97 Design PDF
97 Design PDF
97 Design PDF
Website: www.ijareeie.com
Vol. 6, Issue 3, March 2017
ABSTRACT: Automation is basically the delegation of human control functions to technical equipment, aimed to
achieve higher productivity, superior quality and efficient use of energy and raw materials. Now a days PLC serves this
purpose. PLC is an industrial computer that monitors input, makes decision based on its program and controls output to
automate a process or machine. It is used to reduce human efforts, to get maximum efficiency from machine and
control them with human logic. It can be effectively used in applications ranging from simple control such as small
number of relays to complex automation systems. The PLC used in this project is micro PLC of the SIEMENS
Company’s S71200 SIEMANTIC. The operations of PLC can be done through control panel. A control panel is an area
where control or monitoring instruments are displayed. Conventional control panels are most often equipped with push
buttons and analog instruments. This control panel is designed to control the 5T hydraulic flywheel assembly press.
The flywheel which is used in four stroke engines.The control panel consists of PLC kit, bus bars, transformers, SMPS,
protection and safety circuits, I/O terminals, alarms, lamp, timers, indicators, relays and contactors. The output
terminals are suitably connected to the valves, pumps, motor etc., of the machine. The panel wiring reduces the
complexity in the system hardware. This system is widely used in automobile industries for assemble freewheel which
involves the gear wheel assembly. As PLC is a real time system, it is most suitable for flexible and accurate operation
of the machine.
I.INTRODUCTION
Assembly presses are generate enormous pressure to assemble and secure parts together. The proposed
machine is used to assemble the flywheel which is used for automobile engines. A C-type pneumatic hydraulic
assembly press has been used for this purpose. The machine consists oil tank, pneumatic cylinder, oil pump, solenoid
valves, etc. The machine is entirely controlled and operated by PLC. In control panel PLC kit, relays, MCB, MPCB,
and SMPS are used to operate the hydraulic machine. In existing, there is no monitoring system to view the current
position of the machine. Here SCADA is used to view the current status and the position of the machine. For
assembling the free wheel, we can give pressure up to 5ton.
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II.BLOCK DIAGRAM
CONTACTOR:
A contactor is an electrically controlled switch used for switching an electrical power circuit, similar to
a relay except with higher current ratings and a few other differences.Contactors typically have multiple contacts, and
those contacts are usually normally-open, so that power to the load is shut off when the coil is de-energized. Perhaps
the most common industrial use for contactors is the control of electric motors.
CONTROL TRANSFORMER:
A control transformer, (also known as an industrial control transformer, or a control power transformer, or
even a machine tool transformer), is essentially an isolation transformer that provides excellent voltage regulation. A
control transformer is very often designed to produce a high level of secondary voltage stability during brief periods of
overload condition, typically known as inrush current.
SMPS:
The electronic power supply integrated with the switching regulator for converting the electrical power
efficiently from one form to another form with desired characteristics is called as Switch-mode power supply. It is used
to obtain regulated DC output voltage from unregulated AC or DC input voltage. A switched-mode power supply
(SMPS) is an electronic circuit that converts power using switching devices that are turned on and off at high
frequencies, and storage components such as inductors or capacitors to supply power when the switching device is in
its non-conduction state.
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Vol. 6, Issue 3, March 2017
RELAY:
A relay is usually an electromechanical device that is actuated by an electrical current. The current flowing in
one circuit causes the opening or closing of another circuit.When there is current through the coil of wire on the control
side a magnetic field is produced. This magnetic field attracts the armature and closes the contacts on the load side. In
normally open (NO) relay the contacts are in normally open state. When the coil is energized the contacts are closed.
In normally closed (NC) relay the contacts are in normally closed state. When the coil is energized the contacts are
opened.
INDUCTION MOTORS:
A motor is nothing but an electro-mechanical device that converts electrical energy to mechanical energy
Induction motors are widely used in industrial drives because they are rugged, reliable and economical. An induction
motor is an AC electric motor in which the electric current in the rotor needed to produce torque is obtained
electromagnetic induction from the magnetic field of the stator winding.
