PLC控制系统中安全电路的设计

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JournalofAnyangInstituteofTechnology2009PLC1,2(1.,455000;2.,455000):,,,。:PLC;;;:TH188:A:1673-2928(2009)04-0036-04PLC、,,、,、。,PLC,。11.1“EN”,,:1)A。,。EN292-1、EN292-2。2)B。。B1B2。B1,EN60204-1“,”;B2,EN418“”。3)C。。,prEN616~620“”。1.21.2.1“”(、)“”,“”,“”。“”:“”,,,,。1“”2“”1,“”,,。2“”,,,:2009-01-05:(1974-),,,,。36。1.2.2“”,,“”。,“”。3。“”“”,,。,“。3“”1.2.3,,。,,;,。,,、,,/“”;。41.3EN60204-1,,,,。:1),PLC,,;2)、;“”、“”“”,“”、“”“”;3)“”,(、)。22.1EN954-1,B,1,2,3,4,,4。:B:、。B,B。1:,。:。2:1,,:。3:,。:。4::,。,。:,。,EN1050,、,PLC37JournalofAnyangInstituteofTechnology2009。2.22.2.11,5。K1,S1PLC,,,K1PLCPLC,PLC,、。1。512.2.2345,,:;K1。,。,,。34,6、7。63746、7,34,,。,4。2.2.3。SIEMENS3TK28。、、、E-stop、、,。。2.3。:。,,。,。,、。,。3,,,、。:[1].Preventa[M].[2].SafetyNow[M].[3].S7-200/300/400PLC———[M].:,2005.38TheApplicationofIEGTFrequencyConvertertotheVariable-speedofMainMotorofAngangSUNXiaohong(AnyangInstituteofTechnology,Anyang455000,China)Abstract:Withthedevelopmentinfortyyears,atransitionfromDCtoACdrivehasbeenrealizedforthehigh-performance.TheapplicationofIEGTfrequencyconvertertothe8000KWmainmotorforvariable-speeddriveinAngangisalsodealtwithinthispaper.Keywords:synchronizedmotor;drivemode;IEGT(injectionenhancedgatetransistor)TheDesignoftheSafeElectricCircuitinthePLCControlSystemLIUHaijun1,WANGJianfang2(1.HenanANCAIHI-TECHCo.,LTD,Anyang455000,China;2.AnyangNo.2MachineToolFactory,Anyang455000,China.)Abstract:Thesafetyofmachineistheimportantindicatorsintheprocessofdesignandmanufacture.Itisacomplexsystematicengineering,plentyoffactorsneededtobeconsidered.Todesignthesafetycircuitofthemachinescontrolsystemisabsolutelynecessary.Keywords:PLCControlsystem;safetycircuit;safetycriterion;emergencydisjunctioncircuit(35)PLC39

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