1. The servo mainly relies on the pulse to locate, which can basically be understood in this way, the Mitsubishi CNC system maintenance servo motor receives 1 pulse, and it will rotate the angle corresponding to 1 pulse, so as to achieve displacement, because the servo motor itself has the function of sending out pulses, so the servo motor will send out the corresponding number of pulses for every angle of rotation, so that the pulse received by the servo motor forms an echo, or called a closed loop, so that the system will know how many pulses are sent to the servo motor, At the same time, how many pulses are received back, so that the rotation of the motor can be controlled very accurately, so as to achieve accurate positioning, which can reach 0.001mm.
DC servo motors are divided into brushed and brushless motors. The brush motor has low cost, simple structure, large starting torque, wide speed regulation range, easy control, and needs maintenance, but it is easy to maintain (change carbon brush), which produces electromagnetic interference and has requirements for the environment. Therefore, it can be used in cost-sensitive general industrial and civil applications.
The brushless motor is small in size, light in weight, large in output, fast in response, high in speed, small in inertia, smooth in rotation and stable in torque. The control is complex, easy to achieve intelligence, and its electronic commutation mode is flexible, which can be square wave commutation or sine wave commutation. The motor is maintenance-free, has high efficiency, low operating temperature, low electromagnetic radiation, long life, and can be used in various environments.
2. AC servo motor is also a brushless motor, which is divided into synchronous and asynchronous motors. Large inertia, low maximum rotational speed, and rapid decrease as power increases. Therefore, it is suitable for applications with low-speed and stable operation.
3. The rotor inside the servo motor is a permanent magnet, and the U/V/W three-phase electricity controlled by the driver forms an electromagnetic field, and the rotor rotates under the action of this magnetic field, and at the same time, the encoder of the motor feeds back the signal to the driver, and the driver adjusts the angle of rotation of the rotor according to the comparison between the feedback value and the target value. The accuracy of the servo motor is determined by the accuracy of the encoder (number of lines).
|
More on that
|
Mitsubishi PLC network structure
1. The equipment layer/fieldbus CC-Link equipment layer is a field network that connects PLC and other control equipment, sensors and drive equipment, which is the lowest layer of the entire network system. CC-Link fieldbus connection is selected, the number of wiring is greatly reduced, and the maintainability of the system is improved. Combine...
|
|
Mitsubishi servo system selection
Mitsubishi servo system mainly has MR-J4, MR-JE, MR-JE-AS and other series, MR-J2S, MR-J3, MR-ES has been discontinued, gradually withdrawn from the shopping mall, the first three are considered.
When selecting a Mitsubishi servo, the first thing is to choose the MR-J4 series or MR-JE series according to the application, and the driver uses the A-type ...
|
|
Advantages of Mitsubishi servo system:
The servo system is an automatic control system that makes the output of the object's position, direction, and condition change according to the arbitrary change of the input quantity (or given value). In the automatic control system, the system that can echo the control signal with a certain degree of accuracy is called the follow-up system, also known as the servo system.
|
|
Advantages and disadvantages of different output types of Mitsubishi PLC
The three output types of PLC are: transistor output, thyristor output and relay output, what is the difference between these three different output types?
(1) Transistor output:
The biggest advantage is that it is accustomed to high-frequency action, and the echo moment is short, generally about 0.2ms, but it ...
|
|
Mitsubishi PLC programming cable communication port setting method
1. Plug the programming cable into the USB port of the computer.
2. On the desktop, place the mouse on the "My Computer" icon, and then right-click.
3. In the pop-up menu, select "Device Manager".
...
|
|
There is no self-locking reason for the Mitsubishi servo motor to be turned on
In some cases, when the user first touches the use of the Mitsubishi servo motor, it may appear that the Mitsubishi servo motor is not self-locking after it is ready! So, what is the reason for this? And how to deal with it?
...
|
|
Performance comparison of Mitsubishi servo motors
First, the control accuracy is different
The step angle of the two-phase hybrid Mitsubishi servo motor is generally 1.8 ° and 0.9 °, and the step angle of the five-phase hybrid Mitsubishi servo motor is generally 0.72 ° and 0.36 °. Mitsubishi servo motors, which are also some functions, have a smaller step angle after segmentation.
