Concept explainers
Referring to the circuit shown in Figure 23–1, would it be possible to change the components that have been numbered with an 8 to a number 9, and the components that have been numbered with a 9 to a number 8, without affecting the operation of the circuit?
Whether it is possible to change the components that are numbered with an
Explanation of Solution
Consider that the schematic diagram shows the circuit operation and not the wiring of the components. The wiring diagram is drawn that is based on how the components are numbered, thus it shows how the wiring is done.
The components in schematic diagrams are numbered in the sequence of connection order.
Refer to the circuit shown in Figure 23-1 as shown in the text book.
Consider that the machine consist of the three motors and when it is started there is a time delay of 10 sec. As the start button is pressed the circuit gets completed with the start button and the motor coil and
This shows that
The number changing of the components is not practical as each of the components is assigned a specific number in a schematic diagram.
Consider that the two relays one and two are interchanged with their position then, then, the motor M3 works when the relay TR1 is closed and the M2 works only when the TR2 is closed.
Thus, the changing of the component numbers
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Chapter 23 Solutions
INDUSTRIAL MOTOR CONTROL
- Following the procedure discussed in Chapter 7, place wire numbers on the schematic in Figure 8–7. Place corresponding wire numbers on the components shown in Figure 8–8.arrow_forwardTo answer the following questions refer to the circuit shown in Figure 4110. Assume that the third speed push button is pressed and the motor starts in its first or lowest speed. After a delay of 3 seconds, the motor accelerates to its second speed, but never accelerates to its highest or third speed. Which of the following could cause this problem? a. CR coil is open. b. Coil 2TR is open. c. Coil 1TR is open. d. Coil 1S is open.arrow_forwardRefer to the circuit shown in Figure 15-6. The STOP button is shown to be an emergency STOP button. What does the symbol used for the STOP button actually represent?arrow_forward
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- Refer to the circuit shown in Figure 247. Assume that all timers are set for a delay of 5 seconds. When the START button is pressed the motor starts in its lowest speed. After a delay of over 10 seconds, the motor is still running in the lowest speed. Which of the following could cause the problem? a. TR1 coil is open. b. TR1 coil is shorted. c. S2 coil is open. d. S1 coil is shorted.arrow_forwardRefer to the circuit shown in Figure 33–7. When the low speed push button is pressed, the motor begins to run in low speed. When the high speed push button is pressed, the motor stops running. Which of the following could cause this problem? The 1L contactor coil is open. H contactor coil is open. PR relay coil is open. The 2L contactor coil is open.arrow_forwardDraw clearly the Kinematic diagram and the degree of freedom 100 N 40 mm 75 mm 55 mm 10 D 300 mm 90 mm 60 mm 65 mm 100 N Bolt Cutterarrow_forward
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