描述
2009年8月31日,現(xiàn)場(chǎng)檢查時(shí)發(fā)現(xiàn)#5機(jī)#11 I/O站和#26 I/O站主控器故障,均為A主控故障燈閃亮,雙機(jī)冗余通訊燈不亮,B主控備用。從工程師站上查看,主控制器顯示A主控為主,B主控備用,狀態(tài)顯示正常;查閱DCS歷史記錄,無(wú)相關(guān)故障記錄;相關(guān)I/O站內(nèi)各參數(shù)采集、控制設(shè)備動(dòng)作均正常。經(jīng)分析,認(rèn)為主控制器當(dāng)前仍正常運(yùn)行,但雙機(jī)冗余的同步性存在問(wèn)題,如果這時(shí)發(fā)生主控切換將會(huì)出現(xiàn)較大擾動(dòng)。而在這之前異??刂破鞑荒苋哂嗲袚Q故障已發(fā)生過(guò)多次,如#3爐DCS系統(tǒng)曾發(fā)生一次風(fēng)壓自動(dòng)調(diào)節(jié)偏差大于36OPa時(shí),運(yùn)行人員手動(dòng)干預(yù)操作送風(fēng)機(jī)勺管調(diào)節(jié)執(zhí)行機(jī)構(gòu)無(wú)效,急忙至就地進(jìn)行手操。熱工通過(guò)工程師站,檢查對(duì)應(yīng)的#12 I/O站,發(fā)現(xiàn)A主控離線,B主控備用,在I/O站上查看A主控系統(tǒng)燈1和系統(tǒng)燈2均不亮,故障燈未亮,表明該主控已失去與系統(tǒng)網(wǎng)的數(shù)據(jù)交流,但主控未實(shí)現(xiàn)冗余切換。另#3爐#23 I/O站也曾發(fā)生過(guò)A主控故障離線,故障燈與雙機(jī)冗余數(shù)據(jù)交換燈均不亮,主控制器未自動(dòng)切換。這些故障案例表明,MACS系統(tǒng)主控制器冗余切換功能不完善,某種故障狀態(tài)下該功能失效。
主營(yíng):世界知名品牌的PLC、DCS系統(tǒng)備件模塊
①Allen-Bradley(美國(guó)AB)系列產(chǎn)品》
②Schneider(施耐德電氣)系列產(chǎn)品》
③General electric(通用電氣)系列產(chǎn)品》
④Westinghouse(美國(guó)西屋)系列產(chǎn)品》
⑤SIEMENS(西門子系列產(chǎn)品)》
⑥銷售ABB Robots.FANUC Robots、YASKAWA Robots、KUKA Robots、Mitsubishi Robots、OTC Robots、PanasonicRobots、MOTOMAN Robots。
⑦estinghouse(西屋):OVATION系統(tǒng)、WDPF系統(tǒng)、MAX1000系統(tǒng)備件。
⑧Invensys Foxboro(福克斯波羅):I/A Series系統(tǒng),F(xiàn)BM(現(xiàn)場(chǎng)輸入/輸出模塊)
順序控制、梯形邏輯控制、事故追憶處理、數(shù)模轉(zhuǎn)換、輸入/輸出信號(hào)處理、數(shù)
據(jù)通信及處理等。Invensys Triconex:冗余容錯(cuò)控制系統(tǒng)、基于三重模件冗余(TMR)
結(jié)構(gòu)的zui現(xiàn)代化的容錯(cuò)控制器。
⑨Siemens(西門子):Siemens MOORE,Siemens Simatic C1,Siemens數(shù)控系統(tǒng)等。
⑩Bosch Rexroth(博世力士樂(lè)):Indramat,I/O模塊,PLC控制器,驅(qū)動(dòng)模塊等。
◆Motorola(摩托羅拉):MVME 162、MVME 167、MVME1772、MVME177等系列。
FANUC A16B-2200-0021/?04C *NICE*
FOXBORO 136 COMPUTING REALY 136-4-1 *NEW*
ALLEN BRADLEY 1785-L20B/E ENHANCED PLC-5 CONTROLLER
CUTLER HAMMER HM2P250K5M01 MOTOR CIRCUIT PROTECTOR *NEW
SOFTROL OPTIMA XERIC MODEL 152 *NICE*
ABB MICROSHIELD O/C 474M04106000 *NICE*
HONEYWELL R7847B 1064 *NEW*
K-TRON SMARTLOAD TRANSDUCER K-SFT-6A *NEW*
ATAS GmbH SERVO-02
NEUNDORFER MICRO VOLTAGE CONTROL
ANDANTEX TRANSDUCER MO-04496-00 *NEW*
CUTLER-HAMMER PANEL MATE 92-00816-00 **NEW**
