IS200SCNVG1ADC

GE  IS200SCNVG1ADC
 

 分析与维修:根据稳压电源工作原理可知，只有当电源的高压保护电路和市电稳压电路有故障时，才会出现上述现象。电源输出电压经T2取样、整流、滤波后，加至电压比较器U7的⑧、⑨脚，然后接参考电压端。只有当比较器U7的⑧脚电压高于⑨脚电压时，脚④才会跳变成低电平输出，从而控制保护电压动作。以下分两步逐一进行检测:

    一、市电稳压的检测

    从实物中可知，市电电压的高低取决于继电器S3～S8的吸合状态。先用万用表逐一检测，发现继电器S3的线圈已烧断，故S3不吸合，使得220V市电电压完全加在T3的第3、4根抽头间，从而导致输出电压偏高。更换T3，开机运行，故障排除。在实际工作中，考虑到该稳压电源直接接在交流稳压器上使用，又无同规格的继电器可代换，将S3中的第①、③短接即可。

    二、高压保护电路的检测

    首先用万用表测得电压比较器U7的⑧脚电压为2.35v、⑨脚电压为2.25v，此时高压保护电路不起动。逐一仔细查看高压保护电路的每一元器件，均无故障。适当调整电位器RP8，当下调至某一数值(减少)时，高压保护电路突然正常起动。由此可知，电源高压保护电路的电压偏高，须重新调整。将电源的输入端接在交流调压器上，输出端接在电压表上。然后将调压器的电压值慢慢地从175v升至250v，并记录下此过程中输出电压最大值是230v。当输出电压是235v时，沿逆时针方向缓慢调整电位器RP8，直至高压保护电路刚一启动即可。注意，当高压保护电路出现故障，输出电压为220v±5%时，是无法仅凭肉眼观察到的。因此在使用时要定期检查高压保护电路是否正常。

    故障现象二:停电时，逆变不工作

    根据故障现象分析得知，该故障是因蓄电池电压太低引起。打开机盖，将其取出充电，故障排除。用一段时间后故障依旧，故怀疑充电回路有故障。用万用表电压档检测充电回路中的三端可调稳压块LM317，其输入电压正常，但输出端电压仅为14.3v，重新调整均无反应。故判断LM317损坏。更换之，重新启动，拆掉蓄电池，将充电电压调至27v时，故障随即排除。

    故障现象三:当市电中断时，逆变器不工作，红色指示灯长亮

    分析与维修:根据故障现象可知，该故障是因电池电压太低引起。打开机盖，测得电池两端电压只有16.8v，加上市电后，电池两端电压不变，说明故障发生在充电电路上。该充电电路工作原理是:当市电正常工作时，主变压器T3输出25V的交流电压，经S2继电器的第①、②脚接点输出电压，经B1桥堆整流、C21、C22滤波后输出34v的直流电压。将其送至可调稳压器U8(MG317T)稳压后，对蓄电池充电。用万用表测得C21两端直流电压正常，说明故障发生在滤波电路之后。当测量MG317T输出脚时，发现输出电压只有110v，查输出负载均正常，调整VR3输出电压不变化，此时说明U8已损坏。用同型号的MG317T更换U8，断开电池，调整VR3，使得U8输出电压稳定在28v左右。开机试运行，故障排除。

    故障现象四:当市电中断时，逆变器不工作，蜂鸣器长鸣

    根据故障现象，蜂鸣器鸣，说明该稳压电源的转换控制电路正常，逆变器不逆变是因保护电路动作所致。用万用表检测电池电压正常，说明故障出在逆变回路电路。该机逆变回路由脉宽调制器U1(SG3524)、取样变压器T2、推动管Q5与Q6、逆变器Q17与Q18等组成。首先测量脉宽调制器U1(SG3524)的⑩脚，看是否被锁定(锁定时为高电平)，接着测量逆变管Q17、Q18静态工作时对地的阻值。正常时依数据可知:当黑笔接地时，Q17、Q18的e、b、c对地阻值分别为3.2kΩ、3.8kΩ、0kΩ;当红笔接地时，此阻值分别为5.6kΩ、6.5kΩ、0Ω。用万用表测量Q17、Q18的e、b、c对地阻值均只100Ω。此时发现逆变管Q17与Q18、推动管Q5与Q6均已烧坏。更换之，故障排除。

