RELAY, TIMER & SENSOR INTERFACING

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 working
  • Introduction to Stepper and Servo motor
  • Motor control circuit, interlocking circuit
  • Introduction to AC Drives & application
  • Drive Parameter programming
  • VFD controlling through Keypad ,External switch and PLC
  • Basic Criteria for drives selection
  • Drive Control Panel system designing

  • Creating and managing workspace
  • Erasing Object, Cancelling & Undoing a command
  • Object selection method
  • Setting unit and limits
  • Drawing arc, rectangle , ellipses, polygon
  • Edit ,Move, copy& paste command
  • Offset, rotate ,& scale, fillet, Chamfering ,trim , Extend Stretch & lengthen command
  • Arraying ,Mirroring, Breaking, dividing & joining
  • Zooming & Panning drawing
  • Electrical Wiring Designing through Autocad
  • Control panel designing through Autocad

  • Discussion on Type of Switches;- PB, E- PB, Toggle Switches, Selector switches, Limit Switches
  • Introduction to Contactor and it’s Working
  • Miniature Circuit Breaker
  • Molded Case Circuit Breaker
  • Over Load Relay
  • Motor Protection Circuit Breaker
  • Basic of Control & power drawing
  • General wiring guidelines in a panel Designing
  • Panel Indicator (Multifunction meter ,ammeter, Voltmeter)
  • Preparation of general arrangement diagrams, busbar sizing
  • Electrical Protection
  • General wiring guidelines / practices
  • Load management (connected load, running load ,load factor)
  • Maintenance & troubleshooting of control circuit in live panels.
  • vfd-clock

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