三菱 QCPU 用户手册（函数说明，编程基础）.pdf

SAFETYPRECAUTIONS(Alwaysreadtheseinstructionsbeforeusingthisequipment.)Beforeusingthisproduct,pleasereadthismanualandtherelevantmanualsintroducedinthismanualcarefullyandpayfullattentiontosafetytohandletheproductcorrectly.Inthismanual,thesafetyinstructionsarerankedasDANGERandCAUTION.DANGERIndicatesthatincorrecthandlingmaycausehazardousconditions,resultingindeathorsevereinjury.Indicatesthatincorrecthandlingmaycausehazardousconditions,CAUTIONresultinginmediumorslightpersonalinjuryorphysicaldamage.NotethattheCAUTIONlevelmayleadtoaseriousconsequenceaccordingtothecircumstances.Alwaysfollowtheinstructionsofbothlevelsbecausetheyareimportanttopersonalsafety.Pleasesavethismanualtomakeitaccessiblewhenrequiredandalwaysforwardittotheenduser.A-1

[DesignPrecautions]DANGERInstallasafetycircuitexternaltothePLCthatkeepstheentiresystemsafeevenwhenthereareproblemswiththeexternalpowersupplyorthePLCmodule.Otherwise,troublecouldresultfromerroneousoutputorerroneousoperation.(1)OutsidethePLC,constructmechanicaldamagepreventinginterlockcircuitssuchasemergencystop,protectivecircuits,positioningupperandlowerlimitsswitchesandinterlockingforward/reverseoperations.(2)WhenthePLCdetectsthefollowingproblems,itwillstopcalculationandturnoffalloutputinthecaseof(a).Inthecaseof(b),itwillholdorturnoffalloutputaccordingtotheparametersetting.NotethattheAnS/Aseriesmodulewillturnofftheoutputineitherofcases(a)and(b).QseriesmoduleAnS/Aseriesmodule(a)ThepowersupplymodulehasovercurrentprotectionequipmentOutputOFFOutputOFFandovervoltageprotectionequipment.Holdorturnoffall(b)TheCPUmoduleself-diagnosisfunctions,suchasthewatchdogoutputaccordingtoOutputOFFtimererror,detectproblems.theparametersetting.Inaddition