Electropneumatics Basic Level
Workbook TP 201
CD-ROM included
Festo Didactic 541090 en
541090_cover_workbook_tp201_en.indd 1
08.03.2005 13:41:05
Intended use
The Festo Didactic Learning System has been developed and produced solely for vocational and further training in the field of automation and technology. The training company and/or instructor needs to ensure that trainees observe the safety precautions specified in this workbook.. Festo Didactic hereby disclaims any legal liability for damages or injury to trainees, the training company and/or other parties, which may occur during the use/application of this equipment set other than in a training situation and unless such damages are caused by intention or gross negligence on the part of Festo Didactic.
Order No.: Status: Authors: Editor: Graphics: Layout:
541090 04/2005 M. Pany, S. Scharf Frank Ebel Doris Schwarzenberger 09/2005
© Festo Didactic GmbH & Co. KG, 73770 Denkendorf, Germany, 2005 Internet: www.festo-didactic.com e-mail:
[email protected]
The copying, distribution and utilisation of this document as well as the communication of its contents to others without express authorisation is prohibited. Offenders will be held liable for the payment of damages. All rights reserved, in particular the right to carry out patent, utility model or ornamental design registration. Parts of this documentation may be copied by the authorised user exclusively for training purposes.
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© Festo Didactic GmbH & Co. KG • 541090
Contents
Preface ______________________________________________________________ 5 Introduction__________________________________________________________ 7 Notes on safety and operation ___________________________________________ 9 Technology package for electropneumatics (TP200) ________________________ 11 Training aims of Basic Level (TP201) _____________________________________ 13 Allocation of training aims and exercises _________________________________ 15 Equipment set – Basic Level (TP201) _____________________________________ 17 Allocation of equipment and exercises ___________________________________ 21 Methodological help for the trainer ______________________________________ 23 Methodological structure of the exercises_________________________________ 25 Designation of equipment _____________________________________________ 26 Contents of the CD-ROM _______________________________________________ 27 Equipment set – Advanced Level (TP202) _________________________________ 29 Training aims – Advanced Level (TP202) __________________________________ 30
Part A – Exercises Exercise 1: Realising a sorting device ____________________________________A-3 Exercise 2: Realising a shut-off device___________________________________A-15 Exercise 3: Realising a lid press ________________________________________A-25 Exercise 4: Realising the operation of a hinged lid _________________________A-35 Exercise 5: Realising a diverting device __________________________________A-43 Exercise 6: Actuation of a stacking magazine _____________________________A-53 Exercise 7: Sorting of packages ________________________________________A-65 Exercise 8: Actuation of a sliding platform _______________________________A-73 Exercise 9: Expanding a diverting device _________________________________A-81 Exercise 10: Designing a stamping device________________________________A-91 Exercise 11: Realising a pallet loading station __________________________ A-101 Exercise 12: Eliminating a fault on the pallet loading station_______________ A-107
© Festo Didactic GmbH & Co. KG • 541090
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Contents
Part B – Fundamentals
Part C – Solutions Exercise 1: Realising of a sorting device __________________________________C-3 Exercise 2: Realising a shut-off device___________________________________C-15 Exercise 3: Realising a lid press ________________________________________C-23 Exercise 4: Realising the operation of a hinged lid _________________________C-33 Exercise 5: Realising a diverting device __________________________________C-41 Exercise 6: Actuation of a stacking magazine _____________________________C-49 Exercise 7: Sorting of packages ________________________________________C-59 Exercise 8: Actuation of a sliding platform _______________________________C-67 Exercise 9: Expanding a diverting device _________________________________C-75 Exercise 10: Designing a stamping device________________________________C-85 Exercise 11: Realising a pallet loading station ____________________________C-95 Exercise 12: Eliminating a fault on the pallet loading station _______________C-101
Part D – Appendix Organiser __________________________________________________________ D-2 Assembly technology ________________________________________________ D-3 Plastic tubing_______________________________________________________ D-4 Data sheets
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© Festo Didactic GmbH & Co. KG • 541090
Preface
Festo Didactic’s Learning System for Automation and Technology is orientated towards different training and vocational requirements and is therefore structured into the following training packages: • Basic packages to provide technology-spanning basic knowledge • Technology packages to address the major subjects of open and closed-loop technology • Function packages to explain the basic functions of automated systems • Application packages to facilitate vocational and further training based on actual industrial applications The technology packages deal with the following technologies: Pneumatics, electropneumatics, programmable logic controllers, automation using a personal computer, hydraulics, electrohydraulics, proportional hydraulics and handling technology.
