1756-OB16I
1756-OB16I
PLC故障診斷要點(diǎn)
1、CPU異常：
CPU異常報(bào)警時(shí)，應(yīng)檢查CPU單元連接于內(nèi)部總線上的所有器件。具體方法是依次更換可能產(chǎn)生故障的單元，找出故障單元，并作相應(yīng)處理。
2、存儲器異常：
存儲器異常報(bào)警時(shí)，如果是程序存儲器的問題，通過重新編程后還會再現(xiàn)故障。這種情況可能是噪聲的干擾引起程序的變化，否則應(yīng)更換存儲器。
3、輸入/輸出單元異常、擴(kuò)展單元異常:
發(fā)生這類報(bào)警時(shí)，應(yīng)首先檢查輸入/輸出單元和擴(kuò)展單元連接器的插入狀態(tài)、電纜連接狀態(tài)，確定故障發(fā)生的某單元之后，再更換單元。
4、不執(zhí)行程序 ： 一般情況下可依照輸入---程序執(zhí)行---輸出的步驟進(jìn)行檢查
(1)輸入檢查是利用輸入LED指示燈識別，或用寫入器構(gòu)成的輸入監(jiān)視器檢查。當(dāng)輸入LED不亮?xí)r，可初步確定是外部輸入系統(tǒng)故障，再配合萬用表檢查。如果輸出電壓不正常，就可確定是輸入單元故障。當(dāng)LED亮而內(nèi)部監(jiān)視器無顯示時(shí)，則可認(rèn)為是輸入單元、CPU單元或擴(kuò)展單元的故障。
(2)程序執(zhí)行檢查是通過寫入器上的監(jiān)視器檢查。當(dāng)梯形圖的接點(diǎn)狀態(tài)與結(jié)果不一致時(shí)，則是程序錯(cuò)誤(例如內(nèi)部繼電器雙重使用等),或是運(yùn)算部分出現(xiàn)故障。
(3)輸出檢查可用輸出LED指示燈識別。當(dāng)運(yùn)算結(jié)果正確而輸出LED指示錯(cuò)誤時(shí)，則可認(rèn)為是CPU單元、1/0接口單元的故障。當(dāng)輸出LED是亮的而無輸出，則可判斷是輸出單元故障，或是外部負(fù)載系統(tǒng)出現(xiàn)了故障。
另外，由于PLC機(jī)型不同，1/0與LED連接方式的不一樣(有的接于1/0單元接口上，有的接于1/0單元上)。所以，根據(jù)LED判斷的故障范圍也有差別。
5、部分程序不執(zhí)行 ： 檢查方法與前項(xiàng)相同
但是，如果計(jì)數(shù)器、步進(jìn)控制器等的輸入時(shí)間過短，則會出現(xiàn)無響應(yīng)故障，這時(shí)應(yīng)該校驗(yàn)輸入時(shí)間是否足夠大，校驗(yàn)可按輸入時(shí)間<輸入單元的最大響應(yīng)時(shí)間+運(yùn)算掃描時(shí)間乘以2的關(guān)系進(jìn)行。
◆ 企業(yè)名稱：廈門泰尼電氣有限公司
◆ 企業(yè)性質(zhì)： 有限責(zé)任公司
◆ 主營業(yè)務(wù)：DCS,PLC
◆ 經(jīng)營模式： 貿(mào)易
◆ 貿(mào)易地區(qū)： 全國
◆ 聯(lián)系人： 小廖女士）
◆ 電話：0592-6539066
◆ 聯(lián)系手機(jī)：13400716209
◆ QQ:1490371370
◆ 傳真：0592-6890859 （備注“01008”收）
◆ E-mail： 1490371370@qq.com
◆ 郵政編碼： 361026
GENERAL ELECTRIC DASKEB310 FLEX-A-POWER BUSWAY, 600 V,
SEVER IT WITH EVERETT 8" ABRASIVE CUT-OFF MACHINE
MARLO 1D20-57-5603T-11.9-H-S INDUSTRIAL STEAM HEATING C
LA MARCHE A70B3-105-24L-C3 BATTERY CHARGER 3 Ph 480/48
DAIHEN CORPORATION CPVMB-180 MICRO BRAZE DC WELDING POW
U.S. ELECTRICAL MOTORS 58433 PREMIUM EFFICIENCY MOTOR
TOL-O-MATIC 2" BORE, 8" STROKE, PNEUMATIC ACTUATOR 0510
LOCTITE 8 BAR, 260V SEMI AUTOMATIC DISPENSE SYSTEM 9702
FANUC ROBOTICS POWER UNIT A14B-0061-B002-02
RELIANCE ELECTRIC DISTRIBUTED CONTROL SYSTEM COMMUNICAT
