Mark Liu

Mark Liu
Member since Jan 11, 2022

by Mark Liu on Feb 18, 2024

Crafts

14 Views

Firstly, you can perform the following steps to troubleshoot the problem: 1. Double-check all the wiring. You may need to refer to the manuals of both the stepper motor and driver. Note: It's better to test the motor and driver separately instead of installing them in your production equipment to eliminate other interfering factors. Note: The wire colors in the picture are for display only. For the actual correct wiring sequence, please refer to the motor drawing ! 2. Check if the power voltage and signal voltage of the driver are correct. In particular, make sure the signal voltage set by the driver matches the voltage provided by the controller. According to our feedback records, 40-50% of the motors do not turn because of this reason. Because the control signal voltage is 5V, and the driver defaults to 24V. 3. Try disconnecting the ENA+/- interface if you have connected it. 4. Power on the driver without sending any pulse signals and check whether the motor is locked. ... Continue reading →

by Mark Liu on Feb 18, 2024

Crafts

14 Views

Stepper motors are known to vibrate or resonate at certain speeds, especially at low speeds. At low speeds, the motor's motion is more like a stepper, with the motor's rotor tending to oscillate back and forth between each step. This oscillation causes mechanical resonance in the motor components such as the rotor, shaft and bearings. Resonance can cause the motor to vibrate, resulting in loss of torque and precision. For a given stepper motor, its resonance problem is difficult to eliminate, but there are some methods to reduce the vibration to a certain extent. 1. Stay away from the resonance zone Since the motor only exists in a certain resonance area, the motor should be avoided to run near the resonance area. When the motor accelerates from a lower resonance area, it should accelerate as fast as possible, away from the resonance area, and reduce vibration. 2. Increase the subdivision of the driver The larger the subdivision, the smaller each step of the motor will ... Continue reading →

by Mark Liu on Jan 8, 2024

Product Reviews

32 Views

In electrical equipment such as stepper motors, closed-loop motors, and servo motors, equipment using different insulation materials has different abilities to withstand high temperatures. Therefore, general motors have a maximum allowable temperature for their operation. Now let’s take a look at insulation materials and the temperatures they withstand. Class A insulation materials: including impregnated cotton yarn, silk, paper and other organic fiber materials, as well as enamel on ordinary enameled wires, etc., and are currently only used on transformers. The maximum allowable operating temperature is 105°C. The temperature rise of the wire group is 60℃, and the performance reference temperature is 80℃. Class B insulation materials: including mica, asbestos, glass fiber and other organic matter; materials and compositions made of organic paint or resin with improved heat resistance as a binder; enamel on polyester high-strength enameled wire; maximum allowable ... Continue reading →

by Mark Liu on Jan 2, 2024

Product Reviews

23 Views

1. The difference between inductive brushless motor and non-inductive brushless dc motor. The sense of brushless in refers to the "Hall sensor", so what is "Hall"? Hall refers to the Hall effect. Simply put, when the current is perpendicular to the external magnetic field through the conductor, there will be a potential difference between the two ends of the conductor perpendicular to the direction of the magnetic field and the current. Through the Hall effect, it is easy to know whether the motor is running at high speed or low speed. It can be seen that the non-inductive brushless motor is a brushless motor without Hall sensor feedback, which indirectly detects the rotor position commutation through the voltage and current changes in the motor winding. 2. Inductive brushless motor and non-inductive brushless motor characteristics Inductive motor can know the position of the rotor when it is at rest, and the non-inductive motor needs to rotate to determine the ... Continue reading →

by Mark Liu on Jan 2, 2024

Product Reviews

29 Views

The structural differences are:   A linear motor, also called a linear motor, is a mechanical device that converts rotational motion into linear motion. From the perspective of motion principles, to convert a stepper motor from rotational motion to linear motion, the simplest design is to integrate the screw nut into the stepper motor, and realize the entire linear transformation inside the motor. This method greatly simplifies the entire structural design, and in many application fields can directly use linear motors for precise linear transmission without installing external mechanical linkage devices. The basic principle is to install a nut in the center of the rotor of the linear motor, and accordingly use a screw rod to mesh with the nut. In order to move the screw rod forward and backward, some method must be used to prevent the screw rod and the rotor assembly from rotating together. Since the rotation of the screw is constrained, the screw achieves linear motion when the ... Continue reading →

