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TSXFPCP100,

TSXFPCP100

作為火電廠安全經濟運行主導因素的熱控自動化設備DCS系統，近年來得到了普遍應用，為火電廠機組安全、穩定的運行起到了積極的作用。但是，DCS系統的安全性和可靠性還有待提高，在運行過程中經常會出現這樣或那樣的故障，這些故障的出現，導致了發電機組的非計劃停運，給發電企業造成不應有的損失。
　　1、DCS系統常見的故障
　　隨著工業生產自動化的不斷興起、過程控制要求的日益復雜，一種綜合控制系統――DCS系統應用而生了。由于目前各火電廠對DCS系統的應用水平的限制，系統在運行過程中難免會出現故障。常見的DCS系統故障有：電源系統故障、硬件(模件)故障、系統軟件故障和通信網絡系統故障。
　　1.1電源系統故障
　　電源故障是DCS系統的致命故障，一旦電源出現故障，不僅整個系統會停止運行，而且還會導致機組的跳閘，造成非計劃停運。
　　1.1.1電源系統出現故障的主要原因
　　電源方面的問題比較多，一是備用電源不能自投，雖采用UPS和APS雙路互為備用的供電方式，但在轉換時也會出現瞬間失電，導致機組跳閘;二是保險配置不合理及DPU電源內部故障等造成電源中斷，導致系統運行的停止;三是穩壓電源波動引起保護誤動及接插頭接觸不良導致穩壓電源無輸出;四是有的系統整個機柜通過一路保險供所有輸入信號或一路電源外接負載很大，導致模件的損壞;五是系統電源未采用UPS供電，冗余備用就更無從談起。
　　1.1.2電源系統故障應采取的防范措施
　　要保證DCS系統的安全、穩定，首先要具備合理的電源布置，其次要選用高質量的電源模塊，并要保證較高的冗余率。再次是注意觀察電源的輸出電壓，防止出現波動。第四是對電源實行壽命管理，該更換的時候必須更換，絕對不允許等到電源出現了故障的時候才更換。
　　1.2硬件(模件)故障
　　DCS系統的硬件(模件)卡件可分為處理器模件、I/O模件及通訊模件三大部分，這三大模件的功能各自不同，常見的故障部位為過程通道和人機接口。
　　1.2.1硬件(模件)出現故障的主要原因
　　①過程通道故障也就是I/O卡件故障。引起I/O卡件發生故障的第一方面的原因是卡件因長時間工作而出現老化和損壞，這種工作的發生，一般是隱藏性的，只有參數出現異常，系統才會報警;第二個方面是連接線松動導致部分I/O模件與主機的通信中斷，在這種情況下，系統會馬上做出反應，出現報警;第三個方面是外界強電信號竄入形成干擾而導致通道故障的發生。
　　②諸如球標和控制操作出現失靈和實效以及操作員站出現死機、鍵盤和打印機出現工作不正常的現象都屬于人機接口故障。
　　球標操作失靈的原因有裝置因長時間工作發生老化或者被浮塵或油膩污染，致使觸點不能實現自行通斷，也或是電纜插頭接觸不良造成與主機的通信斷路。
　　控制操作實效的主要原因是因球標的操作信號不能改變過程通道的狀態，有三種可能：其一可能是過程通道硬件發生故障;其二可能是操作員站所用軟件的缺陷;其三是設備超負荷或者過多地打開窗口，導致不響應。
　　操作員站死機的原因基本與控制操作失效的原因相同。
　　鍵盤工作不正常的原因有：鍵盤組態出現錯誤、接觸不良、連接電纜松動或者在啟動主機時誤動了鍵盤，造成啟動缺失。
　　打印機出現工作不正常的原因：或者是配置不合理，或者是因對打印機實施屏蔽而造成的。

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22A-A8P0N114 PowerFlex 4- 1.5 kW (2 HP) AC Drive

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284-PWRM22A-M10 ArmorConnect 3PH Pwr Media Shld Mtr Cbl

CJ1M-CPU13 CPU單元I/O點數640，20K程序容量，最多一個擴展機架。

1492-RCDA4D25 Residual Current Device 25 A

6ES7195-7HC00-0XA0 安裝一個 80mm 寬的 I/O 模板，熱插拔

變送器 3RS11 42-2GD80

1497-K-M4-0-N Control Circuit Transformer

1606-XLE480EP-D XLE 20 Amp Power Supply

1763-NC01 MicroLogix Cable

188-K3D320-N Miniature Circuit Breaker 32 A

194L-HE4E-175 194L Control and Load Switch Actuator

2090-CPBM7DF-08AA90 MP-Series 90m Power and Brake Cable

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BC647TRT935 "CIMPLICITY HMI Server 35,000 I/O Runtime System with Proficy GlobalCare"

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IC646PPA374 PA-30 with 374 CPU - AC

IC647NAP000 Applicom Communications

IC690ACC900 RS-232 TO RS-485/422 Convertor Unit

IC697VDD125 Discontinued. Replacement is Embedded VME-1182-060000 . Contact GE Embedded for more details.

