Megmeet welding machine - the application and precautions for the use of butt welding machine

The PLC communicates with the host computer, and BlandC is used to write the communication program between the host and the PLC, and the COM1 port must be initialized, the baud rate is 9600bps, and the parity check bit adopts even check, and the seven-digit valid data is used. When the computer receives the response character ACK from the PLC, it ...

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 ...

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...

There are many types of PLC products, and their specifications and performance also vary. PLCs are usually classified according to their different structural forms, differences in functions, and the number of I/O points. 2.1 Classification by structural form According to the structural form of PLC, PLC can be divided into whole ...

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...

1. In this computer, right-click, manage, check to find the device manager, plug in the USB-PPI cable (one end is connected to the computer, the other end is connected to the PLC), the computer device manager will pop up the port USB-SERLAL CH304 (com3), the number in parentheses may change, indicating that you have found the cable. This...

Laser spot welding machine, also known as resistance welding machine, is usually divided into three categories according to the nature of the welding power source: 1. AC spot welding machine; 2. Energy storage spot welding machine; 3. DC spot welding machine. 1. AC spot welding machine Precision AC spot welding machine generally refers to the spot welding machine with a power of less than 16KVA.

1. Application field: The initial design goal of PLC is only to replace complex relay circuits, and DDC is originally only used in industrial automation instruments: PLC emphasizes versatility, DDC emphasizes specificity: PLC is used in the field of industrial control, and DDC is used in professional building systems. 2. Structural differences ...

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 ...

The first is relay output, the relay output response speed is slow, the output current is large, generally can reach 2A, but the electric shock life is short, the output frequency is low, the maximum is 1HZ; The second is transistor output, the transistor output response speed is fast, the output current is small, and the contact life is relatively small.

21。 The unit is overheating The radiator in the unit is equipped with a temperature switch (normally closed point), and when the temperature exceeds 85°C, the normally closed point of the temperature relay is disconnected, and the unit is overheated and faulty. Check whether the cabinet top fan is working properly, whether the unit cabinet fan switch is tripped, and whether the filter screen is blocked.

First, the process requirements When the low-pressure pressure collected by the system is greater than the upper low-pressure pressure set by the touch screen, the compression time will be loaded according to the set loading time, and the lower pressure will be reduced according to the set load reduction time. The high pressure collected is greater than that on the high pressure ...

1. Correctness (low debugging cost) First of all, the PLC program must be able to work correctly to meet the requirements of the actual control process. This is the essence of the PLC program, and if you don't do that, nothing else makes sense. 2. Reliability (low maintenance cost) Not only to ...

Today's electronics industry revolves around high-speed communication and supercomputing on the Internet, and the requirements for electronic products are getting higher and higher. A large number of micro-precision electronic products are constantly testing the response speed and level of major enterprises in the market. Electronics manufacturers perform real-time, accurate ...

Inverter energy saving The energy saving of the inverter is mainly manifested in the application of fans and pumps. In order to ensure the reliability of production, all kinds of production machinery are designed with power drive, and there is a certain amount of surplus. When the motor cannot operate at full load, in addition to meeting the power drive requirements, ...

PLC maintenance and inspection steps: 1. Check and make sure the mains power is on (120 VAC) 2. Check the available 24V power supply 3. Identify problem areas. It is recommended that peak currents cover this error code, a control method consisting of multiple components distributed over an area or process.

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 vane of rubber and plastics professions and a barometer of shopping malls, the World Rubber and Plastics Exhibition has a 350,000 square meter ...

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. 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...

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 ...