IDSY 1110 Syllabus
Subject Code
IDSY
Course Number
1110
Course Title
Industrial Motor Controls I
Prerequisites
None
Corequisites
Terms Offered
Offered Fall and Spring
Credit Hours
(2-8-5)
Course Description
This course introduces the fundamental concepts, principles, and devices involved in industrial motor controls; theories and applications of single- and three-phase motors; wiring motor control circuits' and magnetic starters and braking. Topics include, but are not limited to, motor theory and operating principles, control devices, symbols and schematic diagrams, NEMA standards, Article 430 NEC, and preventative maintenance and troubleshooting.
Course Outcomes
Industrial Safety
Order Description
1 Perform Wear approved PPE (Shoes, eye wear, hard hats.
2 Perform Mount a lock-out tag for use with a padlock.
Motor Theory and Operating Principles
Order Description
1 Describe the laws of magnetism and their application to AC and DC motors.
2 Compare the operating principles of AC motors with those of DC motors.
3 Compare the characteristics of AC motors with those of DC motors.
4 Define terms associated with electric motors.
5 Identify the component parts of an electric motor.
6 Name different types of AC and DC motors.
7 Determine voltage, amperage, speed, horsepower, NEMA class, and environmental requirements of
electric motors using data from the motor name plate.
Principles of Motor Controls
Order Description
1 Name the three classes of DC motors.
2 Describe the operating characteristics of the three classes of DC motors.
3 Identify the components of DC motors.
4 State the function of starter devices in DC motors.
5 Name the types of manual DC motor starters.
6 Identify the components used in DC motor control.
7 Name the types of automatic DC motor starters.
8 Describe the methods of controlling the speed of DC motors.
9 Name the three classes of AC motors.
10 Describe the operating characteristics of the three classes of AC motors.
11 Identify the components of AC motors.
12 State the purpose of controllers in AC motor circuits.
13 Name the types of AC motor controllers.
14 Identify the components used in AC motor controls.
15 Describe the methods used to provide circuit protection in AC motor control applications.
Control Devices
Order Description
1 Identify and describe various devices used for sensing temperature, pressure, level, motion, and
position.
2 Identify and describe the devices used in switching circuits.
3 Identify and describe the devices used for motor overload protection.
4 Identify and describe the devices used for ground fault and short circuit protection.
5 Identify and describe various other devices used in motor control circuits.
Symbols and Schematic Diagrams
Order Description
1 Identify and draw the various symbols for components and conditional state of devices used in motor
control circuits.
2 Describe a typical motor control schematic diagram.
3 Draw a schematic diagram of a motor control circuit.
4 Interpret schematic diagrams of various motor control circuits.
Magnetic Starters and Braking
Order Description
1 Wire control transformers for the various 24V, 120V, and 230V secondary control voltages used in the
industry.
2 Wire an across-the-line motor starter using a start-stop switch.
3 Wire a forward/reverse motor starter using a stop/forward/reverse switch.
4 Wire a magnetic starter for a motor control using a run/jog/stop switch without a control relay.
5 Wire a magnetic starter for a motor control using a control relay and a run/jog/stop switch.
6 Identify and describe the different dynamic, plugging, electronic, electric, and manual types of motor
braking devices used in the industry.
7 Install a braking system on a motor.
NEMA Standards
Order Description
1 Identify the purpose of NEMA standards for electric motors.
2 Relate NEMA design codes to operating characteristics of electric motors.
3 Describe NEMA standards for types of electric motor enclosures.
Article 430 NEC
Order Description
1 Calculate the size for branch circuit conductors covered by NEC selection 430-22.
2 Calculate the size for feeder circuit protection covered by NEC section 430-22.
3 Calculate the size for ground fault/short circuit protection (fuses and circuit breakers) using locked
motor current, Table 430-152, and Article 430-52 of the NEC.
4 Calculate the size of overload protection according to sections 430-74 and 430-34 of the NEC.
5 Size equipment grounds according to Table 250-95 of the NEC.
6 Size and locate the motor disconnects according to NEC Part H, Article 430.
7 Size controllers according the NEMA standards.
8 Calculate the size of control conductors according to Article 430-72 of the NEC.
9 Size raceways for motor circuits using Chapter 9: Table 3A, 3B, 3C, 4, and 5 of the NEC.
Preventative Maintenance and Troubleshooting
Order Description
1 Perform a visual inspection using procedures described in the manufacturer's service manual.
2 Lubricate a motor according to procedures described in the manufacturer's service manual.
3 Clean a motor according to procedures outlined in the manufacturer's service manual.
4 Discuss techniques for troubleshooting electric motors.
Laboratory Safety Procedures and Practices
Order Description
1 Review general safety standards for working with electrical components in the laboratory.
2 Identify and discuss the potential safety hazards and precautions of working with specific electric
motors and controlling devices.