From April 13 to 16, 2021, CHINAPLAS 2021 was grandly held at the Shenzhen World Convention and Exhibition Center (Bao'an New Hall) with the theme of "New Era· New Power, · Sustainable Innovation".
As a rubber and plastic career vane and a barometer of shopping malls, CHINAPLAS has an exhibition area of 350,000 square meters and 3600+ outstanding enterprises from all over the world, with forward-looking and innovative vocational skills solutions to gather at the exhibition site to shape a wonderful future.
In this exhibition, as a high-quality supplier of injection molding machines, Megmeet Electric brought four innovative solution plans: liquid-cooled rapid injection molding machine solution plan, multi-pump confluence system, large-scale injection molding machine solution plan, and small and medium-sized injection molding machine solution plan, echoing the needs of the shopping mall, actively promoting the system plan to high-end, efficient and high-quality upgrades, and won the certainty and recognition of the audience and industry peers!
The internal gear pump brought by Zhejiang Oulid Precision Technology Co., Ltd., a subsidiary of Megmeet Electric, was unveiled with a new attitude. The axial and radial pressure compensation design is selected, and the high volumetric efficiency can be maintained even at low speed and low viscosity, and the maximum operating pressure can reach 35MPa.
Quality, only because of long-term experience; Success comes from perseverance!
Megmeet Electric practices the mission of "providing customers with the best components and solution plans", guided by user experience, and requires itself with extremely high R&D, supply chain, production and service quality. Megmeet Electric has won the trust of customers with its professional spirit and outstanding products, and has won the certainty of professional audiences and peers.
In the future, in the face of rapidly changing shopping malls and needs, Megmeet Electric will take the dream as the horse and forge ahead, in order to become a world-class supplier of plans in the field of electrical control and energy saving, we will adhere to the determination, focus on iterative innovation of skills, and promote career development.
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Megmeet inverter – the basic principle and application of high-voltage inverter
The basic principle of a high-voltage inverter
There are two categories of frequency conversion process of frequency converter: AC-AC form and AC-DC-AC form. Now it is mostly in the form of AC-DC-AC, and the following is a brief introduction to the working principle of this form.
Three-phase high-voltage electricity enters the high...
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Megmeet welding machine - failure and maintenance method of DC welding machine
1. Fault phenomenon: light voltage abnormal indicator
Cause: Due to the slow start-up action, the switch contact is not synchronized.
Solution: You can turn the device off and on again.
2. Fault phenomenon: the fan does not rotate, and the abnormal voltage indicator light is lit together
Causes ...
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Megmeet PLC - What is the difference between PLC and servo control system
1. The meaning of the representation is different:
PLC is the abbreviation of planar optical waveguide (technology), the so-called planar optical waveguide, means that the optical waveguide is located in a plane.
A servo control system is a feedback control system used to accurately follow or reproduce a certain process.
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Megmeet PLC common faults
1. External equipment failure. Such faults come from external devices such as various sensors, switches, actuators, and loads. The failure of this part of the equipment will directly affect the control function of the system. This type of failure is usually caused by the quality and longevity of the equipment itself.
2. System failure ...
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Megmeet drives – what are the components of a drive?
The inverter is composed of a main circuit, a rectifier, a flat wave circuit, and an inverter.
1) Main circuit:
The main circuit is the power conversion part that provides voltage regulation and frequency regulation power supply for the asynchronous motor, and the main circuit of the inverter can be roughly divided into two categories: the voltage type is the DC ...
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Features of Megmeet CO2/MAG all-digital heavy-duty welder
1. The arc is stable in the field of full current, the spatter is small, and the same welding machine is not only suitable for small current base welding, but also suitable for high current and high deposition rate work
2. Arc concentration and strong penetration. With the same penetration depth, the heat input is reduced by more than 20% compared with other gas shielded welding machines, and the thermal deformation ...
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The cause and treatment method of the fault code Eroc1 of Megmeet inverter
1. Overcurrent fault of inverter
Fault Code: OCF.
(1) Fault name: inverter overcurrent fault
(2) The cause of the failure: the motor nameplate data input is incorrect: the load dragged by the motor is too heavy: the machinery is stuck; Motor stalled.
(3) ...
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Megmeet inverter - the basic method and steps of inverter commissioning
1. No-load energizing test of inverter
1. Ground the grounding terminal of the inverter.
2. Connect the power input terminal of the inverter to the power supply through the leakage maintenance switch.
3. Check whether the factory display of the inverter window is normal, if it is incorrect, it should be reset, otherwise it should be ...
