There are many categories of PLC, and the following is a brief introduction to PLC and its main functions
As an innovative PLC product family that combines the technical capabilities of power production, the XGT is a system based on open networks, ultra-high-speed processing speeds, compact size and a large number of improved software, which provides a next-generation solution for engineering environments. In order to diversify the range of applications, the XGT series has XGK-CPUS, which can handle small to medium-sized control, and XGK-CPUH, which can handle high-speed and large-capacity control, so that better systems can be built.
Development of XG5000 full set of automation software, from debugging to warranty, programmable software XG5000-XGTPLC programming & debugging tools, maximum retention of windows function, easy operation, a variety of monitoring and diagnostic functions, one engineering, multi-function PLC, multi-task, multi-function program management - use environment: Windows2000, XP (Windows98, ME limited use)
The XGB series is a new generation of PLC products, which combines the most cutting-edge technology of power generation, not only has a compact size and powerful performance, but also greatly strengthens the network support function, user-centric, unified control, and realizes an innovative "futuristic total solution". Customer-centric power production and power production provides comprehensive automation solutions, and shows you the XGB series of PLC multi-functions with high-reliability products with global specifications.
XGT special module high-speed processing of operating parameters and data-XGTCPU, the operation data of the special module is executed together with I/O-AD/DA module conversion data and high-speed counting module, the interactive information such as the instructions of the position module in this area, the convenience used is strengthened by the special module parameter dialog box-the parameter service of XG5000, the parameter is set through the special module parameter dialog box-the online service of XG5000, the monitoring dialog box of the special module, Through the monitoring dialog box of the special module, the operation data and intersection information of each module can be checked or tested and maintained to strengthen (online module replacement) - when the XGTCPU is running or not shutting down, the special module can be replaced online.
The main function of the PLC for power production
Logic control function. The logic control function is the bit processing function, which replaces the relay contacts in series, parallel and other logical connections with PLC or, or non-instructions, to achieve logic control, switch control and sequence control.
Signal acquisition function. The PLC can collect analog signals, digital signals, and pulse signals.
Output control function. It can output digital signals, analog signals, pulse signals to control external solenoid valves, indicator lights and other equipment.
Data processing functions. The data processing function means that the PLC can carry out data transmission, data comparison, data conversion, data shift, arithmetic operation and other operations, and some can also perform floating-point operations.
Timer counting function. Timing or delay control can be carried out, and the time can be accurate to milliseconds. User. It can be set by yourself or changed as needed during operation, which is easy to use. Pulses can be added and subtracted.
Remote I/O capabilities. The remote I]O function refers to the remote I/O unit to connect various input and output devices scattered in a long distance with the main controller to receive and process signals and realize remote control.
The above is a brief introduction to the power production PLC
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The advantages of the inverter in practical application - LS power generation
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The production power takes you to read the PLC ladder diagram
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Requirements for the use of starting inverter motors - LS power generation
Frequency conversion motor refers to the motor that runs continuously with 100% rated load in the range of 10%-100% rated speed under standardized environmental conditions, and the temperature rise will not exceed the allowable value of motor calibration.
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The given way of the inverter - LS generates electricity
Frequency given meaning and given method
The speed of the motor can be changed by changing the output frequency of the inverter. In order to adjust the output frequency of the inverter, the inverter must supply the signal of the changed frequency, which is called the frequency given signal.
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The role of the inverter's braking resistor - LS generates electricity
1. Maintain the inverter from the damage of regenerative electricity
In the process of rapid shutdown of the motor, because of the inertia, a lot of regenerative electric energy will be generated, if this part of the regenerative electric energy is not consumed in time, it will directly act on the DC circuit part of the inverter.
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Introduction of LS inverter IGXA series
LS inverter, the full name of LS AC inverter governor, converts direct current into alternating current by providing a variety of use configurations, and controls the speed of the motor by changing the voltage and frequency of the general power input to meet different industrial needs, so as to complete the energy saving and environmental protection of the automation system. ...
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Key points of LS power BKN circuit breaker design
(1) The cooperation between the circuit breaker and the circuit breaker should consider the instantaneous trip device action value of the superior circuit breaker, which should be greater than the maximum expected short-circuit current at the outlet end of the lower circuit breaker.
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Interference phenomenon that often occurs in LS power inverters
1. As soon as the inverter of the heat exchange station is opened, the pressure transmitter jumps randomly;
2. In the water supply controlled by the inverter, the pressure transformer is used as a signal to collect the pressure, and the pressure transformer is disturbed by the inverter;
3. When the inverter starts the motor, the voltage converter signal is unstable and beats violently;
4. Pressure transformer (4-20 ...
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Parameter setting of LS power inverter
The inverter is a high-tech intelligent product, in order to let it complete the specified control mission, it must be set parameters, otherwise, it is like the computer is not installed and used, and it cannot be operated normally. The parameter setting is carried out by the control surface of the inverter. All kinds of inverters ...
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Frequency converters are used in special motors? - LS inverter
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Inverter overvoltage alarm analysis - LS power generation
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The power frequency motor is abnormally installed with an inverter - LS produces electricity
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1. Poor touch
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LS Electric has been selected as one of the "Top 100 Global Innovators" for 10 consecutive years.
In Clarivate's recent statement, LS Electric was named one of the top 100 innovators in the world. The trophy handover ceremony was held in Anyang, LS Electric R&D Park, with Kim Yeong-geun, Chief Technical Officer of LS Electric, and Ahn Seong-sik, CEO of Clarivate Korea, acting as representatives of both parties.
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The working principle of LS PLC module
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The role of the inverter - LS generates electricity
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Maintenance and maintenance method of electric motor - LS generates electricity
1. Look: The normal operation of the motor has a great relationship with the surrounding environment. Therefore, during the daily inspection, check the water leakage and dripping conditions around the motor (which will cause the low insulation of the motor to form a breakdown and cause burnout), and check whether the peripheral of the motor affects its ventilation and heat dissipation ring.
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The cause and inspection method of inverter overload tripping - LS power generation
1. The main reason for the overload of the inverter
(1) Malfunction, the current detection part inside the inverter has a problem, and the detected current signal is too large, resulting in tripping.
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The application of the inverter to supply power to the motor has encountered a problem
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