SMC CLADN100-500-E-XC18 FINE LOCK CYLINDER, 100 MM BORE
MODICON TELEMECANIQUE 1940W AC SERVO MOTOR BPH0953N5AF2
ALLEN BRADLEY POWER SUPPLY & CONTROL BOARD 2700C-S2 SER
FANUC CIRCUIT BOARD PCB A16B-1200-0310/02A
DAYTRONIC 3215 105-135 VAC THERMISTOR CONDITIONER/INDIC
FANUC ROBOTICS CABLE ASSEMBLY WE-5273-210-008
SQUARE D QMB364W SERIES E1 3 POLE 600 VAC PANEL BOARD S
INA METRIC NEEDLE THRUST BEARING ZARN3062-L-TV-A
SMC AM850-N20-T APPROX 2" NPT 150 PSI MIST SEPARATOR, N
FORCE CONTROL MB-056-227-05 POSI-STOP BREAK, NIB
ALLEN BRADLEY 135893 PRECHARGE SCR BOARD, NIB
DINGS DYNAMIC 230/460V, 80A, 50Hz, 15 TORQUE BRAKE ASSE
ALLEN BRADLEY 45PVA-1LEB2-F4 SERIES A 12-24 VDC TRANSMI
CLECO GARNER DENVER 75PTHL35Q ?" HEX DRIVE PISTOL GRIP
CLECO GARNER DENVER 75PTHLC35Q ?" HEX DRIVE PISTOL GRIP
CLECO GARNER DENVER 75PTHLC354 ?" PISTOL GRIP SHUT OFF
FANUC ROBOTICS LCB BOARD A16B-2202-0560/03A *NO DAUGHTE
EMERSON POSITIONING SERVO DRIVE FX-6120 960122-01
PHD INC. 15340-1-3031 150 PSI ANGULAR PNEUMATIC GRIPPER
ALLEN BRADLEY 1785KA3 SERIES A COMMUNICATION ADAPTER MO
RELIANCE ELECTRIC 155273 SERVO MOTOR
FANUC ROBOTICS DCR/DBR UNIT A05B-2302-C080 *NEW IN BOX*
ABB ROBOTICS RECTIFIER UNIT DSQC 249B 3HAA3563-AHA/2 *N
ALLEN BRADLEY 10HP VARIABLE FREQUENCY AC DRIVE 1336S-BR
TELEMECANIQUE ALTISTART 3 SOFT STARTER MOTOR CONTROLLER
FANUC ROBOTICS POWER MATE MODEL D SERVO AMPLIFIER A02B-
INDRAMAT OPERATOR INTERFACE PANEL BGR BTM15.2-NB
ALLEN BRADLEY SMC-2 54A SMART MOTOR CONTROLLER 150-A54N
NUMATICS ISO SERIES MANIFOLD ASSEMBLY W/ VALVES, ISO559
SIEMENS CIRCUIT BOARD 6SC6120-0FE00 462 012.9054.00
BOSCH 4600PSI, HYDRAULIC DIRECTIONAL VALVE 9810232143 *
IRD MECHANALYSIS MACHINE MONITOR 5806
YASKAWA 750W AC SERVO MOTOR SGM-08U3B4CL
RELIANCE ELECTRIC 10P MALE ENCODER 607980-71F H23102400
SIEMENS SINUMERIK CONTROL BOARD 6FX1121-4BA03
SQUARE D SY/MAX CLASS 8030 ANALOG OUTPUT MODULE RDM-121
TIMKEN TAPERED ROLLER BEARING 717560-B 20024 *NEW IN BO
