1746-0B16
价格:2258.00
1746-0B161746-0B161746-0B16虽然工业控制机和可编程技术'>控制器本身都具有很高的可靠性,但如果输入给PLC的开关量信号出现错误,模拟量信号出现较大偏差,PLC输出口控制的执行机构没有按要求动作,这些都可能使控制过程出错,造成无法挽回的经济损失。影响现场输入给PLC信号出错的主要原因有:1、造成传输信号线短路或断路(由于机械拉扯,线路自身老化,连接处松脱等),当传输信号线出故障时,现场信号无法传送给PLC,造成控制出错。2、机械触点抖动,现场触点虽然只闭合一次,PLC却认为闭合了多次,虽然硬件加了滤波电路,软件增加微分指令,但由于PLC扫描周期太短,仍可能在计数、累加、移位等指令中出错,出现错误控制结果。3、现场变送器,机械开关自身出故障,如触点接触不良,变送器反映现场非电量偏差较大或不能正常工作等,这些故障同样会使控制系统不能正常工作。影响执行机构出错的主要原因有:1、控制负载的接触不能可靠动作,虽然PLC发出了动作指令,但执行机构并没按要求动作。2、控制变频器起动,由于变频器自身故障,变频器所带电机并没按要求工作。3、各种电动阀、电磁阀该开的没能打开,该关的没能关到位,由于执行机构没能按PLC的控制要求动作,使系统无法正常工作,降低了系统可靠性。要提高整个控制系统的可靠性,必须提高输入信号的可靠性和执行机构动作的准确性,否则PLC应能及时发现问题,用声光等报警办法提示给操作人员,尽***除故障,让系统安全、可靠、正确地工作。备货,备货,降降降,火火火,火火火……————————————————————————————————公司名称:厦门泰尼电气有限公司联系人:小黄(销售代表)联系电话:0592-6809319传真号码:0592-6890859(麻烦备注01006收)手机:18950191386***号码:2917675397邮箱:2917675397@***.com诚信经营,质量为首,诚信至上,泰尼电气小黄竭诚为您服务!!!————————————————————————————————ModiconAS-B863-03224VDCMonitoredInputASB863032RelianceElectric0-49042-01CardpakPowerAmplifier0490201GE7700Series6"BreakerFeederMCC***et3-Wire20AITEGould56005640FusedSz1A831CMCC***et30ASouthernTransformer7.5kVA480/277V7.5kVA1PHCH/WestinghouseHFD3050LA0250ABreakerw/AuxSwitchCutlerHammerHFD3050L-A02CutlerHammerF10UnitrolSize1MCC***et3ACHSz1F-103AmpMCCBOmronC500-OA225OutputUnitC500OA2253G2A5-OA225PLCSquareDMod6SzSize1FusedMCCB***et30Amp12"GESpectraADS32030HDFusePanelboardSwitch30A240VTelemecaniqueSize2BreakerTypeMCC***et15ASquareDMod6Size1FusedMCCB***et30A850212"SquareDModel6Size1FusedMCC***et30A853612"Mod6MCCBSz1GeneralElectricGEMotorControlCenterDoor21"tallCutlerHammerUnitrolF10Dual100AmpAFeederMCCBFederalPacificMSPCombinationMotorStarterUnitQMQBOmronCV500-BI062BaseUnitRackCV500BI062SquareDHU363DS100A600VACStainlessSteelSafetySwitchHU363-DSType3R44XMitsubishiBreakerNV225-SSNV150Amp150Amp150AAIndramatTrans01.3/1ServoControllerTrans01Trans01IndramatTrans01.4/1ServoControllerTrans01ControlIndramatTrans01.5/1ServoControllerTrans01ControlIndramatTrans01.3/1ServoControllerTrans01ControlIndramatTrans01.0/1ServoControllerTrans01ControlRelianceElectric109081-102-WCard109081102WNEWRelianceElectricRE109081-102RC109081102RCCutlerHammerUnitrolSize1StarterMCC***et7AmpCutlerHammerAdvantage50AFeederMCC***et6in6inModiconAS-BCTR-224A120-CompactCounterInputCTR-224TorringtonSphericalRollerBearing23124W33BRNEW/NIBMitsubishiBreakerNF-SF3100NF100Amp100Amp100AASharpZW-14PC2PulseCatchUnitZW14PC2FujiElectricBreakerBU-JSB3200200Amp200Amp200AARelianceElectricS-67118S67118AnalogOutputModulePLCAutoMaxDCS57410SquareDOmegaPakClass8804PT00F***E16PTOOF***5HPBVCutlerHammerAdvantage40AFeederMCC***et6in6inRelianceElectric0-51805-5PIAFPulseInputAmplifierSiemensTiastarSize1BreakerTypeMCC***et30AHMCPToshiba13M1-0100ERA13MACServoMotor100W/3000RPMSquareDOmegaPakClass8804PT00F***PTOOF***5HP5HPRelianceElectric0-52875-1VTDBCircuitBoard0528751SquareDCircuitBreakerKAL26200WBB200AmpA200AAmpKlockner-Moeller***MotorDriveforNZ***-250BreakerITEGould5600/5640Size130AMCC***et30AmpA203CMCCBGE8000LineSize1FusibleMCCB18"***etMotorControlCenter7700PlusFederalPacificFH20CFMD20kVATransformer460/460Y/266V460Y20kVA3PHFPTGeneralElectric7700Plus30AmpFusedDualFeederMCCBMCC***et800012"GETran***ation452TRTDTran***itterMooreE/PTransducer77-16FlowControlTran***ation650T-65R/ITran***itterMooreE/Ptransducer77-16FlowControlTran***ation752TRTDTran***itterMooretransducer77-16FlowControlTran***ation452TRBTran***itterMooreE/Ptransducer77-16FlowControlAlphaSPK140-MX2-8-051-001GearReducerHead4000RPMB5/B5SPX140MX28051001SquareDCircuitBreakerKAL3609090AmpA90Amp90ASquareDCircuitBreakerKAL3609090AmpA90Amp90A)