Fakulti Kejuruteraan Mekanikal dan Pembuatan AMALAN KEJURUTERAAN MEKANIKAL II (BDA 1811) Title : Electro-Pneumatic Practice I Learning Outcomes: Upon completion this task, students should be able to : a) Draw a basic electro-pneumatic circuit, install and test run it to move an actuator. b) Identify and operate a few types of electro-pneumatic components. c) Install the serial and parallel electrical circuits for OR/ AND functions. Task : Design the electro-pneumatic control circuit for the following operations : a) Press switch A to extends a cylinder piston and press switch C to retracts it. b) Press either switch A or B will extend a cylinder piston. Then, it will be automatically retracted when touching a limit switch. c) Press switch A will extends a cylinder piston. It will be retracted if a sensor detect it end while switch B is pressed. *Use a 5/2 way DCV double solenoids. UNIVERSITI TUN HUSSEIN ONN MALAYSIA 86400 Parit Raja, Batu Pahat, Johor Darul Ta’zim.
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Fakulti Kejuruteraan Mekanikal dan Pembuatan
AMALAN KEJURUTERAAN MEKANIKAL II (BDA 1811)
Title : Electro-Pneumatic Practice I
Learning Outcomes:
Upon completion this task, students should be able to :
a) Draw a basic electro-pneumatic circuit, install and test run it to move an
actuator.
b) Identify and operate a few types of electro-pneumatic components.
c) Install the serial and parallel electrical circuits for OR/ AND functions.
Task :
Design the electro-pneumatic control circuit for the following operations :
a) Press switch A to extends a cylinder piston and press switch C to retracts it.
b) Press either switch A or B will extend a cylinder piston. Then, it will be
automatically retracted when touching a limit switch.
c) Press switch A will extends a cylinder piston. It will be retracted if a sensor detect
it end while switch B is pressed.
*Use a 5/2 way DCV double solenoids.
UNIVERSITI TUN HUSSEIN ONN MALAYSIA86400 Parit Raja, Batu Pahat, Johor Darul Ta’zim. http://www.uthm.edu.my
Name and sketch the related electro-pneumatic symbols :
a)
b)
c)
Sketch the related Pneumatic and Electrical Circuits :
a)
b)
c)
Fakulti Kejuruteraan Mekanikal dan Pembuatan
AMALAN KEJURUTERAAN MEKANIKAL II (BDA 1811)
Title : Electro-Pneumatic Practice II
Learning Outcomes:
Upon completion this task, students should be able to :
a) Draw, install and test run the memory circuits.
b) Identify and operate a few types of electro-pneumatic components including
relay and its contactors.
Task :
Design an electro-pneumatic control circuits for the following operations :
a) Press switch A to extend a cylinder piston, while it will retract if
switch A is released.
b) Press switch A to extend a cylinder piston, and it will be retracted once
a switch B is pressed.
c) Press switches A and B to extend a cylinder piston. The piston will be
retracted if switch C is pressed or limit switch detect the piston end.
Once a piston move to extend, a green LED will be ON. Then, a red
LED will be ON when the piston reach the maximum extend position.
* Use 5/2 way DCV single solenoid with spring return.
UNIVERSITI TUN HUSSEIN ONN MALAYSIA86400 Parit Raja, Batu Pahat, Johor Darul Ta’zim. http://www.uthm.edu.my
Name and sketch the related pneumatic and electrical component symbols :
a)
b)
c)
Sketch the related Pneumatic and Electrical circuits :
a)
b)
c)
Fakulti Kejuruteraan Mekanikal dan Pembuatan
AMALAN KEJURUTERAAN MEKANIKAL II (BDA 1811)
Title : Electro-Pneumatic Practice III
Learning Outcomes:
Upon completion this task, students should be able to :
a) Draw, install and test run an electro-pneumatic circuits for multiple
cylinders with sequence motion.
Task :
Design an electro-pneumatic control circuits using two pistons for the following
operation :
Press switch A to initiate extend of piston A and switch on a green LED. Fully extend of
piston A will initiate extend of piston B. Piston A will retract to an initial position if
piston B was fully extended. Once piston A was fully retracted, a red LED will be
switching ON while piston B start to retract.