© Festo Didactic GmbH & Co. KG • 541090
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Preface
The modular design of the learning system enables applications beyond the limits of the individual packages. For example, to facilitate PLC actuation of pneumatic, hydraulic and electrical drives. All the training packages are of identical structure: • Hardware • Teachware • Software • Seminars The hardware consists of didactically designed industrial components and systems. The didactic, methodological design of the Teachware is harmonised with the training hardware and comprises: • Textbooks (with exercises and examples) • Workbooks (with practical exercises, additional information, solutions and data sheets) • Overhead transparencies and videos (to create an interesting and lively training environment) Tuition and training media are available in several languages and are suitable for use both in the classroom and for self-tuition. Software is available in the form of computer training programs and programming software for programmable logic controllers. A comprehensive range of seminars dealing with the topics of the technology packages completes the range of vocational and further training available.
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© Festo Didactic GmbH & Co. KG • 541090
Introduction
This workbook is a component part of the Learning System for Automation and Technology of Festo Didactic GmbH & Co. KG. This system provides a solid basis for practice-oriented vocational and further training. Technology package TP200 is comprised exclusively of electropneumatic control systems. Basic Level TP201 is suitable for basic training in electropneumatic control technology and provides knowledge regarding the physical fundamentals of electropneumatics and the function and use of electropneumatic equipment. The equipment set enables you to construct simple electropneumatic control systems. Advanced Level TP202 focuses on further training in electropneumatic control technology. The two equipment sets enable you to construct complex combinational circuits with logic operations of input and output signals and program controls. Prerequisite for the assembly of control systems is a fixed workstation using a Festo Didactic profile plate, consisting of 14 parallel T-slots with 50 mm spacing. A shortcircuit protected power supply unit (input: 230 V, 50 Hz, output: 24 V, max. 5 A) is used for DC voltage supply. A mobile, silenced compressor (230 V, maximum 8 bar = 800 kPa) can be used for compressed air supply. Working pressure must not exceed a maximum of p = 6 bar = 600 kPa. Optimum operational reliability is achieved if the control system is operated unlubricated at a working pressure of p = 5 bar = 500 kPa. The equipment set of Basic Level TP201 is used to construct all of the complete control systems of the 12 problem definitions. The theoretical fundamentals to help you understand this collection of exercises can be found in the textbook • Electropneumatics Also available are data sheets in respect of the individual devices (cylinders, valves, measuring devices, etc.).
© Festo Didactic GmbH & Co. KG • 541090
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Introduction
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© Festo Didactic GmbH & Co. KG • 541090
Notes on safety and operation
The following advice should be observed in the interest of your own safety: • Pressurised air lines that become detached can cause accidents. Switch off supply immediately. • Do not switch on compressed air until tubing is securely connected. • Caution! Cylinders may advance automatically as soon as the compressed air is switched on. • Do not operate an electrical limit switch manually during fault finding (use a tool). • Observe general safety regulations. • With electrical limit switches you need to distinguish between two designs – Actuation from the left – Actuation from the right. • At high piston speeds, limit switches must be approached only in the designated direction of the trip cam of the cylinder. Limit switches must not be actuated from the front. • Do not exceed the permissible working pressure (see data sheets). • Only use extra-low voltage ≤ 24 V DC. • All components are equipped with 4 mm safety sockets, i.e. jack plugs. Only use cables with jack plugs for the electrical connections. • Pneumatic circuit assembly: Connect devices using the silver-metallic plastic tubing of 4mm outer diameter, plugging the tubing into the push-in fitting up to the stop; no need for securing! • Releasing of push-in fitting: The tubing can be released by pressing down the releasing ring (disconnection under pressure is not possible!) • Switch off compressed air supply and power supply prior to dismantling the circuit.
