P0916DB?？怂共_Foxboro

P0916DB福克斯波羅Foxboro

為適應(yīng)工業(yè)環(huán)境使用，與一般控制裝置相比較，PLC機有以下特點：

1. 可靠性高，抗*力強

    工業(yè)生產(chǎn)對控制設(shè)備的可靠性要求：

①平均故障間隔時間長

②故障修復(fù)時間（平均修復(fù)時間）短

任何電子設(shè)備產(chǎn)生的故障，通常為兩種：

     ①偶發(fā)性故障。由于外界惡劣環(huán)境如電磁干擾、超高溫、超低溫、過電壓、欠電壓、振動等引起的故障。這類故障，只要不引起系統(tǒng)部件的損壞，一旦環(huán)境條件恢復(fù)正常，系統(tǒng)也隨之恢復(fù)正常。但對PLC而言，受外界影響后，內(nèi)部存儲的信息可能被破壞。

     ②*性故障。由于元器件不可恢復(fù)的破壞而引起的故障。

如果能限制偶發(fā)性故障的發(fā)生條件，如果能使PLC在惡劣環(huán)境中不受影響或能把影響的后果限制在zui小范圍，使PLC在惡劣條件消失后自動恢復(fù)正常，這樣就能提高平均故障間隔時間；如果能在PLC上增加一些診斷措施和適當(dāng)?shù)谋Ｗo手段，在*性故障出現(xiàn)時，能很快查出故障發(fā)生點，并將故障限制在局部，就能降低PLC的平均修復(fù)時間。為此，各PLC的生產(chǎn)廠商在硬件和軟件方面采取了多種措施，使PLC除了本身具有較強的自診斷能力，能及時給出出錯信息，停止運行等待修復(fù)外，還使PLC具有了很強的抗*力。

