INDUSTRIAL MOTOR CONTROL
7th Edition
ISBN: 9780357670590
Author: Herman
Publisher: CENGAGE L
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Question
Chapter 65, Problem 1RQ
To determine
The way in which pin 1 of an in line, integrated circuit is identified.
Expert Solution & Answer
Explanation of Solution
Consider the circuit shown in Figure 65-1 in the textbook.
The timer 555 IC is an integrated circuit that is used in various application like, pulse generation, oscillator and many more.
The pin 1 is identified in the integrated circuit as it is notch at one end or dot by one pin.
Therefore, the notch or dot helps in the identification in pin 1 of 555 timer.
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Students have asked these similar questions
Define the term redundant?
Name
Section 5-2: Line Diagrams-Signals,
Decisions, and Actions
In the following application, a temperature switch controls a heating contactor and a flow switch is used to
ensure there is enough air flow. If there is not enough air flow, an alarm is sounded. Complete the required
information.
1. List all the signal devices in the circuit.
2. List all the action devices in the circuit.
3. List the decision part of the circuit that automatically sounds the alarm if there is a problem.
4. When the heating element is on during normal operation, is the flow switch open or closed?
CIRCULATING
2
L1
FAN
TEMPERATURE
SWITCH
TR
HEATING
ELEMENTS
FLOW
SWITCH
-HOT AIR
PADDLE
AIR FILTER
NORMALLY CLOSED
FLOW SWITCH
65
ALARM
(SOUNDS IF NO FLOW FOR
15 SECONDS OR MORE)
Date
HEATING
CONTACTOR
TR
ON-DELAY
TIMER
SUPPLY AIR
COLD AIR
(3) TIME SET= 15 SEC
© 2014 American Technical Publishers, Inc.
All rights reserved
Q1
---- -
Reduce the combinational logic circuit in figure 1 to minimum form.
Figure 1
B
C
D
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