EMMT 2150 - Motor Controls

Academic Division:

Business, Industry and Technology

Academic Discipline:

Electrical Maintenance

Assistant Dean: Vincent Palombo PhD

2 Credit(s)
A study of the methods and devices used to control and protect DC and AC motors on industrial machinery. The student will understand, develop, interpret, and troubleshoot ladder diagram circuits. The student will gain experience of DC Series, Shunt and Compound motors, single-phase motors, 3- motors, Stepper motors, Servos, and universal motors. The student will learn about OSHA safety regulations regarding Lockout/Tagout procedures and safe shut down procedures. The student will also wire control circuits that utilize soft-start techniques and dynamic braking techniques. UG

2 Lab Hour(s)

1 Lecture Hour(s);

Required Concurrent Course(s): Take EMMT 0011 ;

College Wide Outcomes

College-Wide Learning Outcomes	Assessments - - How it is met & When it is met
Communication – Written
Communication – Speech
Intercultural Knowledge and Competence
Critical Thinking
Information Literacy
Quantitative Literacy

Student Learning Outcomes for Course

Outcomes	Assessments – How it is met & When it is met
1. Identify, read, design, build and troubleshoot various relay and motor control circuits utilizing the different control devices required for correct operation of the desired circuit.	Homework, quizzes, labs throughout the semester and the midterm and final exam.
2. Identify, describe and troubleshoot various overload protect circuits used in motor control circuits.	Homework, quizzes, labs throughout the semester and the midterm and final exam.
3. Identify the proper NEMA enclosure type of use for a given electrical application.	Homework, quiz and exams. (week 3, 7, and 15)
4. Identify and describe the differences between a three- phase Wye and a three-phase Delta motor.	Homework, quiz, labs and exams. (week 6, 7, and 8)
5. Identify, read, design, build and troubleshoot different types of DC and AC motor reversing circuits.	Homework, quizzes, labs throughout weeks 4-10 and the midterm and final exam.
6. Identify, describe, built, test and troubleshoot various soft-start DC and AC motor control circuits.	Homework, quizzes, labs throughout weeks 11 and 12 and the final exam.
7. Identify, describe, built, test and troubleshoot various dynamic and passive braking systems used in DC and AC motor control circuits.	Homework, quizzes, labs throughout weeks 13 and 14 and the final exam.
8. Convert a motor control circuit to a PLC program.	Homework, a quiz, and a lab during weeks 14 & 15 and the final exam.
9. Use DVMs, clamp on ammeters, tachometers, Meggers and current transformers to troubleshoot motor control circuits.	Throughout the semester in labs.
10. Use DVMs, clamp-on-ammeters, tachometers, torquemeters, and wattmeters to determine power factor, starting/stopping torque, inrush current, and running current.	Throughout the semester in labs.

Standard Grading Scale
93-100 A

90 - 92 A-

87- 89 B+

83 - 86 B

80 -82 B-

77- 79 C+

73 - 76 C

70 -72 C-

67- 69 D+

63 - 66 D

60 -62 D-

00- 59 F

Statement on Diversity
North Central State College believes that every student is a valued and equal member of the community.* Every student brings different experiences to the College, and all are important in enriching academic life and developing greater understanding and appreciation of one another. Therefore, NC State College creates an inclusive culture in which students feel comfortable sharing their experiences. Discrimination and prejudice have no place on the campus, and the College takes any complaint in this regard seriously. Students encountering aspects of the instruction that result in barriers to their sense of being included and respected should contact the instructor, assistant dean, or dean without fear of reprisal.

*Inclusive of race, color, religion, gender, gender identity or expression, national origin (ancestry), military status (past, present or future), disability, age (40 years or older), status as a parent during pregnancy and immediately after the birth of a child, status as a parent of a young child, status as a foster parent, genetic information, or sexual orientation,

Standard NCSC Course Policies
Important information regarding College Procedures and Policies can be found on the syllabus supplement located at this link