There are two main control methods of DC servo motor: one is armature voltage control, that is, under the condition that the stator magnetic field remains unchanged, the speed and output torque of the motor are controlled by controlling the voltage signals applied to both ends of the armature winding; The other is excitation field control, that is, by changing the magnitude of the excitation current to change the stator magnetic field strength, so as to control the speed and output torque of the motor.
When the armature voltage control mode is adopted, because the stator magnetic field remains unchanged, the armature current can reach the rated value, and the corresponding output torque can also reach the rated value, so this method is also called the constant torque speed regulation mode.
When the excitation magnetic field control mode is adopted, because the magnetic field of the motor is close to saturation under the rated operating conditions, the speed of the motor can only be changed by weakening the magnetic field. Because the armature current is not allowed to exceed the rated value, with the weakening of the magnetic field, the speed of the motor increases, but the output torque decreases, and the output power remains unchanged, so this method is also called constant power speed regulation.
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The basic concept of human-machine interface - Buke
Hmi:
Human-machine interface refers to the field in which man and machine contact or interact with each other in information exchange and function, or the human-machine interface mentioned in the interface.
Information exchange, functional contact or mutual influence, refers to the hard contact and soft contact between man and machine, this combination includes not only dots and lines...
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Buke motor - installation method of frameless motor
1. Install the rotating shaft on the equipment casing, and the spindle and the equipment casing are supported by bearings.
2. Install the stator on the stop of the equipment housing and press it with the stator pressure ring.
3. Put the rotor into the inner hole of the stator, pay attention to protect the stator at the same time, and use the connecting bolt to connect the rotor with the ...
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Buke servo motor - precautions for servo motor encoders
Do not apply direct impact to the shaft during installation.
The connection between the servo motor encoder shaft and the machine should use flexible connectors. When attaching connectors to the shaft, do not press them in. Even if a connector is used, it is possible to add a load greater than the allowable load to the shaft due to poor installation, ...
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Buke touch screen - touch screen touch no response fault causes and treatment methods
Cause of the failure
1) The sound wave reflection stripes on the four periphery of the surface sound wave touch screen are seriously dusty or scale, resulting in the touch screen not working.
2) The touch screen is malfunctioning.
3) The touch screen control card is faulty.
4) The touch screen signal line is faulty ...
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Buke HMI - What principles should be considered in the design of HMI?
1. The basic design principle of user-centered
In the design process of the system, the designer should grasp the characteristics of the user and discover the user's needs. In the whole development process of the system, it is necessary to continuously solicit the opinions of users and consult with users. The design decision of the system should be combined with the user's work.
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Buke servo motor - servo motor encoder selection attention
One. SERVO MOTOR DIMENSIONS: 38MM, 58MM, 66MM, 80MM.100MM.
Two. Servo motor encoders are divided into: singleturn, multiturn.
Three. Servo motor encoders are divided into magnetic absolute encoders and photoelectric absolute encoders according to the principle
Four. Servo motor ...
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Buke servo motor - the structural composition of the servo system
1. Comparison link
The comparison link is to compare the input command signal with the feedback signal of the system to obtain the deviation signal between the output and the input, which is usually implemented by a special circuit or computer.
2. a controller
The controller is usually a computer or PI...
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The solution to the fault code 400.0 of the Buke CD420 servo drive
1. Check whether the power supply voltage is stable and whether the logic voltage is within the input range of the driver, and use a separate power supply to supply power to the logic circuit;
2. The target current limit is set too small, and the current limit is increased within the allowable range. If you still can't find the reason for the above solutions, please ...
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The reason for the maintenance failure of the Buke servo motor that is shut down due to pollution
1. Bearing lubrication failure or bearing surface damage
Contaminants can disrupt bearing lubrication and damage bearing surfaces. This will cause the friction to generate heat. If the problem cannot be solved, the increased heat may cause a catastrophic failure of the bearing and the Buke motor to stop running.
2、 ...
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Focusing on the field of logistics sorting, the fifth-generation AC servo drive of Buke is listed!
Since the new crown epidemic, the rapid growth of e-commerce has made the overall scale of China's express delivery industry grow rapidly, according to incomplete statistics, the business volume in 2020 has exceeded 80 billion pieces. Due to the growth of express delivery business volume, the automatic sorting efficiency of express delivery and parcels is becoming higher and higher.
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Buke servo motor - 6 major debugging steps of servo motor
1. Initialize parameters
Before wiring, initialize the parameters. On the control card: Select the controller
Style; Reset the PID parameter to zero; When the controller card is powered on, the enable signal is turned off by default, and this state is saved to ensure that the controller card is powered on again and the time force is in this state.
Serving ...
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Buke servo motor - AC servo motor maintenance method
1. Please ensure that the environment is clean and avoid oil. When used in dusty and humid places, although the protection level of the servo motor is very high, it will be easy to cause problems if it is often used in such an environment.
2. Regularly check the use of the servo motor to see if there is any damage outside.
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Buke servo motor - common fault causes and maintenance methods of servo motor encoders
1. Start the servo motor before work
(1) Measure the insulation resistance (0.5M or more for low-voltage motors).
(2) Measure the power supply voltage, check whether the wiring of the motor is correct, and whether the power supply voltage meets the requirements.
(3) Check whether the starting device is normal.
( ...
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Buke servo motor - how to care for and maintain servo motor
1. Regularly check the encoder connection line of the servo motor and the power connector of the servo motor to confirm that they are firmly connected;
2. If the servo motor is connected to a reduction gear, the servo motor should be sealed with oil to prevent the oil from the reduction gear from entering the servo motor.
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Buke servo motor - the working principle and function of servo motor encoder
1. The working principle of servo motor encoder
It is a rotary sensor that converts rotational displacement into a series of digital pulse signals that can be used to control angular displacement, and can also be used to measure linear displacement if the encoder is combined with a gear bar or spiral screw.
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Buke servo motor - a common fault of AC servo motor
1. Bearing failure is one of the most common motor failures. As the most important consumable part in servo motors, more than half of the failures of servo motors are usually caused by bearing problems. Its specific manifestations are varied, from jitter and abnormal noise when the motor rotates to the jamming of the motor shaft. Value...
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Buke servo motor - the difference between AC servo motor and stepper motor
The stepper motor is a discrete motion device, which is intrinsically related to modern digital control technology. In the domestic digital control system, the stepper motor is widely used. With the advent of all-digital AC servo systems, AC servo motors are also increasingly used in digital ...
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Buke servo motor - the starting method of single-phase AC motor
The first type, the split-phase starting type, as shown in Figure 1, is assisted by an auxiliary starting winding, and its starting torque is not large. The operating rate remains roughly constant. It is mainly used in electric fans, air conditioning fans, motors, washing machines and other motors.
Second, when the motor is stationary, the centrifugal switch is connected to the ...
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Buke servo motor - what are the advantages of AC servo motor?
1. High efficiency
Due to its unique speed-torque capability, AC motors offer the highest efficiency for many applications, which allows them to run a wide range of applications while minimizing heat, wear, or degradation. Therefore, AC motors are often used to form large ...
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Buke servo motor - the maintenance method of the motor
1. Clean the motor and remove the dust and sludge outside the motor base in time. If there is a lot of dust in the environment, it is best to clean it once a day.
2. Check and wipe the motor terminals. Check whether the junction box wiring screws are loose or burned.
3. Check the screws of each fixing part, ...
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