Download E-books Electropneumatics. Basic Level PDF

By G. Prede, D. Scholz

Язык английский. В учебнике приведены терминология, основные понятия, графическое обозначение элементов электропневмоавтоматики, рассматриваются конструкция, принцип действия и методика расчета электрических преобразователей сигналов и датчиков сигналов.
Описаны конструкции и даны характеристики электропневмораспределителей, свободно программируемых контроллеров и исполнительных устройств систем электропневмоавтоматики. Изложены рекомендации по выбору, расчету и проектированию электропневматических систем управления технологическим оборудованием. Даны численные примеры расчета основных элементов.

Оглавление

Contents ............................................................................................ 1
Preface ............................................................................................ 4
Chapter 1 – advent ...................................................................... 5
1.1 purposes of pneumatics............................................................... 6
1.2 simple keep an eye on engineering phrases ....................................................... 8
1.3 Pneumatic and electropneumatic controllers ................................. 14
1.4 benefits of electropneumatic controllers .................................. 17
Chapter 2 – basics of electric technology........................ 19
2.1 Direct present and alternating present ............................................. 20
2.2 Ohm's Law...................................................................................... 22
2.3 functionality of a solenoid .................................................................... 24
2.4 functionality of a capacitor ................................................................... 26
2.5 functionality of a diode......................................................................... 27
2.6 dimension in electric circuits .................................................. 28
Chapter three – parts and assemblies within the electric sign regulate section.................................... 35
3.1 strength offer unit ........................................................................... 36
3.2 Push button and regulate switches................................................... 37
3.3 Sensors for measuring displacement and strain ....................... 39
3.4 Relays and contactors.................................................................... 49
3.5 Programmable good judgment controllers...................................................... 55
3.6 total constitution of the sign processing half ............................... 56
Chapter four – Electrically actuated directional keep watch over valves...........59
4.1 capabilities ........................................................................................60
4.2 building and mode of operation...............................................62
4.3 forms and pneumatic functionality facts ........................................74
4.4 functionality info of solenoid coils.................................................83
4.5 electric connection of solenoid coils ............................................86
Chapter five – constructing an electropneumatic keep an eye on system........89
5.1 technique for constructing a keep an eye on system.....................................90
5.2 venture layout approach ................................................................92
5.3 pattern program: undertaking layout of a lifting gadget .....................96
5.4 process for enforcing the keep an eye on system............................109
Chapter 6 – Documentation for an electropneumatic regulate system................................113
6.1 functionality diagram..........................................................................115
6.2 functionality chart ...............................................................................119
6.3 Pneumatic circuit diagram.............................................................127
6.4 electric circuit diagram...............................................................144
6.5 Terminal connection diagram........................................................158
Chapter 7 – protection measures for electropneumatic keep watch over systems..............................169
7.1 hazards and protecting measures ................................................170
7.2 influence of electrical present at the human physique ................................172
7.3 Measures to guard opposed to injuries with electrical present .........175
7.4 keep watch over panel and indicating elements..........................................176
7.5 keeping electric equipment
against environmental influences..................................................181
Chapter eight – Relay regulate structures ................................................. 185
8.1 purposes of relay keep watch over platforms in electropneumatics ......... 186
8.2 Direct and oblique control............................................................. 186
8.3 good judgment operations ........................................................................... 189
8.4 sign garage .............................................................................. 192
8.5 hold up ............................................................................................ 198
8.6 series keep watch over with sign storage
by double solenoid valves ............................................................ 199
8.7 Circuit for comparing keep watch over parts ......................................... 208
8.8 series regulate for a lifting gadget ............................................ 211
Chapter nine – layout of modern
electropneumatic keep an eye on platforms ............................. 235
9.1 tendencies and advancements in electropneumatics.......................... 236
9.2 Pneumatic drives.......................................................................... 237
9.3 Sensors ........................................................................................ 245
9.4 sign processing ......................................................................... 246
9.5 Directional regulate valves ............................................................. 247
9.6 smooth install concepts........................................................ 251
9.7 lowering tubing attempt .................................................................. 261
9.3 decreasing wiring effort................................................................... 261
9.9 Proportional pneumatics............................................................... 270
Appendix ........................................................................................ 279
Index.................................................................................................... 281
Standards............................................................................................ 291

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