Use two 5/2 way DCV single solenoid with spring return
Use two 5/2 way DCV double solenoid
Write the Sequen Motion :
UNIVERSITI TUN HUSSEIN ONN MALAYSIA86400 Parit Raja, Batu Pahat, Johor Darul Ta’zim. http://www.uthm.edu.my
Draw the Step Displacement Diagram for this operation :
Name and sketch the related pneumatic and electrical sysmbols :
Sketch the Pneumatic & Electrical circuits :
Fakulti Kejuruteraan Mekanikal dan Pembuatan
AMALAN KEJURUTERAAN MEKANIKAL II (BDA 1811)
Title : Electro-Pneumatic Practice IV
Learning Outcomes:
Upon completion this task, students should be able to :
a) Draw, install and test run the electro-pneumatic operation using an electrical
timer dan counter.
Task :
Install and test the following circuits :
a) (i)
Electro-pneumatic circuit with a ‘Time Delay ON’ timer
24V
13 17 S1 T1
14 18
A1 5 seconds
T1 H1 A2
0V
24V
15 17 S1 T1
16 18
A1 5 seconds
T1 H1 A2
0V
UNIVERSITI TUN HUSSEIN ONN MALAYSIA86400 Parit Raja, Batu Pahat, Johor Darul Ta’zim. http://www.uthm.edu.my
(ii)
Electro-pneumatic circuit with a ‘Time Delay OFF’ timer
b)
Electro-pneumatic circuit with an electrical counter
24V
17 17 S2 S1 C1
18 18
A1 R1 5 seconds
C1 H1 A2
R2
0V
Fakulti Kejuruteraan Mekanikal dan Pembuatan
AMALAN KEJURUTERAAN MEKANIKAL II (BDA 1811)
Title : Pneumatic Practice I
Learning Outcomes:
Upon completion this task, students should be able to :
a) Draw a basic pneumatic circuit, install and test run it to move an actuator.
b) Identify and operate a few types of pneumatic components.
c) Install the serial and parallel circuits for OR/ AND functions.
Task :
Design a pneumatic control circuit for the following operations. For each question, name
the related pneumatics components involved.
a) Presses switch A to extend a cylinder piston and press switch B to retract it.
b) Press either switch A or B will extend a cylinder piston. Then, it will be
automatically retracted when touching a limit switch.
c) Press switch A and B will extend a cylinder piston. It will be retracted if switch C
is pressed.
*Use a 5/2 way DCV double pilots.
UNIVERSITI TUN HUSSEIN ONN MALAYSIA86400 Parit Raja, Batu Pahat, Johor Darul Ta’zim. http://www.uthm.edu.my
Fakulti Kejuruteraan Mekanikal dan Pembuatan
AMALAN KEJURUTERAAN MEKANIKAL II (BDA 1811)
Title : Pneumatic Practice II
Learning Outcomes:
Upon completion this task, students should be able to :
a) Use time delay valve to control double acting cylinder.
Task :
To design a pneumatics control system for the purpose of sticking components have to
undergo these operations.
Presses switch A to extend the double acting cylinder. The extension of the cylinder will
allow the two components to be stick together. Cylinder will remain at the extension
condition for 6 seconds to allow the glue to become completely dry before the cylinder
can retract. The control system restart only after the cylinder is totally retracted for 5
seconds.
Design a pneumatic control circuit and name the related pneumatics components
involved for the following operations.
UNIVERSITI TUN HUSSEIN ONN MALAYSIA86400 Parit Raja, Batu Pahat, Johor Darul Ta’zim. http://www.uthm.edu.my
Fakulti Kejuruteraan Mekanikal dan Pembuatan
AMALAN KEJURUTERAAN MEKANIKAL II (BDA 1811)
Title : Pneumatic Practice III
Learning Outcomes:
Upon completion this task, students should be able to :
a) Draw, install and test run a pneumatic circuit for multiple cylinders with
sequence motion.
