描述
在高速并條機的自調(diào)勻整控制中,從棉條被檢測到相應(yīng)的檢測點到達變速點,中間有一個延時過程。該延時過程的精確控制是決定開環(huán)自調(diào)勻整控制效果的一個關(guān)鍵因素。這個延時相比于自調(diào)勻整的控制周期很大,所以該系統(tǒng)是一個典型的純滯后大延時環(huán)節(jié)。該延時與系統(tǒng)速度有關(guān),但是系統(tǒng)的模型未知,所以難以采用史密斯預(yù)估延時法。如果采用傳統(tǒng)的定時查詢法,CPU的大量時間耗費在查詢上,系統(tǒng)運行效率低、精度不高而且自調(diào)勻整所能控制的片斷的長度也降不下來。可以利用硬件在等位移條件下觸發(fā)中斷以實現(xiàn)與速度無關(guān)的精確延時,大大提高CPU效率,并能實現(xiàn)并條機全程自調(diào)勻整控制。
產(chǎn)品廣泛應(yīng)用于:電力、石油、礦井提升、港口、供熱、燃氣、供水、污水處理、冶金、造紙、紡織、化工、水利等現(xiàn)代化工業(yè)領(lǐng)域!
我們這里有您急需的停產(chǎn)備件,
優(yōu)勢現(xiàn)貨,詢不到的,買不到的,請聯(lián)系我們!
絕 對優(yōu)勢,絕 對低價!絕 對正品,優(yōu)質(zhì)的產(chǎn)品,一流的服務(wù),充足的庫存,
歡迎來電詢價,我們將會給您最優(yōu)惠的價格!
主營:世界知名品牌的PLC、DCS系統(tǒng)備件模塊
①Allen-Bradley(美國AB)系列產(chǎn)品》
②Schneider(施耐德電氣)系列產(chǎn)品》
③General electric(通用電氣)系列產(chǎn)品》
④Westinghouse(美國西屋)系列產(chǎn)品》
⑤SIEMENS(西門子系列產(chǎn)品)》
⑥銷售ABB Robots.FANUC Robots、YASKAWA Robots、KUKA Robots、Mitsubishi Robots、OTC Robots、PanasonicRobots、MOTOMAN Robots。
⑦estinghouse(西屋):OVATION系統(tǒng)、WDPF系統(tǒng)、MAX1000系統(tǒng)備件。
⑧Invensys Foxboro(福克斯波羅):I/A Series系統(tǒng),F(xiàn)BM(現(xiàn)場輸入/輸出模塊)
順序控制、梯形邏輯控制、事故追憶處理、數(shù)模轉(zhuǎn)換、輸入/輸出信號處理、數(shù)
據(jù)通信及處理等。Invensys Triconex:冗余容錯控制系統(tǒng)、基于三重模件冗余(TMR)
結(jié)構(gòu)的zui現(xiàn)代化的容錯控制器。
⑨Siemens(西門子):Siemens MOORE,Siemens Simatic C1,Siemens數(shù)控系統(tǒng)等。
⑩Bosch Rexroth(博世力士樂):Indramat,I/O模塊,PLC控制器,驅(qū)動模塊等。
◆Motorola(摩托羅拉):MVME 162、MVME 167、MVME1772、MVME177等系列。
Molex JHTR1719C 0011260007 Hand Crimp Tool
FreeScale Access Point/Wireless Router MPC8377EWLANB
Lot 3 Hand Crimp Tools SUNX SL-JPC SL-JPE SL-JPS
RICOH Z-folding Unit ZF-4000 for MP6000 MP7000 MP8000
RICOH PPC RT39 for MP6000 MP7000 MP8000
RICOH SR842 finisher stapler for MP6000 MP7000 MP8000
RICOH IEEE 1284 Interface Board Type A B679-17
RICOH USB Host Interface Unit TypeA B825-17
RICOH Printer/Scanner Unit Type8000 D406-03
COSMOS Vibration Sensor SAF512R Vibro Monitor CVM-20A-V
Lot 80 CY7C1414SV18-250BZC CY7C1414 Chips $29/each
New GM Fuel PUMP 12626234 by BOSCH
Lot 211 pcs RENESAS M30622MWP-152FP M30622 IC $5/pc
VICKERS Valve DG4V-3S-6C-M-U-H5-60 new spare
VICKERS Pressue Relief Valve DGMC2-3-AB-CW-BA-CW-41
VICKERS PILOT OP. CHECK Valve DGMPC-3-ABK-KBA-41
Lot 58 pcs NAiS JW1AFHN-DC5V Realys New Spare $1/pc
EATON ROLL/YAW TRIM 441-40456-001 SAGEM 251524189-0102
Air Liquide DIVA ARM 4.20 MASTER Rosemount 3051 sensor
