三菱 FX3U-FLROM- 硬件手册.pdf

USERSMANUAL-HardwareEditionFX3USERIESPROGRAMMABLECONTROLLERSMainUnitACPowerTypeFX3U-MR/ESFX3U-MT/ESFX3U-MT/ESSDCPowerTypeFX3U-MR/DSFX3U-MT/DSFX3U-MT/DSSInput/OutputPoweredExtensionUnitFX2N-E-Input/OutputExtensionBlockFX2N-8E-FX2N-16E-SpecialAdapterFX3U-4HSX-ADPDisplayModuleFX3U-7DMMemoryCassetteFX3U-FLROM-

SafetyPrecautions(Readtheseprecautionsbeforeuse.)Beforeinstallation,operation,maintenanceorinspectionofthisproduct,thoroughlyreadthroughandunderstandthismanualandalloftheassociatedmanuals.Also,takecaretohandlethemoduleproperlyandsafely.Thismanualclassifiesthesafetyprecautionsintotwocategories:and.Indicatesthatincorrecthandlingmaycausehazardousconditions,resultingindeathorsevereinjury.Indicatesthatincorrecthandlingmaycausehazardousconditions,resultinginmediumorslightpersonalinjuryorphysicaldamage.Dependingonthecircumstances,proceduresindicatedbymayalsocausesevereinjury.Itisimportanttofollowallprecautionsforpersonalsafety.Storethismanualinasafeplacesothatitcanbetakenoutandreadwhenevernecessary.Alwaysforwardittotheenduser.1.DESIGNPRECAUTIONSReference•MakesuretohavethefollowingsafetycircuitsoutsideofthePLCtoensuresafesystemoperationevenduringexternalpowersupplyproblemsorPLCfailure.Otherwise,malfunctionsmaycauseseriousaccidents.1)Mostimportantly,havethefollowing:anemergencystopcircuit,aprotectioncircuit,aninterlockcircuitforoppositemovements(suchasnormalvs.reverserotation),andaninterlockcircuit(topreventdamagetotheequipmentattheupperandlowerpositioninglimits).1232)NotethatwhenthePLCCPUdetectsanerror,suchasawatchdogtimererror,duringself-147diagnosis,alloutputsareturnedoff.Also,whenanerrorthatcannotbedetectedbythePLC164CPUoccursinaninput/outputcontrolblock,outputcontrolmaybedi