Task :
Design a pneumatic control circuit using two pistons for the following operation:
Press switch A to initiate extend of piston A. Fully extend of piston A will initiate extend
of piston B. Piston A will retract to an initial position if piston B was fully extended.
Once piston A was fully retracted, piston B will start to retract.
a) Write the sequence motion.
b) Draw the displacement step diagram.
c) Name the related pneumatics components involved.
d) Sketch the pneumatics circuit.
e) Install and test run the system.
Answer the questions in two following conditions.
Use two 5/2 way DCV double pilot.
Use two 5/2 way DCV single pilot with spring return.
UNIVERSITI TUN HUSSEIN ONN MALAYSIA86400 Parit Raja, Batu Pahat, Johor Darul Ta’zim. http://www.uthm.edu.my
Fakulti Kejuruteraan Mekanikal dan Pembuatan
AMALAN KEJURUTERAAN MEKANIKAL II (BDA 1811)
Title : Hydraulics Practise I
Learning Outcomes:
Upon completion this task, students should be able to :
d) Understand a hydraulic control system
e) Draw and install pure hydraulic circuit to control the movement a single
acting cylinder using 4/2 directional control valve
Task :
1) Draw, install and commission a pure hydraulic control circuit to move a double
acting cylinder by pressing a starting lever A or a push button A. Use the following
requirements
a. 1 unit 4/2 way directional control single lever operated spring returned
b. 1 unit pressure relief valve set at 40 bar.
c. the cylinder speed 20cm/sec.
2) Record the gauge pressures at the inlet port and oulet ports of the directional
control valve during the cylinder extending and retracting. Set the system pressure at 20
bar, 25 bar, 30 bar and 35 bar.
Equipments:
a. Pressure gauges
b. Hydraulic trainer
UNIVERSITI TUN HUSSEIN ONN MALAYSIA86400 Parit Raja, Batu Pahat, Johor Darul Ta’zim. http://www.uthm.edu.my
Fakulti Kejuruteraan Mekanikal dan Pembuatan
AMALAN KEJURUTERAAN MEKANIKAL II (BDA 1811)
Title : Hydraulics Practise II
Learning Outcomes:
Upon completion this task, students should be able to :
a) Draw , install and commission a hydraulic circuit to control the movement of
double acting cylinder using 4/3 way directional control valve.
b) Measure the flow rate of hydraulic fluid in the cylinder.
Task :
1) Press the starting switch A of a hydraulic cylinder will move the piston for 10cm,
15cm and 20cm stroke. The piston will return to initial state when the switch is
dispressed.
2) Measure the flow rate of the hydraulic cylinder during extending and rectracting
by replacing the existing cylinder with the measuring flow rate cylinder.
3) Replace the cylinder with a hydraulic motor. Set the motor at 3 different speed.
Equipments:
a. Hydraulic trainer
b. Measuring flow rate cylinder
c. Hydraulic motor
UNIVERSITI TUN HUSSEIN ONN MALAYSIA86400 Parit Raja, Batu Pahat, Johor Darul Ta’zim. http://www.uthm.edu.my
Fakulti Kejuruteraan Mekanikal dan Pembuatan
AMALAN KEJURUTERAAN MEKANIKAL II (BDA 1811)
Title : Electro-hydraulics
Learning Outcomes:
Upon completion this task, students should be able to :
a) Draw , install and commission an electro-hydraulic circuit to control the
movement of a single acting cylinder using 4/2 way directional control
valve.
b) Apply mechanical sensors to electro-hydraulic control system.
Task :
1) Draw, install and commission an electro-hydraulic control circuit to move a double
acting cylinder by pressing a starting switch A OR switch B to move the single
acting cylinder. The cylinder will retract automatically when it reaches the maximum
stroke and the switch C is pressed. Led GREEN and Led RED must be activated
when the piston at the minimum and maximum stroke respectively.
2) Use a 4/2 way directional control valve single solenoid. Set the pump pressure at 20
to 40 bar.
Equipments:
a. Electro-hydraulic trainer.
UNIVERSITI TUN HUSSEIN ONN MALAYSIA86400 Parit Raja, Batu Pahat, Johor Darul Ta’zim. http://www.uthm.edu.my