introduction to electropneumatic
TRANSCRIPT
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
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
Comparison
Pneumatic Electric
Complicated
Simple
Control Simplicity
Using > 1 logic valve (many devices)
1 device
Comparison
Pneumatic Electric
Few Many Development
Logic valve Stepper module
Timer valve Counter valve
Timer Counter
Digital logic HMI connection
Fuzzy control SCADA
Comparison
Pneumatic Electric
Slow Fast Signal delivery
Max Max
Comparison
Pneumatic Electric
Cylinders Directional valve Logic valves Button valve Air pressure
Motors, linear motor Transistors/contactors/relays Op amps Button / switch Battery
Pneumatic elements
Single acting cylinders Double acting cylinders Rodless cylinder Pneumatic motor
WORKING ELEMENTS / ACTUATING DEVICES
Single / double acting cylinder
SINGLE ACTING CYLINDER
Forcible surface
Air pressure port / supply port
Pressurized chamber
DEpressurized chamber
Exhaust port / waste port
Spring return
Forcible surface
Air pressure port / supply port
SINGLE ACTING CYLINDER
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
Forcible surface
DOUBLE ACTING CYLINDER
Air pressure port / supply port + Exhaust port / waste port
Air pressure port / supply port + Exhaust port / waste port
CONTROL ELEMENTS / ACTUATING DEVICES
Logic Valves / Directional valves
Two pressure valve
Shuttle valve
M/n valves
M : Number of ports N : Number of direction set / position
Valve nomenclature
Port designation (ISO-5599-3)
Actuation option
Actuation option
Actuation option
Actuation option
Non return valves
Linear actuators
Single acting direct actuating
Double acting direct actuating
Component designation
Component designation
System circuit diagram
Solenoid principles (supply power)
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)
Electropneumatic elements
Solenoid valves PE converter (Pneumatic to Electric signal converter) Magnetic proximity switch
Solenoid valves NO
n/n valves
Solenoid valves NC
n/n valves
Piloted solenoid valves
n/n valves
Piloted solenoid valves zoom
n/n valves
Solenoid valves 5/n piloted
n/n valves
Solenoid valves 5/n double solenoid piloted
n/n valves
PE Converter
n/n valves
Magnetic proximity switch
Magnetic proximity switch
Move cylinder
Electronic elements
Switches Relays
Switches
Relays
