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JACP-317120現(xiàn)貨 in stock! 歡迎來電咨詢~??！

JACP-317120,

JACP-317120

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

　　一、前語

　　跟著操控技術(shù)的發(fā)展與完善，變頻器及PLC在各個行業(yè)的使用愈來愈廣，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：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)費用過高等等。在此條件下各種恒壓供水方法應(yīng)運而生，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)受了時刻的考驗，已有許多的使用實例。本文介紹的體系在寶雞某電廠家屬區(qū)已從98年運轉(zhuǎn)至今，體系穩(wěn)定，性能可靠，得到了用戶的必定和好評。

　　二、體系組成：

　　1、體系概述：

　　該體系由四臺大泵(22KW)與一臺小泵(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)信號送進(jìn)PLC模擬量模塊EM235，PLC經(jīng)過采樣程序及PID閉環(huán)程序與用戶設(shè)定壓力構(gòu)成閉環(huán)，運算后轉(zhuǎn)換為PLC模擬量輸出信號送給變頻器，調(diào)理水泵電機轉(zhuǎn)速，達(dá)到恒壓供水的意圖。

　　該體系有各個泵的運轉(zhuǎn)時刻累計功用，經(jīng)過PLC的數(shù)據(jù)區(qū)保持可以斷電回憶。每次起動時先起動1#小泵，當(dāng)用水量超越一臺泵的供水能力時，PLC經(jīng)過程序完成泵的延時上行切換，切換原則為當(dāng)前未運轉(zhuǎn)的大泵累計運轉(zhuǎn)時刻最少的先投入;當(dāng)壓力超越時，PLC經(jīng)過程序完成泵的延時下行切換，切換原則為當(dāng)前正在運轉(zhuǎn)的大泵運轉(zhuǎn)時刻最多的先撤出。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，變頻器的輸出電壓與頻率變化主動調(diào)理泵的電機轉(zhuǎn)速，完成恒壓供水。

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

　　體系可動態(tài)顯示各種參數(shù)，如設(shè)定壓力，運轉(zhuǎn)壓力，水位高度，運轉(zhuǎn)方法，實時時刻，日歷，各個泵的運轉(zhuǎn)時刻累計(準(zhǔn)確到秒)，運轉(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中的畫面守時切換，動態(tài)顯示;

　　體系還有故障自確診功用，各泵發(fā)作過載、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，都會有聲光報警，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：主動手動方法

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

　　(2)主動運轉(zhuǎn)時，悉數(shù)泵的運轉(zhuǎn)依程序主動作業(yè)。

　　上行過程：當(dāng)在主動運轉(zhuǎn)方法時，按下TD200上的起動軟健，體系先起動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，此時若用 PID運算輸出直接操控變頻器則(設(shè)定壓力大，運轉(zhuǎn)壓力為零，所以運算輸出最大)變頻器依設(shè)定的上升時刻運轉(zhuǎn)，升速太快，體系沖擊很大。等泵運轉(zhuǎn)一會兒，管網(wǎng)壓力堆集后，再用PID運算輸出操控變頻器。具體時刻和頻率與管網(wǎng)體系有關(guān)，在現(xiàn)場調(diào)試時這兩個參數(shù)在TD200上設(shè)定調(diào)整。管網(wǎng)越大，時刻越長。

　　當(dāng) 1#小泵達(dá)到50HZ后，體系壓力仍偏低，則延時一段時刻后，體系靠PLC程序把1#泵切換到工頻運轉(zhuǎn)，一起由PLC輸出一個開關(guān)量給變頻器的MRS端子，變頻器瞬間制止輸出，此時PLC把運轉(zhuǎn)時刻最少的泵變頻接觸器接通后，撤掉制止輸出，相應(yīng)的泵變頻起動運轉(zhuǎn);延時切斷1#小泵，體系中相應(yīng)的一臺大泵變頻運轉(zhuǎn)，壓力主動調(diào)理，若體系壓力平衡，則頻率穩(wěn)定在一個相對的規(guī)模，若頻率達(dá)到50HZ后壓力依然偏低，則再投入一臺大泵，比較剩下的泵的累計運轉(zhuǎn)時刻，時刻少的先行投入，以此類推。注意，上行中，只要有一臺大泵運轉(zhuǎn)，則1#小泵要斷開，大泵與小泵一起運轉(zhuǎn)時，小泵的功率很低。

　　下行過程：當(dāng)體系壓力偏高，變頻器運轉(zhuǎn)在18HZ左右(18HZ以下泵的功率很低，經(jīng)驗值)時，PLC程序判斷運轉(zhuǎn)在工頻狀況的泵累計運轉(zhuǎn)時刻(若只有一臺泵不作判斷)，運轉(zhuǎn)時刻最多的泵延時先行撤出，在撤出的瞬間，PLC操控變頻器運轉(zhuǎn)頻率在50HZ，要不體系沖擊過大，簡單有水垂現(xiàn)象，延時一會兒后，再把 PID運算輸出投入即可;以此類推。注意：下行過程中，到最后一臺大泵運轉(zhuǎn)時，頻率在18HZ左右，體系壓力依然偏高時，則把1#小泵切換到變頻運轉(zhuǎn)。這種情況在夜間或許發(fā)作，當(dāng)供水管網(wǎng)很大時，也許沒有這個或許性。