TAKIKAWA COUNTING EVENT PRINTER AD-50 NEW Surplus
MSC cPCI Computer Card 1.4GHZ 512MB 105495-50
Ingersoll Rand 150BMP-2451B CONTROL VALVE 24 VDC
NERA F77 Transceiver Unit & Modem Unit Repaired Spare
Toshiba Machine VELCONIC VLPSV-070P3-AB Servo Drive
ASML-HR 4022.430.0530 P-CHUCK DRIVE Board RepairedSpare
EXCEL 1001F Laser Head 1031 Romote Receiver 1040B Power
EXCEL 1032B Precision Signal Processor Card Used Spare
Alcatel-Lucent LSC16G1X module CRTUAAMCAA
AD-8118A JOURNAL PRINTER USED SPARE
New ADDA 12VDC Brushless Blower Fan AB5012MB-C03
Lot 33 TYCO1658629-1 SFP CAGE Connector 2X4 PRESS FIT
New Alcatel SERV 3DB02155AA
Alcatel OC3C/STM1C IR I/O CARD Refurbished
New Alcatel MD128W1 3DB02136AA
Alcatel SWL-B LHR R2.0 FEE License Certificate
Lot of 10 SANDVIK inserts 340.009 240 N134 R535 08B/864
LOGICODE MT-LC-D960C Communication Unit Cradle
Lot of 10 lbs ALLFAST RIVET SOLID AF1049W1C6C6 Boeing
Alcatel 3AL97690AA LC-ESC board
Vision Multiswitch V5-508
Fuji Electric DC-02121 DDC TR285698 Control Board
Fuji Electric Pulse Amplifier TR284228
Fuji Electric Pulse Transmitter TR490533C TR284654A
NOKIA D50e ATM LINK INTF CARD eSTM1LS E35478.01
IP05 IP ENGINE ipanema xx-256-CF512-2-X-G4
GE Energy Power module 151X1225EK01PC03 230V TO 12V
HoneyWell C7061F2001 Purple Peeper Flame Detector C7061
IRIS Model P522 P522AC Flame Monitor Signal Processor
HLOS CL-7000 Electrical Screwdriver & CLT-150 power
lot 520 iKANOS Fusiv IKF68331-A1-PB1-C chips $4/each
ABB 3BSE040360R41 Compact Control Builder CD license
CG171A-T003-05 Reflector Film UX188 etching mould USED
HoneyWell C7012A 1202 Purple Peeper UV Flame Detector
Mitsubishi Melsec FX1N-14MR-001 PLC Logic Controller
Yamatake azbil R4780B R4780B1003 Protector Relay
Agilent Brass 5080-8750 5180-4121 5180-4160 8710-1709
Lot 13 pcs QLOGIC ISP2322 chips PN: 2405448 $12/pc New
LINCOLN 82050 Barrel Grease Pump
keofitt M4 Valve Body type T 400001
HP COMPAQ 416039-001 405963-001 NC6200 NC6300 KEYBOARD
SAMSUNG A-PRO Power Supply APP-1373V
MACTek VIATOR Bluetooth Interface Model 010041
HITECH HMI PWS6500-S Touch Screen New Surplus
SIMATIC BOX PC 820 6ES7647-3DC00-0DX0 USED
Cisco Unified Communications Manager CM6.1U4-K9-UPG=
WENDT Cutter Grinding DIA Blade L16A.000.048 NEW in box
Lot 500 JST Connectors 06NR-E4K(LF)
Lot 520 JST Connectors S7B-PH-K(T)