    故障现象五:市电供电正常时，工作正常;当切断市电时，无220v电压输出且伴有长鸣报警声

    分析与维修:根据故障现象，仔细检查蓄电池电压为26v，正常;两只逆变器大功率输出管和相应的驱动器也正常。估计为蓄电池电压检测电路有问题。正常情况下，第⑥脚电压为参考电压，维持在1.2v左右;当蓄电池为正常值26v时，计算可知:⑦脚电压约为1.4v，因此①脚电压为12v高电平。现将UPS置于无市电工作状态下，测量IC1的脚①、⑥、⑦，其电压值分别为0v、1.2v、0v，据此可知第⑦脚电压偏低。由此推断R3、R4分压有问题。分别测量R3、R4的阻值，发现R3已经断路，更换之，故障排除。

    故障现象六:市电供电正常时，开机，逆变器工作指示灯闪烁，蜂鸣器间断鸣叫

    分析与维修:我们知道，不间断电源是由市电供电还是逆变器供电，取决于IC5的两个与非门组件组成的RS触发器。在市电供电时，RS触发器VH=“1”，VG=“0”，复位端R(VF)为高电平，置位端S(VN)为正向脉冲信号VN，测得VH为低电平，VG为高电平，再测量复位端R(VF)为低电平，均错;置位端S(VN)为一串正向脉冲，正确;IC3第⑧脚为高电平，正确。测市电检测电压V1为0v，即没有市电检测电压，测变压器T2的副边绕组已断路。更换变压器T2，工作正常。

    故障现象七:市电工作时，电源变压器噪声大

    分析与维修:根据故障现象可知，当变压器的负载过重，或工作状态处于不平衡、不稳定时，就有可能发出异常的噪音。而我们知道，当与变压器相连的电路中有元器件损坏，或者有些连线接触不良，就有可能使负载过重。检查变压器的次级并未发现碰线短路、匝间短路、元器件损坏故障。用酒精棉球轻轻擦洗干净，再将各连接插头、插座拔掉，重新插好后，变压器的噪声消失，ups电源工作正常。推测故障原因可能是电路板灰尘太多，某个连接插头不良引起变压器负载过重所致。故障现象八:市电正常时，刚一开机起动时，交流保险丝熔断，UPS转向逆变器供电

    分析与维修:交流保险丝熔断，说明市电供电主回路电流过大，应重点检查输出回路中有无短路现象。经过仔细测试，未发现有短路点。在打开UPS的瞬间测量IC8输出端⒁，有调制脉冲输出，这是不正常的，可能在市电正常的情况下，逆变器也工作，二者同时使用一个电源变压器，使主回路中的电流过大，引起保险丝熔断所致。测量市电供电—逆变器供电电路的转换控制电路，发现IC5已损坏。更换IC5芯片，故障排除

C

FBM010 Fieldbus Module 1 (FBM01)

FBM020 Fieldbus Module 2 (FBM02)

FBM03 Fieldbus Module 3 (FBM03)

FBM040 Fieldbus Module 4 (FBM04)

FBM060 Fieldbus Module 6 (FBM06)

FBM07 """Main"" Fieldbus Module 7 (FBM07)"

FBM080 """Main"" Fieldbus Module 8 (FBM08)"

FBM09 """Main"" Fieldbus Module 9 (FBM09)"

FBM100 """Main"" Fieldbus Module 10 (FBM10)"

FBM110 """Main"" Fieldbus Module 11 (FBM11)"

FBM12 """Expander"" Fieldbus Module 12 (FBM12)"

FBM130 """Expander"" Fieldbus Module 13 (FBM13)"

FBM14 """Expander"" Fieldbus Module 14 (FBM14)"

FBM150 """Expander"" Fieldbus Module 15 (FBM15)"

FBM160 """Expander"" Fieldbus Module 16 (FBM16)"

FBM17 Fieldbus Module 17 (FBM17)

FBM180 Fieldbus Module 18 (FBM18)

FBM200 """Main"" Fieldbus Module 20 (FBM20)"