　　三、注意事項：

　　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)，切換時刻最好越短越好，切換時時刻差很小，所以各個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。對體系或變頻器形成危害。

　　2、變頻器上行下行切換時刻設(shè)定，假如設(shè)定值過大，則體系不能迅速對管網(wǎng)的用水量做出反應(yīng);假如設(shè)定值過小，則或許引起體系頻繁的投入泵，撤出泵的動作;為此，PLC程序中增加判斷設(shè)定壓力與運轉(zhuǎn)壓力在臨界切換狀況時，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，必須要有瞬間制止輸出功用，變頻器沒有此功用可用自在停車功用;所以選擇變頻器時要注意這點。
 

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RSI Software Products 9701-VWSB250ENU2 RSVIEW SE STATION 100 - 250 DISPLAY UPGRADE

RSI Software Products 9399-L5PG 9399-L5PG PLC-5 A.K. SERIES PROGRAMMING GUIDE

Motion Control 2098-IPD-HV220-DN HIGH VOLTAGE DRIVE, 47A/94A, ULTRA5000 DEVICENET

BC646MDA300 View Development /Runtime 300 I/O

IC300FOX404 FOX Fiber Optic Base/Hub

IC752SKT000RR Datapanel K Starter Kit: Includes Datapanel K (DPK000), download & communication cables, WinCfg, user & programming manuals

MTR-3S67-G-R-0-E-SRR Servo Motor with Seal

ZA06B-6114-K504 Replacement lithium encoder battery pack for Alpha SVM1-180HVi amplifier

20C-PP00017 TERM BLOCK, PF 700H, I/O, NO. 1 - 10

20G1ABD545AN0NNNNN PowerFlex 755 AC Packaged Drive

25A-D017N114 PowerFlex 523 7.5kW (10Hp) AC Drive

2711P-T19C22A9P PanelView Plus 7 Graphic Terminal

6SE6440-2UC23-0CA1 3KW

1492-JKD4 4 mm Knife Disconnect Terminal Block

1492-WMG4 IEC Term Blck 8x47.6x41mm Screw

軟啟動器 3RW44233BC45

緊湊型信號模塊 6ES7 523-1BL00-0AA0 DI16/DQ16：數(shù)字量輸入 / 輸出模塊，16x 24VDC/16x 24VDC/ 0.5A BA, 25mm 模塊，含前連接器

1585-C4HB-S300 1585 Ethernet Cable

1746-OB16E SLC 16 Point Protected Output Module

1788-FBJB4R 1788 Redundant FF 4 Way Junction Box

194E-25-C3 194E 3 Pole Terminal Cover

20-PP01083 PLASTIC TRML BASE W/FILTER CAPS, FRAME 9

2090-CSBM1DF-18AA01 Kinetix Cable Single DSL 2090-Series

20AC030A3AYNANC0 PowerFlex 70 AC Drive 30 A at 15 kW 20A

GC-8459-EV-MT W/B-EBIM 30 DAY EVAL

GQPK3D200L2P 6 inch Monochrome/ GE Fanuc Label/ 24VDC/ UL/ cUL/ CE/ UL1604

IC600DM707RR DP Prom Type 1B Module (DPU)

IC647HSTES1000KM Historian Enterprise Server 1,000,000 Points (M4 Key)

IC647WKM001RR Workmaster II Sys Unit, 2 MB RAM, 60 MB HD, MS-DOS

IC694ALG233 RX3i Efficiency 16-Channel Advanced Analog Current Input module provides 16 single-ended or 8 differential b channels. 0 - 20mA and 4 - 20mA with 16 bit resolution. Advanced diagnostics. Requires Proficy? Machine Edition Logic Developer 6.5 SIM

IC756SDV000CT-99 DV Development - Solaris Op Sys, Traditional Chinese, Version 9.9

MicroLogix 1200 System 1762-IR4 4 CHANNEL, RTD/RESISTANCE MODULE

PLC-5/1771 System 1771-TCMR RTD TEMP CONTROL MODULE

Distributed I/O 1794-OC16 FLEX 48 VDC OUTPUT MDL

Communications 9399-LINXGR RSLINX GETTING RESULTS GUIDE

Support 6200-APIS SUPT RENEWAL CONTRACT FOR 6200API

Support 9358-BIZUC0PS SUPT RENEWAL CONTRACT FOR 9358BIZUC0PENE

Support F1771-DBSERA FIRMWARE UPGRADE FOR 1771-DB I/O MODULE

RSI Software Products 9324-RL5ENU2 UPGRADE: OUT-SUPT: WINLOGIC5 OFFLINE TO RSLOGIX5

RSI Software Products 9301-2SE350FRU5R RSVIEW32 RUNTIME 5K-100K UPGRADE OUT-SUPT (FR)

RSI Software Products 9358-HSTS2400U3 UPGRADE: IN-SUPT: HISTORIAN 1500 TO 32K TAG

Motion Control 8720SM-011S1DBS3 SPARE PART ONLY - GMS ITEM

788 SLDERLSS Field CONN Adapter, Used W/995, 4161 (2-4 Digits), 4162. Screw Term O/I'S For Data LNS

IC200MDL140 INPUT 120VAC (1 GROUP OF 8) 8PT

IC697CGR935 Hot Standby Genius Dual Bus CPU, 486DX4, 12K Discrete I/O, 1M fixed user memory, Floating Pt.

