Electric Motor Control
10th Edition
ISBN: 9781133702818
Author: Herman
Publisher: CENGAGE L
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Textbook Question
Chapter 6, Problem 4SQ
Select the best answer for each of the following.
A single-break control is a
a. heavy-duty selector switch.
b. single-circuit push button.
c. standard-duty selector switch.
d. double-circuit push button.
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? turn loads fully ON or fully OFF. a. Analog circuits b. Contactors c. Digital circuits d. Mechanical relays
7. Which statement is true for the process-control relay ladder diagram shown in the figure?
A. The pressure switch, temperature switch, and push button must be closed for the motor to start.
B. With the temperature switch closed, the motor will start once the push button is pressed.
C. With the pressure switch closed and the push button released, the motor will start.
D. Only the temperature switch has to close for the motor to start.
Chapter 6 Solutions
Electric Motor Control
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.Similar questions
- Convert the control circuit only, Figure 2111, from the wiring diagram to an elementary diagram. Include the limit switches (RLS, FLS) as operating in the control circuit.arrow_forwardWhat are some applications of temperature-actuated switches?arrow_forward9- Controlled variable is the output of a. Plant b. Controller c. None of the above d. Error Detectorarrow_forward
- Explain by drawing how intermediate switch is working in ON and OFF position.arrow_forward13.a. A control system that doesn’t return position or velocity information from the motor back to the controlsystem is called a/anA. differential system.B. translated position system.C. directional system.D. open-loop system.13.b. You’re looking at a tachometer feedback signal on an oscilloscope. The waveform takes a long time togo to zero volts. This means that the system isA. critically dampened.B. at high speed.C. reversing direction.D. overdampened.arrow_forwardHow does an intermediate switch work?arrow_forward
- H.W: What instruction would you select for each of the following discrete input field devices to accomplish the desired task? (State the reason for your answer.) a. Turn on a light when a conveyor motor is running in reverse. The input field device is a set of contacts on the conveyor start relay that close when the motor is running forward and open when it is running in reverse. b. When a pushbutton is pressed, it operates a solenoid. The input field device is a normally open pushbutton. c. Stop a motor from running when a pushbutton is pressed. The input field device is a normally closed pushbutton.arrow_forwardAnswer all the following questionsarrow_forwardAll questions solve or skip i will dislike if not solve all Use Keybordarrow_forward
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