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A20B-8100-0261現(xiàn)貨 in stock! 歡迎來(lái)電咨詢~��！

A20B-8100-0261,

A20B-8100-0261

該體系采用PLC作為操控中心，完成PID閉環(huán)運(yùn)算、多泵上下行切換、顯示、故障確診等功用，由變頻器調(diào)速方法主動(dòng)調(diào)理水泵電機(jī)轉(zhuǎn)速，達(dá)到恒壓供水的意圖。

　　一、前語(yǔ)

　　跟著操控技術(shù)的發(fā)展與完善，變頻器及PLC在各個(gè)行業(yè)的使用愈來(lái)愈廣，PLC與變頻器的可靠性與靈活性得到了用戶的認(rèn)可。一起傳統(tǒng)的水塔供水方法暴露了許多缺點(diǎn)：水的二次污染，用水高低峰的不平衡，管道閥門易損壞，維修保養(yǎng)費(fèi)用過(guò)高等等。在此條件下各種恒壓供水方法應(yīng)運(yùn)而生，其間由變頻器、PLC操控的方法尤為遍及，這種方法的特色：體系穩(wěn)定，功用強(qiáng)大，變頻器用于供水更加節(jié)能，所以廣泛使用在多層住宅小區(qū)生活消防供水體系中，現(xiàn)在許多場(chǎng)合也有使用，比方中央空調(diào)體系、供水加壓站、集中供熱等，這種方法經(jīng)受了時(shí)刻的考驗(yàn)，已有許多的使用實(shí)例。本文介紹的體系在寶雞某電廠家屬區(qū)已從98年運(yùn)轉(zhuǎn)至今，體系穩(wěn)定，性能可靠，得到了用戶的必定和好評(píng)。

　　二、體系組成：

　　1、體系概述：

　　該體系由四臺(tái)大泵(22KW)與一臺(tái)小泵(5.5KW)組成;PLC部分由西門子可編程操控器S7-200系列的CPU226，文本顯示器TD200組成;變頻器采用三菱FR-A540系列，功率22KW。

　　用戶所需的生活用水壓力、消防用水壓力、運(yùn)轉(zhuǎn)方法等參數(shù)在TD200文本顯示器上設(shè)定，壓力傳感器把用戶管網(wǎng)壓力轉(zhuǎn)換為0-10V標(biāo)準(zhǔn)信號(hào)送進(jìn)PLC模擬量模塊EM235，PLC經(jīng)過(guò)采樣程序及PID閉環(huán)程序與用戶設(shè)定壓力構(gòu)成閉環(huán)，運(yùn)算后轉(zhuǎn)換為PLC模擬量輸出信號(hào)送給變頻器，調(diào)理水泵電機(jī)轉(zhuǎn)速，達(dá)到恒壓供水的意圖。

　　該體系有各個(gè)泵的運(yùn)轉(zhuǎn)時(shí)刻累計(jì)功用，經(jīng)過(guò)PLC的數(shù)據(jù)區(qū)保持可以斷電回憶。每次起動(dòng)時(shí)先起動(dòng)1#小泵，當(dāng)用水量超越一臺(tái)泵的供水能力時(shí)，PLC經(jīng)過(guò)程序完成泵的延時(shí)上行切換，切換原則為當(dāng)前未運(yùn)轉(zhuǎn)的大泵累計(jì)運(yùn)轉(zhuǎn)時(shí)刻最少的先投入;當(dāng)壓力超越時(shí)，PLC經(jīng)過(guò)程序完成泵的延時(shí)下行切換，切換原則為當(dāng)前正在運(yùn)轉(zhuǎn)的大泵運(yùn)轉(zhuǎn)時(shí)刻最多的先撤出。直到滿足設(shè)定壓力為止。尋求的最終目標(biāo)為壓力恒定。

　　當(dāng)供水負(fù)載變化時(shí)，變頻器的輸出電壓與頻率變化主動(dòng)調(diào)理泵的電機(jī)轉(zhuǎn)速，完成恒壓供水。

　　體系還可經(jīng)過(guò)PLC的實(shí)時(shí)時(shí)鐘主動(dòng)守時(shí)供水，用戶在TD200上設(shè)定每天最多6段(段數(shù)也可設(shè)定)守時(shí)供水，比方早上6：00到8：30，中午11：20到1：30等。

