Download This course is mainly motor control. There are only two labs. Oct 2nd

This course is mainly motor control. There are only two labs. Oct 2nd, and Oct 23rd. Test on Oct 30th Final November 20th Motor Control ‐ Usually one of several standard nominal system voltages. eg. 120/240 3‐Wire. 208/120, 460/277 "Y" 240, 480, 600 V ‐ Maximum current is set by the wire size. ‐ Fuse or breaker limits the current. ‐ Other Courses go more into detail on this. Starting: ‐ Only copper resistance limits current in a stationary motor. ‐ Power must be added in a controlled way to protect the system. ‐ Other courses go more into detail on this. Speed Control: ‐ It is not always needed. ‐ Many times motors run at a specific speed at all times. ‐ If control is needed, it is different between AC voltage and DC voltages. ‐ General speaking, DC systems vary the voltage, and AC systems vary the frequency. ‐ This is not feedback. ‐ Covered in this course. Motor: ‐ The motor reacts to electrical energy (Voltage & Current) by producing mechanica; energy (torque on turning shaft) ‐ There are relationships between electrical values and mechanical values. ‐ Covered in this course. Speed measurement/feedback: ‐ If load varies, and speed must be fixed, feedback is used to smooth operations. ‐ No details in this course. Serial Communications ‐ RS232 ‐ USB ‐ Mostly a theory course. ‐ Practical hook up in other courses.