PROXIMITY SENSOR:
A proximity sensor is a sensor able to detect the presence of nearby objects without any physical
contact.Aproximity sensor often emits an electromagnetic field or a beam of electromagnetic radiation (infrared, for
instance), and looks for changes in the field or return signal. The object being sensed is often referred to as the
proximity sensors target.
LVDT:
The term LVDT stands for the linear variable differential transformer. It is the most widely used inductive
transducer that convert the linear motion into the electrical signals. LVDT works under the principle of mutual
induction, and the displacement which is a non-electrical energy is converted into an electrical energy. The output
voltage of an LVDT is linear function of core displacement.
LOAD CELL:
Load cell is a type of transducer which performs the functionality of converting force into an electric output
which can be measured. Piezoelectric load cells work on the same principle of deformation as the strain gauge load
cells, but a voltage output is generated by the basic piezoelectric material - proportional to the deformation of load cell.
The acting pressure was displayed in special meter.
PLC:
Programmable Logic Controller (PLC) is a digital computer used for the automation of various electro-
mechanical processes in industries, such as control of machinery on factory assembly lines. These controllers are
specially designed to survive in harsh situations and shielded from heat, cold, dust, and moisture etc. PLC consists of a
microprocessor which is programmed using the computer language.
The program is written on a computer and is downloaded to the PLC via cable. These loaded programs are
stored in non – volatile memory of the PLC. During the transition of relay control panels to PLC, the hard wired relay
logic was exchanged for the program fed by the user. A visual programming language known as the Ladder Logic was
created to program the PLC.The analog and digital input modules are connected to plc for connecting LVDT and load
cell.
SCADA:
SCADA systems deploy multiple software and hardware elements that allow industrial organizations to
Monitor, gather, and process data, Interact with and control machines and devices such as valves, pumps, motors, and
more, which are connected through HMI (human-machine interface) software. SCADA also records and logs all events
into a file stored on a hard disk or sends them to a printer. SCADA applications warn when conditions become
hazardous by sounding alarms.
In basic SCADA architectures, information from sensors or manual inputs are sent to PLCs or, which then
send that information to computers with SCADA software. SCADA software analyses and displays the data in order to
help operators and other workers to reduce waste and improve efficiency in the manufacturing process. WINCC brand
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Vol. 6, Issue 3, March 2017
SCADA software was implemented in this project. SCADA software for this machine has able keep the records of 5
years such as number of cycles, Motor on time, machine working status, etc.
III.CONTROL PANEL
A panel board is an element of a system used to supply electricity .primary function is to divide an electrical
feed into supplementary circuits while providing shielding and protection for each circuit in an enclosed space.
Panel board is tend to made up of circuit breaker, bus bars, switches, relays and other protective equipments.
The panel board consists MS channel to place the components and PVC channels to provide wiring
The machine control box was separately placed which consists push buttons, selector switches& load cell
meter.
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Vol. 6, Issue 3, March 2017
IV.SOFTWARE DETAILS
The software used in the proposed system of our project is TIA13. It is an overall project management tool
that allows for complete system (multiple controllers, HMIs, networks, SCADAs,etc.) to be programmed, monitored,
saved and stored all in one software package . The ladder logics are developed using TIA13. The details of the software
is described in this chapter. The ladder logics are developed in multiple modules.
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Vol. 6, Issue 3, March 2017
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Vol. 6, Issue 3, March 2017
Website: www.ijareeie.com
Vol. 6, Issue 3, March 2017
VI.FINAL PRODUCT
VII.CONCLUSION
Thus in all industries many manual operations are done and many accidents also according for the operators
and thus it cannot be avoided at any situations. We can make the manual operations by automatic and thus it reduces
the manual operations as well as the accidents occurring to the operators can be avoided. The PLC operation involves
the operation with SCADA which is very easy to operate from a personal computer itself. Thus the operating time also
get reduced with high production. Today industrial automation software requirements include capability to implement
application involving widely distributed devices, high reuse of software components, formal verification that
specifications are fulfilled.
REFERENCES