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.
2. The role of servo motor encoder
For high-precision positioning, it is basically common to use pLC to send out pulses to achieve the positioning effect through the private server driver, and the encoder behind the private server motor can feedback the stroke of the servo motor and compare it with the pulse sent by the PLC, so as to achieve a closed-loop system. The servo motor is just a motor that accepts commands to complete a certain action, and ordinary motors can also be used as servo motors, so there are many types of servo motors; Servos are much more complicated. The DC motor plus the encoder, plus the encoder is just to achieve the closed-loop link, and the servo system has many details to control, such as torsion, over-torque.
After the encoder generates the electrical signal, it is processed by the digital control CNC, programmable logic controller PLC, control system, etc. These sensors are mainly used in machine tools, material processing, electric motor feedback systems, and measurement and control equipment. In ELTRA encoders, the angular displacement is converted using the principle of photoelectric scanning. The reading system is based on the rotation of the radial indexing dial, which consists of alternating translucent and opaque windows. The system is all illuminated vertically by an infrared light source, which projects the image on the disc onto the surface of the receiver, which is covered with a grating called a collimator, which has the same window as the disc. The receiver's job is to feel the light changes caused by the rotation of the disc, and then convert the light changes into the corresponding electrical changes. In general, a rotary encoder can also obtain a speed signal, which is fed back to the inverter to adjust the output data of the inverter. Fault phenomenon: 1. When the rotary encoder is bad (no output), the inverter cannot work normally, and it becomes very slow, and the inverter is protected for a while, and the display of "PG is disconnected". Joint actions to work. In order for an electrical signal to rise to a higher level and generate a square wave pulse without any interference, this must be handled by electronic circuits. Encoder PG wiring and parameters The connection between the vector inverter and the encoder PG must correspond to the model of the encoder PG. Generally speaking, the encoder PG model is divided into three types: differential output, open-collector output and push-pull output, and the signal transmission mode must take into account the interface of the inverter PG card, so the appropriate PG card model or setting is reasonable.
|
More on that
|
Buke touch screen - daily maintenance and main matters of touch screen
Daily maintenance of the touch screen:
1. The capacitive touch screen should generally be filmed, and it should be pasted well. membranes (double-layer membranes) that meet ESD standards;
2. The capacitive touch screen is cleaned regularly, and the liquid crystal cleaning solution used for the computer is used (alcohol and furniture cleaning liquid cannot be used);
3. Transport...
|
|
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.
...
|
|
What are the characteristics of Buke servo motor - AC gear reducer?
1. AC motors are cheaper to manufacture.
2. With the development of vector frequency conversion technology, it has been possible to simulate direct current with frequency conversion motors
3. Compared with DC motor, it has enough advantages in simple structure, easy maintenance, low environmental requirements, energy saving and improved productivity.
|
|
Buke servo motor - the output signal of the servo motor encoder
1. OC output: It is commonly said that the triode output, and the input impedance and circuit circuit need to be considered for connection.
2. Voltage output: In fact, it is also a format of OC output, but it has a built-in active circuit.
3. Push-pull output: the interface is easy to connect, no need to consider NPN and PN ...
|
|
Common problems of Buke servo motor
Common problems of Buke servo motors
Why does the Kinco servo always display "Encoder counting" fault alarm?
The first thing to check is:
Whether the encoder cable is connected correctly.
Whether the encoder cable is threaded with the motor cable or other AC cables...
|
|
Buke servo motor - what are the daily maintenance tasks of servo motor?
The servo motor can control the speed, the position accuracy is very accurate, and the voltage signal can be converted into torque and speed to drive the control object. The rotor speed of the servo motor is controlled by the input signal, and can respond quickly, in the automatic control system, used as an actuator, and has an electromechanical time constant...
|
|
Buke human-machine interface - the basic functions and selection indicators of human-machine interface products
1) The working status of the equipment is displayed;
2) Data and text input operation, printout;
3) Production formula storage, equipment production data recording;
4) simple logical and numerical operations;
5) It can be connected to a variety of industrial control equipment networking.
