Pdf plcbased smart elevator control system researchgate. The system sequence of operation is designed by ladder diagram and plc programming software. The elevator plc can restrict floor access with convenient, reprogrammable codes, rather than keys. Jun 27, 2015 many plc ladder logic program examples are available for download, and you will have to install the plc programming software to view the example ladder. Block diagram of plc based elevator figure 1 depicts the block diagram of a plc based elevator.
Plc based controllers, oem systems special purpose mechanical and electrical systems elevator systems has manufactured a variety of systems and components to custom specifications. This paper mainly focuses on using programmable logic controller to c ontrol the circuit and building. Virginia controls mvf ac traction elevator controllers feature plcbased microprocessors. The programmable logic control plc has proven to be dependable in many industrial control environments and. A simulation study of elevator control of a building using. Virginia controls mvf ac traction elevator controllers feature plc based microprocessors. Elevator concepts utilizes a special type of industrial computer called a programmable logic controller plc to control the logic of more complex jobs. The elevator controller is a device used to control a lift motion and to indicate the direction of motion, and the present floor level, etc.
Here, elevator is come at first floor from any floor in downward direction for second floor operation. Based upon the need the blocks have been developed and drawn as block diagram figure 1. Pdf design and implementation of plc based elevator semantic. Implementation of a fourfloor programmable logic controlled elevator system. Plc is the replacement to relay logic controller, one can make the better use of. Plc based elevator control page 3 vadodara institute of engineering kotambi 391510 certificate this is to certify that the pmms reports, submitted along with the project entitled plc based elevator control system has been carried out by krupal r bhoi, priyank r patel, dhaval s sukhanandi, avadhesh r. Lets say you have a specific functionality, you want to implement in your ladder logic, a plc timer function for example. This comes as a microcontrollerbased system of my previous plc based project in this project, we will learn the circuit design for a 4 floor elevator control on how to develop a four stories passenger lift or cargo lift using an atmega16 microcontroller. This paper describes programmable logic co ntroller based elevator control system.
But, one unique aspect of this work is that we have not included. It uses a programmable memory to store instructions and specific functions that include onoff control, timing. Abstract this paper introduces a packaging machine using programmable logic controller plc in automation industry. The advent of personal computers has made microprocessor technology affordable for many other fields. This control system is described with the use of so machine v3. Implementation of a fourfloor programmable logic controlled. The main modeling method of the plc is based on ladder logic. Automationdirect is your source for programmable logic controllers plcs. Sutagundar, design of a plc based elevator control sy stem, international j ournal on emer ging techn ologies special issue on ncriet 2015 62.
This version of internet explorer is either no longer supported by microsoft, or is obsolete and some features of. Ebook in pdf format would be shipped on a cd rom format. Aditya gupta15102031 sneha yadav15102194 abstract the aim of the project is to design and implement an elevatorlift controller using verilog hardware descriptive language hdl. The plc receives information from connected sensors or input devices, processes the data, and triggers outputs based on preprogrammed parameters. Plc controlled systems plays a vital role in stability and steady state of lift. Every plc manufacturer uses instruction symbols industry trend is based on iec 61 variations in symbols by manufacturers allenbradley controllogix symbols slightly different refer 2. Even time can be consumed by using such plcbased elevator controller system. Safety featured elevator control using plc vishakha sadhwani. Plc act as the master controller, on one hand it collects a variety of input signals of the elevator, including the location of the elevator, state of the signal of internal and external command button, the door lock signal, the door zone signal, forced to slow down,the signal within the wells and fire signals. This is attached with the elevator cabin with the use of proximity sensor ldr the position of the cabin will be determined and by using the door sensor. Bcd to seven segment circuit is used for to show the current position of elevator. May 20, 2015 plc based elevator designed citcutm students under guidence of prof.
