E6, E7 fault for the majority of users must not be unfamiliar, this is a more common Mitsubishi inverter typical problem, of course, the cause of damage is also multifaceted.
The integrated circuit 1302H02 is damaged, this is an IC integrated circuit that integrates the driving waveform conversion and multi-channel detection signal, and has multiple signals related to the CPU board, in many cases, any signal presentation problem of this integrated circuit may cause E6 and E7 alarms.
The signal isolation optocoupler is damaged. There are multiple strong and weak signals that need to be isolated between the IC integrated circuit 1302H02 and the CPU board, and the damage of the isolated optocoupler is still relatively high in the damage share of the components, so when presenting E6 and E7 alarms, it is also necessary to consider whether it is formed by such factors.
The connector is damaged or the connector is in poor contact. Because the connection cable between the CPU board and the power board is easy to break after several twists and turns, virtual soldering and other phenomena, and if it is used improperly on the plug side, it is also easy to show the phenomenon of pin twisting and breaking. Some of the above reasons may also cause the appearance of E6 and E7 problems.
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Malfunction caused by capacitance between PLC input lines – Mitsubishi
There is a capacitance between the wires of the cable, and a qualified cable can limit this capacitance to a certain size. It is a qualified cable, when the cable length exceeds a certain length, the capacitance value between the lines will also exceed the required value, when the cable is used for PLC input, the capacitance between the lines will be ...
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Mitsubishi PLC control system electroplating production line design
Planning PLC control system control requirements for electroplating production line:
1) SQ1-SQ4 is the driving advance and retreat limit switch, and SQ5-SQ6 is the upper and lower limit switches.
2) The workpiece is lifted to SQ5 to stop, and the car is driven to SQ1 to stop.
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The correct maintenance method for Mitsubishi inverters
Mitsubishi inverter we have to maintain the inverter module frequently, to regularly check the Mitsubishi inverter module, especially the maintenance of the cooling fan, due to the high power of the cooling fan, high speed, in the dusty working environment, simply lead to the radiator exhaust hole blockage, so that the internal electric ...
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Mitsubishi PLC command negation, empty operation and END, etc
Introduction to Mitsubishi PLC directives such as negation, air operation and END
The INV (Inverse) command is represented by a short 45° slash at the top of the ladder diagram, which negates the result of the operation before the execution of the instruction, and the result of the operation is 0 ...
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Mitsubishi servo teaches you to choose a good robot
When evaluating which process is suitable for which approach in the production environment, consider the problem you want to solve and consider all the costs that the robot can save: reduce waste, improve efficiency, improve productivity, improve safety, or reduce labor costs. These costs ...
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Mitsubishi servo drive system requirements
Servo drive system requirements
1. Wide speed regulation
2. High positioning accuracy
3. Satisfactory transmission rigidity and high speed stability
4. Fast response, no overshoot
In order to ensure productivity and processing quality, in addition to the requirement of high positioning accuracy ...
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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
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Review and comparison of Mitsubishi PLC control inverter methods
1. The switching signal of PLC controls the inverter
The output point and COM point of the PLC (MR type or MT type) are directly connected to the STF (forward engine), RH (high speed), RM (medium speed), RL (low speed), and input SG ports of the inverter. The PLC can be programmed to control the inverter's start, ...
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Mitsubishi 30MA-eX-F40 fiber laser flexible automatic loading and unloading system
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Mitsubishi servo motor one-button adjustment function
In the MR Configurator2 servo commissioning software, Mitsubishi has developed a "one-button adjustment" function to solve the problem of rigid noise of servo motors, as follows:
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Functional characteristics of Mitsubishi's various series of servo motors
Mitsubishi servo motor system series: MR-J2S series, MR-J3 series, MR-ES series, MR-E series.
Mitsubishi servo motor MR-J2S series
1. The product also has RS-232 and RS-422 serial communication functions, which can be used by a personal computer equipped with servo setting software.
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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.
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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?
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Mitsubishi inverter pre-use debugging steps
1. No-load energizing test of Mitsubishi inverter.
1. Ground the ground terminal of the Mitsubishi inverter.
2 Connect the power input terminal of the Mitsubishi inverter to the power supply through the leakage maintenance switch.
3 Check whether the factory display window of Mitsubishi inverter is normal, if it is not correct.
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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 ...
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Mitsubishi inverter fault detection method
1. The output side of the inverter is short-circuited, such as the connection line between the output end and the motor, or the short circuit inside the motor, etc.;
2. The inverter itself is not working properly, such as the two inverter equipment of the same bridge arm in the inverter bridge are constantly alternating in the working process ...
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Mitsubishi takes instructions and outputs instructions
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Introduction to Mitsubishi PLCFX3U positioning control
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The difference between Mitsubishi PLC and Siemens PLC
The programming philosophy is different
Mitsubishi PLC is a Japanese brand, programming is intuitive and easy to understand, and it will be easier to learn, while Siemens PLC is a Germany brand, the instructions are more general, it is more difficult to learn, but there are fewer instructions, and Mitsubishi has more instructions, so learn Mitsubishi and learn Siemens' week ...
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There are three major classifications of inverters - Mitsubishi inverters
There are several ways to classify frequency converters:
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In accordance with the ...
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