1734-OA2模块1734-OA2模块1734-OA2模块1、采用性能优良的电源，电网引入的干扰在PLC控制系统中，电源占有极重要的地位。电网干扰串入PLC控制系统主要通过PLC系统的供电电源（如CPU电源、I/O电源等）、变送器供电电源和与PLC系统具有直接电气连接的仪表供电电源等耦合进入的。现在，对于PLC系统供电的电源，一般都采用隔离性能较好电源，而对于变送器供电的电源和PLC系统有直接电气连接的仪表的供电电源，并没受到足够的重视，虽然采取了一定的隔离措施，但普遍还不够，主要是使用的隔离变压器分布参数大，干扰能力差，经电源耦合而串入共模干扰、差模干扰。所以，对于变送器和共用信号仪表供电应选择分布电容小、带大（如采用多次隔离和及漏感技术）的配电器，以减少PLC系统的干扰。此外，位保证电网馈点不中断，可采用在线式不间断供电电源（UPS）供电，提高供电的安全可靠性。并且UPS还具有较强的干扰隔离性能，是一种PLC控制系统的理想电源。2、电缆选择的敖设为了减少动力电缆辐射电磁干扰，尤其是变频装置馈电电缆。笔者在某工程中，采用了铜带铠装电力电缆，从而降低了动力线生产的电磁干扰，该工程投产后取得了满意的效果。不同类型的信号分别由不同电缆传输，信号电缆应按传输信号种类分层敖设，严禁用同一电缆的不同导线同时传送动力电源和信号，避免信号线与动力电缆靠***行敖设，以减少电磁干扰。PanasonicDV83020LE201ACServoMotorDriverwith60daywarrantyTEXASINSTRUMENTSPLC530-1108USPP5301108PERCEPTRONUS400D45VPanasonicACServoMotorM***A152P1GFreeShipTexasInstrumentsFieldInterfaceModule505-7201(AB01)ACSERVODRIVERZ축DIRVERPANASONICMSDA041A1A07PanasonicMADDT1105001ACServoKRONES2-098-82-140-0​/V0USPP2098821400V0MEASUREX05353500NSPP05353500SPECTRUMCONTROLS1746SC-INO4VINSPP1746SCINO4VIASEABROWNBOVERI57088621NSFP57088621TexasInstrumentTMS9901NLIntegratedCircuit*NEW*PanasonicMGDA093A1AACSERVODRIVERFreeShipTEXASINSTRUMENTSPLC500-2101USPP5002101TexasInstruments500SeriesPLCPart#520C-1102TEXASINSTRUMENTSPLC315-DDNSPP315DDTEXASINSTRUMENTSPLCPM550-410USPPPM550410TexasInstrumentsPM550-416LoopAccessModuleYASKAWAELECTRICSGDA-08VSUSPPSGDA08VSASEABROWNBOVERIDSQC-266CUSPPDSQC266CPANASONICACSERVODRIVEADKF50B5AN60W,80WTexasInstruments2493295-0002PERCEPTRON916-4128DIGITALCONTOURSENSORTRICAMALLENBRADLEY1333-BAAUSPP1333BAABARBERCOLMANA-11844-1USPPA118441AYDINCONTROLS460-5045-501USPP4605045501PanasonicACServoMotorM***A082A1AFreeShipPanasonicACServoMotorMHMD082P1SASEABROWNBOVERIYT213001-AAUSPPYT213001AATEXASINSTRUMENTSPLC120-1113NSFP1201113PERCEPTRON911-0010OnePanasonicACServoMotor***202A1GFreeShipCOMPUMOTORA/AX-106-178-SUSPPAAX106178SASEABROWNBOVERI283-012USPP283012GUTICORPMD2000-N016S1​W2HUSPPPMD2000N016S1W​2HTexasInstruments500-5055ASEABROWNBOVERI57770163NSPP57770163Returns:NotacceptedTEXASINSTRUMENTSPLC305-8ADCNSFP3058ADCSTEARNS108778105007NSFP108778105007TEXASINSTRUMENTS500-5037-A**ALLENBRADLEY2711-K6C10L1USPP2711K6C10L1TEXASINSTRUMENTSPLC505-5103NSFP5055103OMRONNT631C-ST141B-​***USPPNT631CST141BEV​2TEXASINSTRUMENTSPLC7MT-1300USPP7MT1300PanasonicACServoDriver/MSDA083D1A/750WASEABROWNBOVERI***PS-7738-EUSPP***PS7738EWINDSORMPMSI3/1S3USPPMPMSI31S3KOLLMORGENINDBDS4A-203J-000​1-202B21PUSPPBDS4A203J00012​0ABAILEYCONTROLSINIPT-01USPPINIPT01SAFTRONICSGP10E1ST32030B​1USPPGP10E1ST32030B​1TEXASINSTRUMENTSPLCMTUSPPMTMODICONAS-984A-816USPPAS984A816YASKAWAELECTRICJRMSP-P7011NSFPJRMSPP7011TEXASINSTRUMENTSPLC560-2120WNSFP5602120WPANASONICACSERVODRIVERMDD203A1W200V50/60HZ2.0KW2500P/RHASETexasInstrumentsRTU-8450P1CommunicationBoardTEXASINSTRUMENTSPLC7MT-210NSPP7MT210PanasonicACServoMotor400WattNEWMFA040LB2BSAforStarSTARAutomationRoboUSEDPerceptron96KDSPFrameGrabber495-0117-03PanasonicACServoDriverMUDS083A1MFreeShipFUJIELECTRICUG520H-VC1ZUUSPPUG520HVC1ZUAUTOMATEDLOGICSE6104NSFPSE6104)