F3SP21-0N

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描述

F3SP21-0N

因目前變頻器在工業(yè)生產(chǎn)中日益廣泛的應(yīng)用,所以了解變頻器的結(jié)構(gòu),主要器件的電氣特性和一些常用參數(shù)的作用及其常見(jiàn)故障對(duì)于實(shí)際工作越來(lái)越重要。今天小編就帶著大家來(lái)了解一下關(guān)于變頻器控制電路的一些小知識(shí)。

? ? 給異步電動(dòng)機(jī)供電(電壓、頻率可調(diào))的主電路提供控制信號(hào)的網(wǎng)絡(luò),稱為控制回路,控制電路由頻率,電壓的運(yùn)算電路,主電路的電壓,電流檢測(cè)電路,電動(dòng)機(jī)的速度檢測(cè)電路,將運(yùn)算電路的控制信號(hào)進(jìn)行放大的驅(qū)動(dòng)電路,以及逆變器和電動(dòng)機(jī)的保護(hù)電路等組成。控制回路有開(kāi)環(huán)和閉環(huán)的區(qū)別。無(wú)速度檢測(cè)電路為開(kāi)環(huán)控;在控制電路增加了速度檢測(cè)電路,即增加速度指令,可以對(duì)異步電動(dòng)機(jī)的速度進(jìn)行更精確的閉環(huán)控制。
? ? 逆變器控制電路中的保護(hù)電路,可分為逆變器保護(hù)和異步電動(dòng)機(jī)保護(hù)兩種,保護(hù)功能如下:
? ? 逆變器保護(hù)
? ? ①瞬時(shí)過(guò)電流保護(hù),用于逆變電流負(fù)載側(cè)短路等,流過(guò)逆變電器回件的電流達(dá)到異常值(超過(guò)容許值)時(shí),瞬時(shí)停止逆變器運(yùn)轉(zhuǎn),切斷電流,變流器的輸出電流達(dá)到異常值,也得同樣停止逆變器運(yùn)轉(zhuǎn)。
? ? ②過(guò)載保護(hù),逆變器輸出電流超過(guò)額定值,且持續(xù)流通超過(guò)規(guī)定時(shí)間,為防止逆變器器件、電線等損壞,要停止運(yùn)轉(zhuǎn),恰當(dāng)?shù)谋Wo(hù)需要反時(shí)限特性,采用熱繼電器或電子熱保護(hù),過(guò)載是由于負(fù)載的GD2(慣性)過(guò)大或因負(fù)載過(guò)大使電動(dòng)機(jī)堵轉(zhuǎn)而產(chǎn)生。
? ? ③再生過(guò)電壓保護(hù),應(yīng)用逆變器使電動(dòng)機(jī)快速減速時(shí),由于再生功率使直流電路電壓升高,有時(shí)超過(guò)容許值,可以采取停止逆變器運(yùn)轉(zhuǎn)或停止快速的方法,防止過(guò)電壓。
? ? ④瞬時(shí)停電保護(hù),對(duì)于毫秒級(jí)內(nèi)的瞬時(shí)斷電,控制電路工作正常。但瞬時(shí)停電如果達(dá)數(shù)10ms以上時(shí),通常不僅控制電路誤動(dòng)作,主電路也不供電,所以檢測(cè)出后使逆變器停止運(yùn)轉(zhuǎn)。
? ? ⑤接地過(guò)電流保護(hù),逆變器負(fù)載接地時(shí),為了保護(hù)逆變器,要有接地過(guò)電流保護(hù)功能。但為了保證人身安全,需要裝設(shè)漏電保護(hù)斷路器。
? ? ⑥冷卻風(fēng)機(jī)異常,有冷卻風(fēng)機(jī)的裝置,當(dāng)風(fēng)機(jī)異常時(shí)裝置內(nèi)溫度將上升,因此采用風(fēng)機(jī)熱繼電器或器件散熱片溫度傳感器,檢測(cè)出異常后停止逆變電器工作。

產(chǎn)品承諾:
保?證?全新原裝進(jìn)口,
保?證?安全準(zhǔn)時(shí)發(fā)貨,
保?證售后服務(wù)質(zhì)量,
優(yōu)勢(shì)價(jià)格,大量現(xiàn)貨。

主營(yíng)DCS系統(tǒng)配件
機(jī)器人系統(tǒng)配件
大型伺服系統(tǒng)配件
品牌:ABB???,AB??,GE,FOXBORO,本特利,英維思,伍德沃德,西屋,瑞恩,施耐德,西門子,摩托羅拉,安川。力士樂(lè)。ACSO,橫河等進(jìn)口品牌。 專業(yè)銷售進(jìn)口DCS? PLC系統(tǒng)備件模塊
Triconex?Siemens?Yaskawa?ABB?GE?Ovation?AB?Foxboro?Motorola?Schneider?XYCOM?KUKA
? 專業(yè)銷售進(jìn)口DCS? PLC系統(tǒng)備件模塊 15天包退換 一年質(zhì)保 大量現(xiàn)貨? 國(guó)內(nèi)實(shí)力庫(kù)存商家

