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itches have automatic return. The operator must operate the uld not be necessary to hold the switches in for the conveyor b ill

itches have automatic return. The operator must operate the uld not be necessary to hold the switches in for the conveyor b ill

Essentials Of Investments
Essentials Of Investments
11th Edition
ISBN:9781260013924
Author:Bodie, Zvi, Kane, Alex, MARCUS, Alan J.
Publisher:Bodie, Zvi, Kane, Alex, MARCUS, Alan J.
Chapter1: Investments: Background And Issues
Section: Chapter Questions
Problem 1PS
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You have a 3-phase motor, M1, which drives a conveyor belt. The conveyor belt is operated with switches S1 (Start- forward), S2 (Start- back) and S0 (Stop). S1 and S2 are pressure switches with work contact (NO), SO is pressure switch with rest contact (NC). All switches have automatic return. The operator must operate the switches with one push to start the conveyor belt, it should not be necessary to hold the switches in for the conveyor belt to start. In order to change direction, the operator must first press stop, it will then take 5 seconds before it is possible to start the belt again. a. Draw the main flow diagram. Remember that the motor must have a direction of rotation reverser b. Draw control flow diagram
Transcribed Image Text:You have a 3-phase motor, M1, which drives a conveyor belt. The conveyor belt is operated with switches S1 (Start- forward), S2 (Start- back) and S0 (Stop). S1 and S2 are pressure switches with work contact (NO), SO is pressure switch with rest contact (NC). All switches have automatic return. The operator must operate the switches with one push to start the conveyor belt, it should not be necessary to hold the switches in for the conveyor belt to start. In order to change direction, the operator must first press stop, it will then take 5 seconds before it is possible to start the belt again. a. Draw the main flow diagram. Remember that the motor must have a direction of rotation reverser b. Draw control flow diagram
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