© Festo Didactic GmbH & Co. KG • 541090
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Notes on safety and operation
• The mounting plates of the devices are equipped with mounting variants A to D: Variant A, latching system For lightweight non loadable devices (e.g. directional control valves). Simply clip the device into the slot in the profile plate. Devices can be released by pressing the blue lever. Variant B, rotary system Medium weight loadable devices (e.g. actuators). These devices are clamped onto the profile plate by means of T-head bolts. Clamping and releasing is effected by means of the blue knurled nut. Variant C, screw system For heavy loadable devices rarely removed from the profile plate (e.g. Start-up valve with filter control valve). These devices are mounted by means of socket head screws and T-head bolts. Variant D, plug-in system Lightweight non loadable devices with locking pins (e.g. indicating devices). These devices are attached by means of plug-in adapters. • The data for the individual devices, as specified in the data sheets in Part D, must be observed.
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© Festo Didactic GmbH & Co. KG • 541090
Technology package for electropneumatics (TP200)
The technology package TP200 consists of numerous individual training media as well as seminars. The subject matter of this package is exclusively electropneumatic control systems. Individual components from the technology package TP200 may also form a component part of other packages.
Important elements of TP200
• • • • • •
Fixed workstation with Festo Didactic profile plate Compressor (230 V, 0.55 kW, maximum 8 bar = 800 kPa ) Equipment sets or individual components Optional training aids Practical training models Complete laboratory setups
Training documentation Textbooks
Basic Level TP201 Fundamentals of pneumatic control technology Maintenance of pneumatic devices and systems
Workbooks
Basic Lvel TP201 Advanced Level TP202
Optional Teachware
Sets of overhead transparencies and overhead projector Magnetic symbols, drawing template WBT Fluid Studio Electropneumatics Cutaway model sets 1 + 2 with storage case ® Simulation software FluidSIM Pneumatic
© Festo Didactic GmbH & Co. KG • 541090
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Technology package for electropneumatics (TP200)
Seminars P111
Fundamentals of pneumatics and electropneumatics
P121
Maintenance of and fault finding on pneumatic and electropneumatic systems
IW-PEP
Maintenance and servicing in control technology– pneumatic and electropneumatic control systems
EP-AL
Electropneumatics for vocational training
Details of venues, dates and prices can be found in the current seminar planner. Information regarding further training media is available in our catalogues and on the Internet. The Learning System for Automation and Technology is continually updated and expanded. The sets of overhead transparencies, films, CD-ROMs and DVDs as well as technical books are available in several languages.
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© Festo Didactic GmbH & Co. KG • 541090
Training aims of Basic Level (TP201)
• To familiarise yourself with the design and mode of operation of a single-acting cylinder. • To familiarise yourself with the design and mode of operation of a double-acting cylinder. • To be able to calculate piston forces according to specified values. • To familiarise yourself with the design and mode of operation of a 3/2-way solenoid valve. • To familiarise yourself with the design and mode of operation of a double solenoid valve. • To be able to select solenoid valves according to requirements. • To be able to identify and draw the various types of actuation of directional control valves. • To be able to convert solenoid valves. • To be able to explain and design an example of direct actuation. • To be able to explain and design an example of indirect actuation. • To familiarise yourself with logic functions and to design these. • To familiarise yourself with different types of end position control and to be able to select a suitable type. • To be able to calculate electrical characteristic values. • To familiarise yourself with latching circuits with different characteristics. • To be able to explain and design an electrical latching circuit with dominant switch-off signal. • To be able to design a pressure-dependent control system. • To familiarise yourself with the design and mode of operation of magnetic proximity sensors. • To familiarise yourself with displacement-step diagrams and to be able to design these for specified problem definitions. • To be able to realise a sequence control using two cylinders. • To be able to identify and eliminate errors in simple electropneumatic control systems.
© Festo Didactic GmbH & Co. KG • 541090
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Training aims of Basic Level (TP201)
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© Festo Didactic GmbH & Co. KG • 541090
Allocation of training aims and exercises
Exercise
1
2
3
•
•
4
5
6
7
8
9
10
11
12
Training aims To familiarise yourself with the design
•
and mode of operation of a singleacting cylinder. To familiarise yourself with the design
•
and mode of operation of a doubleacting cylinder. To be able to calculate piston forces according to specified values. To familiarise yourself with the design
•
•
and mode of operation of a 3/2-way solenoid valve. To familiarise yourself with the design
•
•
and mode of operation of a double solenoid valve. To be able to select a solenoid valve according to requirements. To be able to identifiy and draw the
•
•
various types of actuation of directional control valves. To be able to convert solenoid valves. To be able to explain and design an example of direct actuation. To be able to explain and design an example of indirect actuation.
