1336-B025-AA-EN-GM1
PLC控制系統(tǒng)故障的宏觀診斷
故障的宏觀診斷就是根據(jù)經(jīng)驗(yàn)，參照發(fā)生故障的環(huán)境和現(xiàn)象來確定故障的部位和原因。PLC控制系統(tǒng)的故障宏觀診斷方法如下：
■是否為使用不當(dāng)引起的故障，如屬于這類故障，則根據(jù)使用情況可初步判斷出故障類型、發(fā)生部位。常見的使用不當(dāng)包括供電電源故障、端子接線故障、模板安裝故障、現(xiàn)場操作故障等。
1336-B025-AA-EN-GM1
■如果不是使用故障，則可能是偶然性故障或系統(tǒng)運(yùn)行時(shí)間較長所引發(fā)的故障。對(duì)于這類故障可按PLC的故障分布，依次檢查、判斷故障。首先檢查與實(shí)際過程相連的傳感器、檢測開關(guān)、執(zhí)行機(jī)構(gòu)和負(fù)載是否有故障：然后檢查PLC的I/O模板是否有故障：最后檢查PLC的CPU是否有故障。
1336-B025-AA-EN-GM1
■在檢查PLC本身故障時(shí)，可參考PLC的CPU模板和電源模板上的指示燈。
■采取上述步驟還檢查不出故障部位和原因，則可能是系統(tǒng)設(shè)計(jì)錯(cuò)誤，此時(shí)要重新檢查系統(tǒng)設(shè)計(jì)，包括硬件設(shè)計(jì)和軟件設(shè)計(jì)。
======倉庫現(xiàn)貨======
1756-CNB/D 4
1756-IB16/A 2
P0911PV 3
1784-PCC 1
1756-L55M22/A 1
TRICONEX 8312 2
1756-DNB/A 3
140NOM21100 3
IC693BEM331 2
MVI56-PDPS 1
140NOE77101 2
1761-NET-DNI 1
1769-OB16P 4
1757-SRM 1
1756-CNBR/D 1
1203-GU6 1
1756-L61 1
IMASI23 1
140XTS00200 7
1756-TBNH 13
1756-IF16/A 1
1756-HSC/B 2
1606-XLS480E 1
1756-IB32/B 7
1756-OB32/A 4
1756-L62/B 1
1794-ACN15 1
DNBT P0971WV-OF 4
DNBT P0971WV-OG 1
140CPS11420 3
1756-TBCH 5
1756-TBSH 2
1756-CFM/A 8
1756-OW16I/A 3
1756-PB75/B 1
1756-PA75 1
1756-A17 1
1756-L55M12 1
1756-IF8 2
1756-OF8 2
1746-NI8 3
1747-L552/B 1
SST-PB3-CLX 1
SST-PB3-PCU 2
1756SC-IF8U 1
1756-ENBT 1
IC697MDL653H 1
IC697CPU780H 1
IC697PWR710M 2
IC697MDL740F 1
IC697BEM713
IC697BEM731 1
TRICONEX 3511 1
TRICONEX 3700A 1
TRICONEX 3503E 1
TRICONEX 3604E 1
TRICONEX 3805E 1
TRICONEX 4351B 1
TRICONEX 3008 1
TRICONEX 3806E 1
TRICONEX 9674-810
TRICONEX 9563-810
TRICONEX 9853-610
TRICONEX 9753-110
TRICONEX 9771-210
TRICONEX 9662-610
MVI56-PDPMV1 1
PTQ-PDPMV1 1
1756-DHRIO 2
1746-OB32 1
1746-NIO4V 1
1746-NI4 1
1746-IV32
1746-OV32 1
1747-L532 1
1756-OF6VI 1
1756-IV32
1756-IF6I 3
1756-IF4FXOF2F 1
1756-L63/B 1
1769-L32C 1
1747-ASB 2
1747-L553 1
1747-L542 1
1756-OF4 1
1794-ASB 6
1756-EN2T 2
======倉庫現(xiàn)貨======
Digital Equipment (DEC) M8959 Micro Controller Board
STANDARD MEMORIES MM-147 102500-880 1216988 MEM BOARD
ZIATECH ZT8806 REV F.4 PCB-8806-F BOARD
INTERCONNECT DEVICES IDI SJ-0-B-3.7-DG-S QTY 1000
HP 69332A 1636A-01805 69332-60021 OUPUT BOARD TESTED
HP 88809F REV D 03253-66511 120384 PCB BOARD
Edwards model: 503 Vacuum Pressure Controller, TORR
Allen Bradley Model: 1794-ADN Flex I/O Adapter, 24VDC
Kulicke & Soffa Model: 01471-4015-000-?07 256K RAM BD.
Kulicke & Soffa Digital Servo Y-Axis Board, P/N Unknow
Magnetek / Triad: 22246100, Cat. No. D066 Variable Mtr
DPS 21300 C ISS. 2 21435 REV A 111293-1 BOARD
Kulicke & Soffa Model: 01471-4015-000-?06 256K RAM BD.
Kulicke & Soffa Model: 01482-4010-000 Memory BD. Rev.K
Kulicke & Soffa Model: 01482-4027-000 Board, Rev.E
ELPAC MODEL: WRI-4212 WRI4212 POWER SUPPLY INFICON DC 4
DATA TECHNOLGY CORPORATION DTC GHB11A 400026-97
Kulicke & Soffa Model: 0835-4501-000-5?2 Board
UNIT UFC-1050 10 SLM N2 MFC MASS FLOW CONTROLLER
INTERDYNE IB4100 IB 4100 IB-4100 86000063 PCB BOARD
Pneutronics Model: 990-4358-001 Pressure Control Unit
ANORAD 2452-02 REV D HIGH POWER MOTOR DRIVER PCB
EZL ENTWICKLUNGSZEN?TRUM INDUSTIEELEKTRO?NIK P9111 PCB
Kay Model: 431C Attenuator, Model: 20-0
Haskel Model: 27741-4 Relief Valve. Adustable Range: 1
Inficon / Leybold-Heraeus?: IPC-2 Presssure Converter
Teknor Microsystems TEK225 Low Level Signal Conditioner
NUPRO SWAGELOK VALVE SS-4UW C14C =
