【机械类毕业论文中英文对照文献翻译】PLC安装须知【word英文2378字5页word中文翻译1789字7页】
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机械类毕业论文中英文对照文献翻译
word英文2378字5页，word中文翻译1789字7页
机械类
毕业论文
中英文
对照
文献
翻译
PLC
安装
须知
word
英文
2378
中文翻译
1789
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【机械类毕业论文中英文对照文献翻译】PLC安装须知【word英文2378字5页word中文翻译1789字7页】,机械类毕业论文中英文对照文献翻译,word英文2378字5页,word中文翻译1789字7页,机械类,毕业论文,中英文,对照,文献,翻译,PLC,安装,须知,word,英文,2378,中文翻译,1789
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外文资料翻译The PLC gearing beard knowsOne prefaceThe programmable controller(PLC) is a kind of new in general use automation control to equip, it traditional of melt after the electric appliances control technique,the calculator technique and the communication techniqueHave the control function for the integral whole strong, can*sex is high, using vivid convenience, being easy to expand etc. advantage but apply more and more extensively.But while use because the industry livingProduce the work environment of the spot bad, the interference source is numerous, using an electricity an equipments to start or stopping the motion of cause the charged barbed wire net electric voltage formation low frequency interference such as the big power, electric weldingThe machine,the electricity spark processes the electricity of the tool machine,electrical engineering brush etc. passes the electromagnetism match the output work interference etc., would influence a PLC normal work.Though the PLC is the control that uses exclusively and on the spot to equip, having already adopted much measure while design manufacturing, making it compare an orientation to the industrial environment, but for the sake of indeedProtect the whole system stability can*, still should make the PLC have a good work environment condition as far as possible, and adopt the anti- interference measure of the necessity.2 PLC while installing with the maintenance should notice of problem2.1 PLC gearingThe PLC is applicable to mostly industrial spot, but it still has a certain request to the usage situation,the environment temperature.etc.Control a PLC work environment, can raise availablyIts work efficiency and the life span.Avert from while install PLC following place:(1) The environment temperature more than 050 scope of the s;(2) Relative humidity more than 85% exists dew to coagulate perhaps;(from what the temperature mutation or other factors cause)(3) The sun light projects light upon directly;(4) Decay and combustible air, for example hydrogen chloride,hydrogen sulfide.etc.;(5) Conjectured the iron scraps and dust;(6) Multifarious or continuous vibration, the vibration frequency is a 1055 Hzs,range is a 0.5 mms();(7) Over the impact with 10 gs(the gravity acceleration).All have already installed bore on 4 Capes of the small scaled and programmable controller outer shell.There are two kinds of gearing methods, one is fix with the bolt, the different unit has a different gearing Chinese foot Inch;Another a kind of is the DIN(German republican standard) orbit to fix.The gearing clipboard of the DIN orbit kit usage, or so one rightness for each.On the orbit pack first very or so Clipboard, pack up the PLC, then tight bolt.For the sake of making the control system work can*, usually install programmable controller in have the control cabinet of protect the outer shell, with Keep dust,greasy dirt,water from splash.For promising programmable controller Be work the appearance descend its temperature to keep in the provision the environment temperature scope, install the machine should have foot Sufficient well ventilated space, the basic unit has to have the 30 mms above partition with expanding of the unit.If the surroundings environment over 55 Cs, install electric fan, force airiness.The electricity interference of the other peripherals in order not to, the programmable controller should keep off the high voltage line and the high pressure equipments, programmable controller and the high pressure equipmentses possibly with Of the power cable distance that should stay at least a 200 mms.When the programmable controller perpendicularity install, take strict precautions against to lead line head,the iron scraps.etc. to drop to go into programmable controller inner part from the well ventilated window, make PC board short-circuit, make it Cant work normally to even damage permanently.2.2 The power supply connects line The PLC power supply power supply is a 50 Hzs,the 220 V is 10% alternate currents.The FX series the programmable controller have the direct current 24 V exportation to connect line to carry.Should connect line to carry can spread feeling(if the light electricity switch or near to a switch) to provide the direct current 24 V power supply for the importation.If the power supply occurrence break down, break off time little in 10 mses, PLC work uninfluenced.If the power supply break off to descend to exceed to allow a value over the 10 mses or the power supply, the PLC then stops Work, all exportations order all to break to open in the meantime.When the power supply recover, if the RUN importation connect, then operating an au to carry on.Interference come to the power cable, the PLC has to boycott an ability enough.If the power supply interference is specially serious, can