IC800SSI420RP2 7.2 amp 480 VAC Profibus S2K servo controller for MTR series motors

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20BB052A0AYNANC0 PowerFlex 700 AC Drive 52 A 20 Hp 20B

20DE125A0ENNANANE PowerFlex 700S AC Drive 20D

2198-BARCON-100DC200 Kinetix 5700 100mm DC Bus Bar

2711P-K15C4A9 PanelView Plus Terminal

280-PWRM35D-M15 ArmorConnect 3-PH Power Media trnk cable

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1492-MS6X12 IEC 6 x 12 mm Marker Card

1495-N74 1-1/2 in. Hub

行程開關 3SE53120SJ12

運行版軟件 6AV2107-0DB14-0AA0 SIMATIC WinCC Client for Runtime 專業版 ASIA V14

1585J-M4UBJM-3 RJ45 Ethernet Media

1756-PA72 ControlLogix AC Power Supply

188-K1C250 Miniature Circuit Breaker 25 A

194E-KA32E-P11-PE 194E Load switch

2090-CFBM7DF-CEAF03 Kinetix 3m Flexible Cable

2090-UXNBMP-18S09 MP-Series 9 m Length Brake Cable

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GC647IFESGCLNTCDV GCC iFIX Optn: ESig & ERec iClient Dev

IC200ALG331 Analog output 16 bit voltage/current 4 isolated channels

IC646MBT001 Machine Edition Traditional Development Suite

IC647IFPRRN00075C iFIX Profsnl SCADA 75 I/O Runtime (M1Component Part)

IC660SLD024 Red Safety Label Kit for IC660BBD024 Genius Blocks

IC697CHS750RR Series 90-70, 5 Slot Rack, Rear Mount

IC800CBL064 Replaced by cable IC800CBL067

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IC300TRM016 Spring-clamp style I/O plug, 16-terminal

IC800BPK012 12 Amp Beta Series Amplifier Package

MTR-3T69-G-R-B-M-0RR Servo Motor Metric 24V Brake

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280-MTR22-M4 ArmorConnect Motor Cable

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1492-LTF3 IEC Term Blck 5.1x110.5x63mm Spr Clp

1494G-EF3N-989 NEMA 1494G Enclosed Disconnect

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1585D-M4HBDM-40 Micro D-Code, QD Style Ethernet Media

1756-BA1 ControlLogix FlexLogix Battery

1794-IM16 Flex 16 Point Digital Input Module

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IC752CMO101 Modicon 984 9 pin cable for DataPanel 30/50

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ZA06B-0153-B175#7008 A30/3000 servo motor with brake and 64k serial encoder

20BD8P0A0AYYADD1 PowerFlex 700 AC Drive 8 A 5 Hp 20B

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25-PM2-A011 PowerFlex 520 2.2kW (3Hp) Power Module

TLXCDLFOFS33 Quantum 200 LICENSES LARGE OPC SERVER

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1492-SPM3D160 MCB Supplementary Protector 16 A

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SIMATIC HMI 系列面板 6AV2124-1QC02-0AX0 KP1500 精智 15.4 寸

150-SPPB3UR SMC-50 POWER POLE ASSEMBLY 140A

1738-IB8M8 ArmorPoint 8 Point Input Module

1784-PCD1 DeviceNet Comms Cable for 1784-PCD Card

193-KC10 7.2-10.0 A IEC Bimetallic Overload Relay

20-750-PH2-F9 PF755 FR9,IP00,24 VDC WIRE HARNESS

2090-CSBM1DE-10AF15 Kinetix Cable Single DSL 2090-Series

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IC647TIDC TID:Texas Instrument Direct

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IC756LDV010E-98 DV Draw Development on Intel/Linux RedHat Op Sys, English, Version 9.8

MicroLogix 1000/1761 System 1761-L10BWA 10 I/O MICROLOGIX 1000

PLC-5/1771 System 1771-OWN SELECTABLE CONTACT OUTPUT MODULE 32 POINT

Distributed I/O 1791-N4C2 BLOCK I/O, 120V AC, 6 POINT ANALOG MODULE

Communications 1786-FSB500 200 MICRON BULK CABLE 500 METERS (1640 FT)

Operator Interface 9399-RSVADSGR RSVIEW32 ACTIVE DISPLAY SYS GETTING RESULTS GUIDE

Support 9356-PRO2350R SUPT REINSTATEMENT CONTRACT FOR 9356PRO2350

Support 9324-RL0700NXS SUPT RENEWAL CONTRACT FOR 9324RL0700NXENE

EtherNet/IP Products 9351-AIXRT INTERCHANGE FOR AIX RUNTIME

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IC693PWR321 Power Supply, 120/240 Vac, 125 Vdc, Standard

Silver Series 9323-PI300D A.I SERIES PLC-5/250 OFFLINE/ONLINE PROGRAMMING

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520422000 Quantum 遠程I/O干電纜終結電阻，75 歐

285-BRCF25-M6 ArmorConnect Brake and Motor Cable

E6B2-CWZ6C 5-24VDC,集電極開路輸出30VDC 35mA,3相,1000P/R,2000P/R

1492-SPM2B005 MCB Supplementary Protector 0.5 A

變頻器選件 6SE6 400-1PB00-0AA0 Profibus 通訊模塊

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150-CC25 SMC-3 Accessory

1715-IB16D 1715 16 Point Digital Input Module

1771-IXHR 1771 8 Point Input Module

193-EC4EE E3 Plus 18-90 A Current Relay

198-WT1 ModCenter IEC Wiring Kit

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2094-BL50S Kinetix Line Interface Module

DEMOCD00013 iWorkinstruction DEMO CD

GFK-0772 PCM C Function Library Reference Manual

IC210CBL002 PDA to Durus Controllers Transfer Cable

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QDA-EDT-SITE QuickDesigner Site License

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20BC105A3ANNACC0 PowerFlex 700 AC Drive 20B

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22A-B2P3N104 PowerFlex 4- 0.4 kW (0.5 HP) AC Drive

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284D-FHD2P3Z-10-CR DeviceNet Variable Frequency Drive

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1492-RIFM20F-F24-2 Connection Products

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1764-RPLTB1 MicroLogix Replacement Part

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GC647SJM001 GCScheduler Project Module

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IC646TBLCLT010 Proficy Troubleshooter for Intelligent Historian Standard, Enterprise and Corporate Clients Access 10 Users

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IC690CDR002 InfoLink CD-ROM Documentation, single-user license

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