41391-454-01-S1FX41391-454-01-S1FX
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您需要的產(chǎn)品找不到了是嗎?別急!廈門卡庫*【丘丘】一零九三二三零一八九
您心情激動(dòng)不已了是嗎?別急!請(qǐng)?jiān)儍r(jià)【零五九二-------五七零九八二三】
41391-454-01-S1FX41391-454-01-S1FX
41391-454-01-S1FX41391-454-01-S1FX
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《公司主營》：
<AB>: PLC 伺服驅(qū)動(dòng) 伺服電機(jī) 電纜模塊 全系列產(chǎn)品。
<Siemens>: 300 400 PLC CPU 6DD 6FC 6GK 6EP 6GT 6GF 卡鍵 電源 伺服驅(qū)動(dòng) 伺服電機(jī) 數(shù)控面板 810、802D SL、810D、840D 全系列數(shù)控產(chǎn)品
<FANUC>： A03B 模塊 A16B A20B A02B 板卡 A06B 伺服驅(qū)動(dòng) 伺服電機(jī) A05B 機(jī)器人備件，A860 編碼器 氧傳感器
<Rexroth>： 伺服驅(qū)動(dòng)，伺服電機(jī) 電源模塊 全系列數(shù)控伺服
<Schneider>： 140PLC CPU 全系列 Lexium 05、Lexium 23 伺服驅(qū)動(dòng)停產(chǎn)備件、Berger Lahr 全系列。
<ABB>:3HAC 3HNE 3HAB 機(jī)器人驅(qū)動(dòng)，示教器 電纜 伺服電源 控制單元ADVANT OCS 和 Bailey INFI90 全系列。
<安川>：伺服驅(qū)動(dòng) 示教器 伺服電源 控制板
隨著變頻調(diào)速技術(shù)的發(fā)展和人們對(duì)生活飲用水品質(zhì)要求的不斷提高，變頻恒壓供水系統(tǒng)已逐漸取代原有的恒速泵組切換加壓供水、調(diào)節(jié)閥門供水、高位水塔供水等供水系統(tǒng)，廣泛應(yīng)用于多層住宅小區(qū)和高層建筑生活及消防供水系統(tǒng)。然而，運(yùn)用單片機(jī)或PLC與變頻器結(jié)合為核心的供水控制系統(tǒng)，往往會(huì)繼續(xù)使用原有系統(tǒng)的部分舊設(shè)備（如水泵），在對(duì)原有供水系統(tǒng)進(jìn)行變頻改造的實(shí)踐中，往往會(huì)出現(xiàn)一些在理論上意想不到的問題。如單片機(jī)在硬軟件設(shè)計(jì)、程序調(diào)試難度較大，系統(tǒng)抗干擾性能較差；而采用帶有模人膜出的PLC，設(shè)備成本高，PID算法編程難度大，現(xiàn)場調(diào)試要求調(diào)試人員素質(zhì)比較高。因此對(duì)于難以確定數(shù)學(xué)模型且控制精度要求不太高的系統(tǒng)。將PLC與交流變頻調(diào)速技術(shù)相結(jié)合，采用實(shí)用有效的模糊控制算法，開發(fā)更易實(shí)現(xiàn)供水參數(shù)的調(diào)節(jié)、可靠性高、控制性能好的恒壓供水模糊控制系統(tǒng)具有很高的實(shí)用價(jià)值。 [b]1 變頻恒壓供水控制系統(tǒng)的設(shè)計(jì) 1．1系統(tǒng)設(shè)計(jì)方案分析[/b] 目前國內(nèi)多數(shù)供水企業(yè)水泵類機(jī)械的典型電氣傳動(dòng)仍是用鼠籠式異步電動(dòng)機(jī)驅(qū)動(dòng)，因?yàn)樗哂薪Y(jié)構(gòu)簡單、運(yùn)行可靠、維修方便、價(jià)格低廉等優(yōu)點(diǎn)。但其本身調(diào)速較難，故常為恒速運(yùn)轉(zhuǎn)；當(dāng)需要調(diào)節(jié)流量時(shí)，則采用調(diào)節(jié)閥門的方法，這至少浪費(fèi)20％的能源。統(tǒng)計(jì)表明，我國每年水泵消耗的電能約占電能總耗的20％以上，而電耗又占水費(fèi)成本的6O％以上。
隨著我國經(jīng)濟(jì)的不斷發(fā)展，社會(huì)高度信息化，新的高科技技術(shù)不斷應(yīng)用到各個(gè)方面中，使得智能化已成為一種發(fā)展的必然趨勢。智能化也往往是從設(shè)備自動(dòng)化系統(tǒng)開始。本文主要根據(jù)個(gè)人工作經(jīng)驗(yàn)就一臺(tái)水冷螺桿機(jī)組來闡述PLC控制設(shè)計(jì)與智能化*空調(diào)系統(tǒng)的關(guān)系。 1.2 PLC原理及應(yīng)用 *空調(diào)冷凍系統(tǒng)的控制有3種控制方式：早期的繼電器控制系統(tǒng)、直接數(shù)字式控制器DDC以及PLC（可編程序控制器）控制系統(tǒng)。繼電器控制系統(tǒng)由于故障率高，系統(tǒng)復(fù)雜，功耗高等明顯的缺點(diǎn)已逐漸被人們所淘汰，直接數(shù)字式控制器DDC雖然在智能化方面有了很大的發(fā)展。