PLC BASED AUTOMATIC CONTROL FOR ONBOARD SHIP GANGWAY CONVEYOR SYSTEM

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1 International Journal of Mechanical Engineering and Technology (IJMET) Volume 8, Issue 3, March 2017, pp Article ID: IJMET_08_03_025 Available online at ISSN Print: and ISSN Online: IAEME Publication Scopus Indexed PLC BASED AUTOMATIC CONTROL FOR ONBOARD SHIP GANGWAY CONVEYOR SYSTEM P. Veerakumar, M. Dheepak and Dr. S.V. Saravanan Assistant Professor, Department of EEE (M), AMET University, Chennai, Tamilnadu-India ABSTRACT Gangways are built for carry passengers access between the ship to the terminal. All Comply with rules and guidelines to suit senior citizens and passengers with impaired mobility, incresing the confidence of boarding and disembarking passengers.during many years gangways have caused many accidents at the time of carrying peoples to access between ship to the terminal because of overloading on the gangways.to avoid such accidents PLC based automatic control of gangway conveyor system is proposed. Key words: PLC, Gangway Converyor, Ladder Diagram Etc, Cite this Article: P. Veerakumar, M. Dheepak and Dr. S.V. Saravanan, PLC Based Automatic Control For Onboard Ship Gangway Conveyor System, International Journal of Mechanical Engineering and Technology, 8(3), 2017, pp INTRODUCTION A conveyor system is mechanical handling equipment which moves materials from one location to other. Conveyors are useful especially in applications such as transportation of heavy and bulky materials. Conveyors are commonly used in many industries including the automotive, food processing, aerospace, chemical and electronic. Many factors are important in the accurate selection of a conveyors system. It is important to know how the conveyor system will be used beforehand. As per the loss prevention bulletin published on 03/01/2013 by the insurance services firm of west of England, For many people the gangway and accommodation ladder is the first point of contact with a ship. Initial impressions are important, and a properly rigged ladder may be the first indication to a visitor that they are boarding a well run vessel. However, someone obliged to climb a ladder which is unsteady, slippery or unsafe may have formed an unfavourable opinion of the ship and its crew by the time they have reached the top. Based on these documents the automatic control of gangway was created to solve the problems, accidents and increase the safety. In this proposed work, automatic control of gangway conveyor on board ship is automated using programmable logic controller and RS logix 500 (ladder diagram programming software), which helps to improve the safety of system by avoiding overloading editor@iaeme.com

2 PLC Based Automatic Control For Onboard Ship Gangway Conveyor System of gangway conveyor and also operation time will be reduced and performance is improved. This operation will be done by controlling the exact weight that gangway can support up stair and down stair since the gangway conveyor can move forward and reverse. The main objective of the project is Figure 1 Block Diagram of Proposed System To replace mechanical handling gangway by automatic gangway conveyor by using PLC To avoid overloading of conveyor by automatic control To control the exact weight of the conveyor To ensure the safety of gangway conveyor during operation 2. PROGRAMMABLE LOGIC CONTROLLER A programmable logic controller is a special type of computer used to control machines and processes. PLC is designed to survive in a rugged industrial atmosphere and to be very flexible in how it interfaces with inputs and outputs to the real world. PLC components can be divided into three major core areas. The power supply and rack The central processing unit (CPU) The input/output (I/O) section PLCs come in many shapes and sizes. They can be so small as to fit in your shirt pocket while more involved controls systems require large PLC racks. Smaller PLCs are typically designed with fixed I/O points. For our consideration, we ll look at the more modular rack based systems. It s called modular because the rack can accept many different types of I/O modules that simply slide into the rack and plug in. In our project we have used Allen-Bradley MicroLogix 1000 family PLC editor@iaeme.com

3 P. Veerakumar, M. Dheepak and Dr. S.V. Saravanan 3. CONFIGURATION OF PLC The MicroLogix 1000 programmable controller is a packaged controller containing a power supply, input circuits, output circuits, and a processor. The controller is available in 10 I/O, 16 I/O and 32 I/O configurations, as well as an analog version with 20 discrete I/O and 5 analog I/O. Figure 2 Hardware Features of Controller A hard-wired master control relay (MCR) provides a reliable means for emergency controller shutdown. Since the master control relay allows the placement of several emergencystop switches in different locations, its installation is important from a safety standpoint. Over travel limit switches or mushroom head push buttons are wired in series so that when any of them opens, the master control relay is de-energized. This removes power to input and output device circuits. 3. PRINCIPLES OF MACHINE CONTROL The controller consists of a built in power supply, central processing unit (CPU), inputs, which you wire to input devices (such as pushbuttons, proximity sensors, limit switches), and outputs, which you wire to output devices (such as motor starters, solid state relays, and indicator lights). With the logic program entered into the controller, placing the controller in the Run mode initiates an operating cycle. The controller s operating cycle consists of a series of operations performed sequentially and repeatedly, unless altered by your program logic. 4. PROGRAM SOFTWARE: RSLOGIX 500 The RSlogix family of ladder logic programming packages helps us to maximize the performance, save project development time, and improve productivity. This family of products has been developed to operate on Microsoft windows operating systems editor@iaeme.com

