Use of relays and contactors with plc and without plc i.e hardwired controls. The concept of no (normally open), normally close (nc), dol /r-dol starters, star to delta starters, soft starters of ac machines is practically explained in this module. Timer relays and different types of sensors are interfaced with plc. Ac motor and its workingintroduction to stepper and servo motormotor control circuit, interlocking circuitintroduction to ac drives & applicationdrive parameter programmingvfd controlling through keypad , external switch and plcbasic criteria for drives selectiondrive control panel system designingcreating and managing workspaceerasing object, cancelling & undoing a commandobject selection methodsetting unit and limitsdrawing arc, rectangle , ellipses, polygonedit , move, copy& paste commandoffset, rotate , & scale, fillet, chamfering , trim , extend stretch & lengthen commandarraying , mirroring, breaking, dividing & joiningzooming & panning drawingelectrical wiring designing through autocadcontrol panel designing through autocaddiscussion on type of switches;- pb, e- pb, toggle switches, selector switches, limit switchesintroduction to contactor and its workingminiature circuit breakermolded case circuit breakerover load relaymotor protection circuit breakerbasic of control & power drawinggeneral wiring guidelines in a panel designingpanel indicator (multifunction meter , ammeter, voltmeter)preparation of general arrangement diagrams, busbar sizingelectrical protectiongeneral wiring guidelines / practicesload management (connected load, running load , load factor)maintenance & troubleshooting of control circuit in live panels.Vfd-clock