但由于DDC其本身的抗*力問題和分級(jí)分步式結(jié)構(gòu)的局限性而限制了其應(yīng)用范圍。相反，PLC控制系統(tǒng)以其運(yùn)行可靠、使用與維護(hù)均很方便，抗*力強(qiáng)，適合新型高速網(wǎng)絡(luò)結(jié)構(gòu)這些顯著的優(yōu)點(diǎn)使其逐步得到廣泛的應(yīng)用。 可編程控制器是計(jì)算機(jī)家族中的一員。于上個(gè)世紀(jì)中后葉被發(fā)明后，在機(jī)床、各種流水線的輸送機(jī)械、發(fā)電、化工、電子等行業(yè)工藝設(shè)備的電氣控制方面得到了廣泛的應(yīng)用，早期的可編程控制器被稱作可編程邏輯控制器（Programmable Logic Controller）, 即簡稱為PLC。 PLC具有功能強(qiáng)大、使用可靠、維修簡便等許多優(yōu)點(diǎn)。對(duì)于傳統(tǒng)的繼電器電路來說，它難以實(shí)現(xiàn)復(fù)雜邏輯功能的和數(shù)字式控制，而且要實(shí)現(xiàn)一定規(guī)模的邏輯控制功能不僅設(shè)計(jì)繁瑣，難以實(shí)現(xiàn)升級(jí)，并易發(fā)故障，維修復(fù)雜，現(xiàn)在已被大中型設(shè)備的控制系統(tǒng)所拋棄。而PLC正被廣泛的應(yīng)用并且已逐步取代了繼電器電路的邏輯控制。隨著科學(xué)技術(shù)不斷的飛躍發(fā)展，PLC也不斷得到完善和強(qiáng)大，同時(shí)它的功能也大大超過了邏輯控制的范圍，如聯(lián)網(wǎng)通信功能和自診斷功能等。因此今天這種裝置被我們稱作可編程控制器，不過我們還是習(xí)慣簡稱這種裝置為PLC。
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NEW FISHER 10A9484X072 VALVE BONNET ASSEMBLY STEEL D479983
RVSI 910-2 CIMATRIX OMNI CIX-L LASER BARCODE SCANNER
ALFA LAVAL SRU2NLS TRI CLAMP 1-1/2 IN STAINLESS ROTARY LOBE PUMP
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BAILEY IMCOM03 INFI 90 ENHANCED CONTROLLER 24V-DC 6VA PCB CIRCUIT
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ATLAS COPCO 1614-6927-80 FLOAT VALVE 1/2IN NPT AIR COMPRESSOR
NEW SQUARE D MHF361000 3P 1000A AMP 600V-AC MOLDED CASE CIRCUIT
ALLEN BRADLEY 1336S-C030-AN-FR 30HP ADJUSTABLE FREQUENCY MOTOR
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BTG BT-5000 ELEC PROGRAMMABLE BRIGHTNESS 110/220V-AC TRANSMITTER
ABB ACS501-040-4-00P21 3PH 40HP 440-500V-AC 0-500HZ MOTOR DRIVE
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POST GLOVER PR04500P132/18993 36OHM 3100W RESISTOR
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ABB BIAC-1000 TMP CONSISTENCY 230VAC 100W 50-60HZ ANALYZER
SIEMENS OP270 6AV6 542-0CA10-0AX0 SIMATIC INTERFACE PANEL 24V-DC
BAILEY IMSER02 INFI90 SEQUENCE OF EVENTS MASTER DATA INPUT MODULE
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GE FANUC VMIC VMIVME-7587 VME VMEBUS SINGLE BOARD COMPUTER CPU
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NEW MARKEM SMART DATE KEY PAD OPERATOR INTERFACE PANEL D346953
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BEST POWER SSEDA-0130C PCN-0079C CONTROL MODULE ASSEMBLY CIRCUIT
FISHER 8560 3620J 8 IN BUTTERFLY PNEUMATIC 150 STAINLESS CONTROL