　　體系可動(dòng)態(tài)顯示各種參數(shù)，如設(shè)定壓力，運(yùn)轉(zhuǎn)壓力，水位高度，運(yùn)轉(zhuǎn)方法，實(shí)時(shí)時(shí)刻，日歷，各個(gè)泵的運(yùn)轉(zhuǎn)時(shí)刻累計(jì)(準(zhǔn)確到秒)，運(yùn)轉(zhuǎn)狀況，故障信息等等。為了不使體系中TD200畫面顯得呆板，在PLC程序中操控TD200中的畫面守時(shí)切換，動(dòng)態(tài)顯示;

　　體系還有故障自確診功用，各泵發(fā)作過(guò)載、缺相、短路、傳感器斷線、傳感器短路、水位下限、水壓超高、水壓超低、變頻器故障等，都會(huì)有聲光報(bào)警，TD200上一起顯示故障類型，告訴設(shè)備維修人員處理，并可回憶故障發(fā)作時(shí)刻及班次，以便追查原因及相關(guān)責(zé)任。

　　2、作業(yè)原理：主動(dòng)手動(dòng)方法

　　(1)手動(dòng)運(yùn)轉(zhuǎn)時(shí)，可按下按鈕起動(dòng)中止水泵在工頻狀況下運(yùn)轉(zhuǎn)，徹底脫離開(kāi)PLC及變頻器的操控，該功用首要用在檢修及主動(dòng)體系出現(xiàn)故障時(shí)的應(yīng)急供水方法中。

　　(2)主動(dòng)運(yùn)轉(zhuǎn)時(shí)，悉數(shù)泵的運(yùn)轉(zhuǎn)依程序主動(dòng)作業(yè)。

　　上行過(guò)程：當(dāng)在主動(dòng)運(yùn)轉(zhuǎn)方法時(shí)，按下TD200上的起動(dòng)軟健，體系先起動(dòng)1#小泵，PLC程序操控模擬量模塊EM235給定變頻器一固定頻率輸出，此時(shí)若用 PID運(yùn)算輸出直接操控變頻器則(設(shè)定壓力大，運(yùn)轉(zhuǎn)壓力為零，所以運(yùn)算輸出最大)變頻器依設(shè)定的上升時(shí)刻運(yùn)轉(zhuǎn)，升速太快，體系沖擊很大。等泵運(yùn)轉(zhuǎn)一會(huì)兒，管網(wǎng)壓力堆集后，再用PID運(yùn)算輸出操控變頻器。具體時(shí)刻和頻率與管網(wǎng)體系有關(guān)，在現(xiàn)場(chǎng)調(diào)試時(shí)這兩個(gè)參數(shù)在TD200上設(shè)定調(diào)整。管網(wǎng)越大，時(shí)刻越長(zhǎng)。

　　當(dāng) 1#小泵達(dá)到50HZ后，體系壓力仍偏低，則延時(shí)一段時(shí)刻后，體系靠PLC程序把1#泵切換到工頻運(yùn)轉(zhuǎn)，一起由PLC輸出一個(gè)開(kāi)關(guān)量給變頻器的MRS端子，變頻器瞬間制止輸出，此時(shí)PLC把運(yùn)轉(zhuǎn)時(shí)刻最少的泵變頻接觸器接通后，撤掉制止輸出，相應(yīng)的泵變頻起動(dòng)運(yùn)轉(zhuǎn);延時(shí)切斷1#小泵，體系中相應(yīng)的一臺(tái)大泵變頻運(yùn)轉(zhuǎn)，壓力主動(dòng)調(diào)理，若體系壓力平衡，則頻率穩(wěn)定在一個(gè)相對(duì)的規(guī)模，若頻率達(dá)到50HZ后壓力依然偏低，則再投入一臺(tái)大泵，比較剩下的泵的累計(jì)運(yùn)轉(zhuǎn)時(shí)刻，時(shí)刻少的先行投入，以此類推。注意，上行中，只要有一臺(tái)大泵運(yùn)轉(zhuǎn)，則1#小泵要斷開(kāi)，大泵與小泵一起運(yùn)轉(zhuǎn)時(shí)，小泵的功率很低。