MEGA-DRIVE VACUUM PULL ROLL P569-137

MEGA-DRIVE VACUUM PULL ROLL P569-137 strt

EXTRUDER ROLL ASSYMBLY 92″

SANDVIK STAINLESS STEEL BELT 1200SA AISI 301

KAYABA HYDROSTAR MRH-270 HYDRAULIC MOTOR

SCHEERER BEARING NCF-3064-V C3

TIMKIN HM265049TD BEARING

TIMKIN ROLLER BEARING LL483449

INA SL18 2984 CYLINDRICAL ROLLER BEARING 16 1/2″ ID

DODGE TDT9 25.66:1

BRACKETT GEIGER WSA AUTOMATIC CLEANING FILTER

BUHLER 2 WAY DIVERTER 7″ VALVE 120VAC AUKD-94108-81

CONSOLIDATED BEARINGS NJ 248 MA C3 CYLIDRICAL ROLLER

INA SL18 2968 C3 CYLINDRICAL ROLLER BEARING

GOODYEAR HOT STOCK WITH WATER POLY BELT 72″ X 200′ NEW

ALLEN BRADLEY AC SERVO CONTROLLER 1391B-ESAA22-AQ?B

FEDERAL PACIFIC FH220CFMD-1 220 KVA 460V TRANSFORMER

GOOD YEAR HOT STOCK WATER BELTING 72X200

picture easel back machine craft automatic custom built

REEVES MOTO DRIVE 3035031640YN B342 5HP

RELIANCE ELECTRIC RECTIFIER ASSEMBLY 86466-92RC

SPENCER VACUME PRODUCER M36105D4 1600 CFM

FAG BEARING 539553 18″ 8197401

TEXTRON CONE DRIVE MU60-3 280:1

KENCO MAGNA SITE MAGNETIC LIQUID LEVEL GAUGE KMLG-C-120

ALLEN BRADLEY SYSTEM MODULE 1394-SJT05-C-RL 5KW ser A

WOODS VARIABLE SHEAVE PULLEY MCS-13Y 2 1/8 40HP

KICE DUST COLLECTOR PULSE 16 BAG VS16-4

GOOD YEAR HOT STOCK WATER BELTING 72X140

TENOR UNIDIRECTIONAL DRIVE CONTROL UNIT 250-7-0550 L

ALLEN BRADLEY SCANNER HEAD 2755-L9RD SER D

WILLETT 3170 PRINTING SYSTEM LABELER

ALLEN BRADLEY AC SERVO MOTOR 1326AB-B530E-21?-K5

DEUBLIN DUOFLOW CARTRIDGE WATER UNION 6300-002-327

SCHEERER BEARING NJ-2328-VH SL19 2328 C3

SEW EURODRIVE VARI SPEER REDUCER 87D26DT90LH 81.92:1

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Hauck fiberglass Fan Model TBAB9 090 310 F3 40 hp

DARALI CYCLOIDAL REDUCER NEW

Sumitomo SM-CYCLO gear drive box EHYJMSC4145-Y1-?88

Century R A E liquid chiller water fluid used

MARTIN LOCKNUT HMS3084

ALLEN BRADLEY CONSTANT TORQUE AC DRIVE 1336-B003-EAD-S?1

GE DRIVE DV-300 6KDV3800Q2B25D4

IAP 26P CL50 ARR1 24000CFM

CINCINNATI FAN RBE-19 60 HP MOTOR

ALLEN BRADLEY AC SERVO MOTOR 1326AB-B520E-21

GOOD YEAR CONVEYOR BELT 40X200

SKF NJG 2330 VH C3 BEARING SL19 2330 C3

EMERSON DX-6200 POSITIONING SERVO DRIVE

SEW EURODRIVE K87AM182 49.16:1 4690 TORQUE

VIKING PUMP K4124A 2″ T

Almco NO LONGER AV

LASERTECHNICS BLAZER 6000

PCI WEDECO OZONE MONITOR LC400

SKF CYLINDRICAL ROLLER BEARING NU 1048 MA

PARIS HAT SHAPER

RELIANCE ELECTRIC AC DRIVE GV3000/SE

B & D WINSMITH 14CVD 152:1

ITT A-C PUMP 2000 SERIES 15 HP 2X1.5X9

GOOD YEAR HOT STOCK WATER BELTING 72X100

SEW EURODRIVE RF40LP56 ROTO-FLEX ROTARY GEAR LOCK

INGERSOLL RAND PUMP TYPE HC 10 HP

KOLLMORGEN GOLDLINE BRUSHLESS SERVOMOTOR M-605-B-A9-260

SEW EURODRIVE SNUGGLER FA80DT90L4BM62H?R 190.42:1

ALLEN BRADLEY AC DRIVE ULTRA 3000i 2098-DSD-075X

GOOD YEAR HOT STOCK WATER BELTING 54X150

GOOD YEAR HOT STOCK WATER BELTING 60X127

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TAPE CASE SEALER WORKHORSE RM3-FCS