...
|
|
Buke servo drive - the wiring method of the stepper driver and PLC
1. First of all, the first step is to power the 24V power supply: brown positive blue negative yellow and green wire.
2. Then it is necessary to connect the two sets of wires of the motor to the A+ A-, B+ B- of the driver.
3. Then connect the 24v power supply-v to the GND of the driver.
4. And then ...
|
|
Buke human-machine interface - the basic function of human-machine interface products
1) The working status of the equipment is displayed;
2) Data and text input operation, printout;
3) Production formula storage, equipment production data recording;
4) simple logical and numerical operations;
5) It can be connected to a variety of industrial control equipment networking.
...
|
|
Buke servo motor - what is the impact on the operation of the servo motor of the fiber laser cutting machine?
Fiber laser cutting machine has been widely accepted by the society and used in many industries, welcomed by customers, helping customers improve production efficiency and improve product competitiveness. But at the same time, we don't know much about the functions of the machine components, so today we will talk about fiber lasers.
|
|
Principle and classification of stepper motor drivers
A stepper motor driver is an actuator that converts electrical impulses into angular displacement. When the stepper driver receives a pulse signal, it drives the stepper motor to roll a fixed viewpoint (called the "step angle") in the set direction.
|
|
Common fault causes and solutions for Buke servo motor maintenance
6. The motor vibrates greatly during operation
(1) The cause of the failure
(1) Due to excessive clearance of worn bearings;
(2) uneven air gap;
(3) Rotor imbalance;
(4) Bending of the rotating shaft;
(5) The coaxial axis of the coupling (pulley) is too low.
(2) Troubleshooting
...
|
|
The kick-off meeting of the organizational reform project of Buke Co., Ltd. was a complete success!
On December 17, Buke Co., Ltd. and Willis Towers Watson (formerly Torrei Watson, the world's leading professional services company) held the "Buke Co., Ltd. Organizational Reform and Upgrade Project Kick-off Meeting". Xu Changliang, Chief Consultant of Willis Towers Watson, Sheng Shaoqin, Partner of Willis Towers Watson, Tang Dong, Chairman of Buke Group, Bu...
|
|
Buke servo motor - the detailed steps of the zero point adjustment of the servo motor encoder
1. Remove the damaged encoder
2. Install a new encoder on the damaged motor
3. Find the Z signal and two power cords according to the figure, the general power supply is 5V.
4. Prepare a 24V and 5V output switching power supply with a slightly modified open circuit alarm and ...
|
|
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...
|
|
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 ...
|
|
Buke servo motor - servo motor encoder fault and maintenance
(1) Encoder failure: It refers to the failure of the components of the encoder itself, resulting in its inability to generate and output correct waveforms. In this case, the encoder needs to be replaced or its internal components repaired.
(2) Encoder connection cable failure: the probability of this fault is the highest, and the maintenance ...
|
|
Buke motor - the characteristics of frameless motor
Frameless torque motor is a new type of direct-drive torque motor, which is designed for applications that require small size, light weight, low inertia, low cogging torque, and high power.
High reliability - no mechanical transmission, long life and easy installation.
Serialized products are not limited to the following types ...
|
|
Buke servo motor - the fault and maintenance method of servo motor encoder
A servo motor encoder failure means that the encoder component is faulty, preventing it from generating and outputting the correct waveform. In this case, the method of repair is to replace the encoder or repair its internal parts.
1. Encoder connection line failure: this kind of failure has the highest probability of repair...
|
|
Buke servo - introduction of four common servo control systems
1. Hydraulic servo control system
The hydraulic servo control system is based on the power provided by the motor, and the hydraulic pump is used to convert the mechanical energy into pressure and push the hydraulic oil. By controlling various valves to change the flow direction of the hydraulic oil, so as to push the hydraulic cylinder to make different strokes, different directions of the movement...
|
|
Contact
working hours
