25-08-2017, 09:32 PM
PROGRAMMBLE LOGICAL DEVICE (PLC) AT AUTOMATION SYSTEM
TRAINING PRESENTATION(2003).ppt (Size: 2.77 MB / Downloads: 35)
COMPANY INTRODUCTION
M/s Automation Systems is permoted under the brand name of schneider electric, with it’s Head Office in Ludhiana Incorporated in the year 1995 with aim to establish a professionally managed corporate in the key areas of :
Company provide solution for:-
turnkeys project
Home automation
Industry automation
Automation Systems has been devoted to the development of innovative solutions for over 12 years.
WHAT IS AUTOMATION
To analyze and control all the process, parameters in the plant by the help of automation devices.
Automation device is a system, which on the basis of information fed in it, performs predefined actions with a bearing on its environment.
HISTORY OF PLC
In 1968 GM Hydramatic issued a request for proposal for an electronic replacement for hard wired relay systems. PLC were first created to serve the automobile industry, and the first PLC project was developed in 1968 for general motors to replace hard wired relay systems.
PROGRAMMBLE LOGICAL DEVICES
PLC (Programmable Logic Controller) is a solid state device designed to perform the logic functions previously accomplished by components such as electromechanical relays, drum switches, mechanical timers/ counters etc. for the control and operation of manufacturing process equipment and machinery.
AC DRIVES
AC drive, is able to supply the required level of current and voltage in a form that motor required. The controls is provide to the user with necessary adjustments such as minimum and maximum speed settings, so that the drive can be adapted to the user's process. The drive can shut itself down when detecting either an internal or an external problem. The drive components are all packaged in a single enclosure to aid in installation but that's about it.
NEED OF HMI
To work with a system, users have to be able to control the system and assess the state of the system. For example, when driving an automobile, the driver uses the steering wheel to control the direction of the vehicle, and the accelerator pedal, brake pedal and gear stick to control the speed of the vehicle. The driver perceives the position of the vehicle by looking through the windscreen and exact speed of the vehicle by reading the speedometer. The user interface of the automobile is on the whole composed of the instruments the driver can use to accomplish the tasks of driving and maintaining the automobile.