install 1 change to compare to 1:1 of the insulation change to press Machine with reduce the interference of of the equipments and ground.2.3 Connect ground Connecting ground goodly is to promise PLC can*the important condition of the work, can avoid the electric voltage of the accidental occurrence pounding at bane.Connect a ground of line and machine connects ground to carry to connect, basic The unit connects ground.If want to use to expand unit, its connecting a location should connect a location with basic unit to connect together.For repressing to impose the power supply and importation to carry,output something to carry Interference, should mount the appropriation ground line for programmable controller, connect the location should connect a location with the motive equipments(such as electrical engineering) to separate.If could not reach this kind of request, also necessarily The beard attain is public with other equipmentses to connect ground, forbid to establish with other equipmentses to connect ground.Connect the location should possibly*near PLC.2.4 The direct current 24 Vs connects line to carryWhen usage had no importation spare part that the source touches to order, the PLC internal 24 V power supply passes the electric current that the importation spare part carries to provide to order a 7 mAs each time toward the importation.The PLC 24 Vs connects line to carry son, can also outwardly the department spread the feeling machine(if near to the switch or the light electricity switch) to provide electric current.When 24 Vs carried son to make to spread the feeling machine power supply, the COM carry Son is the direct current 24 V ground carry.If the adoption expands seaman, then should basic unit with expand the 24 Vs of the unit to carry to link.Moreover, any exterior power supply cant connect Arrive this carries son.If took place to carry phenomenon, the electric voltage will drop into automatically, that importation has no effect to the programmable controller.Each the importation amount of point of PLC of model number is to have provision of.Order to each importation that havent yet use, it doesnt consume an electricity, so in this kind of case, the 24 V power supply carry Son outwardly the power supply flow of the ability can increase.The empty of the FX series PLC carries son, cant use under all circumstances.2.5 The importation connects lineThe PLC accepts a route of travel switch generally,the limit switch etc. the switch of the importation quantity signal.Importations connecting line to carry son is the port that the PLC and exterior spread the feeling machine load conversion signal.Lose Go in to connect line, general the exterior spread the feeling machine and input a port to connect line.Input the spare part can be any NPN tube that have no source to touch to order or gather electrode to open a new road.Input When the spare part connect, input to carry to connect, input circuit to shut to match, input in the meantimeThe give out light of designation diode is bright.An electric circuit that the importation carry with of two electric circuits, the adoption light electricity matches insulation.Two electric circuits take the RC filter, in order to prevent touch to order to tremble to move because of the importation or from the importationThe circuit string the electricity voice for go into cause PLC mistake action.If Be inputting to touch some electric circuit to establish diode, should be small at establishing the electric voltage of the diode in the 4 Vs.If use to take the tongue switch of give out light the diode, establish diode Number cant more than twos. Moreover, importations connecting line should also notice specially the following what time:(1) The importation connects line and want generally over the 30 ms.But if the environment interference is smaller, when the electric voltage doesnt greatly decline, the importation connects line appropriate grow some.(2) Importation,output line and cant use the same root of electric cable, input,output line to want separate.(3) The width of the pulse signal that the programmable controller can accept, should be big in scan time of the period.2.6 The exportation connects line(1) The programmable controller outputted after the electric appliances,the tube output,the transistor output 3 kinds of forms.(2) The exportation carries to connect line to is divided into independence to output with the public exportation.When the PLC exportation acts after the electric appliances or the tube, same two exportations of number carry to connect.At Can adopt the exportation electric voltage of different type and the electric voltage grade in the different set.But can use same type at same exportation in the set,same power supply of electric voltage grade.(3) Because the PLC exportation component is seal to pack in printing to make circuit board, and links to carry the son plank, if output conjunction the load short circuit of the component, will destroy by fire to print to make Circuit board, therefore apply the fuse protection to output a component.(4) Adoption after When the electric appliances output, bear of the electricity sensitive faculty load the size influence to after th
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