• •
•
•
•
To familiarise yourself with different
•
•
•
types of end position control and to be able to select a suitable type. To familiarise yourself with logic
•
•
functions and to be able to design these. To be able to calculate electrical characteristic values
© Festo Didactic GmbH & Co. KG • 541090
•
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Allocation of training aims and exercises
Exercise
1
2
3
4
5
6
7
8
9
10
11
12
Training aims To familiarise yourself with latching circuits with different characteristics.
•
To be able to explain and design an
•
•
electrical latching circuit with dominant switch-off signal. To be able to design a pressuredependent control system.
•
To familiarise yourself with the mode
•
of operation of magnetic proximity sensors. To familiarise yourself with
•
displacement step diagrams and to be able to create these for specified problem definitions. To be able to realise a sequence control using two cylinders. To be able to detect and eliminate
•
•
errors in simple electropneumatic control systems.
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© Festo Didactic GmbH & Co. KG • 541090
Equipment set – Basic Level (TP201)
This equipment set has been compiled for basic training in electropneumatic control technology. It contains all the components required to meet the specifed training aims and can be expanded in any way with other equipment sets. The profile plate and a compressed air supply are required in addition. Equipment set – Basic Level (TP201 Order No.: 540712)
Description
Order No.
Quantity
2 x 3/2-way solenoid valve, normally closed
539776
1
5/2-way double solenoid valve
539778
2
5/2-way solenoid valve
539777
1
Blanking plug
153267
10
Double-acting cylinder
152888
2
Limit switch, electrical, actuated from the left
183322
1
Limit switch, electrical, actuated from the right
183322
1
Manifold
152896
1
One-way flow control valve
539773
4
Plastic tubing 4 x 0.75, 10 m
151496
2
Pressure sensor
539757
1
Proximity sensor, electronic
540695
2
Proximity sensor, optical
178577
1
Push-in sleeve
153251
10
Push-in T-connector
153128
20
Relay, 3-off
162241
2
Signal input, electrical
162242
1
Single-acting cylinder
152887
1
Start-up valve with filter control valve
540691
1
© Festo Didactic GmbH & Co. KG • 541090
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Equipment set – Basic Level (TP201)
Equipment set symbols
Description
Symbol
Relay, 3-off
A1
A2 A1
A2 A1
A2 Signal input, electrical
12 14
22 24
32 34
42 44
11
21
31
41
12 14
22 24
32 34
42 44
11
21
31
41
12 14
22 24
32 34
42 44
11
21
31
41
13
23
31
41
14
24
32
42
13
23
31
41
14
24
32
42
13
23
31
41
14
24
32
42
3/2-way solenoid valve, normally closed
2 1M1
1
3
1M1
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© Festo Didactic GmbH & Co. KG • 541090
Equipment set – Basic Level (TP201)
Description
Symbol
5/2-way solenoid valve
4
2
1M1 5
1
3
1M1
5/2-way double solenoid valve
4
2
1M1
1M2 5
1M1
1
3
1M2
Proximity sensor, electronic
Pressure sensor
p
Proximity sensor, optical
Limit switch, electrical
4
2
1
One-way flow control valve
© Festo Didactic GmbH & Co. KG • 541090
1
2
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Equipment set – Basic Level (TP201)
Description
Symbol
Single-acting cylinder
Double-acting cylinder
Start-up valve with filter control valve
1 2
3
Manifold
Connection elements
20
© Festo Didactic GmbH & Co. KG • 541090
Allocation of equipment and exercises
Exercise
1
2
3
4
5
6
7
8
9
10
11
12
1
1
Equipment Cylinder, single-acting
1
Cylinder, double-acting One-way flow control valve
1
3/2-way double solenoid valve, normally closed
1
5/2-way solenoid valve
1 1
1
2
2
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
3
3
1
1
1
1
(1)
1
1
1
5/2-way double solenoid valve
1 1
1
1
1
Pressure sensor
1
Limit switch, electrical
1
2
Proximity sensor, normally open conact Pushbutton, electrical, normally open contact
1
1
1
1
2
2
1
1
Pushbutton, electrical, normally
2
2
2
2
1
1
1
1
1
1
1
closed button Relay
1
1
2
2
3
1
3
3
3
3
Manifold
1
1
1
1
1
1
1
1
1
1
1
1
Start-up valve with filter control valve
1
1
1
1
1
1
1
1
1
1
1
1
Power supply unit 24 V DC
1
1
1
1
1
1
1
1
1
1
1
1
© Festo Didactic GmbH & Co. KG • 541090
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Allocation of equipment and exercises
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© Festo Didactic GmbH & Co. KG • 541090
Methodological help for the trainer
• Training aims The overall aim of this collection of exercises is the systematic design of circuit diagrams and practical assembly of a control system on a profile plate. This direct interaction of theory and practice ensures quick progress with learning. The detailed training aims are documented in the table. Actual individual training aims are allocated to each problem and major training aims are shown in brackets. • Time required The time required to work through a problem depends on the trainee’s prior knowledge. Skilled workers in the engineering and electrical fields require approximately 2 weeks. Technicians or engineers require approximately 1 week. • Components of the equipment set The book of exercises and equipment set are harmonised. For all 18 exercises you only require the components of the equipment set of Basic Level TP201. Each of the Basic Level exercises can be assembled on a profile plate. • Representation Abbreviated notation and motion diagrams are used for the representation of motion sequences and switching statuses.