MITSUBISHI ELECTRIC MELSEC-Q PULSE I/F UNIT Q173PX
S. HIMMELSTEIN & COMPANY DUAL LEAK TESTER AMPLIFIER MOD
SQUARE D 800A SERIES 2 CIRCUIT BREAKER MHP36800MTV6175
MAXON 3/4" 125 PSIG SHUT-OFF VALVE, 5000-0
FANUC ROBOTICS IC FILE (ECC) BOARD PCB A16B-2203-0240/0
INDRAMAT SERVO AMPLIFIER MODULE DSC 1.7-50
ABB ROBOTICS DSQC 228 SAFETY BOARD PCB YB560103-BL *NEW
SIEMENS 480/275V, 67A, 3-PHASE LINE FILTER 6SL 3000-0BE
ABB ASEA BROWN BOVERI REMOTE I/O MODULE DSQT-239
ALLEN BRADLEY OPERATOR INTERFACE INDUSTRIAL COMPUTER 61
FANUC ROBOTICS MD1/CRT UNIT OPERATOR INTERFACE A02B-005
MOOG BRUSHLESS TECHNOLOGY DIGITAL MOTOR CONTROLLER SERV
TOSHIBA HOUSTON 5HP TOSVERT-130G1 TRANSISTOR INVERTER A
GETTYS PERMANENT MAGNET SERVO MOTOR M305D-B00-1B2
ALLEN BRADLEY PanelView 1200 TERMINAL INTERFACE 2711-TC
WTC DEVICENET INTERFACE AC WELD TIMER GA03-T13A
FANUC CRT OPERATOR INTERFACE UNIT A02B-0098-C045/TBR
KOLLMORGEN DC MOTOR TT-4203-4015-A
AEG MODICON GETTYS AC SERVO MOTOR 121-088-0V5 / M463-KA
ALLEN BRADLEY REMOTE I/O MODULE 8520-RIOM 156754 REV. 0
MILLER ELECTRIC 042871 100 VOLTS 650 AMPS POLARITY REVE
ALLEN BRADLEY PanelView 900 OPERATOR INTERFACE 2711-T9C
ALLEN BRADLEY PanelView 900 OPERATOR INTERFACE 2711-T9C
ALLEN BRADLEY PanelView 900 OPERATOR INTERFACE 2711-T9C
ALLEN BRADLEY PanelView 900 OPERATOR INTERFACE 2711-T9C
ALLEN BRADLEY PanelView 900 OPERATOR INTERFACE 2711-T9C
ALLEN BRADLEY PanelView 900 OPERATOR INTERFACE 2711-T9C
ALLEN BRADLEY PanelView 900 OPERATOR INTERFACE 2711-T9C
INDRAMAT SERVO DRIVE CONTROLLER DSC 1.7-50-115V
FANUC ROBOTICS MAIN CPU CIRCUIT BOARD PCB A16B-1000-020
GE FANUC WHEDCO DSP MOTION SERVO DRIVE SMJ-31GE-2-D
XYCOM OPERATOR INTERFACE PANEL 5012 KPM
LAFERT 7.5HP 5.5kW HIGH EFFICIENCY MOTOR HE 132S D4
FANUC ROBOTICS CRT/MDI OPERATOR INTERFACE UNIT A02B-009
FESTO STEPPER MOTOR MTR-ST57-48S-AA
FANUC ROBOTICS SERVO AMPLIFIER UNIT A06B-6066-H011
FANUC ROBOTICS ETHERNET REMOTE PCB ER1T A16B-2203-0291/
REXROTH INDRAMAT PERMANENT MAGNET SERVO MOTOR MKD025B-1