This is to certify that the project entitled plc based elevator controller submitted in partial fulfillment of the requirement for the award of bachelor of technology in electrical engineering under wbut is faithful record of the bona fide project work, carried out by the following candidates under my guidance and supervision. Automatic control of electrical overhead smart trolley. Application of plc for elevator control system semantic. An elevator controller is a system to control the elevators, either manual or automatic. The control system adopts plc as controller, and uses a parallel connection dispatching rule based on. Theses witches are controlled by the plc controller. An elevator is one of the important aspects in electronics control module in automotive application. The main objective of this paper is to replace the traditional relay logic elevator control system with the modern plc based elevator control system. Index terms elevator control, microcontroller, congestion free. The plc used for this project is ge fanuc with six inputs and four outputs.
In this way embedded system engineer can design a control system after a lot of process and errors that are comes in handwritten hdl programming. Feb 23, 2011 you can call the floor which ever floor you like to call it has ladder logic on siemens micro win s7200. Plc is a processor function based system that uses programmable recollection to store instruction and use function such as reason, sequencing, timing, depending and arithmetic as a way to control machines and process. The block diagram of plc based elevator control system is described in figure 4to accomplish the plc based control system, the design uses six major components. Elevator control system field programmable gate array. Supply is given to both the plc controller as well as to the motor. Besides a plc makes simple the electrical connections and reduces the chance of failure.
Implementation of plc based elevator control system. Computer based controllers are suitable for the following. Jul 06, 2018 the plc receives information from connected sensors or input devices, processes the data, and triggers outputs based on preprogrammed parameters. Nowadays, myanma r is a developing country and there is enormous increase in highrise building in myanmar.
Nevonprojects constantly researches and brings you plc based projects for industrial automation as well as other monitoring and control processes. Simple arduino based 4 floor elevator project plcdoc. The low voltage power supply is for the controlling component and the fixtures to control the elevator except the items mentioned above, they use the single phase power. The first programmable logic controller, plc was developed by a group of engineers at general motors in 1968.
Lecture introduction to plcs mme 486 fall 2006 4 of 47 programmable logic controller a programmable logic controller plc is a specialized computer used to control machines and process. Design and practice of an elevator control system based on plc. Implementing a plcbased temperature controller with pid algorithm implementing a plcbased temperature controller with pid algorithm product details. A realtime digital computer system used for industrial automation of electromechanical processes may include control of machines on factory assembly lines. Block diagram for plc based elevator control system is as shown in figure 2.
With the elevator plc system, this feature can transfer a car from group to single car operation. The elevator cabin in turn driven by the motor unit. Application of plc for elevator control system semantic scholar. This paper specifically deals with programmable logic controller plc as the main controlling device to regulate. Even time can be consumed by using such plc based elevator controller system. It guides the lift in what order to stop at floors, when to close and open the door. Students attending college for electronics engineering may focus on a career involving a computerbased programmable logic controller or plc. The first is the floor, the second is the plc controller and the last is the elevator. Plc projects on industrial automation nevonprojects. Motor of the elevator is driven by the motor drive unit.
The first thing you naturally would do, is to think about it for yourself. Plc or programmable logic controllers are logic controllers that make use of logic to automate various processes. Based on this relay operation elevator is move up and down. The schumacher elevator ss5plc hydraulic elevator control system is specifically designed to meet the demands of the hydraulic elevator industry. It uses a programmable memory to store instructions and specific functions that. A plc programmable logic controller is a device that was. The control system adopts plc as controller, and uses a parallel connection dispatching rule based on minimum waiting time to run two elevators in parallel mode. A simulation study of elevator control of a 3storey building has been presented in this paper using digital logic circuit.
After the designing of the model, calculation has to be done for each and every component present in the model. In this research paper an attempt has been made to integrate the programmable logic controller plc with elevator for developing its control system. Plc based elevator designed citcutm students under guidence of prof. Scans the state of the inputs sensing devices, switches and pushbuttons, proximity sensors, pressure switches etc. Its control is based on the input that we get from the operator as well as from the sensors. Schindler prints with vegetablebased ink on paper containing postconsumer. Energizedeenergize the outputs valves, solenoids, motor, actuators, pumps.