© Festo Didactic GmbH & Co. KG • 541090
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Methodological help for the trainer
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© Festo Didactic GmbH & Co. KG • 541090
Methodological structure of the exercises
All 12 exercises in Part A are of identical methodological structure. The exercises are divided into: • Title • Training aims • Problem definition • Parameters as well as • Project task • Positional sketch • Worksheets The proposed solutions in Part C are divided into: • Circuit diagram • Solution description as well as • Circuit assembly • Equipment list
© Festo Didactic GmbH & Co. KG • 541090
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Designation of equipment
The designation of components in the circuit diagrams is effected in accordance with the DIN-ISO 1219-2 standard. All components of a circuit have the same main code number. Letters are assigned depending on components. Several components within a circuit are numbered consecutively. The designation of pressure ports is P and these are separately consecutively numbered. Drives: Valves: Sensors: Signal input: Accessories: Pressure strings:
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1A1, 2A1, 2A2, ... 1V1, 1V2, 1V3, 2V1, 2V2, 3V1, ... 1B1, 1B2, ... 1S1, 1S2, ... 0Z1, 0Z2, 1Z1, ... P1, P2, ...
© Festo Didactic GmbH & Co. KG • 541090
Contents of the CD-ROM
The CD-ROM supplied provides you with additional media. The contents of Part A – Exercises and Part C – Solutions are stored in the form of pdf files. The structure of the CD-ROM is as follows: • Operating instructions • Data sheets • Demo • Festo catalogue • FluidSIM® circuit diagrams • Industrial applications • Presentations • Product information • Videos
Operating instructions
Operating instructions are available for the various pieces of equipment of the technology package to assist you in the use and commissioning of the equipment.
Data sheets
The data sheets for the equipment of the technology package are available in the form of pdf files.
Demo
A demo version of the software package FluidSIM® Pneumatic is stored on the CDROM. This version is suitable for the testing of the control systems developed.
Festo catalogue
Pages from the Festo AG & Co. KG catalogue are provided for selected pieces of equipment. The representation and description of equipment in this form is intended to illustrate how such equipment is represented in an industrial catalogue. You will also find additional information here regarding the equipment.
FluidSIM® circuit diagrams
FluidSIM® circuit diagrams are stored in this directory for all of the 12 exercises in the technology package.
© Festo Didactic GmbH & Co. KG • 541090
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Contents of the CD-ROM
Industrial applications
Photos and pictures are provided of industrial applications to enable you to illustrate your own problem definitions. These can also be added to project presentations.
Presentations
Brief presentations are stored in this directory regarding the equipment of this technology package. These presentations can for instance be used to create project presentations.
Product information
This directory provides you with the product information and data sheets of Festo AG & Co. KG regarding the equipment of the technology package and is intended to explain what information and data are provided for an industrial component.
Videos
A number of videos of industrial applications complete the media for the training package. Short sequences are shown of practice-related applications.
