【正文】 .............................. 36 變頻調(diào)速起重機(jī)控制系統(tǒng)的設(shè)計(jì) ....................................... 37 調(diào)速系統(tǒng)的基本要求和 I/O 分配 ............................... 37 電氣控制系統(tǒng)原理圖 ................................................. 42 各機(jī)構(gòu)的安全保護(hù)和檢測(cè) .................................................. 45 起升機(jī)構(gòu)安全保護(hù)及檢測(cè) .......................................... 45 小車行走機(jī)構(gòu)安全保護(hù)及檢測(cè) .................................. 45 壓電安全保護(hù)及檢測(cè) ................................................. 46 第 5 章 橋式起重機(jī)系統(tǒng)軟件設(shè)計(jì) ................................................... 47 西門子 P LC 軟件的編程及其編程 ...................................... 47 P LC 編程軟件概述 ..................................................... 47 程序設(shè)計(jì) ................................................................... 48 觸摸屏的軟件設(shè)計(jì) ............................................................. 54 組態(tài)軟件 .................................................................... 54 觸摸屏界面設(shè)計(jì) ......................................................... 55 抗干擾措施 ......................................................................... 56 結(jié) 論 ............................................................................................. 58 致 謝 ............................................................................................. 59 參考文獻(xiàn) ......................................................................................... 60 V CONTENTS ABS TRAC T ........................................................................................I ABS TRAC T ...................................................................................... II Chapter 1 The introduction ............................................................... 1 The meaning of the title ......................................................... 1 The devdlopment situation at hoem and abroad .................... 2 Design of main content .......................................................... 6 Chapter 2 F requency control of motor speed control principle ............ 7 Inverter speed regulation principle ......................................... 7 Under the fundamental frequency control of motor speed 8 Above fundamental frequency control of motor speed ... 8 Inverter.................................................................................. 9 Inverter type ................................................................. 9 The uss of transducer .................................................... 9 Basic institutions of the inverter ................................. 10 Frequency co nverter control circuit ............................ 10 F requency co ntrol of motor speed control method ................ 12 Constant voltage frequency ratio control ..................... 12 Ve ctor control............................................................. 12 Revolut ional S lip control............................................ 13 VI Logarithmic control level ........................................... 13 S eries resistance frequency converter speed regulation ........ 14 Chapter 3 bridge crane frequency speed control system design .......... 16 The structure of bridge crane ............................................... 16 The design scheme ............................................................... 17 C rane design requirements ................................................... 20 Motor, inverter and auxiliary parts ....................................... 22 .......................................................................... 22 ....................................................................... 24 ............................................................................ 28 Chapter 4 Application of P LC, frequency converter control system ... 29 O verview of P LC and its position .................................. 29 S ummary of P LC ........................................................ 29 The architec ture o f the P LC ........................................ 31 The selectio n of P LC and its characteristics ......................... 34 Twido and S iemens S7200 .......................................... 34 Two kinds of P LC selection ........................................ 36 Variable frequency speed control system design ................... 37 The essentia l requirement of governing system ........... 37 The principle diagram of the system ........................... 42 S ecurity, protection and detection ........................................ 45 Hoisting mec hanism AnQ un, test ................................ 45 walk s security protection and test anization ...... 45 P iezoelectric security protection and test .................... 46 Chapte r 5 Bridge crane system software design ............................... 47 P LC software programming and programming ...................... 47 S ummary of the P LC programming software ............... 47 VII The program design .................................................... 48 Touch screen software design ............................................... 54 Configuration software ............................................... 54 Touch screen interface design ..................................... 55 Anti interference measures ................................................... 56 CONDUS ION ................................................................................... 58 ACKNOWLEDGEMEN T .................................................................. 59 REF ERENC ES .................................................................................. 60 1 第 1 章 緒論 橋式起重機(jī)是現(xiàn)代生產(chǎn)工業(yè)比不可少的重型運(yùn)輸機(jī)械，得到了廣泛的應(yīng)用。變頻器調(diào)速技術(shù)越來越被廣泛的應(yīng)用于各個(gè)領(lǐng)域，特別是應(yīng)用于一些重型機(jī)械中提高了這些機(jī)械的整體性能，能夠解決系統(tǒng)中存在的諸多缺陷。傳統(tǒng)的橋式起重機(jī)采用的是轉(zhuǎn)子串聯(lián)電阻的方式經(jīng)行對(duì)橋式起重機(jī)的控制。 I 基于 PLC 控制的變頻調(diào)速在橋式起重機(jī)中的應(yīng)用論文 摘 要 橋式起重機(jī)是一種常用的貨