1794-OA81794-OA81794-OA83、正确选择接地点，完善接地系统接地的目的通常有两个，其一为了安全，其二是为了***干扰。完善的接地系统是PLC控制系统抗电磁干扰的重要措施之一。系统接地方式有：浮地方式、直接接地方式和电容接地三种方式。对PLC控制系统而言，它属高速低电平控制装置，应采用直接接地方式。由于信号电缆分布电容和输入装置滤波等的影响，装置之间的信号交换频率一般都低于1MHz，所以PLC控制系统接地线采用一点接地和串联一点接地方式。集中布置的PLC系统适于并联一点接地方式，各装置的柜体中心接地点以单独的接地线引向接地极。如果装置间距较大，应采用串联一点接地方式。用一根大截面铜母线(或绝缘电缆)连接各装置的柜体中心接地点，然后将接地母线直接连接接地极。接地线采用截面大于22mm2的铜导线，总母线使用截面大于60mm2的铜排。接地极的接地电阻小于2Ω，接地极***好埋在距建筑物10~15m远处(或与控制器间不大于50m)，而且PLC系统接地点必须与强电设备接地点相距10m以上。信号源接地时，屏蔽层应在信号侧接地;不接地时，应在PLC侧接地;信号线中间有接头时，屏蔽层应牢固连接并进行绝缘处理，一定要避免多点接地;多个测点信号的屏蔽双绞线与多芯对绞总屏电缆连接时，各屏蔽层应相互连接好，并经绝缘处理。选择适当的接地处单点接点。※推荐品牌：※推荐公司Allen-Bradley厦门泰尼电气有限公司Schneider联系人：小黄（销售代表）Triconex固定电话：0592-6809319FOXBORO***:2917675397ABB邮箱：2917675397@***.comSIEMENS传真：0592-6890859MOTOROLA网址：www.xmtaini.comXYCOM地址：厦门海沧街道滨湖一里7号RexrothIndramat邮编：361026手机：18950191386RexrothIndraDriveMKCU01.2N-SE-SE*​-025-NN-S-NN-NWBOSCHREXROTHECODRIVECSDKC10.3-012-3-M​GP-01VRS(NEW)BoschRexroth/Indrama​tCZM01.1-01-07(R911260068)RexrothAA10VSO28DR-30RPistonPumpREXROTH0-608-701-003USPP0608701003REXROTH0-608-701-017USPP0608701017NewBoschRexrothRotaryCylinder0822935206SeriesTRRREXROTH1070050560-408USPP1070050560408RexrothServomotor100WM***020B-0300-NN​-M0-CG1REXROTHVALVER900576060HYDRAULICNEWNOBOXRexrothCircuitBoardVT-KRRA2-527-20/V0/2CH08114050RexrothIndramatControlBTM13.1-TA-BA-T​A-SA-BA-VA-2EAREXROTHINDRAMATVT5007-17BOARDNEWVT500717REXROTHINDRAMATVT5007-17ABOARDNEWVT500717AREXROTHINDRAMAT109-0852-4B01-0​7BOARDNEWRexrothIndramatControlBTM13.1-NN-TA-T​A-TA-BA-BA-2EABoschRexrothKit#R978700223/KT007323365KIT-723265BOSCH-REXROTHMAC112C-O-ED-4-C/1​30-A-O/W1520LVRexRothIndramatECODriveDKC03.3-040-7-F​Ww/ProfiBusRexrothRacineSilentvane30GPMPumpPSV-PSCF-40HRM-​62IndramatRexrothInput/OutputModuleDEA05.1dea5.1newIndramatRexrothInput/OutputModuleDEA4.1dea04.1newREXROTHINDRAMATMOTORMKD071B061ALPHAGEARBOXSP100BoschRexrothIndradriveMHMS011N-W0210-A-07-N​NNNIndramatTDM1.2-50-300-W1ACServoControllerRexrothSD301REXROTHNEWINBOXRexrothProp.VerstarkerVT11398ARexrothDBETR-10/315PropValvew/PilotLFA25DBW2-62REXROTHR900570744FD:68705M-3SEW6U36/420MG96N9K4RexrothDBETE-61/200G24​K31A1VValveR901029968NOSRexrothM-3SEW6U36/420M​G96N9K4R900570744ValveNewRexroth4WRAP6W7-04-21/24K4/MProportionalValveNewBoschRexrothEcodriveServoDKC10.3-012-3-M​GP-01VRSRexrothIndramatServoMotorMAC090B-0-JD-4-​C/13CREXROTHMODEL3460321022MEASURINGPLATEBoschRexrothMTC-P01CNCmoduleFWA-MTCP01Manne***annRexrothIndramatRMK12.2-IBS-BKLNEWRMK122IBSBKLREXROTHCYLINDER6X30RexrothHydraulicElectricReliefValveNEWDB20B2NewRexrothIndramatMKD090BServomotorREXROTHPPV202SRV110LHYDRAULICUNITRexrothZDREVP2proportionalpressurereducingvalveRexroth4WREE16-11/24Z4/MT60098proportionalvalveRexroth4WREE32-11/24Z4/M485172/1proportionalvalveRexrothIndramatMotorADF104B-B05TA1-​BS00-A2N1RexrothCaterpillarA10V28RHHydraulicRotaryGroupREXROTHHYDRAULICPISTONPUMPA10V0140BoschRexrothR480208879valvevalvedriverVDSCD01RexrothhydraulicPumpPVV163160MANNE***ANNREXROTHVT11076-21NSPPVT1107621REXROTHH160CA-50X36-ME​5-V-PU-PU-4-G-2​50-S-A-1NSPPH16REXROTHPUMPSERVOVALVE,01-45-2097-1REXROTHVT5008PROPAMPLIFIERNEWREXROTHH160CA-63X28-MT​4-N-PU-PU-4-G-3​65-S-A-33-RF1NSPREXROTHVT5035-1X/SO43A​-1631NSFPVT50351XSO43A16​3RexrothPowSupply#0608830206/SB3010608830206RexrothHandheldRemoteUnitP/N3622501000NEWREXROTHDBEM10-51/315YG24K4​MVALVEMNR:R900547401REXROTHR911295613BOARDNEWR911295613REXROTHBOSCHTERMINALVALVESYSTEMHF0302lowpriceBoschRexrothIndramatPowerLineFilterNFE02.1-230IndramatRexrothDEA4.1Input/OutputModuledea04.1BoschRexrothDirectionalControlValve9810232070321RexrothHydraulicDirectionalValveNEWRexrothIndracontrolL40CML40.1-NP-220-​NA-NNNN-NWRexrothAmplifierCardDPR-10RebuiltREXROTHLINEARACTUATORNo.R036050000(592mm)NEWR902087015THROUGHDRIVEASSEMBLYK04BOSCHREXROTHRexrothHLB01.1C-01K0-N​06R0A-007-NNNNREXROTH1070084618-304USPP1070084618304NEWREXROTH0-608-701-017ELECTRICDRIVE0608701017RexrothHydraulicPumpNewPV6V3-21/40R8MC​100A1/5MANNE***ANNREXROTHVT11076-21USPPVT1107621Rexroth5HP5GPMHydraulicPowerUnitHydraulicpumpRexroth20hpAA10VREXROTHDPC1USPPDPC1REXROTH0-608-701-002USPP0608701002REXROTHR978714154NSPPR978714154REXROTHTYPEPROTAIRCONTROLVALVE8P-1SP55556-3SiemensRexRothMotorPumpCombo1LA5090-4AA91_E9F58REXROTHDBET-52/315YG24​K4MHYDRAULICPROPORTIONALVALVEREXROTHR900758430HYDRAULICVALVENEW!!!REXROTHIndraControlVCP-20.1BUN.768​PB-NN-PWREXROTH0-608-830-158USPP0608830158REXROTHINDRAMATSERVOMOTORMKD090B-035-KP1​-KNusedRexrothVT5006-17bServoAmplifierCard!NEW!Manne***annRexrothServoControllerCardVT5006-17!NEWFordTractorHydraulicValveAG4755-0-1-31byRexrothRexrothIndramatMHD041B-144-PPO​-UN-ServoMotorREXROTH0-608-750-056USPP0608750056ME5-HH-CREXROTHPC-C-186014MP1-HH-CREXROTHPC-C-182255MANNE***ANNREXROTH160140NSFP160140)