Transcript PNEUMATIC SYSTEM

TEKNOLOGI
ELEKTRONIK INDUSTRI
ELECTRO-PNEUMATIC
SYSTEM
CONTROL OF MULTIPLE ACTUATORS
HASLINAWATI BINTI JAMALUDDIN
ELECTRO-PNEUMATIC SYSTEM
CONTROL OF MULTIPLE ACTUATORS
AIMS:
1. Control Of Multiple Actuator
2. Struktur dan Sistem Nombor Komponen
ELECTRO-PNEUMATIC SYSTEM
CONTROL OF MULTIPLE ACTUATORS
SEQUENCE CONTROL
Peranti Pengangkat Untuk Kotak
Kotak akan bergerak atas ‘roller conveyor’ dan diangkat oleh silinder A. Silinder B
akan menolak kotak ke ‘roller conveyor’ yang kedua. Silinder B tidak akan patah
balik sehingga silinder A sampai ke kedudukan asal.
DISPLACEMENT
STEP DIAGRAMS
ELECTRO-PNEUMATIC SYSTEM
CONTROL OF MULTIPLE ACTUATORS
SEQUENCE CONTROL
DISPLACEMENT STEP DIAGRAMS / MOTION STEP DIAGRAMS
ELECTRO-PNEUMATIC SYSTEM
CONTROL OF MULTIPLE ACTUATORS
SEQUENCE CONTROL
DISPLACEMENT STEP DIAGRAMS / MOTION STEP DIAGRAMS
A+
B+
A-
B-
FIRST SIGNAL & LAST SIGNAL MESTI SAMA → 5 = 1
ELECTRO-PNEUMATIC SYSTEM
CONTROL OF MULTIPLE ACTUATORS
SEQUENCE CONTROL
DISPLACEMENT
STEP DIAGRAMS
CIRCUIT DIAGRAM
ELECTRO-PNEUMATIC SYSTEM
CONTROL OF MULTIPLE ACTUATORS
SEQUENCE CONTROL
DISPLACEMENT
STEP DIAGRAMS
CIRCUIT
DIAGRAM
ELECTRO-PNEUMATIC SYSTEM
CONTROL OF MULTIPLE ACTUATORS
SEQUENCE CONTROL
SIGNAL OVERLAP
“Signal Overlap” atau “Opposing Signal” terjadi disebabkan Directional
Control Valve yang menerima maklumat angin untuk kedua-dua ‘air pilot
signal’ mendapat selangan masa yang terlalu singkat atau pun satu silinder
yang bergerak keluar dan masuk tanpa diselangi oleh pergerakkan silinder
lain.
DISPLACEMENT STEP DIAGRAMS
ELECTRO-PNEUMATIC SYSTEM
CONTROL OF MULTIPLE ACTUATORS
SEQUENCE CONTROL
“Bench Drill”
Benda kerja diletakkan ke dalam peranti pengepit (clamping) dengan
menggunakan tangan. Cylinder pengepit 1A akan beranjak ke hadapan
apabila suis ‘Start’ ditekan. Apabila benda kerja telah dikepit, ia akan di
gerudi oleh selinder 2A dan selinder 2A akan kembali ke kedudukan asal
setelah selesai proses gerudi. Kemudian selinder 1A akan kembali ke
kedudukan asal.
DISPLACEMENT
STEP DIAGRAMS
ELECTRO-PNEUMATIC SYSTEM
CONTROL OF MULTIPLE ACTUATORS
SEQUENCE CONTROL
SIGNAL OVERLAP
DISPLACEMENT STEP DIAGRAMS / MOTION STEP DIAGRAMS
ELECTRO-PNEUMATIC SYSTEM
CONTROL OF MULTIPLE ACTUATORS
SIGNAL OVERLAP
DESIGN CIRCUIT ~ Cascade System
Rules for Applying The Cascade System
1. Definition of the sequence of movement
~ Sequence (add not / displacement)
2. Division into groups
~ Break into group such that no alphabet appear twice into group
A+
B+
B-
A-
ELECTRO-PNEUMATIC SYSTEM
CONTROL OF MULTIPLE ACTUATORS
SIGNAL OVERLAP
DESIGN CIRCUIT ~ Cascade System
3. Connecting line
~ For each group a connecting reversing switch is required
Ng = N reversing switch
G1
A+
G2
B+
B-
L1
AL2
4. Number of reversing switch
~ No of reversing switch required is equal to the nombor of group
Nrs = Ng
ELECTRO-PNEUMATIC SYSTEM
CONTROL OF MULTIPLE ACTUATORS
SIGNAL OVERLAP
DESIGN CIRCUIT ~ Cascade System
5. Position of limit switches
A+
B+
B-
A-
ELECTRO-PNEUMATIC SYSTEM
CONTROL OF MULTIPLE ACTUATORS
SEQUENCE CONTROL
SIGNAL OVERLAP :
CASCADE SYSTEM
DISPLACEMENT
STEP DIAGRAMS
ELECTRO-PNEUMATIC SYSTEM
ELEKTRO-PNEUMATIC ELEMENT
ELECTRO-PNEUMATIC SYSTEM
STRUKTUR DAN SISTEM NOMBOR KOMPONEN
CIRCUIT DIAGRAM :SENSOR SECTION
(CURRENT PATH)
- SENSOR (CAPACITIVE, INDUCTIVE,
OPTICAL, MAGNETIC)
CONTROL SECTION
- SINGLE CYCLE, CONTINUOUS
CYCLE (START & STOP), E-STOP,
TIMER, COUNTER, PRESSURE
SENSOR/PRESSURE TRANDUCERS.
POWER SECTION
- SOLENOID VALVE
NUMBERING SYSTEM :SENSOR SECTION
- LINE 1 ~ 20, RELAY K1 ~ K10
(CURRENT PATH)
CONTROL SECTION
- LINE 21 ~ 40, RELAY K11 ~ K20
POWER SECTION
- LINE 41 ~ 60
SEKIAN TERIMA
KASIH