Megmeet inverter - introduction to the classification of inverters

What aspects should be paid attention to in the application and protection of AC arc welding machine: (1) It should be used according to the additional welding current and load continuation rate of the welding machine, and should not be overloaded. (2) The welding machine is not allowed to be short-circuited for a long time. (3) The regulating current should be operated at no load. （4） ...

1. Regularly dust the inverter, focusing on the rectifier cabinet, inverter cabinet and control cabinet, if necessary, the rectifier module, inverter module and the circuit board in the control cabinet can be removed for dust removal. Whether the lower air inlet and upper air outlet of the inverter are dusty or blocked due to excessive dust. The inverter is due to the ...

1. Realize remote control of industrial field equipment; 2. The PLC industrial gateway realizes remote upgrade of equipment firmware, downloads the program, and can flexibly access various equipment management platforms; 3. Realize remote control of industrial site touch screen and remote mapping of configuration screens; 4. PLC industry ...

1. The circuit board inside the inverter belongs to precision electronic components, which needs to be moisture-proof and dust-proof, and the temperature and humidity are not too high, and cannot be installed on the bare wall, so the inverter should be installed in the middle of the control cabinet; The inverter should be installed vertically, and the installation should be avoided directly above and below ...

First, some problems in the application of frequency converter 1.1 Harmonic problems The devices that play a switching role in the main circuit of the inverter must generate harmonics in the process of turning on and off the circuit. The lower harmonics usually have a greater impact on the motor load, causing torque ripple; And the higher ...

1。 How do you distinguish between heavy and light failures? When the fault is light, the system sends out an alarm signal, and the fault indicator flashes. When a major fault occurs, the system issues a fault indication, and the fault indicator is always on. At the same time, a command is issued to break the high voltage and close the prohibition, and the fault information and high voltage are instructed.

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 ...

When the oscilloscope looks at the current monitoring output of the driver, it is all noisy and cannot be read Cause: The current monitoring output is not blocked from the AC power supply (transformer). Solution: You can use a DC voltmeter to detect and investigate. Servo motor high-speed rotation ...

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 ...

a. Power supply The power supply of the PLC plays a very important role in the whole system. It can't work properly without a good and reliable power supply system, so PLC manufacturers also attach great importance to the design and manufacture of power supplies. General AC voltage fluctuations are +10% (+15%) ...

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; ...

1) Shut down, so that the inverter out of the operating state; 2) Cut off the high-voltage power supply and push out the high-voltage cabinet trolley (when there is a bypass cabinet. The inverter can be isolated by the disconnecting switch of the bypass cabinet), the local or remote high-voltage disconnect switch can be locked, and the high-voltage cabinet grounding switch can be grounded; 3) Hit ...

1. Use the analog output module of the PLC to control the inverterThe analog output module of the PLC outputs a 0-5V voltage signal or a 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 requires the option to ...

1. Power supply The power supply of the PLC plays a very important role in the whole system. It can't work properly without a good and reliable power supply system, so PLC manufacturers also attach great importance to the design and manufacture of power supplies. General AC voltage fluctuations are +10% (+15%) ...

1. Data backup When carrying out maintenance, we must cut off the power, data backup between power outages is an important link, for the data that needs to be archived for a long time, you can back up the historical trend data to the mobile hard disk, and then turn off the Windows-based operating system (Note...

5) PLASMA The principle of plasma cutting is: arc discharge between the base metal (including the nozzle in the cutting torch) and the electric in the cutting torch, and use the discharge heat energy to make the compressed gas produce a high-temperature and high-speed plasma arc to fuse the cutting method of the base metal. The small hole of the nozzle ...

1. PLC industrial gateway has rich interfaces and is easy to deploy It supports 4G, 3G, PPPOE, Wi-Fi network, digital IO input and output, and serial terminal communication, providing different access solutions for different applications. 2. Intelligent analysis and efficient access Inline protocol analysis ...

Zhuzhou Lihui Technology Co., Ltd., a subsidiary of Megmit, has put into use a new production line of PEU intelligent production of new energy cars, leading the wave of intelligent production of PEU in the key "three electric" components of domestic new energy cars. Zhuzhou Lihui Technology Co., Ltd. production workshop, a new ...

1. Unified setting of Megmeet welding machine The so-called unification of welding means that the welding machine automatically matches the welding voltage according to the currently set welding current and the unification voltage correction value. The unification setting of Megmeet welder should first turn on the function on the welder side, ...

(1) The PLC adopts the working mode of centralized sampling and centralized output, which reduces the influence of external interference. (2) The working process of PLC is the process of cyclic scanning, and the length of cyclic scanning time depends on the speed of instruction execution, the length of the user program and other factors. (3) Output ...