1. Enter the wiring
(1) The input wiring should generally not exceed 30 meters. However, if the environmental disturbance is small and the voltage drop is not large, the input wiring can be appropriately longer.
(2) The input/output lines cannot be separated by the same cable, and the input/output lines should be separated.
(3) As far as possible, the normally open contact method is used to connect to the input terminal, so that the prepared ladder diagram is consistent with the relay schematic diagram and is easy to read.
2. Output cohesion
(1) The wiring of the output terminal is divided into independent output and common output. In different groups, different types and voltage levels of output voltages can be used. However, the output in the same group can only use the same type of power supply of the same voltage level.
(2) Because the output component of the PLC is encapsulated on the printed circuit board and connected to the terminal board, if the load of the connected output component is short-circuited, the printed circuit board will be burned, so the output component is maintained by using a fuse.
(3) When the relay output is selected, the size of the electrophysical load will affect the service life of the relay, therefore, the working life of the relay should be long when the electrorational load is used.
(4) The output load of the PLC may cause disturbances, so measures should be taken to control it, such as the maintenance of the freewheeling tube of the DC output, the resistor-capacitance absorption circuit of the communication output, and the bypass resistance maintenance of the output of the transistor and bidirectional thyristor.
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Mitsubishi PLC's communication inspection method
When you are ready to communicate through AJ71QE71, perform a ping in MS-DOS format to check if the connection is correct before the Mitsubishi PLC's GPPW starts to communicate. The support communicates with the Weilun touch screen through the serial port.
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Mitsubishi inverter basic questions and answers
1. Question: What is the type of RS485 to RS232C converter used by Mitsubishi inverter for communication?
Solution: FA-T-RS40* Mitsubishi inverter is available.
2. Question: Mitsubishi inverter frequency external potentiometer is given, and the external potential recommended to be used ...
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Mitsubishi inverter installation reactor features
1. Characteristics of the output reactor:
1. It is suitable for reactive power compensation and harmonic control
2. The primary effect of the output reactor is to compensate for the influence of long-line distributed capacitance, and output harmonic current according to the press; 3. ** Ground protection of Mitsubishi inverter and improved power factor, can block from the grid ...
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Precautions related to transportation control of lithium batteries - Mitsubishi
This Skills Brief introduces the United Nations requirements for lithium battery shipment controls and United States guidelines for lithium battery shipment controls.
In addition, the content shown in this skill newsletter will be discontinued as of March 2020.
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Introduction to Mitsubishi tension controllers
1. Tension Manipulator Principle - Introduction
The tension manipulator can be called the tension manipulator, which is usually used with magnetic particle brake, magnetic particle clutch and tension detector, which is suitable for winding, unwinding, tension control, etc. It also has the so-called manual control function, which generally refers to the fact that human beings can ...
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Low-voltage electrical faults and maintenance methods - Mitsubishi
In the process of operation, low-voltage electrical appliances will present problems due to improper use or long-term operation of aging components, and there are many kinds of problems, and the common problems are analyzed and dealt with.
1. Contact problems and repairs
The contact is the primary component of the low-voltage switching coupon, ...
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The built-in analog quantity of the Mitsubishi PLC function module is changed to current input
Mitsubishi FX5UCPU module has a built-in analog input as a voltage input (DC0-10V),
In this way, it can be converted into an analog current input (DC4 - 20m).
[Method used in current input (DC4 - 20mA)]
FX5UCPU module only supports voltage ...
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Advantages of Mitsubishi Electric fresh air system
Mitsubishi Electric's fresh air system realizes indoor ventilation, but of course, we can't just be limited to simply replacing the outdoor air into the room, a good fresh air should filter the harmful substances in the air, so that the air entering the room is not only fresh, but also clean and harmless.
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One-button adjustment function for Mitsubishi servo motors
After the first installation of different servo motors on the machine, they may be poorly matched to the machine during operation, resulting in vibration, noise and other phenomena.
The cause of the problem is a mismatch between parameters such as the rigidity of the servo motor and the load-inertia ratio and the machinery. Due to the large number of parameters that affect ...
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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".
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Mitsubishi GM AC Servo MR-JE
One-click adjustments
Servo adjustment can be completed with one-button operation without the need for a computer.
In addition, the oscillation button control and robust filter can be automatically adjusted.
Instantaneous stop tolerance increases
It is equipped with an instantaneous stop TOUGH DRIVE function and a large capacitance ft main circuit capacitor.
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Troubleshooting methods for Mitsubishi overload
1. Check whether the motor is heated
If the temperature rise of the motor is not high, the first thing to check is whether the electronic thermal protection function of the Mitsubishi inverter is preset reasonably, if the Mitsubishi inverter still has margin, the preset value should be relaxed; For example, the allowable current of Mitsubishi inverter is now out of margin, not ...
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Mitsubishi FX1N switching power supply fault repair
Problem description: The power supply of the Mitsubishi FX1N-60MR-001 has no display (the safety guard, filter, temperature protection element, and rectifier are damaged).
Inspection and repair: After the PLC is connected to the power supply, the power indicator (POWER light) does not light up.
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Mitsubishi inverter FR-E700 series is selected
Q: When will I choose the E740 series inverter?
A: E700 is an economical and small inverter with high driving performance, with the function of holding the brake, and can also add options to expand the function, which can be used for transportation, lifting occupations, and has high cost performance.
Q: Mitsubishi inverter E740 should ...
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The weight conversion method of the Mitsubishi weigh module
Component conversion is a process in which an analog signal (load converter output voltage) input from outside the programmable controller is converted into a digital output value and a total component output value, and then stored in buffer memory. After the conversion process, the conversion completion (XE) will change to ON, and the transformation completion mark (Un\G1 ...
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MITSUBISHI MELFA ASSISTA COLLABORATIVE ROBOT
With the spread of industrial robots in the production site, more and more on-site issues need to be solved, such as the need for more robot programming engineers, which increases the human cost; The teaching is complicated, which increases a lot of non-production time; Set up guardrails to increase the cost of space and installations; Robot...
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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...
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Mitsubishi PLC program lost backup program write method
The reasons for the loss of the PLC program are the lack of battery power supply for the user's saved program, the internal circuit of the PC, the motherboard burned out due to the impact of external high voltage such as lightning strikes, etc., which will be encountered in our PLC control system. For example, the old type of plc such as the FX2N series, which has been discontinued...
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Mitsubishi Electric develops technology for high-power-density converters with embedded components
TOKYO, March 25, 2020 – Mitsubishi Electric Corporation (TSE: 6503) today announced that it has developed a new technology that integrates power devices, passives, sensors, and other embedded components on the same substrate and performs the dispensing at 100kW (continuous) power.
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Analysis of the conversion principle of Mitsubishi PLC
1. The digital-to-analog converter is a system that converts digital signals into imitation signals, which can generally be completed by low-pass filtering. The digital signal is decoded in the first line, that is, the digital code is converted into the corresponding level to form a stepped signal, and then the low-pass filter is carried out.
According to the signal and system ...
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