4 PLC Based Automatic Control For Onboard Ship Gangway Conveyor System Figure 3 Block Diagram of MicroLogix1000 CPU The RS Logix 500 programming package is compatible with programs created with Rockwell Software DOS-based programming packages for the SLC 500 and MicroLogix families of processors, making program maintenance across hardware platforms convenient and easy. Figure 4 RSLogix 500 Software for Ladder Diagram editor@iaeme.com

5 P. Veerakumar, M. Dheepak and Dr. S.V. Saravanan 5. LADDER DIAGRAM FOR PROPOSED SYSTEM Figure 5 Ladder Diagram Rung 0000 to0010 Figure 5 Ladder Diagram Rung 0011 to editor@iaeme.com

6 PLC Based Automatic Control For Onboard Ship Gangway Conveyor System 6. OPERATION OF AUTOMATED GANGWAY CONVEYOR SYSTEM The functions of onboard ship gangway conveyor system are controlled using Allen Bradley MicroLogix 1000 Programmable controller. It receives inputs from sensors and uses RSLogic 500 software for realising the functions in form of Ladder diagram and based on which operations such as conveyor movement, monitoring and alerting can be automatically performed. The automatic gangway conveyor system are installed with start switch, forward/reverse hold on push button and load cell top/down position button which helps to manage the operations of gangway conveyor system in efficient way whenever necessary. 7. SIMULATION RESULTS Figure 6 Side View of Proposed System Figure 7 Top View of Proposed System editor@iaeme.com

7 P. Veerakumar, M. Dheepak and Dr. S.V. Saravanan 8. CONCLUSION PLC based automatic control for onboard ship gangway conveyor system improving the mobility and helps in avoiding accident during boarding. Thus, It serves as the helping hand for the passengers, senior citizens, disabled people and cargo travelling in onboard ship. REFERENCES [1] Hager M, Simonsen H. Calculation and design of belt conveyors for bulk Material, Braunkohle Surf Min 2000, 52 (3), [2] S. M. Shinde, R.B. Patil, Optimization Technique Used for the Roller Conveyor System for Weight Reduction, PG student, Jawaharlal Nehru College of Engineering, Aurangabad, India. Associate Professor, Jawaharlal Nehru College of Engineering, Aurangabad, India., International Journal of Engineering Research & Technology (IJERT) 1(5), July [3] M.A.Alspaugh, Latest Developments in Belt Conveyor Technology, Overland Veyor Co., Inc. Presented at MIN Expo 2004 Las Vegas, NV, USA September 27, [4] Good Year. Handbook of conveyor and elevator belting. Akron, Ohio: The Goodyear Tire & Rubber Company; [5] Maha M. Lashin, Different applications of programmable logic controller (PLC) (IJCSEIT), 4(1), February [6] Prof. Burali Y. N, PLC Based Industrial Crane Automation & Monitoring, International Journal of Engineering and Science ISSN: , 1(3) (Sept 2012), PP [7] Allen Bradley MicroLogix 1000 Programmable controller s user manual. [8] Shizhuang Lin, Jingyu Liu, Yanjun Fang. ZigBee Based Wireless Sensor Networks and Its Applications in Industrial, IEEE International Conference on Automation and Logistics, 2007.pp: [9] X. Yu, X. Feng, C. Xiong and S. Jiaotong, The Design and Implementation of Elevator Group Control System Research Platform, Proceedings of the 2009 International Workshop on Information Security and Application, Qingdao, November [10] Ankush Dharkar and Dr. P. M. Daigavane Control of Variable Frequency Drives with PLC: A Review. International Journal of Electrical Engineering & Technology, 8(1), 2017, pp [11] Prof. N.V.Hargude, Prof. P.R.Patil, Design and Development of PLC Operated Hydraulic System For Machining Process, International Journal of Mechanical Engineering and Technology (IJMET), 3(2), May-August (2012), pp [12] Tushar Jamsutkar, Sagar Gore, Pankaj Patil, Ashok Suryawanshi, PLC Based System For Controlling And Monitoring Parameters In Ship, International Journal of Science, Engineering and Technology Research (IJSETR), 3(4), April editor@iaeme.com