...
|
|
Mitsubishi Inverter F740 restores factory default
Press the "SET" button to end the factory setting.
Defects usually occur due to problems with the resistors or wiring of the voltage detection loop, rather than the actual undervoltage of the input voltage. OC disadvantages of the A200 series ...
|
|
How does Mitsubishi PLC work?
1. A scanning cycle is divided into input sampling, program fulfillment, and output rewriting.
2. Each scan process. The convergence samples the input signal. The convergence rewrites the output signal.
3. The inner ...
|
|
Mitsubishi PLC's method of controlling the inverter
1. Mitsubishi PLC's analog signal control inverter
Hardware: FX1N, FX2N PLC hosts, equipped with 1 simple FX1N-1DA-BD extended analog output board; or analog input-output hybrid module FX0N-3A; or FX2N-2DA with two outputs; or four outputs ...
|
|
Introduction to the Mitsubishi FX PLC Outage Service
1. What is suspension?
The so-called suspension refers to the fact that in the process of sequentially performing the program scanning, when there is a request to respond immediately, the scanning work performed at that time is immediately suspended, and the service work specified in the request is performed first. When the service job is complete, go back to ...
|
|
There are three major classifications of inverters - Mitsubishi inverters
There are several ways to classify frequency converters:
According to the classification of the main circuit operation method, it can be divided into voltage-type inverter and current-type inverter; According to the classification of switching methods, it can be divided into PAM control inverter, PWM control inverter and high carrier frequency PWM control inverter;
In accordance with the ...
|
|
The method of Mitsubishi PLC to control the Mitsubishi inverter
The switching quantity control inverter of PLC is selected (that is, the switching output terminal of PLC is directly connected to the switching input terminal of the inverter, and the PLC can control the start, stop, forward and reverse rotation of the inverter and high, medium and low speed multi-stage speed operation through the program).
...
|
|
Mitsubishi's introduction to the three-circuit system
Servo motors are generally operated by three circuits. To put it bluntly, the three circuits are three closed-loop control negative feedback PID control systems.
The first innermost PID loop is the current loop, which is implemented completely inside the servo controller. Exercise...
|
|
Mitsubishi inverter control mode
According to the classification of the main circuit operation mode, it can be divided into voltage-type inverter and current-type inverter; According to the classification of switching methods, it can be divided into PAM control inverter, PWM control inverter and high carrier frequency PWM control inverter;
According to the classification of operating principles, it can be divided into V/f control frequency conversion ...
|
|
Mitsubishi servo motors achieve precise positioning
The servo control system is a process control system that enables the output of the controlled quantity such as the position, direction, and situation of the block to follow the overall goal (or given value) of the input at will.
So how does the Mitsubishi servo motor maintain precise positioning, how to look at its closed-loop control characteristics, today ...
|
|
A brief description of Mitsubishi's PLC network structure
1. The equipment layer/fieldbus CC-Link equipment layer is a field network that connects PLC and other control equipment, sensors and drive equipment, which is the lowest layer of the entire network system. CC-Link fieldbus connection is selected, the number of wiring is greatly reduced, and the maintainability of the system is improved. Whereas...
|
|
PLC industrial automation production line construction steps - Mitsubishi
When we select PLC as a controller for the construction of industrial automation production line, we should go through the following process, which is briefly described below:
1. First of all, the demand side, that is, Party A, needs to tell Party B what they want to achieve.
|
|
Mitsubishi servo motor method
1. Torque control: Torque control sets the output torque of the motor shaft through external imitation input or direct address assignment. For example, 10V is equivalent to 5Nm. When the external analog is set to 5V, the output of the motor shaft is 2.5 Nm. If the motor shaft load is less than 2.5 Nm, when the external load is 2.5 N...
|
|
Mitsubishi FX2N Series Extended PLC Module Selection Chart
|
|
Contact
working hours