　　下行過(guò)程：當(dāng)體系壓力偏高，變頻器運(yùn)轉(zhuǎn)在18HZ左右(18HZ以下泵的功率很低，經(jīng)驗(yàn)值)時(shí)，PLC程序判斷運(yùn)轉(zhuǎn)在工頻狀況的泵累計(jì)運(yùn)轉(zhuǎn)時(shí)刻(若只有一臺(tái)泵不作判斷)，運(yùn)轉(zhuǎn)時(shí)刻最多的泵延時(shí)先行撤出，在撤出的瞬間，PLC操控變頻器運(yùn)轉(zhuǎn)頻率在50HZ，要不體系沖擊過(guò)大，簡(jiǎn)單有水垂現(xiàn)象，延時(shí)一會(huì)兒后，再把 PID運(yùn)算輸出投入即可;以此類推。注意：下行過(guò)程中，到最后一臺(tái)大泵運(yùn)轉(zhuǎn)時(shí)，頻率在18HZ左右，體系壓力依然偏高時(shí)，則把1#小泵切換到變頻運(yùn)轉(zhuǎn)。這種情況在夜間或許發(fā)作，當(dāng)供水管網(wǎng)很大時(shí)，也許沒(méi)有這個(gè)或許性。

　　三、注意事項(xiàng)：

　　1、該體系中有泵的工頻變頻上行切換，為了體系的快速響應(yīng)，切換時(shí)刻最好越短越好，切換時(shí)時(shí)刻差很小，所以各個(gè)泵的變頻接觸器與工頻接觸器最好用可逆接觸器，電氣線路與PLC程序中也要有互鎖功用。避免發(fā)作意外短路事端。對(duì)體系或變頻器形成危害。

　　2、變頻器上行下行切換時(shí)刻設(shè)定，假如設(shè)定值過(guò)大，則體系不能迅速對(duì)管網(wǎng)的用水量做出反應(yīng);假如設(shè)定值過(guò)小，則或許引起體系頻繁的投入泵，撤出泵的動(dòng)作;為此，PLC程序中增加判斷設(shè)定壓力與運(yùn)轉(zhuǎn)壓力在臨界切換狀況時(shí)，只要不超越答應(yīng)的誤差規(guī)模內(nèi)，不做泵的切換。

　　3、變頻器在上行切換時(shí)，必須要有瞬間制止輸出功用，變頻器沒(méi)有此功用可用自在停車功用;所以選擇變頻器時(shí)要注意這點(diǎn)。

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188-K1C320-N Miniature Circuit Breaker 32 A

194E-KA63E-P11 194E Load switch

2090-CFBM7DF-CEAF07 Kinetix 7m Flexible Cable

2090-UXNBMP-18S60 MP-Series 60 m Length Brake Cable

BC646SPY365 Solution Provider Annual Base Lic.-Europe

GC647IFESGDV00075 GCC iFIX Optn: ESig & ERec 75 I/O Dev

IC200ALG430LT ANALOG MIXED 12 BIT INPUT CURRENT 4CH AND OUTPUT CURRENT 2CH (LT)

IC646MCD001 Proficy Machine Edition 5.70 CD Set - Includes Installation CD and Supplemental CD with NO License

IC647IFPRRN00150C iFIX Profsnl SCADA 150 I/O Runtime (M1Component Part)

IC660TBA023 Terminal Assembly for IC660BBA023

IC697CHS782 Integrators Rack, 17 Slots, Rear Mount

IC800CBL067 Power cable for B0.5/3000 motor. 14 meters

ControlLogix/1756 System 1756-A17 17 SLOT CONTROLLOGIX CHASSIS

Industrial Computers 6182H-7KRH6D VVCE 700, KEYPAD, STD MEM, RIO/DH, DC

Process Control 9358-PBBK60ENE RSBIZWARE BATCH FOR PLX BACK-UP KEY 60 UNITS

Operator Interface 2711P-T15C4D1 PV PLUS 1500, TOUCH, ENET, DC PS, STD MEM

Support 9352-WGG200S SUPT RENEWAL CONTRACT FOR 9352WGG200

Support 9330-GC100S SUPT RENEWAL CONTRACT FOR 9330GC100

ControlNet Products 1786-RPA CONTROLNET MODULAR REPEATER ADAPTER

RSI Software Products 9301-2SE235FRU1R RSVIEW32 WORKS 150-5K UPGRADE OUT-SUPT (FR)

RSI Software Products 9355-JBOXENE RSJUNCTIONBOX

Motion Control MPL-A310F-HK22AA MOTOR,SERVO,1.58NM,3000RPM,ENCDR,230V,3.0KG

Motion Control 2090-DANBT-18S09 CABLE, NON-FLEX, MTR BRK FOR CABLE-MTD CONNS, 09M