by Mark Liu on Jan 2, 2024

Product Reviews

23 Views

Encoders, reducers, brakes, and other configurations are added to stepper motors to enhance their performance, range of applications, and other aspects of their design. So what exactly is a stepper brake motor? The purpose of the so-called braked stepper motor is to equip the stepper motor's tail with a brake mechanism. The braking device separates from the stepper motor output shaft when the motor is powered on, enabling the motor to function normally. The brake is also powered on when the stepper motor is. The brake releases forcefully to grasp the motor shaft when the power is cut off. Learn why it's important to start and stop a stepper motor frequently to make sure it's locked or powered on when it's not. What are brake stepper motor characteristics? Stepper motors can precisely convert electrical energy into mechanical energy to achieve angular or linear displacement. They are powered by electromagnetic force. It responds rapidly, rotates smoothly, and steps with ... Continue reading →

by Mark Liu on Dec 25, 2023

Product Reviews

17 Views

For the maintenance of servo motor control systems, the following are some common considerations: (1) Clean the servo motor and controller regularly to ensure that their surfaces are clean and to prevent dust, oil and other impurities from entering the equipment. Cleaning can be done with a soft brush or a hair dryer, but be careful not to damage electrical components. (2) Regularly check whether the cable connection is firm to avoid looseness or poor contact. If damaged or frayed cables are found, they should be replaced promptly. (3) Lubricate and maintain the bearings and transmission components of the servo motor regularly. Use appropriate lubricants and follow correct lubrication methods and cycles. (4) Ensure that the operating temperatures of the servo motor and controller are within the normal range. Avoid excessive temperatures that may cause motor overheating or controller failure. If necessary, a radiator or fan can be installed to reduce the temperature. (5) Regularly ... Continue reading →

by Mark Liu on Dec 25, 2023

Product Reviews

19 Views

servo motor is a common industrial motor that often appears in various fields such as automated production lines, machining centers, medical equipment, and semiconductor equipment. This kind of motor has the advantages of high precision, high speed, and high anti-interference. In order to ensure the normal operation of the servo motor and extend the service life of the servo motor, its maintenance and upkeep work is particularly important. To do this we need to do the following things. 1. Regularly check the contact and appearance of the motor cable, especially at the interface where the wire enters the servo motor, because interruptions or disconnections may occur during movement. 2. Regularly check the contact of the motor torque cable and maintain good contact. You can insist on checking once every three months. 3. Regularly check the interface between the motor and the power module and ensure that the connection is firm. 4. Check the servo motor system regularly and keep it clean. ... Continue reading →

by Mark Liu on Dec 20, 2023

Product Reviews

25 Views

A. Before you plan to remove the bldc motor, you need to clean the motor surface dust, and wipe the surface dirt clean. B. Select the working place suitable for motor disintegration and clean up the site. C. Familiar with motor structure characteristics and maintenance technical requirements. D. Prepare the tools (including special tools) and equipment needed to disassemble the motor. E. In order to further understand the defects in the operation of the motor, you can do an inspection test before disassembly if possible. To this end, the motor is put on the load test, check the temperature, sound, vibration and other conditions of each part of the motor in detail, and test the voltage, current, speed, etc., and then disconnect the load, do a separate no-load inspection test, measure the no-load current and no-load loss, and make a record. F. Cut off the power supply, remove the external wiring of the motor, and make a record. G. Select a suitable voltage megohm meter to test the motor ... Continue reading →

by Mark Liu on Dec 18, 2023

Product Reviews

25 Views

When using T6 servo motor, if jitter occurs, you can eliminate it through the following methods. When the brake is open, the mechanical installation is balanced, the coupling does not shift, the gear meshes well, the encoder wiring is correct, and there is no interference, adjust the inertia, rigidity and other parameters of T6. 1. The wiring is correct (the motor will be automatically recognized by the driver). 2. Use the “operation test” to test whether the motor is running normally. 3. Set the Pr400 value (external servo on signal Pr400=83; internal signal Pr400=3). 4. Select the control mode Pr0.01. (0: Position mode, 1: Speed mode, 2: Torque mode). 5. Connect the motor to the load and adjust the inertia ratio (Pr0.04). Before setting other parameters (such as PID settings for position loop or speed loop), it is very important to find out the inertia ratio of each axis so as to obtain the best performance. If an axis needs to be tested, connect the motor to ... Continue reading →