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© Festo Didactic GmbH & Co. KG • 541090
Equipment set – Advanced Level (TP202)
This Advanced Level equipment set has been compiled for further training in pneumatic control technology. The two equipment sets (TP201 and TP202) comprise the components required for the specified training aims and can expanded in any way with other equipments sets of the Learning System for Automation and Technology. Equipment set – Advanced Level (TP202 Order No.: 540713)
Description
Order No.
Quantity
Relay, 3 off
162241
2
Signal input, electrical
162242
1
Time relay, 2 off
162243
1
Predetermining counter
162355
1
Proximity sensor, inductive
178574
1
Proximity sensor, capacitive
178575
1
EMERGENCY-STOP button
183347
1
Valve terminal with 4 valve slices (MMJJ)
540696
1
Non-return valve, piloted
540715
2
© Festo Didactic GmbH & Co. KG • 541090
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Training aims of Advanced Level (TP202)
• To describe the design and use of valve terminals • To solve sequence controls with signal overlap – solution according to group method • To solve sequence controls with signal overlap – solution with sequence chain using spring-return valves • To solve sequence control with signal overlap – solution with sequence chain using double solenoid valves (with control step) • To be able to describe and configure modes of operation (single cycle, continuous cycle, , ...) • To describe the function and use of a predetermining counter • To explain and realise an EMERGENCY-STOP FUNCTION using spring-return valves • To realise special EMERGENCY-STOP conditions: Actuators must stop during EMERGENCY-STOP • To explain the function and use of a 5/3-way solenoid valve • To describe and configure the Reset mode of operation • To carry out fault finding in complex electropneumatic circuits
30
© Festo Didactic GmbH & Co. KG • 541090
Contents
Part A – Exercises
Exercise 1: Realising a sorting device ____________________________________A-3 Exercise 2: Realising a shut-off device___________________________________A-15 Exercise 3: Realising a lid press ________________________________________A-25 Exercise 4: Realising the operation of a hinged lid _________________________A-35 Exercise 5: Realising a diverting device __________________________________A-43 Exercise 6: Actuation of a stacking magazine _____________________________A-53 Exercise 7: Sorting of packages ________________________________________A-65 Exercise 8: Actuation of a sliding platform _______________________________A-73 Exercise 9: Expanding a diverting device _________________________________A-81 Exercise 10: Designing a stamping device________________________________A-91 Exercise 11: Realising a pallet loading station __________________________ A-101 Exercise 12: Eliminating a fault on the pallet loading station_______________ A-107
© Festo Didactic GmbH & Co. KG • 541090
A-1
Contents
A-2
© Festo Didactic GmbH & Co. KG • 541090
Exercise 1: Realising a sorting device
Training aims
• To familiarise yourself with the design and mode of operation of a single-acting cylinder. • To familiarise yourself with the design and mode of operation of a 3/2-way solenoid valve. • To be able to identify and draw various types of actuation of directional control valves. • To be able to explain and design an example of direct actuation.
Problem definition
A sorting device is to be used to sort water samples according to the size of the sample bottle. Design a control system whereby this process can be carried out.
Parameters
• A single-acting cylinder is to be used. • The control of the cylinder is to be effected by means of a pushbutton. • In the event of a power failure the cylinder piston rod is to return into the retracted end position.
Project task
1. Answer the questions or carry out the exercises regarding the fundamentals of the training contents listed. 2. Draw the pneumatic and electrical circuit diagram. 3. Simulate the electropneumatic circuit diagram and check its correct functioning. 4. Compile an equipment list. 5. Carry out the pneumatic and electrical circuit assembly. 6. Check the circuit operation.
© Festo Didactic GmbH & Co. KG • 541090
A-3
Exercise 1: Realising a sorting device
Positional sketch
Sorting device
1. Pressing of a pushbutton causes the piston rod of a single-acting cylinder to push the sample bottle off the conveyor. 2. When the pushbutton is released, the piston rod is to return into the retracted end position.
