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Electrical Controls and Automation

EET 215

Electrical Controls and Automation

EET 215

Course Description

Prerequisites: Prerequisites: EET 235 with a minimum "C" grade.

Studies industrial control logic design and application with emphasis on ladder logic, relay and T-switch logic formats. Uses Modicon micro 84 to study programmable controller logic. Covers 4-layer semiconductors (SCRS-TRIACS-UJTS-PUTS-DIACS), their characteristics and applications. Studies application of electronic control systems to machine processes with emphasis on transducers, I/O interfaces, control processors and output drivers. (60-30)

Outcomes and Objectives

Demonstrate an understanding of conventional control concepts.

Objectives:

  • Analyze basic sequential machine control circuits
  • Design basic sequential machine control circuits
  • Generate ladder diagrams for sequential machine control
  • Generate logic circuits for sequential machine control
  • Generate a sequence table, truth table and Boolean expression from a ladder diagram
  • Generate a sequence table, truth table and Boolean expression from a logic circuit
  • Draw standard industrial control symbols
  • Analyze motor starter control circuits

Demonstrate an understanding of 4-layer semiconductor devices.

Objectives:

  • Describe the basic operation of a SCR, TRIAC, UJT, PUT and DIAC
  • Calculate the power capability of a SCR, TRIAC, UJT, PUT and DIAC
  • Analyze a phase angle control power system
  • Design a phase angle control power system

Demonstrate an understanding of basic control systems.

Objectives:

  • Describe the operation of an open loop control system
  • Analyze the operation of an open loop control system
  • Describe the operation of a closed loop control system
  • Analyze the operation of a closed loop control system

Demonstrate an understanding of transducers.

Objectives:

  • Describe the operation of a linear displacement (LVDT) transducer
  • Describe the operation of angular and rotational position transducers
  • Describe the operation of a force transducer
  • Describe how to interface analog and digital transducers to a control system

Demonstrate an understanding of programmable controllers.

Objectives:

  • Describe the operation of a programmable controller
  • Describe programmable controller inputs and outputs
  • Analyze the operation of a programmable controller
  • Design a sequential machine control circuit using a programmable controller