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, and there is no voltage output at the DC24V end. Turn off the power supply, open the machine shell, take out the power board, find the incoming wire wiring position of L and N, check the safe wire FUSE (5A) connected by the L line has been fused, check the next capacitor C1 (0.1μF/250V), the static measurement is not damaged, check the next filter L1 (7020R7), the measurement is now burned out, and then check the next capacitor C2 (0.047μF/630V), the static measurement is not damaged, and then check the L line protection part TH (10D-9), The measurement has been broken, and then check the rectifier bridge DS1 (D03SBA60), which is now damaged, and then check the DC filter capacitor C5 (120μF/400V), C6 (120μF/400V), and the static measurement is not damaged.
Preliminarily judge that the rectifier circuit of the machine is damaged, and replace the damaged wire FUSE (5A), filter L1 (7020R7), thermal protection part TH (10D-9), and rectifier bridge DS1 (D03SBA60), and use the diode of the multimeter to block the DC terminal (that is, the two ends of the capacitor C5 and C6) The forward direction (the positive capacitance of the meter pen) is infinite, and the reverse (the positive capacitance of the meter pen is negative) is 300 to 600, and the data is normal. That is, it is formed by the damage of the rectifier bridge or the entry of excessive voltage from the outside, and the possibility of defects in the post-stage circuit is small.
In order to be safe, the power supply is connected to L, N after the false load is connected, the output voltage of the power supply board is measured, DC5V and DC24V are normal, and the bulb that serves as the false load is not lit at the same time, the line has been corrected, the false load is removed and directly connected to the power test, and it has been recovered, and the heat engine test of the component is carried out for 1h, which is normal. There are no other faults in the whole machine test, and the machine is corrected. |
More on that
|
Mitsubishi PLC login password setting operation
Method 1
1. Hit the PLC from RUN to STOP
Mitsubishi's PLC has a special method of setting landing keywords, and it is necessary to ensure that the PLC is in a state of shutdown in order to successfully write the landing keywords.
In the run running condition, the performance of the write will appear "Unable to ...
|
|
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?
...
|
|
Mitsubishi Q series PLC and GX Works2 connection method
01 USB connection
USB connection requires the device USB driver, generally the device will be actively driven after the installation of GX Works2 software, but at a single time due to anti-virus software or system reasons, or the device may not be available, then we need to manually drive the device to the accounting machine. The specific device method is ...
|
|
Introduction to 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. The CC-Link fieldbus connection is adopted, and the number of wiring is greatly reduced, and the maintainability of the system is improved. Combine...
|
|
PLC troubleshooting method - Mitsubishi
1. If the PLC stops in the middle of some outputs where the output is excited, then look for the signal that caused the next operation (input, timer, line, drum manipulator, etc.). The programmer will show the ON/OFF status of that signal.
...
|
|
Mitsubishi Electric develops MEMS LiDAR solutions for autonomous vehicles
TOKYO, March 12, 2020 - Mitsubishi Electric Corporation (TSE: 6503) today announced that it has developed a compact Light Detection and Ranging (LiDAR) solution that integrates microelectromechanical systems (MEMS) that enable ultra-wide horizontal scanning angles in the self-...
|
|
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...
|
|
The essential difference between single-chip microcomputer and PLC - Mitsubishi PLC
The difference between PLC and single-chip microcomputer:
1. PLC is a relatively sophisticated control system composed of single-chip microcomputer, and it is a product of the sophisticated and stable single-chip microcomputer application system that has been debugged. There is strong versatility.
2. The single-chip microcomputer can constitute a variety of application systems, and the scale of application ...
|
|
Advantages and applications of servo motors - Mitsubishi
First of all, what are the advantages of servo motors compared with other motors (such as stepper motors):
1. Accuracy: Closed-loop control of azimuth, speed and torque is realized; Overcome the problem of stepper motor out-of-step;
2. Speed: high speed ...
|
|
Differences in the output form of Mitsubishi PLC
Generally, there are three types of Mitsubishi PLC output circuit methods, namely: relay output type, transistor output type and thyristor output type. So what are the characteristics of each of them?
First, the relay output circuit
Use of relays ...
|
|
The reason why the computer programming software and the Mitsubishi PLC cannot communicate
What is the reason why the programming software on the computer and the Mitsubishi PLC cannot communicate? How do I set the port of the communication line?
There are several reasons why communication may not be available:
1. It may be that the PLC is not energized;
2. Programming software to create ...
|
|
Methods for shortening the scanning cycle of PLC programs – Mitsubishi
1. Try to avoid using "double words" when you can use "words", and try to prevent using real numbers when you can use integers.
2. Give priority to the use of surplus (other than hardware connection) IB, IW, ID, QB, QW, QD, followed by M and S;
3. Try to prevent the transformation of data types, ...
|
|
Pay attention to the wiring of the Mitsubishi PLCI/O terminal
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, choose normally open ...
|
|
Mitsubishi PLC Explanation Notes on the Final Statement
If the language is a programming language without any explanation, it will be very difficult for the engineer to understand the program again, and some clarification can bring twice the result to the work. There are three types of explanations: notes, statements, and notes. Note: Explain a certain ...
|
|
Installation and maintenance of Mitsubishi inverters
1. Mitsubishi inverter is more and more widely used because of a series of advantages such as wide speed regulation range, high speed regulation accuracy, fast dynamic response, high work efficiency, convenient operation and easy interface with other equipment. Because of the high common sense content of Mitsubishi inverter and the messy technology, how to use Mitsubishi inverter well...
|
|
Mitsubishi PLC power supply live wire and neutral wire short circuit solution
1. First of all, the power supply should be cut off immediately and the circuit should be admitted whether it has been disconnected.
2. Next, check whether the fuse of the power supply is blown or whether the protector is tripped. Replace the fuse or reset the protector. Envy
3. Fuse ...
|
|
Mitsubishi inverter FR-D700 series selection
Q: When will I choose the D740 series inverter?
A: D700 is a multi-function compact inverter, more portable, less than E700, the general function can be basically realized, simple start and stop can use D700 series.
Q: How should Mitsubishi inverter D740 ...
|
|
Advantages of Mitsubishi Electric fresh air system
Mitsubishi Electric's fresh air system realizes indoor ventilation, but of course, we can't just replace 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.
...
|
|
Mitsubishi tension controller principle
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, and is suitable for winding, unwinding, tension control, etc. It also has the so-called manual control function, which generally refers to the human ability to ...
|
|
Introduction to the functions of Mitsubishi's commonly used servo motor series
Mitsubishi servo motor MR-J2S series
1. The product also has RS-232 and RS-422 serial communication function, which can be used for parameter setting, trial operation, status display and gain adjustment through the personal computer installed with servo setting software.
2. Matching with MR-J2S series ...
|
|
Contact
working hours
