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introduction： Automotive control relays have two main parts，One is the control system，The other is the controlled system。The control relay is able to control，Its when some kind of signal is fed into its control system，Such as electricity、magnetic、hot、When a physical quantity such as light reaches a certain value，Enables the controlled system（Also known as output loop）The controlled quantity changes from zero to a fixed value，Or it goes from a certain value to zero，Thereby achieving control、Protection、Transmitting and transforming information。Control large current with small current，it...
2016-03-10 Reading quantity 1573
introduction： 1Hydraulic coupler mode。That is, a hydraulic coupling device is inserted between the motor and the load，The coupling force between the motor and the load is adjusted by the level of the liquid，Realize the speed adjustment of the load； 2Cascade speed regulation。Winding asynchronous motor is necessary for cascade speed regulation，A partial energy of the rotor winding is passed through the rectification、The inverter is then sent back to the grid，this...
2016-03-10 Reading quantity 1537
introduction： The most important thing in industrial control is stability，The second is stability，Third, its stable.，And stability is not just about hardware，Software is also very important，Then there is resistance to interference。Here only talk aboutPLCsoftware。 I putPLCThe program specification consists of the following components： &n...
2016-03-08 Reading quantity 1633
introduction： The relay is capable of generating the minimum current required for the pull-in action。In normal use，The given current must be slightly greater than the draw current，So the relay can work stably。And the operating voltage applied to the coil，Generally do not exceed the rated operating voltage1.5times，Otherwise, it will generate a large current and burn the coil。 As a control element，In a nutshell，Relays have several functions as follows： ...
2016-03-08 Reading quantity 1594
introduction： The frequency converter can not be used normally in all cases，So it is necessary for the user to load、Learn more about environmental requirements and drives。 1.Load type and inverter selection： Driven by an electric motor...
2016-03-08 Reading quantity 1547
introduction： The frequency converter will also have some problems in the process of working，Such as vibration and noise is often a problem when the inverter is working，So what is the reason for the vibration and noise of the frequency converter？What are the solutions to these problems，Lets specifically introduce the causes and treatment methods of vibration and noise generated by the frequency converter。 ...
2016-03-08 Reading quantity 1576
introduction： At present，The application of overcurrent relay principle in modern times is more and more extensive，The principle of overcurrent relay is worth studying，Now lets take a closer look at the principle of overcurrent relays。 The working principle of electromagnetic overcurrent relay is compound type，It is composed of two elements of induction type and electromagnetic type that share a coil。unrelayed...
2016-03-08 Reading quantity 1575
introduction： In summer, inverter repair and maintenance precautions，The reason for the severe hot weather in summer is the hard injury caused by the heat of the inverter，Summer inverter maintenance pay attention to these points，temperature，humidness，ventilate，No dust, no interference，The inverter is carried inside、Exterior cleaning，Now the weather is relatively hot, it may be that foreign bodies have entered the inverter before, resulting in air duct blockage，High load due to poor heat dissipation。Industrial products online Xiaobian for everyone to help sort out some precautions
2016-03-08
Reading quantity 1592
introduction： PLCGenerally, the relative humidity of the air in the working environment should be less than85％，In order to ensurePLCInsulation properties of。Too much humidity can also affect the analog input/The accuracy of the output device。 thoughPLCIt has high reliability，And has a strong anti-interference ability，However, in too harsh environment or improper installation and use，Could have caused itPLCInternal information...
2016-03-08 Reading quantity 1668
introduction： With the rapid development of modern power electronic technology and microelectronic technology，The high voltage and high power frequency conversion speed regulating device has been maturing，It has been difficult to solve the problem of high pressure，In recent years, it has been well solved by device series or unit series。However, in use, we still understand in advance the problems that should be paid attention to during the start-up process of the high voltage inverter。 ...
2016-03-08 Reading quantity 1580
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