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Megmeet PLC - What are the steps to complete PLC commissioning?
1. Check the circuit according to the drawing (without power transmission)
The drawings of the general PLC system include two parts: the drawings in the cabinet and the drawings outside the cabinet; The drawing in the cabinet refers to the wiring diagram inside the cabinet; The out-of-cabinet drawings are the wiring diagrams of all electrical cabinets.
This part needs to be checked for;
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Analysis of the fault code of Megmeet welder
1. E1: indicates sensor failure. In this case, it is necessary to check whether the sensors of Megmeet are damaged or whether the wiring is loose.
2. E2: Indicates overweight load. At this point, it is necessary to check whether the load of Megmeet exceeds the set maximum load.
3. E3: Indicates battery ...
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Megmeet drives – how should high-voltage drives be maintained after they are shut down?
1. Check the surrounding situation - carefully check the ventilation and lighting of the inverter and the surrounding environment. It is necessary to ensure that the ventilation equipment is functioning properly and that the lighting equipment is in working order.
2. Check the internal cable - open the inverter cabinet door and check whether the internal cable is damaged, the cable ...
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Megmeet welding machines – the main application area of resistance welding
(1) Spot welding: The weldment is pressed between the two cylindrical electrodes, heated by electricity, so that the weldment melts at the contact to form a nugget, and then the power is cut off, and it solidifies and crystallizes under pressure to form a dense solder joint.
Spot welding is suitable for welding thin plates (laps) and steel bars below 4 mm.
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Megmeet inverter - introduction to the control method of low-voltage inverter
1. Sinusoidal pulse width modulation
Sinusoidal Pulse Width Modulation (SPWM) is characterized by simple structure of control circuit, low cost, good hardness of mechanical characteristics, and can meet the smooth speed regulation requirements of general transmission, and has been widely used in various fields of the industry.
However, this control ...
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Megmeet PLC - What is the difference between PLC and MCU?
1. PLC is a relatively mature control system composed of single-chip microcomputer, which is the product of a mature and stable single-chip microcomputer application system that has been debugged. It is highly versatile.
2. The single-chip microcomputer can form a variety of application systems, and the application range is wider. In the case of a single "microcontroller", it ...
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Megmeet PLC – the three basic process contents of PLC work
1. Input processing
Input processing is also called input sampling. In this phase, the through-end state of all input terminals is read sequentially, and the read information is stored in the corresponding image register in memory. Here the input image register is flushed. Then the program execution phase begins. In the execution of the procedure ...
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Megmeet inverter – three ways to connect the PLC to the inverter
(1) Use the analog output module of PLC to control the analog output module of the inverter The analog output module of the PLC outputs 0-5V voltage signal or 4-20mA current signal, which is used as the analog input signal of the inverter to control the output frequency of the inverter. This control method is simple to wiring, but it needs to be selected and changed.
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New Arrivals! Hollysys' two blockbuster products were unveiled at the Zhongguancun Forum Technology Trading Conference
On September 24, the 2021 Zhongguancun Forum, co-sponsored by the Ministry of Science and Technology of China, the Chinese Academy of Sciences, the China Association for Science and Technology, and the Beijing Municipal People's Government, officially opened in Beijing. As one of the main agendas of the forum, the Zhongguancun International Technology Exchange Conference closely follows the "smart· healthy· carbon neutrality...
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Megmeet inverter - common faults and treatment methods of high-voltage inverters
The high-voltage inverter has a highly intelligent computing level and a perfect fault detection circuit, and can provide accurate positioning of all faults, and make clear instructions on the main control interface. In practical application, we find that common faults can be divided into abnormal control channels, IGBT overcurrent, overvoltage...
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Megmeet inverter - inverter braking mode and advantages and disadvantages introduction
What are the braking methods of the inverter? Generally speaking, braking refers to the technical measures taken during the operation of the motor due to fault protection or man-made active shutdown, and the commonly used inverter braking methods include energy consumption braking, feedback braking, DC braking and DC feedback braking. ...
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Megmeet inverter - precautions for inverters at high temperatures
1. Carefully monitor and record the display parameters on the man-machine interface of the inverter, and reflect the abnormality immediately;
2. Carefully monitor and record the ambient temperature of the frequency conversion room, and the ambient temperature should be between -5 °C and 40 °C. The temperature rise of the phase-shifting transformer should not exceed 130°C;
3. Summer ...
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