Download - Introduction to electropneumatic
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KONTRAK PERKULIAHAN
1. Laporan praktikum pada tiap akhir praktikum
2. Laporan praktikum yang diakui adalah laporan praktikum yang
menggunakan tulisan tangan (handwriting)
3. Laporan praktikum berisikan tentang :
A. Diagram langkah (motion displacement diagram)
B. Electric circuit
C. Pneumatik circuit
D. Component description
4. Tugas paper (makalah) dibebankan kepada mahasiswa yang mendapatkan
nilai D dan E pada UTS dan atau UAS
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Definition
• Electropneumatic is a system / tools that is worked using the air pressure / air flow but controlled using electrical devices
Actuator : Pneumatic
Controller : Electric circuit
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Comparison
Pneumatic Electric
Complicated
Simple
Control Simplicity
Using > 1 logic valve (many devices)
1 device
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Comparison
Pneumatic Electric
Few Many Development
Logic valve Stepper module
Timer valve Counter valve
Timer Counter
Digital logic HMI connection
Fuzzy control SCADA
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Comparison
Pneumatic Electric
Slow Fast Signal delivery
Max Max
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Comparison
Pneumatic Electric
Cylinders Directional valve Logic valves Button valve Air pressure
Motors, linear motor Transistors/contactors/relays Op amps Button / switch Battery
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Pneumatic elements
Single acting cylinders Double acting cylinders Rodless cylinder Pneumatic motor
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WORKING ELEMENTS / ACTUATING DEVICES
Single / double acting cylinder
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SINGLE ACTING CYLINDER
Forcible surface
Air pressure port / supply port
Pressurized chamber
DEpressurized chamber
Exhaust port / waste port
Spring return
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Forcible surface
Air pressure port / supply port
SINGLE ACTING CYLINDER
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Forcible surface
Air pressure port / supply port + Exhaust port / waste port
Pressurized chamber
DEpressurized chamber
Spring return
DOUBLE ACTING CYLINDER
Air pressure port / supply port + Exhaust port / waste port
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Forcible surface
DOUBLE ACTING CYLINDER
Air pressure port / supply port + Exhaust port / waste port
Air pressure port / supply port + Exhaust port / waste port
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CONTROL ELEMENTS / ACTUATING DEVICES
Logic Valves / Directional valves
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Two pressure valve
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Shuttle valve
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M/n valves
M : Number of ports N : Number of direction set / position
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Valve nomenclature
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Port designation (ISO-5599-3)
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Actuation option
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Actuation option
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Actuation option
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Actuation option
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Non return valves
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Linear actuators
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Single acting direct actuating
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Double acting direct actuating
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Component designation
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Component designation
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System circuit diagram
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Solenoid principles (supply power)
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Solenoid principles (Coil & core)
When an electric current flows through a coil, a magnetic field is generated. The following applies to strengthen the magnetic field: � 1. Increasing the number of windings (1loop, 2 loop, 3 loop, etc) � 2. Increasing the strength of the current (1 A, 2A, etc) The following applies to the weaken the magnetic field: � 1. Lengthening the coil reduces the field. (the soft iron core length)
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Electropneumatic elements
Solenoid valves PE converter (Pneumatic to Electric signal converter) Magnetic proximity switch
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Solenoid valves NO
n/n valves
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Solenoid valves NC
n/n valves
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Piloted solenoid valves
n/n valves
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Piloted solenoid valves zoom
n/n valves
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Solenoid valves 5/n piloted
n/n valves
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Solenoid valves 5/n double solenoid piloted
n/n valves
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PE Converter
n/n valves
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Magnetic proximity switch
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Magnetic proximity switch
Move cylinder
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Electronic elements
Switches Relays
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Switches
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Relays
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