ALLLEN BRADLEY PanelView 1400e OPERATOR INTERFACE 2711E
MITSUBISHI 5HP FREQROL-A200 VARIABLE FREQUENCY AC DRIVE
FANUC I/O CARD 48IN/3 CIRCUIT BOARD PCB A16B-2201-0071
SIEMENS 2KVA/9.7KVA SIDAC-T INDUSTRIAL CONTROL TRANSFOR
SCHNEIDER TSX QUANTUM INTERBUS S MASTER MODULE 140 NOA
MICROMATIC TEXTRON MOTION CONTROLLER MMC-93C-M2-24
SIEMENS 400/460/490V 15KW/17.3KW 1460/1755RPM 3-PHASE A
ALLEN BRADLEY VARIABLE FREQUENCY AC DRIVE 1336S-BRF30-A
ATLAS COPCO TENSOR S4/S7 TORQUE CONTROLLER PF3007-G-HW
ATLAS COPCO TENSOR S4/S7 TORQUE CONTROLLER PF3007-G-DN-
SCHNEIDER TC2000 INDUSTRIAL PC OPERATOR INTERFACE 3515
MOOG BRUSHLESS SERVO MOTOR 304-240 WITH COOPER BUCKEYE
EATON IDT PanelMate POWER SERIES OPERATOR INTERFACE 92
MODICON POWER SUPPLY REMOTE I/O PROCESSOR AS-P451-681
ALLEN BRADLEY 9/SERIES COLOR OPERATOR PANEL 8520-VOP1 R
FANUC ROBOTICS BALANCER A290-7302-V306
ALLEN BRADLEY DENSO AC SERVO MOTOR 8500-A2D-K1B
TELEMECANIQUE ALTISTART 3 SOFT STARTER ATS23 D72N
FANUC ROBOTICS 5.5KW AC SERVO MOTOR A06B-0893-B190#3000
RELIANCE ELECTRIC ELECTRO-CRAFT AC SERVO MOTOR 1326AB-B
ALLEN BRADLEY 1326 AC SERVO MOTOR 1326AS-B840C-21 *PAIN
INDRAMAT CLT INDUSTRIAL COMPUTER OPERATOR INTERFACE CLT
ELAU AG AC SERVO MOTOR SM140-30-120-P0-45-S1-B1
GE FANUC ROBOTICS AC SERVO MOTOR A06B-0317-B205 *NO LAB
GENERAL ELELCTRIC AC SERVO MOTOR 183-18-0350-0 W/ BEI E
YASKAWA 3.2KW AC SERVO MOTOR USADED-32YRW11
INDRAMAT CLT OPERATOR INTERFACE CLT01.1C-PA-NA-SLB-FW /
CUTLER-HAMMER OPERATOR INTERFACE 39PKHX PM 3000 POWER S
YASKAWA ELECTRIC SERVOPACK SERVO CONTROLLER CACR-TS111Z
ALLEN BRADLEY OPERATOR INTERFACE CAT. 6157-BEZAAZAZZZ S
ALLEN BRADLEY SMC PLUS 24A SMART MOTOR CONTROLLER 150-A
FANUC ROBOTICS AXIS CONTROL BOARD PCB A16B-1212-0090/03
HYDRONIC 100PSI, 2002PSI, 1/2"NPT, 2-PORT HYDRAULIC/PNE
PARKER PNEUMATIC 24VDC, 0-150PSI, 32o/140oF AUTOMATIC B
BELDEN 8489 060 1000FT 18 AWG CONDUCTOR UNSHIELDED CONT
EATON CUTLER-HAMMER PanelMate OPERATOR INTERFACE 92-008
CUTLER HAMMER PANELMATE POWER SERIES 45PK PM 4000 / 217
