LAYBOUY SEQUENCE OF PULP WETLAP CONTROL USING PLC

Abstract

Nowadays, automation in the industry is a global need for ease of operation, flexibility and operational
safety. Automation is basically the delegation of human control functions to technical equipment aimed towards
achieving higher productivity, superior quality of end product, efficient usage of energy and raw materials, improved
safety in working conditions etc. In recent years programmable logic controller (PLC) has experienced an
unprecedented growth as universal element in industrial automation. This research paper presents laybouy sequence for
pulp sheet in wetlap process. The idea is to automate the process of pulp sheet collection in sequence operation using
programmable logic controller. The purpose of this proposed method is to replace the manual system which currently
used, compare the cost and maintenance time for both the existing with the proposed automated safety system. The
Siemens S7 1200 series PLC is used to mechanize the system. Sensors such as proximity, limit switch and photo cell are
used to provide input to the system and motors such as servo and dc motor serves as an output. Ladder diagram as a
programming language is used to control the whole system between the input and output.