In addition to the frequent maintenance of the inverter module, we should regularly check the Mitsubishi inverter module, especially the maintenance of the cooling fan, due to the high power and high speed of the cooling fan, in the dusty working environment, it simply leads to the blockage of the radiator exhaust hole, which makes the internal circuit board dirty, the heat dissipation grease fails, and shortens the life of the Mitsubishi inverter radiator.
1. Avoid Mitsubishi inverter being disturbed
The Mitsubishi inverter operates like a powerful agitator, and the source of the disturbance is on the six IGBT tubes of the output module. Some Mitsubishi inverter switching power supply will also form a certain amount of disturbance, the power line and motor line is the antenna of the disturber, if the ground wire is poorly grounded, the disturbance signal can also be sent out through the ground wire connected to the shell, the longer the line, the larger the scale of disturbance. The disturbance signal of the Mitsubishi inverter not only disturbs the surrounding electronics, but also the Mitsubishi inverter itself. Some Mitsubishi inverters have the function of avoiding disturbance signal radiation and input, while some Mitsubishi inverters have no anti-turbulence function. If the control system uses Mitsubishi inverters and some electronic equipment that relies on analog signals and pulse signals to communicate, such as computers, human-machine interfaces, sensors, etc., it is necessary to consider the adoption of anti-disturbance measures when purchasing Mitsubishi inverters and wiring.
2. Try not to install the inverter on the equipment that has a sensation
When the Mitsubishi inverter is installed in the sensational equipment and runs for a period of time, the connecting screws of the main circuit and the fastening screws of the module are simply loosened, and then the service life of the inverter is shortened. And when the equipment is in a sensation, the module of the inverter is simply damaged. If the inverter must be installed around the equipment that has caused a sensation, the connecting screws of the circuit and the fastening screws of the module should be checked regularly to avoid damage to the inverter due to loose screws.
Third, there must be an outstanding grounding wire
The ground wire in the factory is rarely broken, but once it is broken, the Mitsubishi inverter is simply burned out. Because if there is a motor leakage, and it happens that the ground wire of the factory is broken, the strong current will be connected to the Mitsubishi inverter motherboard through the inverter ground wire, so that the terminal of the motherboard will show strong electricity and burn the motherboard. So, have an outstanding grounding wire.
Fourth, the air switch at the input end of the Mitsubishi inverter should be added with a varistor
The quality of power supply in some enterprises is not very high, and when the power supply line is faulty, the output of high-voltage electricity simply burns out the Mitsubishi inverter and related electronic instruments. In order to solve this problem effectively, the passive maintenance method can be adopted, which is to add a varistor (821K for 380V, 220V471K) to the air switch at the input of the inverter or instrument, when there is high voltage passing through, the varistor will be short-circuited, the air switch trips, and then the inverter is maintained. It should be noted that the varistor should not be too close to the inverter, because when the varistor is short-circuited and burst, the metal fragments generated will fly everywhere, and the strong static electricity and electromagnetic waves emitted during the blasting will affect the function of the inverter. Therefore, it is better to add a varistor to the outside of the inverter.
5. Replace the main board of Mitsubishi inverter
Mitsubishi inverter* is afraid of damage to the motherboard, causing damage to the motherboard for many reasons, such as high ambient temperature, static electricity, large disturbance (such as the adjacent contactor with frequent action), module blasting, etc., strong electromagnetic waves, switching power supply defects also simply burn out the inverter motherboard.
|
More on that
|
Mitsubishi PLC Programming FAQs
1. Can the PLC of FX1N be extended to connect with FX2N's input and output modules, positioning modules, analog modules, etc.?
The PLC of the FX1N is fully capable of expanding the expansion modules connected to the FX2N. Such as FX2N-16EX, FX2N-16EYR, FX2N-4A...
|
|
Mitsubishi inverter capacity selection
The capacity (non-functional) of the Mitsubishi inverter for the drive motor can be understood from the change in energy flow determined by the operation method.