When second floor switch pushed than it is check two condition that where the elevator and third floor or first floor. Another reason to make use of ladder logic examples is, that you can learn from them. As a result, a plc based process control system is widely used in industry. Using configuration software in conjunction with the manipulators movement in the system gave the most intuitive exhibition and the dynamic imitation.
Plc in the designing of the elevator control system. Get unbeatable value on plc hardware, including fast shipping and free technical support. This is to certify that the project entitled plc based elevator controller submitted in partial fulfillment of the requirement for the award of bachelor of technology in electrical engineering under wbut is faithful record of the bona fide project work, carried out by the following candidates under. The ss5plc control is capable of handling single and multicar group operation. Plc based intelligent traffic control system muhammad arshad khattak. It guides the elevator in what order to stop at floors, when to open or close the door etc. This paper introduced the design and realization of the elevator experimental equipment based on configuration software and plc.
Add or enhance features easily the plc programmable logic controller system replaces existing relay switches and multiple timers with. Introduction to programmable logic controllers plcs. The elevator control system is programmed in a ladder diagram. Elevator is an inseparable part of a building structure. The main aim of the paper is to design and fabricate a small and a simple packaging. Variable voltage variable frequency traction elevator controller hydraulic elevator controller teers traction elevator emergency return system esic cpu based control system users manual septa slc500 plc hydraulic elevator controller. The elevator cabins upside and downside movement is controlled the switch operated motor. Plc based intelligent traffic control system muhammad arshad khattak department of computer science and information technology sarhad university of science and information technology suit peshawar 25000 pakistan arshad. Design and practice of an elevator control system based on plc abstract.
Block diagram fo r plc based elevator co ntrol system is as shown in figure 2. In short, this project is to design and construct an automatic escalator using programmable logic controller and ir sensor is used to know the position. The three main parts of plc are namely the central processing unit cpu, the input output selection and the programming device. Abstract this project reports on the design and implementation of a plcbased controller for a four level elevator. Custom systems based on industry standard programmed logic controllers, unique door operators, and special enclosures for demanding job site conditions are just a.
They are very dependable, compact, and simple to troubleshoot. Elevator control system of a building has been proposed in some literatures 123. This paper describes the development of two ninestorey elevators control system for a residential building. This control is based on the input that is received from the operator as well as from the sensors at every floor. Plc controller a plc is user friendly micr oprocesso r based specialized computer that carries out control. We can made the hardware model of the three floor elevator.
The design of elevator control system based on plc and. Design of five floors elevator with scada system based on. Figure 2 indicates the overall system block diagram of this proposed system. Plc ladder logic symbols the symbols are ladder logic instructions the plc scans executes the symbols. So, the control system is essential in the smooth and safe operation of the elevator. On old elevators the direction of the car is controlled by selectors mounted in the shaft, one at each floor. Overview of plc based itcs the main theme of this report is to build and verify the designs and understand the concept. For future flexibility, you can add features in phases. The elevator mentioned here is fully automated using plc.
Design of a plc based elevator control system research trend. This plc based smart elevator control system project consists of three sensors, on each floor these. A plc constantly checks it is inputs, centered on or off. Depending on the inputs and outputs, a plc can monitor and record runtime data such as machine productivity or operating temperature, automatically start and stop processes, generate alarms if a. Aug 03, 2008 design and practice of an elevator control system based on plc abstract. Thus, this paper describes the application of programmable logic controller for elevator control system. This paper is on the design and implementation of a 4floor elevator control system using programmable logic controller plc. The fpga based elevator control system provides more flexibility, compatible than microcontroller plc based control system in which handwritten programming is used. Controller plc is used due to its advantages, such as fast response, quick and simple troubleshoot, low cost and high reliability. Another brand specific issue is the names for the instructions and functions. Plc based elevator control system pdf document blikoon. Hence an elevator becomes an essential medium of perpendicular.