, conveyors, assembly lines and other equipment. They realize efficient production processes and improve production efficiency and product quality through precise position control and motion control. The fast response and precise position feedback capabilities of servo motors enable it to adapt to complex industrial environments and task requirements‌.

2.Robot technology‌: Servo motors are an ideal choice for robot joint drive. They can provide high-performance power output and flexible motion control to meet the different needs of robots in various industries, services and special environments. In fields such as automated production lines and logistics warehousing, servo motor-driven robots can achieve efficient operations and automation tasks‌.

3.CNC machine tools‌: Integrated servo motors are widely used in CNC machine tools, which can achieve precise motion control and position control, provide high-speed, high-precision working performance, and meet the needs of modern manufacturing for equipment automation and intelligence‌.

4.Medical equipment‌: Servo motors are widely used in various medical equipment, such as medical robots, imaging equipment, surgical instruments, etc. The high precision and reliability of servo motors play a vital role in medical equipment, ensuring the stability and safety of medical equipment‌.

5.Aerospace‌: In the field of aerospace, servo motors are widely used in the steering gear system of aircraft to achieve attitude control and flight stability of the aircraft by controlling the rudder surface of the aircraft. The rapid response capability and precise control capability of the servo motor enable the aircraft to achieve various complex flight movements, ensuring flight safety and stability‌.

In addition, integrated servo motors are also used in medical equipment, 3D printing, textiles, printing and other industries. With the continuous development of technology, its application scenarios will continue to expand, providing more efficient and accurate solutions for various industries‌.

Application fields and advantages of five-phase stepper motors

1.Definition of five-phase stepper motors

A five-phase stepper motor is a motor powered by a five-phase AC power supply. Its structure is more complex than that of a four-phase stepper motor, and it can provide higher control accuracy and finer step lengths. This type of motor is usually used in application scenarios that require high-precision control, such as precision CNC machine tools, high-precision robots and other equipment. The working principle of a five-phase stepper motor is to control the power-on sequence of the five windings and the magnitude of the current to make the rotor produce different rotation angles, thereby achieving precise position control. Due to the high precision of the five-phase stepper motor, it has been widely used in high-precision automation equipment.

2.How to control the direction of the five-phase stepper motor

1.Change the direction of the current

The direction of the five-phase stepper motor can be achieved by changing the direction of the current. Usually, a five-phase stepper motor has two sets of coils, each with two pins, marked as A+, A- and B+, B-. If you want the motor to rotate clockwise, the current should enter the coil from A+ and B- and exit the coil from A- and B+; if you want the motor to rotate counterclockwise, the current should enter the coil from A- and B+ and exit the coil from A+ and B-.

2.Change the step sequence

Stepper motor control is actually controlling the step sequence of the motor. The step sequence of a five-phase stepper motor is AB-BC-CD-DE-EA. If you need to change the direction of the motor to the opposite direction, you need to change the step sequence. The method is to reverse the flow of current, that is, first energize the E and D coils, then energize the A and E coils, and so on.

3.Use a direction controller

If you don't want to change the connection method or step sequence in the circuit, you can also use a direction controller to change the direction of the five-phase stepper motor. The direction controller can add a reversing switch at the input or output of the motor control signal. When you need to change the direction, just switch the switch.

3.Advantages of five-phase stepper motors

1.Smooth motion and high resolution: The five-phase stepper motor makes the rotation of the stepper motor smoother by introducing more phases, reduces vibration and noise, and improves the stability of the mechanical system. It can achieve a smaller step angle and improve the resolution of the stepper motor through microstepping, which is very useful for applications that require precise positioning and control. 

2.Low speed and high torque: The five-phase stepper motor can provide higher output torque at low speed, which is very beneficial for some applications that require low speed and high torque output, such as medical equipment and precision instruments. 

3.Reduce resonance and high-speed performance: At certain frequencies, stepper motors may resonate, resulting in unstable motion. Five-phase stepper motors can effectively reduce resonance and improve the smoothness of the system's motion. At the same time, it can better control the motor at high speed and reduce the possibility of losing steps, which is very important for applications that require high-speed motion, such as printing presses and CNC machine tools. ‌

4.High efficiency: By better controlling the phase of the motor, the five-phase stepper motor can achieve the same output power at a lower current, thereby improving the energy efficiency of the system. ‌

5.Strong adaptability: The five-phase stepper motor driver is suitable for various stepper motors, including different types of motors such as bipolar, quadrupole and octapole, and has a wide range of applicability. ‌

4.Application fields of five-phase stepper motors

1.Automation equipment and instruments: The five-phase hybrid stepper motor is suitable for various small automation equipment and instruments, such as pneumatic marking machines, labeling machines, cutting machines, laser marking machines, plotters, engraving machines, CNC machine tools and pick-and-place devices. In these applications, the five-phase stepper motor can provide low vibration, low noise, high precision and high speed performance to meet user needs. ‌

2.Precision CNC machine tools and high-precision robots: Due to its high-precision characteristics, the five-phase stepper motor is widely used in high-precision automation equipment such as precision CNC machine tools and high-precision robots. These devices have high requirements for precision and performance. Five-phase stepper motors can provide finer steps and higher control accuracy to ensure accurate operation of the equipment. 

3.Industrial automation, machine tools, printing presses: Five-phase stepper drives are mainly used in industrial automation, machine tools, printing presses and other fields, with precise angle and speed control as the main features. These application areas require stepper motors to provide stable and reliable operation and precise position control. 

4.Textile machinery and equipment: Stepper motors are widely used in textile machinery and equipment, such as computer embroidery machines. In particular, five-phase hybrid stepper motors use high-phase stepper motors to reduce step angles and improve control accuracy. They are suitable for applications with smooth operation, low noise, fast response and long service life. 

5.Conclusion 

As a special stepper motor, the five-phase stepper motor has the advantages of high precision, high efficiency and low noise. Its working principle, circuit structure and control method are different from those of traditional stepper motors, but its application range is wider. In the future, with the continuous advancement of science and technology and people's increasing demand for high-precision intelligent equipment, five-phase stepper motors are expected to be used in more fields.