A-4
© Festo Didactic GmbH & Co. KG • 541090
Exercise 1: Realising a sorting device
Exercise 1: Realising the operation of a sorting device Name:
Date:
Fundamentals: Function of pneumatic working components
Sheet 1 of 7
Pneumatic working components can be divided into two groups: • Working components using linear movement • Working components using rotary movement – Describe the function of the working components shown. Symbol 1
Symbol 2
Symbol 3
Description of function Symbol 1:
Symbol 2:
Symbol 3:
© Festo Didactic GmbH & Co. KG • 541090
A-5
Exercise 1: Realising a sorting device
Exercise 1: Realising the operation of a sorting device Name:
Date:
Fundamentals: Completing solenoid valve symbols
Sheet 2 of 7
– Complete the individual symbols with the help of the corresponding component descriptions. Description
Symbol
Directly actuated 3/2-way
2
solenoid valve, normally open, with manual override, with spring return
1
3
Pilot actuated 3/2-way solenoid
2
valve, normally closed, with manual override, with spring return
A-6
1
3
© Festo Didactic GmbH & Co. KG • 541090
Exercise 1: Realising a sorting device
Exercise 1: Realising the operation of a sorting device Name:
Date:
Fundamentals: Normal positions of directional control valves
Sheet 3 of 7
An electrically actuated 3/2-way solenoid valve has two switching positions. It can be in the normal position (unactuated) or in the switching position (actuated). In the normal position the valve can be open or closed. – Describe the effects on the motion sequence of the following application arising as a result of the different normal positions. The single-acting cylinder shown is controlled by an electrically actuated 3/2-way solenoid valve. 2 1M1
Description: Normal position closed
© Festo Didactic GmbH & Co. KG • 541090
1
2
3
1M1
1
3
Description: Normal position open
A-7
Exercise 1: Realising a sorting device
Exercise 1: Realising the operation of a sorting device Name:
Date:
Fundamentals: Direct and indirect actuation
Sheet 4 of 7
An electrically actuated solenoid valve can be actuated either directly or indirectly. – Describe the difference with the help of the following application: Electrical actuation of a spring-returned 3/2-way solenoid valve using a pushbutton. Description: Direct actuation
A-8
Description: Indirect actuation
© Festo Didactic GmbH & Co. KG • 541090
Exercise 1: Realising a sorting device
Exercise 1: Realising the operation of a sorting device Name:
Date:
Design and function of an electrical switch
Sheet 5 of 7
Switches are basically divided into pushbutton and control switch designs and perform the function of a normally open or normally closed contact or changeover switch. – Describe the design and function of the switches shown. Symbol 1
Symbol 2
3 4
Symbol 3
1
2 2
4 1
Description: Design/Function
© Festo Didactic GmbH & Co. KG • 541090
A-9
Exercise 1: Realising a sorting device
Exercise 1: Realising the operation of a sorting device Name:
Date:
Fundamentals: Mode of operation of different valve types
Sheet 6 of 7
Electrically actuated directional control valves are switches with the help of solenoids. Basically, these can be divided into two groups: • Spring-return solenoid valves • Double solenoid valves – Describe the differences between the two groups with regard to function and behaviour in the event of power failure. Valve type
Mode of operation
Spring-return valve
Double solenoid valve
A-10
© Festo Didactic GmbH & Co. KG • 541090
Exercise 1: Realising a sorting device
Exercise 1: Realising the operation of a sorting device Name:
Date:
Fundamentals: Port designations of valves
Sheet 7 of 7
In order to prevent incorrect tubing up of directional control valves, the valve ports (working and pilot lines) are identified in accordance with ISO 5599, both on the valve itself and in the circuit diagram. – Describe the meaning and function of the designations below. Designation
Meaning, function
3
12
10
© Festo Didactic GmbH & Co. KG • 541090
A-11
Exercise 1: Realising a sorting device
Exercise 1: Realising the operation of a sorting device Name:
Date:
Completing the pneumatic and electrical circuit diagram
Sheet 1 of 1
– Complete the pneumatic and electrical circuit diagram for the sorting device.
2
1
3
Pneumatic circuit diagram +24 V
1
0V
Electrical circuit diagram
A-12
© Festo Didactic GmbH & Co. KG • 541090
Exercise 1: Realising a sorting device
Exercise 1: Realising the operation of a sorting device Name:
Date:
Compiling the equipment list
Sheet 1 of 1
Apart from the circuit diagram, comprehensive project documentation also requires an equipment list. – Compile the equipment list by entering the required equipment in the table below. Quantity
Description
Equipment list
© Festo Didactic GmbH & Co. KG • 541090
A-13
Exercise 1: Realising a sorting device
A-14
© Festo Didactic GmbH & Co. KG • 541090