BC646TJV000 HMI Tracker Display with Proficy GlobalCare

IC300TRM312 Cage-clamp (screw) style I/O plug, 12 terminal

IC800CBL002 Digital Servo Command Cable for DSM302, 3 Meters

OC646IFWTRSLNBSCSP Water Solutions Pk 2008 Basic SP Edition

20AD014A3AYNACC0 PowerFlex 70 AC Drive 14 A at 10 Hp 20A

20DC072A0NYNANBNE PowerFlex 700S AC Drive 72 A 37 kW 20D

20G1AND156AN0NNNNN PowerFlex 755 AC Packaged Drive

25C-B8P0N104 PowerFlex 527 1.5kW (2Hp) AC Drive

280-MTR35-LC ArmorConnect Connection Locking Clip

FX1N-24MT 主機(jī)14點(diǎn)入/10點(diǎn)出?晶體管輸出

1492-M5X10C Connection Products

1494G-GF3N NEMA 1494G Enclosed Disconnect

軟啟動(dòng)器 3RW44442BC34

ET 200SP 6ES7134-6FF00-0AA1 AI 8xU 基本型，基座單元類型 A0、A1

1585D-M4HBJM-4 Micro D-Code, QD Style Ethernet Media

1756-CFM ControlLogix Config Flowmeter Module

1794-IRT8 Flex 8 Point Thermocouple RTD Module

194E-CA20E-P11-PE 194E Load switch

2080-OV4 Micro800 4 Point Sink Output

2090-CSWM1DF-18AA35 Kinetix Cable Single DSL 2090-Series

20AC5P0A3AYNACC0 PowerFlex 70 AC Drive 5 A at 2.2 kW 20A

GC646MRC150 Proficy GlobalCare Complete for Logic PC & View Runtime 150 I/O

HE693STP113 Discontinued Part. Check with GE IP on migration path.

IC610PER154RR Series One PROM Writer Unit (Snap On)

IC647HSTSS20000KM Historian Standard Server 20,000,000 Points (M4 Key)

IC660BBR101RR Relay Block, Normally Open

IC695ALG312CA Conbal Coated. Isolated Thermocouple Input module provides twelve isolated differential thermocouple b channels. Each channel can be individually configured for bs from: Thermocouple types: J, K, T, E, R, S, B, N, or C and Voltage: +/-150

IC756WDS000J-28 DataViews Development System for Visual Basic, Java, C++, & Native C & Custom Editor 1 User, Japanese v2.8

CompactLogix System 1769-OB32 1769 32 POINT 24VDC OUTPUT MODULE

PLC-5/1771 System 1785-ACC5LA ACCESSORY KIT FOR PLC-5/11,5/20

Distributed I/O 1799-D10U10BL 24 VDC 20 POINT SRC OUT I/O BOARD WITH LOGIC

Operator Interface 2711P-K6M5A PV PLUS 600 GRAYSCALE, KEYPAD, RS232, AC PS. INCL

Support 9325-L5140S SUPT RENEWAL CONTRACT FOR 9325L5140

Support 9358-PBEPB03R SUPT REINSTATEMENT CONTRACT FOR 9358PBEPB03ENE

Support F1775-S5 FIRMWARE UPGRADE FOR 1775-S5 PLC3 PROCESSOR MODULE

RSI Software Products 9301-2SE2100DEE RSVIEW32 WORKS 150 (GERMAN)

RSI Software Products 9701-VWMR030AJPE RSVIEW ME STATION RT30 DISP-WINDOWS 2000 (JAPANESE

RSI Software Products 9359-PORTP50ENE RSPRODUCTION PORTAL 50 PAGE EXPANSION

Motion Control 2098-DSD-005 DRIVE, 2.5A/7.5A, ULTRA 3000

A06B-6093-K303 Connector Kit, Beta Amplifier Battery (CX5X, CX5Y)

IC200UEX213 28 point expansion. (16) 12VDC In, (12) Relay Out, 12VDC Power Supply (included IC200CBL501)

IC752CTD400RR Display Station - 9.5" active matrix VGA (640x480) infrared touch screen, 16 color support, Pentium 133, 32M, 1.2 Gig hard drive, expansion slots, Ethernet, with CIMPLCITY HMI and Win 95

