A PLC is used to control a conveyor system that transports copper plates. The system has three segmented conveyor belts, with each segment powered by a motor. A proximity switch at the end of each belt segment detects the position of the copper plate. The first belt segment is always on, and the second segment turns on when the proximity switch in the first detects the plate, allowing only the sections carrying a plate to move. The PLC provides automated control of the conveyor motors based on input from the proximity sensors to efficiently transport the plates along the production line.

1. Gandhinagar Institute of Technology
Subject :- Control Engineering
MECHANICAL ENGINEERING
5th - B : 2
Presentation
on
Plc in conveyor system
– Mayank Bhatnagar [130120119100]
Pavan Narkhede [130120119111]

2. A PLC (Programmable Logic Controllers) is an
industrial computer used to monitor inputs,
and depending upon their state make
decisions based on its program or logic, to
control (turn on/off) its outputs to automate a
machine or a process.

3. • “A digitally operating electronic apparatus
which uses a programmable memory for the
internal storage of instructions by
implementing specific functions such as logic
sequencing, timing, counting, and arithmetic
to control, through digital or analog
input/output modules, various types of
machines or processes”.

4. In automated system, PLC controller is usually
the central part of a process control system.
To run more complex processes it is possible
to connect more PLC controllers to a central
computer.

5. Rugged and designed to withstand vibrations,
temperature, humidity, and noise.
* Have interfacing for inputs and outputs
already inside the controller.
* Easily programmed and have an easily
understood programming language.

6. • Too much work required in connecting wires.
• Difficulty with changes or replacements.
• Difficulty in finding errors; requiring skillful
work force.
• When a problem occurs, hold-up time is
indefinite, usually long.

7. • A conveyor system is a common piece of
mechanical handling equipment that moves
materials from one location to another.
• Conveyors are especially useful in applications
involving the transportation of heavy or bulky
materials.
• Conveyor systems allow quick and efficient
transportation for a wide variety of materials,
which make them very popular in the
material handling and packaging industries.

8. • Pneumatic conveyor system
• Vibrating conveyor system
• Flexible conveyor system
• Vertical conveyor system
• Heavy duty roller conveyors

10. • On-off control
• Sequential control
• Feedback control
• Motion control

12. • A PLC is used to start and stop the motors of a
segmented conveyor belt, this allows only belt
sections carrying a copper plate to move.
• The system have three segmented conveyor
belts, each segment runs by a motor.
• A proximity switch located at the end of each
segment to detect the position of the plate.
• The first conveyor segment is always on. The
second conveyor segment turns on when the
proximity switch in the first segment detects
the plate.