WEIGHING AND BATCHING USING PLC

ELECTRICAL ENGINEERING PROJECT MEGHANI TUSHAR-110800109001

VYAS MRUNAL-110800109002 DEVRE CHETAN-110800109003

PATEL SAJAN-110800109004 INTERNAL GUIDE:-MR.NISHANT GHANDHI

WHY WE SELECT THIS PROJECT ?

• In manual system many disadvantages:-• More human operators required • Less profit • Not accurate • Low efficiency

Power Supply

Switches

BCD S/W for weight selection

Set point reached Relay I/P

Conv. Motor

Speed 1

Conv. Motor

speed 2

PLC

PLC Allen BradleyMicrologix(Programming Logic Controller)

• Developed to replace relays in the late 1960s• Costs dropped and became popular by 1980s• Now used in many industrial designs• The Hydramatic Division of the General Motors

Corporation specified the design criteria for the first programmable controller in 1968

• Their primary goal :To eliminate the high costs associated with inflexible, relay-controlled systems.

A digitally operating electronic apparatus which uses a programming memory for the internal storage of instructions for implementing specific functions such as logic, sequencing, timing, counting and arithmetic to control through digital or analog modules, various types of machines or process.

Leading Brands Of PLC

AMERICAN : Allen BradleyEUROPEAN : SiemensJAPANESE : Toshiba Mitsubishi

Advantages of PLCs

• Less wiring.• Wiring between devices and relay contacts are done in

the PLC program.• Easier and faster to make changes.• Make programming easier and reduce downtime.• Reliable components make these likely to operate for

years before failure.

Areas of Application

• Manufacturing / Machining• Food Industries• Metals• Power• Mining• Petrochemical / Chemical• Cementation

12V D.C GEARED MOTOR

• Motors :maximum power 3.9 W• Extended speed range :3.6 to 430

rpm• Gearbox torque rating :0.5 N.m• High-performance plastic gears

CONTROLLING CIRCUIT

Load cell amplifier for weighing scale

• Serial Output Model: 1190• The board is total solution for

analog front end for Load Cell applications.

• A load cell is a transducer that is used to convert a force into electrical signal.

• The most common use of this sensor is in weighing machine.

• Every weighing machine which shows weight has a load cell as sensing element.

• The output can be used to connect to process indicator for further display and processing or can be fed to pc serial port to view on terminal.

• The calibration functions in built in the board giving very accurate, stable and reliable output every time.

ADVANTAGES

• Automation plays an increasingly important role in the world economy. One of the important applications of automation is in the automatic weighing and batching application for food industries and cement factory.

• Reduced the human operators • More profit • More accurate • Less time • Increase the efficiency

APPLICATION• Totally Integrated Automation puts this continuity into consistent

practice. Totally Integrated Automation covers the complete production line, from receipt of goods, the production process, filling and packaging, to shipment of goods.

• One of the important applications of automation is in the automatic weighing and batching application for food industries and cement factory

• Our project is also an application of automation wherein we have developed a liquid filling to bottles of different height. The various processes are controlled using a PLC (Programmable Logic Controller).

Thank You