FBM210 """Expander"" Fieldbus Module 21 (FBM21)"

FBM22 Fieldbus Module 22 (FBM22)

FBM24 """Main"" Fieldbus Module 24 (FBM24)"

FBM25 """Expander"" Fieldbus Module 25 (FBM25)"

FBM26 """Main"" Fieldbus Module 26 (FBM26)"

FBM27 """Expander"" Fieldbus Module 27 (FBM27)"

FBMYA Y-Adapter

G06 800 x 300 x 1200 Field Enclosure Front Access

G10 800 x 800 x 2000 System Enclosure F/R Access

G11 800 x 800 x 2000 Termination Enclosure F/R Access

G12 800 x 800 x 2000 Sys & Term Enclosure F/R Access

G15 800 x 800 x 2000 System  Enclosure Front Access

G16 800 x 800 x 2000 Term Enclosure Front Access

G17 800 x 800 x 2000 Sys & Term Enclosure Front Access

G20 800 x 600 x 2000 System Enclosure F/R Access

G21 800 x 600 x 2000 Termination Enclosure F/R Access

G22 800 x 600 x 2000 Sys & Term Enclosure F/R Access

G40 800 x 800 x 2000 Utility Enclosure F/R access

G45 800 x 800 x 2000 Utility Enclosure Front access

HFPWS01 I/A Series Hardened Flat-Panel WS (RESALE)

HFPWS1 I/A Series Hardened Flat-Panel WS (RESALE)

J0173BA Applications Processor 10 (AP10) OPSYS Lic

J0173BB Applications Processor 20 (AP20) OPSYS Lic

J0173BC Workstation Processor 10 (WP10) SW Lic

J0173BD Workstation Processor 20 (WP20) SW Lic

J0173BE Control Processor 10 SW Lic

J0173BF Communication Processor 10 SW Lic

J0173BG SPECTRUM Slave Gateway SW Lic

J0173BH Carrierband LAN Interface SW Lic

J0173BJ PW-FB Opsys SW Lic

J0173BK PW Opsys SW Lic

J0173BM System Monitor SW Lic

J0173BN Sys Mgr Display Handler SW Lic

J0173BP Integrated Control Configurator SW Lic

J0173BQ Diagnostic Images SW Lic

J0173BR INFORMIX ISQL SW Lic

J0173BS INFORMIX ESQL/C SW Lic

J0173BT Physical Properties Library SW Lic

J0173BU PRELUDE Spreadsheet SW Lic

J0173BV Math Library SW Lic

J0173BW Historian 10 SW Lic

J0173BX System Configurator SW Lic

J0173BY Process Optimizer SW Lic

J0173BZ Performance Calculation SW Lic

J0173CA Production Model SW Lic

J0173CB Data Validator SW Lic

J0173CC Batch Plant Management SW Lic

J0173CD Automated Data Capture SW Lic

J0173CE Historian SW Lic

J0173CF Statistical Process Control SW Lic

J0173CG Allen-Bradley Data Highway SW Lic

J0173CJ SPECTRUM Master Gateway SW Lic

J0173CK Command Center Gateway SW Lic

J0173CL 760/761 Gateway SW Lic

J0173CM VAX Nodebus Gateway SW Lic

J0173CN Information Network Interface 10 SW Lic

J0173CP Panel Display Processor 10 SW Lic

J0173CQ Modicon Gateway SW Lic

J0173CR Compound Summary Access SW Lic

J0173CS Production Model Editor SW Lic

J0173CT Device Monitor SW Lic

J0173CU FoxCAD SW Lic

J0173CV Expert System Run-Time SW Lic

J0173CW HTG OPSYS SW Lic

J0173DA Application Workstation 51 SW Lic

J0173DB Application Processor 51 SW Lic

J0173DC Workstation Processor 51 SW Lic

J0173DD Compound Summary Access (51 Series) SW Lic

J0173DE Disk Mirroring/Concatenation (51 Series) SW Lic.

