PLC BASED SEQUENCE DETECTION & MONITORING SYSTEM FOR GEARED SHAFT ASSEMBLY

This paper presents sequence detection and monitoring system for geared shaft assembly based on programmable logic controller (PLC) technology. PLC based assembly system which recognizes that the worker has to pick up washers, gears, guide sleeves, circlip etc as per the pre-defined sequence. All sensor output fed to Controller and it will detect the sequence if it is ok then operation complete indicator will turn glow. If sequence is not follow it will not process next operation. Main advantage of system is that system is very effective in preventing defects from being passed to next process which reduces Reworks, Scrap, and Wrong shipments.