EBK 3N3-EBK: INDUSTRIAL MOTOR CONTROL
7th Edition
ISBN: 9780176919962
Author: Herman
Publisher: VST
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 28, Problem 3RQ
The two stop push buttons in Figure 28–2 are connected in series with each other. What would be the action of the circuit if they were connected in parallel, as shown in Figure 28–6?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
The reversing motor,which is controlled by two power relays,can be rotated in both directions as shown in the figure beiow.When the motor is mechanically combined with a lead screw,the rotary motion is converted to a linear one,such as the one moving lef tor right on the worktable in the layout.The desired direction of rotation is selected via the two STAFIT buttons,respectively.The limit switches LS1 and LS2,located at the two extreme motion limits,ensure 1-rqtf we forget to stop the movement of the worktable,then it will stop automatically, and the mechanism of the layout will not be destroyed.Draw the circuit of automation.
This is the problem number 2 and answer the question 3 thank you
can you write the angles and loops for the first mechanism like they did in the second one
Chapter 28 Solutions
EBK 3N3-EBK: INDUSTRIAL MOTOR CONTROL
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- Refer 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_forwardRefer to the schematic diagram in Figure 318. Assume that the motor is not running. When the third speed push button is pressed, the motor starts in its lowest speed. After a delay of 3 seconds, the motor accelerates to second speed and 3 seconds later to third speed. After a period of about 1 minute, the fourth speed push button is pressed, but the motor does not accelerate to fourth speed. Which of the following could cause this problem? a. Control relay CR2 coil is open. b. S2 contactor coil is open. c. CR3 coil is shorted. d. S3 contactor coil is open.arrow_forward1. In the drilling process shown in Figure 1, there are three cylinders in which cylinders A and B are used to clamp the work piece and Drill cylinder is used to lower and raise the drill. The sequence of operation is as follows: activate the direction control valve to start the process, Cylinder A and Cylinder B clamps the workpiece and then activate the second directional control valve to drill cylinder lowers the drill and raises afterwards. Once the drill is raised, cylinder A and cylinder B retracts. sensors Drill-high Drill Drill-Low Part / Material Cylinder A Cylinder B A+ B+ sensors Figure 1: Drilling Process а) Design the Hydraulic Circuit with proper labeling. Include the allocation list and the components required b) Draw the functional diagram/step diagramarrow_forward
- Refer to the circuit shown in Figure 16-11. Assume that the platform is located on the lower floor. When the UP push button is pressed, the platform rises. When the platform reaches the upper floor, however, the pump does not turn off but continues to run until the overload relay opens the overload contacts. Which of the following could cause this problem? a. The solenoid valve opened when limit switch LS1 opened. b. The UP push button is shorted. c. Limit switch LS1 did not open its contacts. d. Limit switch LS2 contacts did not reclose when the platform began to rise.arrow_forwardRefer to Figure 4-79 to answer the following questions. Find all the missing values. Figure 4-79 practice problems 1 through 6.arrow_forwardDraw the P-V and T-S diagramsarrow_forward
- Refer to the figure below. Read the feature control frame in the figure and write it out below. 0.010MABMCMarrow_forwardRefer to the circuit shown in Figure 25–5. Assume that timer TR1 is set for a delay of 10 seconds and timer TR2 is set for a delay of 5 seconds. When the START button is pressed, the motor starts. After 10 seconds the S1 contacts open and the motor continues to accelerate, but never reaches full speed. After a delay of about 30 seconds, the motor trips out on overload. Which of the following could cause this problem? TR1 coil is open. S2 coil is open. S1 coil is open. R coil is open.arrow_forwardIn the drilling process shown in Figure 2, there are three cylinders in which cylinders A and B are used to clamp the work piece and Drill cylinder is used to lower and raise the drill. The sequence of operation is as follows: Start push button is used to start the process, Cylinder A and Cylinder B clamps the workpiece simultaneously and then drill cylinder lowers the drill and raises afterwards. Once the drill is raised, cylinder A and cylinder B retracts simultaneously. sensors Drill-high Drill Drill-Low Part / Material Cylinder A Cylinder B B+ sensors B Figure 2: Drilling Process For the above given drilling process: a) Provide the allocation List for the given application. b) Draw the grafcet and extract the grafcet equation. Obtain the ladder program from the grafcet equations.arrow_forward
- How to perform zero point reset?arrow_forwardThe roller track is to be swiveled by means of a double-acting cylinder. The signals to extend and to retract are given from separate push buttons. The cylinder is to remain in the position indicated by the last signal until an opposing signal is given. Draw the pneumatic circuit diagram using ISO symbols and connecting the ports with solid lines. (The positional sketch is the attached picture)arrow_forwardSketch the following systems: one pipe, two-pipe direct return, and two-pipe reverse return.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Understanding Motor ControlsMechanical EngineeringISBN:9781337798686Author:Stephen L. HermanPublisher:Delmar Cengage Learning
Electrical Transformers and Rotating MachinesMechanical EngineeringISBN:9781305494817Author:Stephen L. HermanPublisher:Cengage Learning
Refrigeration and Air Conditioning Technology (Mi...Mechanical EngineeringISBN:9781305578296Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill JohnsonPublisher:Cengage Learning
Understanding Motor Controls
Mechanical Engineering
ISBN:9781337798686
Author:Stephen L. Herman
Publisher:Delmar Cengage Learning
Electrical Transformers and Rotating Machines
Mechanical Engineering
ISBN:9781305494817
Author:Stephen L. Herman
Publisher:Cengage Learning
Refrigeration and Air Conditioning Technology (Mi...
Mechanical Engineering
ISBN:9781305578296
Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher:Cengage Learning
The Robot Revolution: The New Age of Manufacturing | Moving Upstream; Author: Wall Street Journal;https://www.youtube.com/watch?v=HX6M4QunVmA;License: Standard Youtube License