J0173DF Device Monitor (51 Series) SW Lic

J0173DG Sun DECnet (51 Series) SW Lic

J0173DH Display Utilities (51 Series) SW Lic

J0173DJ System Configurator (51 Series) SW Lic

J0173DK Sun FORTRAN (51 Series) SW Lic

J0173DL Historian 500 (51 Series) SW Lic

J0173DM Historian 1000 (51 Series) SW Lic

J0173DN Historian 1500 (51 Series) SW Lic

J0173DP Historian 2000 (51 Series) SW Lic

J0173DQ Historian 4000 (51 Series) SW Lic

J0173DS Int Ctl Configurator (51 Series) SW Lic

J0173DT INFORMIX Dev Env (51 Series) SW Lic

J0173DU C Math Library Solaris Media & SW Lic

J0173DV Operator Message Interface SW Lic For Solaris

J0173DW Phys Properties Library SW Lic For Solaris

J0173DX Report Writer (51 Series) SW Lic

J0173DY SMDH For AP (51 Series) SW Lic

J0173DZ System Monitor (51 Series) SW Lic

J0173EA FORTRAN Math Library (51) SW Lic

J0173EB Statistical Process Control (51 Series) SW Lic

J0173EC Spreadsheet (51 Series) SW Lic

J0173ED C Compiler (51 Series) SW Lic

J0173EE X Term Hosting (51 Series) SW License  

J0173EF SMDH For WP/AW (51 Series) SW Lic

J0173EG Allen-Bradley Station SW Lic

J0173EH Additional DM/FoxView (51 Series) SW Lic

J0173EJ Analyzer Management SW (AMS) Server Lic

J0173EK Analyzer Management SW (Ams) Console Lic

J0173EM FoxAnalyst Media & SW Lic For Windows NT

J0173EU CP40 SW Lic (2,000 Block)