by Mark Liu on Dec 18, 2023

Product Reviews

24 Views

When using T6 servo motor, if jitter occurs, you can eliminate it through the following methods. When the brake is open, the mechanical installation is balanced, the coupling does not shift, the gear meshes well, the encoder wiring is correct, and there is no interference, adjust the inertia, rigidity and other parameters of T6. 1. The wiring is correct (the motor will be automatically recognized by the driver). 2. Use the “operation test” to test whether the motor is running normally. 3. Set the Pr400 value (external servo on signal Pr400=83; internal signal Pr400=3). 4. Select the control mode Pr0.01. (0: Position mode, 1: Speed mode, 2: Torque mode). 5. Connect the motor to the load and adjust the inertia ratio (Pr0.04). Before setting other parameters (such as PID settings for position loop or speed loop), it is very important to find out the inertia ratio of each axis so as to obtain the best performance. If an axis needs to be tested, connect the motor to ... Continue reading →

by Mark Liu on Dec 18, 2023

Product Reviews

26 Views

Cause of motor heating For any motor icluding sevomotor spindle motor, brushless dc motor,etc,It is normal to heat up during operation, and the same is true for stepper motors. The interior of the stepper motor is composed of an iron core and a winding coil. The resistance of the operation and maintenance winding exists, and the current flowing through the motor will cause loss. The loss is proportional to the square of the resistance and the current, which is called "copper loss". In addition, there is a hysteresis eddy current effect in the iron core, and losses will also occur in the alternating magnetic field. Its size is related to material, current, frequency and voltage, which is called "iron loss". Both copper loss and iron loss will be expressed in the form of heat, affecting the efficiency of the motor. Because stepping motors generally pursue positioning accuracy and torque output, they have low efficiency and large current. The harmonic component is ... Continue reading →

by Mark Liu on Dec 13, 2023

Product Reviews

19 Views

Stepper drivers are very important for the normal operation of stepper motors and brushless DC motors, so in order to make the motor work better, we need to understand the stepper driver. Today, let us first take a look at the signal output ports ALM and BRK of the driver. Please note that if you only control stepper motor operation, then you do not need to connect ALM and BRK. Because they are only used to output signals and are not used to control the motor. Here are some descriptions of these two ports: 1.ALM ALM is the alarm signal output port. When using it, it needs to be connected to the signal receiving end of the driver. There are two wiring methods for the ALM port, as shown below: When the driver sends an alarm, the internal switch between ALM+ and ALM- is closed and an alarm signal is output to the controller. 2.BRK BRK is the brake signal output port. When using it, you need to connect the relay and the brake of the motor. The wiring method is as follows: When the driver ... Continue reading →

by Mark Liu on Dec 13, 2023

Writing & Speaking

27 Views

What Servo System Means Greek-derived ServoMechanism is the source of the acronym Servo, which means slave. As the term implies, it denotes a situation in which the movement elements—position, speed, torque, and other quantities—are performed by the system by means of external instructions. A servo system, sometimes referred to as a follow-up system or servomechanism, is a feedback control system that is used to precisely track or replicate a particular process. With the help of an automatic control system called a servo system, controlled quantities like an object's position, orientation, and state can be output while the input target (or given value) is changing.Its primary function is to increase, transform, and regulate power in accordance with the control command's specifications, allowing the drive device to output torque, speed, and position control that is incredibly convenient and versatile. Main Function 1. Use low-power command signals to control ... Continue reading →

by Mark Liu on Dec 4, 2023

Product Reviews

22 Views

An essential tool for determining the motor's speed and angular displacement is the servomotor encoder. However, frequent use or other factors could cause the encoder to malfunction. This post will discuss a few typical servo motor encoder problems and offer helpful maintenance advice. 1. Encoder signal loss: This can be brought on by a malfunctioning encoder, a damaged cable, or a bad cable connection. Replacing damaged cables, inspecting and re-connecting cables, and changing the encoder are some solutions. 2. Inaccurate encoder readings: This could be brought on by a dirty, damaged, or improperly calibrated encoder. Replacing the malfunctioning encoder, performing error calibration, and inspecting and cleaning the encoder are some solutions. 3. Vibration or noise from the encoder: This could be the result of a loose, unsteady, or broken encoder. Reinstalling the encoder, tightening it up, or changing the damaged encoder are some solutions. 4. Encoder ... Continue reading →

