BALDOR FMH2A03TR-EN43CZ

BALDOR FMH2A03TR-EN43CZ
BALDOR FMH2A03TR-EN43CZ
BALDOR FMH2A03TR-EN43CZ
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2.1.6 系统接口问题
某电厂200MW供热机组电气并网信号至DEH只有一路，在机组正常运行的过程中该电气并网辅助接点故障出现抖动，造成汽轮机跳闸。采取措施：使用屏蔽通讯电缆，增加冗余接点信号，并进行3取2逻辑判断。
2.2 人为因素造成DCS故障实例
人为因素造成DCS的故障，在生产过程中也较为常见。包括人员造成的误操作，管理制度不完善及未按规程规定执行工作步骤等。
2.2.1 未按规程规定执行工作步骤
(1)某电厂新华XDPS系统DEH的#12DPU故障，对其在线更换，使用的是小机MEH系统的DPU备品。在更换DPU后，只将#32主控DPU拷贝至#12副控未写电子磁盘，其实质只是将副控DPU的内存内容与主控保持一致，#12DPU电子磁盘内容仍为MEH小机控制逻辑。在系统停电吹灰后，按顺序启动#12DPU成为主控，由于其逻辑为MEH逻辑而非DEH逻辑，造成系统通讯异常、数据频闪、画面显示不正常，人机接口站无法操作。在重新对#12DPU送电，拷贝#32DPU逻辑并写盘后正常。
(2)某电厂HIACS-5000CM控制系统，循环水泵房远程I/O卡件更换，未执行在线更换操作步骤，其卡件未能激活进入工作状态，导致现场设备状态与DCS画面不符，设备无法控制。执行在线更换步序后，系统正常。
Nikon Circuit Board 2S701-454, 2S015-184-1, NK2863

Freescale IC MCU 32BIT 52KB, MCF5282CVF80, FIQAN0538D, L95M, G31

Siemens FC/GBd Ethernet 850nm V23826-K305-C363, V23826K305C3631174C

ATC CAPACITOR CERAMIC MULTILAYER, 100A360FT150XTV, 100A360FTDVDW2

SEMIKRON SKiiP 942 GB120-317CTV, 942GB120-317CTV, See Pix & P/N, Rack E E19

Microchip PIC12C508A-04/SN 8-bit Microcontrollers MCU .75KB 25 RAW48

MYKROLIS YY5611280 CHEMLOCK PFA TEFLON 1/2" FLARETEKA DRAIN, RACK E E13

Phoenix Contact 2730145, IBS ISA FC/486DX/I-T-I45, Shipsameday w/2-3days1179A

FESTO Parallel gripper DHPS, HGP-35-A-B, 197551, HGP35AAB, Shipsameday1641P1

Aera Mass Flow controller, N2, 50 SLM, 1/4"VCR, FM-3710D, 3030-11627 1231EB

INFICON AG LI-9496 BALZERS Pirani Capacitance Diaphragm Gauge, PCG550 1220P3

Motorola MVME400 Dual Channel RS232C Communications Module, SHIPSAMEDAY1531C

Phoenix Contact insert module 3P, 1663226, HC-M-03-MOD-BU

SENSORTECHNICS Pressure transmitters, BTE5001D1A, BTE5001D1A-SQ96632 1638B1

SWAGELOK 3-Way Ball Valve Reinforced, SS-63XVF6-F8-53D

SWAGELOK Poppet Check Valve 3/4" VCR 1/3 psig, SS-CHVCR12-1/3, SHIPSAMEDY131Q5

HONEYWELL HIGH GAIN DIFFERENTIAL AMPLIFIER, 1881-HGD

Shimpo Gear Redurcer Ratio, VRSF-15C-200

Gould AS-3881-001, Modicon B881-001

Reliance Eletric PC Board Transductor VCTA, 0-52854,  Shipsameday 1226E

Durant-Eaton 47007184 C-FLANGE HALL-EFFECT SENSOR MOTOR 143TC, 145TC, 182C, 184C

SMC Gas Panel Output, Devicenet IN587-16, VV100-49-X143, Y3XC31 

AERA Flow Controller 1000SCCM, GAS N2, PI-980, 0190-27878, SHIPSAMEDAY1542C4

Reliance Electric Pc Board Two Phase 0-52842, 801416-90A, SHIPSAMEDAY1208E

Tyco CONN BNC JACK R/A 50 OHM, 413515-2,  Shipsameday, 139A

Omega Accelerometer Power Supply,  ACCPS4, ShipSameDay 1230H

RICE LAKE Calibration Weight Set 1g-1Kg, CLASS F, DENSITY 7.84G/cm3, S/N 4HQ2

Allen Bradley CompactLogix L43 Controller 1768-L43,  SHIPSAMEDAY1615C1

Festo CPV14-GE-FB-6 18261 W907 PN 003296 CPV14-VI-0025314407-000060 135M

Fixed Inductors 1812SMS Midi Spring 22nH 5% 3A, 1812SMS-22NJLC Z20

Fixed Inductors 1812SMS Midi Spring 39nH 5% 3A, 1812SMS-39NJLC Z21

ITT CANNON CABLE MDNB1-25PH001, 096548-0004, LOT-8829-604, BOX 13 "B3"

Inficon AG, PCG, LI9496 Balzers, LI-9496, Type PCG400-S, KF16, NewnoBox 1544B3

Eagle Signal HG933A6, Flexoplse, Shipsameday Rack C C14

Hirose DF30FC-20DP-0.4(82), H3864DKR-ND

TESCOM Pressure Regulator 250 psig with 2 gauge & swagelok fitting, 64-2643KHT16

ADVANCED ENERCY ANALOG CONTROL FIXTURE MN3155061-001

LAKESHORE Temperature Monitor 211S

TDK Power Supply 2EA00E182C, MSE182C, 9ZA01391, Shipsameday Rack L L63

MDC Angle Valve HV Pneum, NW80, MDC LAV-300-PAA-02-03, 311079-09

Swagelok Secondary Packed Bellows Sealed 1/2" FEMALE VCR, SS-8UW-V47, ZE39

MKS BARATRON PRESSURE Transducer 740B51PCB4GD + LDM-A51PB4DD1, SHIPSAMEDAY124R1

MKS BARATRON PRESSURE Transducer 100 TORR, 750B12TCD2GA + LDM-A12TA3AA1 124R2

Swagelok Valve (3X) 1/4" Female VCO, SS-4BY-V68-1C, SS4BYV681C 

MKS i-Baratron Digital Manometer 10 Torr, DMA-23383, DMA23383 Shipsameday1548E4

PHOENIX CONTACT, CDS CPU, Electronics Maassluls Holland, See Detail Below 130A2

PHOENIX CONTACT, CDS CPU, Electronics Maassluls Holland, See Detail Below 130A4

MKS Baratron Pressure Transducer 250 PSIA, 850BRDPCB4GL, Shipsameday109B5

Kurt J Lesker Metal Wool Foreline Trap, TWR4XS200QF