A SYSTEM FOR NON-CONTACT TYPE AUTOMATIC KICK OFF OPERATION AND CENTRALIZED CONTROL, MONITORING OF VARIOUS OPERATIONS OF COOLING BEDS AND/OR BAR SHEAR AREA OF MILLS

摘要

There is provided a system for non contact type HMD based automatic kick off operation at cooling beds at merchant mill and a method of its implementation. The system and method ensures the automatic detection of leading edge of moving hot bars and automatic kick off operation of bars at cooling beds. The new methods also have a comprehensive PLC network based centralized control automation system for cooling beds and bar shears at merchant mill. The method has been developed using two nos. of PLCs, six nos. of remote I/Os with new modified operator desks at Bar Shears and Control Pulpit-10. Remote I/Os are placed inside the bar shear operator desks in a very harsh environment. All the nodes are connected through cold redundant communication network eliminating all multicore control cables. Maintenance and safety are made simpler with the power to Individual solenoids having been routed through individual MCBs and fusible terminals.