NEW EDYNE GV1000-04-V-00 CONTROLLER D419009
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LOT 429 NEW JOHN CRANE 601EB-00625-00781-050 PACKING RING D394773
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SIEMENS 6FX1126-8BA00 SINUMERIK 570 268 9001 INTERFACE PCB
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NEW OHMART 239622 AX1706020 11 PCB CIRCUIT BOARD B410881
NEW WELLS FARGO ZAU-1 ALARM CONTROLLER PCB CIRCUIT BOARD B473243
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NEW ALLEN BRADLEY 1756M13 CONTROLLOGIX5555 SER A MEMORY MODULE
NEW AEG MODICON AS-B875-002 ANALOG INPUT MODULE D471792
NEW ALLEN BRADLEY 2711-B5A10 PANELVIEW 550 SER H OPERATOR
ABB CI627A BUS ADMINISTRATOR COMMUNICATION 24V-DC INTERFACE
NEW STOCK EQUIPMENT 4-C15444 MPC SWITCH PANEL REV A PCB CIRCUIT
MOOG 760-851 THREADED SERVO HYDRAULIC VALVE D467352
CATERPILLAR CAT 129-9515 HARNESS CABLE-WIRE TRUCK EQUIPMENT
NEW ASEA DSPC 154 57310001-BY/4 EXPANDER PCB CIRCUIT BOARD
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GE FANUC IC693DNM200-BD 90-30 SERIES 90-30 DEVICENT MASTER OUTPUT
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NEW GENERAL ELECTRIC GE 1572K17G700 AMPLIFIER PCB CIRCUIT BOARD
GE FANUC IC693DNM200-BD 90-30 SERIES 90-30 DEVICENT MASTER OUTPUT
LIEBERT 4550007H-D SICE PWA UPS LOGIC 0220006U-C PCB CIRCUIT
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NEW CONVAL 12G2RJ 2IN 1500 STEEL SOCKET WELD GLOBE VALVE
NEW HSB AUTOMATION 80-CP-ZSS-32AT10-210-800-1190 MECHANICAL LINER
OHMART LFXG-H-096-V6-H1-M4-S00 FIBREFLEX GEN2000 DETECTOR LEVEL
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ACRISON W105-F VOLUMETRIC DRY CHEMICAL GEARED FEEDER B413799
ABB ACN6340120500000300902 ACS 600 0-300HZ 135A AMP AC MOTOR
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NEW FISHER 249 TYPE 2500R CONTROLLER LEVEL TRANSMITTER DISPLACER
NEW THEMIS TSVME-408 48 OPTO-ISOLATED INPUT CARD PCB CIRCUIT
GE 6VAF-343040C-A2 AF-300C 40HP 380-460V-AC 0.5-400HZ 60A AMP AC
HONEYWELL 80363969-150 HD IOP HPM A/O CC ANALOG 16 POINT OUTPUT
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OHMART LFXG-H-096-V6-H1-M4-S00-L2 FIBERFLEX LEVEL DETECTOR SENSOR
AURORA G6S-BF 80-12462 3 IN 2-1/2 IN REGENERATIVE TURBINE PUMP
ALLEN BRADLEY 1336F-CWF20-AN-EN 2HP 500/600V 575V 0/400HZ MOTOR