MTR-3N32-H-R-0-N-SRR Servo Motor Nema34 with Seal

ZA06B-0219-B200 A2/6000HVis Servo Motor Sgt Shaft w/Key

20BD8P0A3AYNACD0 PowerFlex 700 AC Drive 8 A 5 Hp 20B

20G14NC456AN0NNNNN PowerFlex 755 AC Packaged Drive

25-PM2-D010 PowerFlex 520 4kW (5Hp) Power Module

TLXCDSUOFS33 Quantum SMALL OPC SOFTWARE (max. 1000 items)

FRN3.7C1S-4C 6. 9KVA 9.0A 3.7KW 3相AC380V/50Hz/60Hz

1492-J4-BL 4 square mm Feed-Through Terminal Block

1492-SPM3D200-N MCB Supplementary Protector 20 A

軟啟動(dòng)器 3RW40552BB45

SIMATIC 存儲(chǔ)卡 6ES7 954-8LL02-0AA0 SIMATIC MC 256 MB

150-SS Hand-Off-Auto Metal Selector Sw Kit

1738-IE4CM12 ArmorPoint 4 Point Input Module

1784-PCM2 DIRECT CONNECT CBL 15PIN D SHELL PLC-2

193-NCIO-43-CNT E300/E200 Control Module Connectors

20-750-PNET2P PowerFlex 750 2-port PROFINET IO Kit

2090-CSBM1DE-14AA05 Kinetix Cable Single DSL 2090-Series

20AB4P2A3AYNNNC0 PowerFlex 70 AC Drive 4.2 A at 1 Hp 20A

GA647IFPRDV00900 GCA iFIX Profsnl SCADA 900 I/O Dev

GP647IFESGRN00075 GCP iFIX Optn: ESig & ERec 75 I/O Run

IC600BF903RR 48Vdc Sink Output Module (8 points)

IC647HSTCR1000KM Collector Redundancy Option for Historian - Standard Server 1,000,000 Points (M4 Key)

IC647TIEM TIE:Texas Instrument TI/5 CTI or Siemens

IC693PBM200 Profibus DP Master Module

IC756LDV010J-912 DV-Draw Development on Inb Linux/Red Hat 32 bit, Japanese v9.12

MicroLogix 1000/1761 System 1761-L16AWA 16 I/O MICROLOGIX 1000

PLC-5/1771 System 1771-OXK CONFORMALLY COATED, POWER CONTACT OUTPUT MODULE

Distributed I/O 1791-NDV BLOCK I/O, 24V DC, 6 POINT ANALOG MODULE

Communications 1786-RPFRL CONTROLNET FIBER RING REPEATER - LONG

Operator Interface 9399-WVDUG WINTELLIGENT VIEW USER GUIDE

Support 9356-PRO2400S SUPT RENEWAL CONTRACT FOR 9356PRO2400

Support 1789-SL51R SUPT REINSTATEMENT CONTRACT FOR 1789SL51

EtherNet/IP Products 9351-HPUSRT INTERCHANGE FOR HP-UX RUNTIME

RSI Software Products 9301-2SE3500FRU3 RSVIEW32 RUNTIME 300-100K UPGRADE IN-SUPT (FR)

RSI Software Products 9356-PRO2500U3R UPGRADE: OUT-SUPT: RSSQL STD.1500 TO 70000 TAGS

Motion Control N-4220-2-H00AA MOTOR,NEMA 42,20 LB-IN,5000 RPM

44A731205-G03 Upgrade Kit Genius IC660BBA024

IC200ALG431 ANALOG MIXED 12 BIT 0-10V INPUT 4CH AND OUTPUT 2CH

IC693PWR328 Power Supply, 48 Vdc, Standard

Silver Series 9500-CPAKPMENE CONTROLPAK RT PLUS - MEDIUM SYSTEM

VSPC32-ADMIN5 VisualSPC Administration Bundle includes Attributes, Analyst, Designer , Wizard, Importer and Reports. 5 License Pack.

20BD027A3AYNACC1 PowerFlex 700 AC Drive 27 A at 20 Hp 20B

20G11FD8P0AA0NNNNN PowerFlex 755 AC Packaged Drive

22C-D370A103 PowerFlex 400- 200 kW (300 HP) AC Drive

520480000 Quantum CONN COAX M/F R/A F-STYLE

285-M25M-M05 Source Brake Receptacle Male, M25

E6C2-CWZ3E 5-12VDC,電壓輸出,負(fù)載電流20mA, 3相,1000P/R