3. Examine the circuit in Figure 18-12.A. Describe the sequence of events that occur asthe directional control valve is shifted fromone position to the other.B. If the motor only rotates in one direction, whatchanges could you make to the circuit? Explain.C. Redraw the circuit to allow the operator tocontrol the speed of the motor rotation in theclockwise direction. What changes did youmake? Why? Chapter 18 Controlling a Pneumatic System451To circuit sectionoperated at maximumworkstation pressureMotor operated ata pressure below theworkstation settingGoodheart-Willcox PublisherFigure 18-12. A pressure lower than that selected as the workstation pressure may be easily provided by the addition of asecond pressure regulator.

Given : To find: What happens when directional control valve changes its position

Examine the circuit in Figure 18-12. A. Describe the sequence of events that occur as the directional control valve is shifted from one position to the other. B. If the motor only rotates in one direction, what changes could you make to the circuit? Explain. C. Redraw the circuit to allow the operator to control the speed of the motor rotation in the clockwise direction. What changes did you make? Why?

Examine the circuit in Figure 18-12. A. Describe the sequence of events that occur as the directional control valve is shifted from one position to the other. B. If the motor only rotates in one direction, what changes could you make to the circuit? Explain. C. Redraw the circuit to allow the operator to control the speed of the motor rotation in the clockwise direction. What changes did you make? Why?

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

3. Examine the circuit in Figure 18-12.
A. Describe the sequence of events that occur as
the directional control valve is shifted from
one position to the other.
B. If the motor only rotates in one direction, what
changes could you make to the circuit? Explain.
C. Redraw the circuit to allow the operator to
control the speed of the motor rotation in the
clockwise direction. What changes did you
make? Why?

Chapter 18 Controlling a Pneumatic System
451
To circuit section
operated at maximum
workstation pressure
Motor operated at
a pressure below the
workstation setting
Goodheart-Willcox Publisher
Figure 18-12. A pressure lower than that selected as the workstation pressure may be easily provided by the addition of a
second pressure regulator.

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