NORDSON 2304 S 1/3PH 5520W HOT MELT GLUE ADHESIVE APPLICATOR 200
NEW INDAG 50101632/BPM-19-09 STAINLESS CENTERING HEAD GUIDE
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CATERPILLAR CAT 129-9515 HARNESS CABLE-WIRE TRUCK HEAVY EQUIPMENT
ALLEN BRADLEY X-289352 RST-3 STARTING 3PH VOLTAGE TRANSFORMER
NEW INGERSOLL RAND 37165388 CHANNEL VALVE REPAIR KIT D482361
INGERSOLL RAND 650492-G43-B ARO PNEUMATIC CHOP CHECK PUMP D403127
NEW LABEL 6P4019042 SLIP RING UNIT CONNECTOR D309784
GENERAL ELECTRIC GE 4006L5001 POWER SUPPLY CARD PCB CIRCUIT BOARD
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NORD 979027 950353H 970003E INPUT 1/2IN NPT MANIFOLD HYDRAULIC
OPTECH SENTINEL 3100 LONG RANGE LASER BASED LEVEL MONITOR 1-1/2A
NEW BECKMAN 7C 613900 THERMAL CONDUCTIVITY ANALYZER 120V-AC 2A
EDYNE 155902 ANALYTICAL 0-10PPM SCALE TRACE OXYZEN ANALYZER
ABB 3BSE010796R1 SE9934H395 PM825 MODULE S800 CPU PROCESSOR
ABB 3BSE010796R1 PM825 PR:B AC80:1.1/0 801SW010 MODULE CPU
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NEW BRUNSWICK SCIENTIFIC 4080 INNOVA INCUBATOR SHAKER 120/240V-AC
NEW CEGELEC 8151-4002 ANALOG OUTPUT MODULE D456011
HONEYWELL 14506952-R7044E 1092 HEATER CONTROL REV 5 PCB CIRCUIT
ALLEN BRADLEY 520G-DOD 110/120V-AC 50HP 90A REVERSING MOTOR
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GE FANUC DS200FCRLG1AFC PCB CIRCUIT BOARD D339509
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VARIAN 47614/4 AUTO SAMPLER FOR SUPER CONDUCTING MAGNETIC SYSTEM
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APPLIED LUBRICATION TECHNOLOGY FLUID HANDLING 10X15IN ALEMITE
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PRECISE EQUIPMENT COMPANY FULLY AUTOMATIC PRESSURE DIFFERENTIAL
ALLEN BRADLEY 1336S-BRF75-AN-EN4 7.5HP 0-460V-AC 0-400HZ
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ABB 2668 180-524/1 DSMB133 MEMORY MODULE CARD PCB CIRCUIT BOARD
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NEW CAPP/USA 22819-02 IR INFRARED DETECTOR B296363
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ALLEN BRADLEY 1336-C005-EAD-S1 PLUS 5HP 575V-AC 6.7A AMP AC MOTOR
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LOMA SYSTEMS SUPERSCAN MICRO ISC 3.9X8.9IN APERTURE METAL
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NEW EMERSON MGE-455-CONS-0000 240V-AC 8.8A AMP 2.46HP 3PH SERVO