Rosemount 1151DP5E22SPL4B?4ML

ALLEN BRADLEY 1772-LH PROCESSOR INTERFACE MODULE

ALLEN BRADLEY PLC-2 MINI PROCESSOR 1772LN3

ALLEN BRADLEY PANEL VIEW TERMINAL 2711-KC1 SER C

Kenco Taber Teledyne punch press 5 ton

Powermatic multi spindle drill model 1150

RELIANCE ELECTRIC I/O PROCESSOR MODULE 45C200A NEW

ALLEN BRADLEY DH PLUS COMM INTERFACE MODULE 1785-KE B

ALLEN BRADLEY DH PLUS COMM INTERFACE MODULE 1785-KE D

REEVES MOTOR DRIVE SIZE 222 3HP

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PARKER HYDRAULIC PUMP PVP3320R20 2000 PSI

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DOVER FLEXO P3 DFE TENSIONER

BERSTORF EXTRUDER GEAR 42972274.01 Z68 NEW

BERSTORF EXTRUDER GEAR 62853199.07 Z68 NEW

MARTIN GEAR SC3120 NEW

Chatillon HST-25 tester used

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TOLEDO SCALE 2185

FLOWSERVE ACUATOR B200D

RELIANCE ELECTRIC R-NET PROCESSOR 45C202A

ALLEN BRADLEY DRIVE IN 1305-BA09A SERIES C

GORMAN RUPP PUMP GHS2NK4-B

WARD LEONARD JOSLYN CLARK CONTACTOR 5DP4-5051-11

CONTINENTAL DISC CORP CFC-V 24″ RUPTURE DISC 316

CONTINENTAL DISC CORP CFC-V-G 24″ RUPTURE DISC 316

SKF 23036C4/W33

ALLEN BRADLEY ANALOG OUTPUT 1771-OFC05

ALLEN BRADLEY ADJUST FREQUENCY AC MOTOR DRIVE 1333-YAA

NEXEN HORTON CLUTCH SEM-600A ELEMENT 1.125 BORE

ROSEMOUNT PRESSURE TRANSMITTER 1151DP3J12M1B1

PARKER BAYSIDE PLANETAR SERVO GEARHEAD PS180-016-SH

RELIANCE RECTIFIER STACK 86466-74D

STI VALUSCAN VS6500

GORMAN-RUPP PUMP GHS2NK3-B 38344-501

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HECO SPEED REDUCER 16CF1-45-4

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NASH HYTOR VACUUM PUMP AL673 ALLIS CHALMERS MOTOR

ALLEN BRADLEY ACCU SORT ADAPTA SCAN 2755-SN5

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8.5″ x 7″ WAESCHLE COPERION ROTARY VALVE ZDD 250.1/5GG

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PLC模塊,可編程控制器,CPU模塊,IO模塊,AI模塊,通訊模塊。AB/施耐德/ABB/GE/本特利/西屋/英維斯/霍尼韋爾/黑馬/FU克斯波羅

15天包退換 一年質(zhì)保 大量現(xiàn)貨? 國(guó)內(nèi)實(shí)力庫(kù)存商家


選擇深圳長(zhǎng)欣,選擇放心,售后無(wú)憂大量現(xiàn)貨,當(dāng)天順豐發(fā)貨!
主營(yíng):本特利,英維思,伍德沃德,福克斯波羅、西屋、瑞恩、施耐德莫迪康、ABB、AB、西門子、摩托羅拉、GE發(fā)那科、安川、博世力士樂(lè),ACSO,力士樂(lè)等各大品牌的DCS系統(tǒng)配件,機(jī)器人系統(tǒng)配件,大型伺服系統(tǒng)備件。

先介紹幾點(diǎn)經(jīng)驗(yàn)。
1、先通讀一遍“系統(tǒng)手冊(cè)”(不管能不能看懂,先了解個(gè)大概,以便學(xué)習(xí)編程時(shí)查找);
2、由位控邏輯入手,逐漸增加定時(shí)、計(jì)數(shù)等條件,把或、與、非關(guān)系理順;
3、進(jìn)而練習(xí)整數(shù)運(yùn)算、實(shí)數(shù)運(yùn)算、類型轉(zhuǎn)換;
4、量程轉(zhuǎn)換、PID調(diào)節(jié)回路的建立及P、I、D參數(shù)的理解(最好是有個(gè)物理回路驗(yàn)證,比如變頻器+電機(jī)+測(cè)速傳感器);
5、循環(huán)、順序、跳轉(zhuǎn)等程序控制(盡量避免跳轉(zhuǎn),非跳不可時(shí)也是跳的越近越好);
6、中斷、通訊、位置控制....

本人以ABB工業(yè)機(jī)器人配件DSQC系列和Motorola MVME系列,GE 卡件 模塊 驅(qū)動(dòng)器系列為主攻。各位電工朋友可根據(jù)自己的條件選擇適合自己的PLC品牌,由于PLC的基本框架大同小異,學(xué)會(huì)一種至于其它的學(xué)習(xí)起來(lái)也就簡(jiǎn)單了。