1. When accelerating or operating at constant speed
The efficiency of the inverter is the output current, that is, how much current the inverter can provide to the motor. Frequency converters ...
|
|
Modbus communication and address assignment for Mitsubishi PLC
When using Modbus communication in Mitsubishi PLCs, it is necessary to understand the address allocation of different register types.
The following are the common types of Mitsubishi PLC Modbus addresses and their corresponding functions:
1. Coil Register:
...
|
|
Mitsubishi servo motor types and advantages
1. DC servo
The structure is simple and easy to operate. However, considering the actual operation, the DC servo motor has introduced mechanical equipment for reversing installation, which increases the cost, has many problems, and is inconvenient to maintain, and often interferes with the production and manufacturing due to the sparks of carbon brushes, and electromagnetic interference will occur. Combine...
|
|
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 ...
|
|
Introduction to the Mitsubishi PLC encryption process method
The encryption process is as follows:
** Open the serial port for the first time
[00000000] IOCTL_SERIAL_SET_BAUD_RATE Baud Rate: 9600 (Set baud rate here)
[00000000] IOCTL_SERIAL_SET_LINE_CONTROL StopBits: 1, Parity: Ev ...
|
|
Which components in the Mitsubishi inverter need to be replaced regularly
Mitsubishi inverter is composed of many electronic parts, such as semiconductor components, etc., in the application and protection involves the replacement of a related component, because of the composition or physical characteristics of the inverter, in a certain period of time will deteriorate, thus reducing the characteristics of the inverter, is ...
|
|
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 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 ...
|
|
Three common communication methods of PLC - Mitsubishi
A PLC network consists of multiple subnets. The communication process of each subnet is determined by the communication protocol. The communication method is the core content of the communication protocol. The means of communication include visit control and data transmission. What are the three common communication methods of PLC?
...
|
|
Mitsubishi servo motor is now commonly used
1. Torque control: Torque control is based on external simulation simulation type or direct address assignment to set the output torque of the motor shaft. For example, 10V matches 5Nm. When the external simulation simulation is set to 5V, the output of the motor shaft is 2.5Nm. If the load on the motor shaft is less than 2.5Nm, ...
|
|
Programmable Controller System Design and Debugging Steps – Mitsubishi PLC
The main steps in the planning and commissioning of the programmable manipulator application system
(1) In-depth understanding and analysis of the process conditions and control requirements of the controlled target
a. The controlled target is a controlled mechanical, electrical equipment, production line or ...
|
|
Mitsubishi FX series PLC master control command
The FX2N has a total of 27 fundamental logic instructions, including 20 fundamental logic instructions of some sub-series PLCs.
Master Control Command (MC/MCR)
(1) MC (Master Control Command) for common tandem contacts ...
|
|
Z series and A200 series inverter fault solving
Low-power Z024 series inverter, our common problems include OC, ERR, no appearance, etc. There are two possible causes of OC.
(1) Aging of the drive circuit
Because the use of a long period of time will inevitably lead to the aging of components, which will cause the driving waveform to occur.
|
|
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 ...
|
|
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 ...
|
|
Mitsubishi servo system failure type
The origin orientation is incorrect, and the encoder debugs/zeros the bit
Replacement of bearings, wear of bearing grooves, cracking of the rotor, cracking of the shaft
Gear groove wear
The magnet bursts steel, the magnet falls, gets stuck and doesn't move
Encoder wear, code/glass disc wear and crack
...
|
|
Mitsubishi inverter FR-E024-0.75K repair
Type: FR-E024-0.75K
Fault: The boot cannot be started
Maintenance: This machine does not provide any symptom information, and the display screen shows an "E.THT" error when the motor is to be started after powering on. Check the instructions refer to the ...
|
|
Introduction of Mitsubishi servo motor
Servo motor refers to the engine that controls the operation of mechanical components in the servo system, and is a kind of auxiliary motor indirect transmission device. The servo motor can make the control speed, azimuth accuracy is very precise, and can convert the voltage signal into torque and speed to drive the control target. Servo motor rotor speed ...
|
|
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, ...
|
|
Contact
working hours
