LogixPro PLC Lab Manual for Programmable Logic Controllers
5th Edition
ISBN: 9781259680847
Author: Frank D. Petruzella
Publisher: McGraw-Hill Education
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Question
Chapter 6, Problem 10RQ
Program Plan Intro
Switch:
- A switch refers to an electrical device which can make or break an electrical circuit.
- Switches can be operated manually or by some sensing element such as pressure, temperature, or flow.
- A switch consists of one or more sets of contacts that can be operated simultaneously, sequentially, or alternately.
Explanation of Solution
b.
NC pushbutton switch:
- The abbreviation NC stands for a Normally Closed pushbutton switch.
- It will be initially at closed contact and will be opened when the switch or coil is energized...
Explanation of Solution
c.
Break-make pushbutton switch:
- Break-before-make pushbutton is a switch whose top level section contacts are Normally Closed and bottom level section contacts are Normally Open.
- The top level contacts will open before the botto...
Explanation of Solution
d.
Three-position selector switch:
- In order to open and close the contacts of an attached contact block, a selector switch operator is rotated.
- The operator knob is turned to right or left to establish a switch position.
- Selector switch consists of two or more selector positions...
Explanation of Solution
e.
NO limit switch:
- Normally Open limit switch refers to a commonly used industrial control device.
- It is used to operate when a predetermined limit is reached.
- It is started by the contact with an object such as a cam...
Explanation of Solution
f.
NC temperature switch:
- NC temperature switch refers to a switch which is activated at specific temperature.
- Applications of temperature switches include maintaining the desired temperature range of solids, liquids, gases, or air...
Explanation of Solution
g.
NO pressure switch:
- NO pressure switch refers to a switch which is activated at specific pressure.
- It is used to control the pressure of gases and liquids...
Explanation of Solution
h.
NC level switch:
- NC level switch is designed to sense liquid level in vessel.
- It provides automatic control for motors which transfers liquids from sumps into tanks...
Explanation of Solution
i:
NO proximity switch:
- NC proximity switch does not need any physical contact to sense the presence or absence of a target.
- Here, any object such as vibrations, liquids, or chemicals near to the proximity switch range will respond and act as ON-OFF switch...
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Chapter 6 Solutions
LogixPro PLC Lab Manual for Programmable Logic Controllers
Ch. 6 - Prob. 1RQCh. 6 - Prob. 2RQCh. 6 - Prob. 3RQCh. 6 - Prob. 4RQCh. 6 - Prob. 5RQCh. 6 - Prob. 6RQCh. 6 - Prob. 7RQCh. 6 - Prob. 8RQCh. 6 - What do the abbreviations NO and NC represent when...Ch. 6 - Prob. 10RQ
Ch. 6 - Prob. 11RQCh. 6 - Prob. 12RQCh. 6 - Compare the operation of a photovoltaic solar cell...Ch. 6 - What are the two basic components of a...Ch. 6 - Prob. 15RQCh. 6 - Give an explanation of how a scanner and a decoder...Ch. 6 - Prob. 17RQCh. 6 - Prob. 18RQCh. 6 - Prob. 19RQCh. 6 - Prob. 20RQCh. 6 - Prob. 21RQCh. 6 - Prob. 22RQCh. 6 - Prob. 23RQCh. 6 - Prob. 24RQCh. 6 - Prob. 25RQCh. 6 - Prob. 26RQCh. 6 - Prob. 27RQCh. 6 - Prob. 28RQCh. 6 - Prob. 29RQCh. 6 - Prob. 30RQCh. 6 - Prob. 31RQCh. 6 - Prob. 32RQCh. 6 - Prob. 33RQCh. 6 - Prob. 1PCh. 6 - Prob. 2PCh. 6 - Prob. 3PCh. 6 - Prob. 4PCh. 6 - Design a PLC program and prepare a typical I/O...Ch. 6 - Prob. 6PCh. 6 - Prob. 7PCh. 6 - Prob. 8P
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