J0173EV MODBUS Plus Integrator SW Lic

J0173EZ Alarm And Message Interface SW Lic

J0173FA Application Processor 10 (AP10) OPSYS Pkg

J0173FB Applications Processor 20 (AP20) OPSYS Pkg

J0173FC Workstation Processor 10 (WP10) SW Pkg

J0173FD Workstation Processor 20 (WP20) SW Pkg

J0173FE Control Processor 10 (CP10) SW Pkg

J0173FF Communication Processor 10 SW Pkg

J0173FG SPECTRUM Slave Gateway SW Pkg

J0173FH Carrierband LAN Interface SW Pkg

J0173FJ PW-FB Opsys SW Pkg

J0173FK PW Opsys SW Pkg

J0173FL HTG OPSYS SW Pkg

J0173FM System Monitor SW Pkg

J0173FN System Manager Display Handler SW Pkg

J0173FP Integrated Control Configurator SW Pkg

J0173FQ Diagnostic Images SW Pkg

J0173FR INFORMIX ISQL SW Pkg

J0173FS INFORMIX ESQL/C SW Pkg

J0173FT Physical Properties Library SW Pkg

J0173FU PRELUDE Spreadsheet SW Pkg

J0173FV Math Library SW Pkg

J0173FW Historian 10 SW Pkg

J0173FX System Configurator SW Pkg

J0173FY Process Optimizer SW Pkg

J0173FZ Performance Calculation SW Pkg

J0173GA Production Model SW Pkg

J0173GB Data Validator SW Pkg

J0173GC Batch Plant MgmtSW Pkg

J0173GD Automated Data Capture SW Pkg

J0173GE Allen-Bradley Data Highway Gateway SW Pkg

J0173GF Allen-Bradley EPA SW Pkg

J0173GG SPECTRUM Master Gateway SW Pkg

J0173GH Command Center Gateway SW Pkg

J0173GJ 760/761 Gateway SW Pkg

J0173GK VAX Nodebus SW Pkg

J0173GL Statistical Process Control SW Pkg

J0173GM Information Network Interface 10 SW Pkg

J0173GN Panel Display Processor 10 SW Pkg

J0173GP Historian 20 SW Pkg

J0173GQ Modicon Gateway SW Pkg

J0173GR Compound Summary Access SW Pkg

J0173GS Production Model Editor SW Pkg

J0173GT Device Monitor SW Pkg

J0173GU FoxCAD SW Pkg

J0173GV Loadable Doc Pkg

J0173GW Expert System Run-Time SW Pkg

J0173GX Device Integrator 15 SW Lic

J0173GY INT15 SW Pkg (V2.x) - Basic ASCII

J0173GZ AIMAX-PLUS SW Pkg

J0173HA INTERSPEC Integrator SW License

J0173HB Integrator 30 For Allen-Bradley PLC's SW Lic

J0173HC Integrator 30 For Modicon PLC's SW Lic

J0173HD Device Integrator 30 SW Lic

J0173HE Application Workstation 50 SW Lic

J0173HF Historian 500 SW Lic

J0173HG Historian 1000 SW Lic

J0173HH Historian 4000 SW Lic

J0173HJ Statistical Process Control 50 SW Lic

J0173HK System Configuration 50 SW Lic

J0173HL Display Utilities 50 SW Lic

J0173HN Application Processor 51B SW Lic

J0173HP Application Workstation 51B SW Lic

J0173HQ Workstation Processor 51B SW Lic

J0173HR Application Workstation 51C SW Lic

J0173HS INFORMIX Dev. Env. (AW51C) SW Lic

J0173HT FoxAnalyst V1.2 Media & SW Lic For Solaris

J0173HU MICRO-I/A 100 Value Point NonFT SW Lic

J0173HV MICRO-I/A 500 Value Point NonFT SW Lic

J0173HW FoxGuard Manager SW Lic

J0173HX OMC 250 Control Point SW Lic

J0173HZ MICRO-I/A 1000 Value Point NonFT SW Lic

J0173JA AW70 SCADA (L&N) SW Driver Lic

J0173JB AW70 SCADA I/O (BB) SW Driver Lic

J0173JC AW51 SCADA (L&N) SW Driver Lic

J0173JR Historian 8000 (51 Series) SW Lic

J0173NA Instrument Gateway SW Pkg

J0173NB Path MgmtSW Pkg

J0173NC Path Mgmnt SW Lic (Requires Addl Custom Services)