MTR-1235-E-D-E-0RR Stepping Motor Nema23 Encoder

Z44A730465-009 Motor half key for A12/2000 or A22/2000 motor

20BD096A0ANNAND0 PowerFlex 700 AC Drive 96 A 75 Hp 20B

20G11NC072JA0NNNNN PowerFlex 755 AC Packaged Drive

22F-D024N114 PowerFlex 4M- 11 kW (15 HP) AC Drive

990NAD23012 Quantum RUGGEDIZED MBUS+ TAP DIN

294D-FD2P5Z-G2 Variable Frequency Drive

S8JC-10024 NEW 220VAC，容量： 100W輸出 24V 4.2A

1492-SPM3B040 MCB Supplementary Protector 4 A

軟啟動器 3RW40272BB15

電機啟動器 3VU16402CR00

150-F480NBD SMC Flex Smart Motor Controller

1734-AENT POINT I/O Ethernet Network Adaptor

1783-BMS06SL Stratix 5700 6 Port Managed Switch

193-EGJ E1 Plus Ground Fault and Jam Module

20-750-BUS5-F9 PF755 FR9,IP00,DC IN,INPUT TERMINATION

2090-CPWM7DF-10AF05 MP-Series 5 m Length Power Cable

2097-V34PR3-LM Kinetix 350 1.0kW Servo Drive

ET-GT-9ES-2SC 8 RJ45 Ports, 1 Multimode Fiber Port Ethernet Switch

GFK-2060 VMIC

IC220MDL752 OUTPUT, 24VDC POSITIVE LOGIC 0.5A, 4PT (REQUIRES 1 IC220TBK123)

IC647DMC100 DataMart 100 Reporting Clients

IC647REAM REA:Reliance Electric Automate 15/20/30/40

IC693MDL330LT 120/240 Vac Output, 2 Amp (8 Points) (LT)

IC756CDV001K-99 DV Development - Compaq True64 Op Sys Addt'l User, Korean, Version 9.9

MSI-PROD-25 Product Management Clients 25 Pack

PLC-5/1771 System 1771-DRS1 CONTROL COPROCESSOR, STATIC RAM MEMORY EXPANSION

Distributed I/O 1790-15CMCBL LDX I/O LONGER RIBBON CABLE, 15CM (LOTS OF 5)

Communications 1788-CNF CONTROLNET LOGIX DAUGHTER CARD

Operator Interface 2711-NC1 PANELBUILDER UPLOAD/DOWNLOAD CABLE

Support 9305-RSVADDCDER SUPT REINSTATEMENT CONTRACT FOR 9305RSVADDCDE

Support 9324-RLD300ENS SUPT RENEWAL CONTRACT FOR 9324RLD300EN

DeviceNet Products 2711-T10C10 PV1000 COLOR TOUCH, DNET & RS232 PRINT

RSI Software Products 9301-2SE3400ESU1 RSVIEW32 RUNTIME 1500-32K UPGRADE IN-SUPT (ES)

RSI Software Products 9371-EPCO3 RSWIRE ISA LIBRARY

Motion Control MPF-AIR-TOOL TOOL, AIR PURGE COVER INSERTION AND

2025-128-C Greyline OS, 4 Line, (20) 4MM Chars, LCD, Quick Connect, 128K Memory W/CLOCK/DATE, NEMA 4

HE693THM668 6 channel thermocouple b module for Series 90-30 with 0.1癈 resolution and bus/channel isolation.

IC670TBM002 Aux. Terminal Strip, Qty. 2 Box Style

QPJ-IBS-201 MODULE INTERBUS-S SLAVE

STXPBS332 STXi Profibus with 24VDC source output, 32 points, expandable to 8 additional modules.

20BC3P5A0AYNANA0 PowerFlex 700 AC Drive 20B

20F1AND156AN0NNNNN PowerFlex 753 AC Packaged Drive

22B-CCB PowerFlex 40 B Frame Cover Kit

140DDO36400 Quantum 開關(guān)量 DC 輸出,64點,24VDC, 6組隔離

284E-FVD2P3Z-10-CR-3 EtherNet Variable Frequency Drive

E32-ZT200 光纖檢測距離290mm對射型，中國產(chǎn)

1492-SPM1B160 MCB Supplementary Protector 16 A