Understanding Motor Controls
3rd Edition
ISBN: 9781305498129
Author: Stephen L. Herman
Publisher: Cengage Learning
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Chapter 8, Problem 1RQ
To determine
Identify if the component is normally open or normally closed when the component is to be used for the function of start.
Expert Solution & Answer
Explanation of Solution
There are circumstances where it is desirable to have more than one start/stop push button when operating a motor.
When a component is used for the function of start then the component is generally open and is connected parallel to the existing start button. If either of the start button is pressed, the circuit will be completed and the coil will be energized.
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Question#01 (Serial number=26.2)
Please provide justified answer for all three sub parts asap to get a upvote
Probid solution with all steps and details for upvote
Using a double-acting cylinder a work piece is removed and tipped onto a conveyor belt.
Following are the sequence of operations
1.
The operation is to be started using a push button (use the label START PB). Include a stop push button (use the label STOP PB) to stop the
process at any time. (Use Memory ON circuit)
2.
An acknowledgement signal (S1- Limit switch) is required when the piston is fully extended, to ensure that the work piece has been tipped onto
the belt.
3.
The extension should be slower than the retraction (use flow control valve)
4.
The return stroke should be automatic.
a.
Design the Electro- Hydraulic Circuit with proper labeling. Include the components required
b.
Draw the Displacement -step diagram & Displacement -time diagram (include Cylinder, START PB, STOP PB, DCV and S1)
Chapter 8 Solutions
Understanding Motor Controls
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