廈門莫格電氣自動化有限公司

 ：張 美 霞
      ： 
      
** 
歡迎您的來電

電  話：

傳  真：

地  址: 廈門市思明區(qū)檳榔西里197號第四層B19單元

http://www.mogget。。ｃｎ/

NSK 80" O.A.L. LINEAR BALL SCREW W5016-1987-C5Z 05L5-0005
 
INA LINEAR BEARING PR 14032 GR3, NIB
 
54" O.A.L. PRECISION BALL SCREW M-127
 
THOMSON ROUND LINEAR CASE SHAFT 25MMSOFTX1500MM?, NIB
 
THK CAM FOLLOWER CFH12MA / 350910 A NIB
 
THREAD CRAFT INC T-4073 COMMERCIAL BACKLASH BALL SCREW 50 OAL 2? DIA NIB
 
THOMSON ISO 9000 SUPER PILLOW BLOCK BEARING NIB SPB160PN
 
SAGINAW 31" LENGTH 3" DIAMETER SHAFT BALL SCREW, NO LABEL, SEE PHOTOS
 
LEAD SCREWS INTERNATIONAL 40" O.A.L. PRECISION BALL SCREW M447
 
THK 92" O.A.L. LINEAR MOTION SYSTEM YS 7F27
 
THREAD CRAFT INC T-6235 COMMERCIAL BACKLASH BALL SCREW 58 OAL 51 TRAV 2? DIA NIB
 
STAR 83.5" 28-HOLE LINEAR GUIDE RAIL 48-10-1608, RUST
 
94" O.A.L. PRECISION BALL SCREW C-246
 
DEUTSCHE STAR RUNNER BLOCK / ROLLER RAIL 1853-613-10, SEALED
 
20TH CENTURY MACHINE 120" O.A.L. PRECISION BALL SCREW FS-127920-2000
 
THOMSON A162536 LINEAR BALL BEARING, NNB
 
PRECISION BALL SCREW 74" O.A.L. FS127920-0800-1?268-02H1
 
GEORG FISCHER DOUBLE ACTING ACTUATOR 

LINEAR ROLLER BEARING LMUWF16
 
NUMATICCS, LINEAR ACTUATOR SH10606LB16DS3, K13409
 
PARKER PNEUMATIC ACUATOR VAVLE P5T-J063DHSN050 SEALED
 
THK KS PRECISION BALLSCREW 9D22
 
THK LINEAR GUIDE RAIL NIB SHS35C3SS+840L / UCG00264 101075
 
THK HSR55 LINEAR BLOCK BEARING
 
STAR LINEAR BEARING 067-20
 
THK LINEAR GUIDE BLOCK NIB HSR45CA1SSS(GK) 101815
 
DUFF-NORTON WORM GEAR ACTUATOR LM3704-57L W/ STEARNS BRAKE 1-055-511-04-BQ?F
 
THREAD CRAFT INC T-1161 COMMERCIAL BACKLASH BALL SCREW 40 OAL 37 TRAV 2? DIA NIB
 
40" O.A.L. PRECISION BALL SCREW 89988

PARKER ORIGA SYSTEM PLUS PNEUMATIC DRIVE CYLINDER P5P00000C500-03?353 102624
 
DR. JOHANNES HEIDENHAIN 1840MM LINEAR ENCODER 216 750 HL
 
BELOIT CORP. SCREW JACK 274815D051
 
LINMOT LINEAR GUIDE PS01-48X240 / 0150-1975 *PLUG*
 
NIPPON THOMPSON IKO LINEAR BEARING, LRW50 E71
 
HYTORK-130 ACTUATOR 120PSIG
 
FESTO 12 MM BORE, 270° ANGLE ROTARY ACTUATOR DSM-12-270-P-FW?-CC
 
REXROTH LINEAR SLIDE BEARING R182443110
 
INA LINEAR MOTION BEARING KH1026/P/PP
 
EMCOR 36" O.A.L. PRECISION BALL SCREW E-6428
 
INA LINEAR BEARING KH3050IPIPP
 
EMCOR E-6696 58" PRECISION BALL SCREW
 
EMCOR 42" O.A.L. PRECISION BALL SCREW C-066
 
PARKER ORIGA SYSTEM PNEUMATIC LINEAR DRIVE SYSTEM 102629
 
THK 171&11/16" O.A.L. 55 HOLE LINEAR GUIDE WAY RAIL W/ (2) IKO BEARING BLOCK

    
BELOIT CORP. 15-TON SCREW JACK 274817D023-0-00?4
 
ACCUGLIDE CG35CEAN LINEAR BLOCK BEARING, NIB
 
NB LINEAR BEARING TWA-16UU
 
26" O.A.L. PRECISION BALL SCREW 052243
 
THOMSON ACCUGLIDE RG25NL0260 348660-81 LINEAR RAIL, NNB
 
FESTO DGP LINEAR DRIVE DGP-40-1300PPVA?B-SL010179
 
THREAD CRAFT INC T-8310 COMMERCIAL BACKLASH BALL SCREW 50 OAL 44 TRAV NIB
 
STAR / REXROTH 1807-203-31 236MM LINEAR ROLLER GUIDE RAIL, NNB
 
STAR / REXROTH 1807-203-31 LINEAR ROLLER GUIDE RAIL, NNB
 
THREAD CRAFT 39.55" 1.5 DIAMETER PRECISION BALL SCREW T-4947
 
36.562" O.A.L. PRECISION BALL SCREW 80198 / C-160
 
THOMSON SAGINAW 17.5" PRECISION BALL SCREW A-5409
 
THREAD CRAFT INC T-1284 PRECISION PRELOADED BALL SCREW 41 OAL 38 TRAV NIB
 
BARNES INDUSTRIAL BWO35342 120694 25?" BALLSCREW, NIB
 
PRECISION BALL SCREW 70260 NIB
 
THREAD CRAFT PRECISION BALL SCREW ?-16988
 
BELOIT CORP. SCREW JACK 274822D026
 
42" O.A.L. PRECISION BALL SCREW C-270
 
48" O.A.L. PRECISION BALL SCREW A-60292

STAR / REXROTH 1807-203-31 356MM LINEAR ROLLER GUIDE RAIL, NIB
 
THREAD CRAFT INC T-2569 COMMERCIAL BACKLASH BALL SCREW