by Mark Liu on Dec 4, 2023

Product Reviews

22 Views

It is not the same as stepper motor speed regulation, which works on the basis of rotating a step angle each time a signal is received. Instead, stepper motor speed regulation uses a technique called frequency speed regulation, in which the motor's speed is adjusted by varying the pulse signal's frequency. The speed of the motor cannot be altered by adjusting the pulse signal voltage.),the brushless motor (bldc motor​) has three speed adjustment methods:   1. Voltage speed regulation: Generally, a brushless motor is matched with a driver. By changing the output voltage of the driver, the input voltage of the brushless motor can be controlled to adjust the motor speed.   2. PWM speed regulation: PWM speed regulation uses pulse width modulation to modulate the constant DC power supply voltage into a pulse voltage sequence with a constant frequency and variable width, so that the average output voltage can be changed to adjust the motor speed. The speed can be adjusted ... Continue reading →

by Mark Liu on Nov 28, 2023

Writing & Speaking

24 Views

The servo motor is an industrial control actuator with precise displacement. It can be used in almost all kinds of industrial control projects. Let's now quickly examine the following areas of application for servo motors: 1. Automated production line: Servo motors can be utilized for automated product packaging/bottling and labeling, as well as for assembly lines, robotic arms, handling equipment, etc. 2. Logistics and transportation sector: For instance, numerous AGV vehicles are utilized for the deployment and transportation of goods in sizable storage warehouses, and their movement and steering are facilitated by servo motors. 3. Production and processing of microelectronics: For instance, servo motor-driven mechanical arms are needed to produce different kinds of chips. 4. Robotics: A crucial component of robot technology are servo motors. They are utilized for robots' arm movement, joint drive, etc. Robots now have more flexibility and accuracy thanks to their ability to ... Continue reading →

by Mark Liu on Nov 28, 2023

Writing & Speaking

25 Views

The following are the reasons brushless motors are superior to brushed motors: 1. Brushless motors operate more quickly than brushed ones. Since brushless motors are more efficient than brushed motors, they will operate faster even when their ratings are equal. Because a brushless motor's speed is determined by its speed controller and bearings. A brushless motor can operate at maximum speeds because it produces less heat and friction due to its lack of brushes, whereas the commutator and brushes of a brushed motor restrict the speed of the latter. 2. The efficiency of brushless motors is higher Brushless motors have an efficiency of over 85% to 90%, while brushed motors have an efficiency of 75% to 80%. Brushless motors make efficient use of the energy supplied because they have minimal mechanical energy losses due to the absence of brushes. Brushless motors are more efficient than brushed motors for this reason.     3. The lifespan of brushless motors is longer The ... Continue reading →

by Mark Liu on Nov 20, 2023

Writing & Speaking

25 Views

The difference in a nutshell is:   Brushed DC Motor fixed a set of carbon brushes on the rotor in contact with the AC excitation of the electrode, to provide the rotor required electromagnetic field;   The rotor of the Brushless DC Motor does not have a fixed carbon brush, and the rotor generates an electric field by controlling a controller via a sensor. Advantages and disadvantages of brushless DC motor   Advantages:   1. Electronic commutation has always replaced the traditional mechanical commutation, reliable performance, low failure rate;   2. Static motor, small no-load current;   3. Parts wear less, long life, no need to replace the brush;   4. Can move at a higher speed;   5. With high efficiency and small size volume, it is suitable for light, small, high-speed modular and integrated applications.   Cons:   1. There is slight vibration when starting at low speed. If the speed increases and the commutation frequency increases, ... Continue reading →

by Mark Liu on Nov 20, 2023

Writing & Speaking

32 Views

  BLDC Motor(Dc brushless motor) has the advantages of high power density, high efficiency and long life compared with ordinary traditional motor. Dc brushless motor has simple structure, few components, so it is easy to maintain and has a long service life. It is now widely used in robots, automated production lines, medical equipment, automobiles and other fields. Key factors in choosing a DC brushless motor:   1. Rated torque and rated current of the motor   This is one of the most basic parameters of the DC brushless motor, the rated torque and rated current of the motor can reflect the ability and performance of the motor. In the selection, it is necessary to determine the required torque and current according to the specific use requirements.   2. Speed range of the motor   The speed range of the DC brushless motor is generally wide, generally from hundreds to tens of thousands of revolutions, so the selection needs to determine the speed range according ... Continue reading →

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