MODICON M100D DIGITAL DRIVE 610MDC-205-31 *NICE*
INDUSTRIAL DYNAMICS MEMORY CARD 22289
BETA TECH BETASERVO AF-SERVO-030-00?1 *NICE*
HONEYWELL DC330E-KE-0D0-2?1-000000-200 *NEW*
HONEYWELL DC330E-KE-200-2?0-000000-00-0 *NEW*
GE 44A294564-G01 BOARD *NICE*
MODICON AS-P530-0MA POWER SUPPLY *NICE*
GOULD AS-P530-0MA POWER SUPPLY *NICE*
HITACHI IGBT INVERTER J300-055HFU *NEW*
DAYTRONIC 4030 CONTROLLER INDICATOR *NEW*
PARKER EZ00-150B/3 DRIVER BOARD *NEW*
STANLEY ES40-020 NUTRUNNER *NICE*
CHESTERTON DOUBLE BALANCED DOUBLE SEAL 241-15 SA TC/CBS
ABB ISOLATION CONTACTOR EHW250WC-1L11 *NEW*
ORMEC SAC-J47001 SERVO DRIVE *NICE*
TODD PRODUCTS MDT-164-2415R POWER SUPPLY *NEW*
BALDOR ZD18H225-EO VECTOR DRIVE VE0804B00 *NICE*
ALLEN BRADLEY 7300-AVPT1 *NICE*
ALLEN BRADLEY 20AE9P0A0AYNNNN?N POWER FLEX 70 *NEW*
GOULD MODICON LEVEL-3 16K 3CARD CHASSIS 584 AS-584A-002
GOULD MODICON LEVEL-3 16K 3CARD CHASSIS 584 AS-584A-351
XYCOM 2005 *NICE*
XYCOM 4810E IT TERMINAL *NICE*
BAILEY CONTROLS DIGITAL CONTROLLER 53MC5 W/ ADAPTER KIT
TB WOOD’S XL02V4B3N
METTLER TOLEDO TB600364
FANUC A06B-6066-H003 SERVO AMPLIFIER *NICE*
GE CIRCUIT BOARD 44A296344-001/4?4A294528-G02 *NEW*
GE CIRCUIT BOARD 44B395087-001/4?4A397814-G01 *NEW*
FANUC A06B-6066-H005 SERVO AMPLIFIER *NICE*
MITSUBISHI PROCESSOR EXTENSION UNIT F1-60ER-UL *NEW*
GE CIRCUIT BOARD 44A296344-001/4?4A294528-G02 *NEW*
FANUC A06B-6066-H233 SERVO AMPLIFIER *NICE*
DAYTONIC MODEL 3530 *NICE*
NEDERMAN HOSE REEL SER. 884 *NEW*
DANFOSS VARIABLE SPEED DRIVE 175L1023 *NICE*
ALLEN BRADLEY 1389-AA045 SERVO AMPLIFIER *NICE*
ALLEN BRADLEY 1336-B003-EOD-L?3 *NEW*
ABB NGPS-02 REV. D POWER SUPPLY BOARD *NEW*
HONEYWELL C7612E1104 DYNAMIC SELF-CHECK FSG *NEW*
BAILEY INFI 90 IMAS102 *NICE*
BAILEY INFI 90 INNPM01 *NICE*
BAILEY ANALOG MODULE NAOM01 *NEW*
ALLEN BRADLEY 1771-OFE2/B ANALOG OUTPUT *NEW*
FANUC A16B-3200-0070/?03A *NICE*
SIEMENS 6ES5-944-7UB21 *NICE*
SIEMENS DIN 41752 MODULAR POWER SUPPLY *NICE*
FANUC SERVO AMPLIFIER A06B-6066-H223 *NICE*
FANUC SERVO AMPLIFIER A06B-6066-H223 *NICE*
ARITHMETI LOGIC UNIT JANCD-HA03 *NEW*
CUTLER-HAMMER CIRCUIT BREAKER W/ SHUNT TRIP HMCP400X5