Study on Response time of Roller Type Limit Switch with Reed Type Limit Switch in Pneumatic Automation

Abstract

The original work of comparing the performance of Reed Type Limit switch with the Roller Type Limit Switch was done at the Process Automation Laboratory available in the Mechanical Engineering Department of VSVN Polytechnic College. The Automatic operation of Double Acting Cylinder was done using Basic Pneumatic Circuit with Mechanically Roller operated Limit switch. The time taken for completion of 10 cycles of the Pneumatic Circuit (Response Time) is measured for various Air Pressures. (2Bar, 3Bar & 4Bar) Similarly, the Automatic operation of the Double Acting Cylinder was done using PLC Circuit with Electrical Reed type Limit switch. The time taken for completion of 10 cycles of the Electro Pneumatic Circuit (Response Time) is measured for various Air Pressures. (2Bar, 3Bar & 4Bar) The same circuits are also made using FluidSim Simulation software and the operation characteristics curves were plotted using the above Software. Based on the original data & simulated data, the inferences are discussed in this paper. The above study would be useful in selecting the type of Pneumatic Automation that can be utilized for various industries.