J0173ND PW-NB Opsys SW Pkg

J0173NE PW-NB Opsys SW Lic

J0173NF PW-HTG Opsys SW Pkg

J0173NG PW-HTG Opsys SW Lic

J0173NJ PW Operating System

J0173NK PW-SSI Opsys SW Pkg

J0173NL PW-SSI Opsys SW Lic

J0173NM Operator Message Interface 20 SW Pkg

J0173NN Operator Message Interface 20 SW Lic

J0173NP PW-HTG Spreadsheet SW Lic

J0173NQ PW-SSI Spreadsheet SW Lic

J0173NR Spreadsheet PW

J0173NS PW-NB Modicon Gateway SW Lic

J0173NT PW-NB Allen-Bradley Gateway SW Lic

J0173NU PW-NB Instrument Gateway SW Lic

J0173NV PW-NB HTG SW Lic

J0173NW PW-NB 760 Series Configurator SW Lic

J0173NX PW-SSI 760 Series Configurator SW Lic

J0173NY PW-NB CP10 SW Lic

J0173NZ GCSA PW

J0173PA Instrument Gateway SW Lic

J0173PB PW-C Opsys SW Pkg

J0173PC PW-C Opsys SW Lic

J0173PD PW-FB System Monitor SW Pkg

J0173PE PW-NB System Monitor SW Pkg

J0173PF PW-HTG System Monitor SW Pkg

J0173PH PW-SSI System Monitor SW Pkg

J0173PJ PW-NB Display Processor SW Pkg

J0173PK PW-NB Device Monitor SW Pkg

J0173PL PW-FB System Monitor SW Lic

J0173PM PW-NB System Monitor SW Lic

J0173PN PW-HTG System Monitor SW Lic

J0173PP PW-SSI System Monitor SW Lic

J0173PQ System Monitor PW

J0173PR PW-NB Display Processor SW Lic

J0173PS PW-NB Device Monitor SW Lic

J0173PT Integrated Control Configurator PW

J0173PU PW-C Historian SW Lic

J0173PV PW-C Spreadsheet SW Lic

J0173PW PW-C Historian SW Pkg

J0173PX PW-C PRELUDE Spreadsheet SW Pkg

J0173QA E-Doc System (No Documents) SW Pkg

J0173QB Site Planning E-Doc Pkg

J0173QC Equip Installation (Part A) E-Doc Pkg

J0173QD Equip Installation (Part B) E-Doc Pkg

J0173QE Equip Installation (Part C) E-Doc Pkg

J0173QF Equip Installation (Part D) E-Doc Pkg

J0173QG System Maint E-Doc Pkg

J0173QH HW Description E-Doc Pkg

J0173QJ SySWS Configurator. & Misc Gateway E-Doc Pkg

J0173QK System Concepts/Proc Op Guide E-Doc Pkg

J0173QL Display Builder/Configurator/Graphics E-Doc Pkg

J0173QM Proc Alarm/Int Control Configurator E-Doc Pkg

J0173QN Integrated Control Concepts E-Doc Pkg

J0173QP Integrated Control Blocks (1) E-Doc Pkg

J0173QQ Integrated Control Blocks (2) E-Doc Pkg

J0173QR Using/Writing E-Doc Pkg

J0173QS Math & Physical Prop. Library E-Doc Pkg

J0173QT Historian And Spreadsheet E-Doc Pkg

J0173QU Prod Model/Data Valid/Optimizer E-Doc Pkg

J0173QV INFORMIX ISQL E-Doc Pkg

J0173QW INFORMIX ESQL-C SW Doc Pkg

J0173QX VENIX User Reference E-Doc Pkg

J0173QY VENIX Admin/Programmers Ref E-Doc Pkg

J0173QZ VENIX User Guide SW Doc Pkg

J0173RA VENIX Support Tools/Doc Proc E-Doc Pkg

J0173RB VENIX MicroRFS/Programmers Guide E-Doc Pkg

J0173RC Mod Workstation Installation (1) E-Doc Pkg

J0173RD Mod Workstation Installation (2) E-Doc Pkg

J0173RE SW Plan, Installation And System Msgs E-Doc Pkg

J0173RF Batch Plant MgmtE-Doc Pkg

J0173RG System Oper E-Doc Pkg

J0173RH Site Planning E-Doc Pkg

J0173RJ LAN Site Planning E-Doc Pkg

J0173RK FOXCAD E-Doc Pkg

J0173RL Equip Instr. Part E E-Doc Pkg

J0173RM Integrated Control Blocks Part C E-Doc Pkg

J0173RN System Messages E-Doc Pkg

J0173RP Graphic Utility, Display Configurator, AMG E-Doc Pkg

J0173RQ PSR Config, Sys Concepts, Sys Config E-Doc Pkg

J0173UA PW-FB Historian SW Pkg

J0173UB PW-NB Historian SW Pkg

J0173UC PW-HTG Historian SW Pkg

J0173UD PW-SSI Historian SW Pkg

J0173UF PW-FB PRELUDE Spreadsheet SW Pkg

J0173UG PW-NB PRELUDE Spreadsheet SW Pkg

J0173UH PW-HTG PRELUDE Spreadsheet SW Pkg

J0173UJ PW-SSI PRELUDE Spreadsheet SW Pkg

J0173UL PW-NB CP10 SW Pkg

J0173UM PW-NB Modicon Gateway SW Pkg

J0173UN PW-NB Allen-Bradley Gateway SW Pkg

J0173UP PW-NB Instrument Gateway SW Pkg

J0173UQ PW-NB HTG SW Pkg

J0173UR PW-NB 760 Series Configurator SW Pkg

J0173US PW-SSI 760 Series Configurator SW Pkg

J0173UT PW-FB Historian SW Lic

J0173UU PW-NB Historian SW Lic

J0173UV PW-HTG Historian SW Lic

J0173UW PW-SSI Historian SW Lic

J0173UX Historian PW

J0173UY PW-FB Spreadsheet SW Lic

J0173UZ PW-NB Spreadsheet SW Lic

J0173VA PW-NB Device Gateway SW Pkg (Req Addl Cust Serv)

J0173VB PW-NB INI10 SW Pkg

J0173VC PW-FB System Manager Display Handler SW Pkg

J0173VD PW-FB System Configurator SW Pkg

J0173VE PW-FB Compound Summary Access SW Pkg