During the baked bean production in oven process, it should fulfill the following requirements 1) The bread conveyor should start 10 second after a momentary contact switch PB1 (NO) is pressed. 2) The bread conveyor may be stopped if NC contact is pressed (PB2). 3) After 4 hrs of operation the conveyor should be automatically stopped and illuminates a red light to indicate it is time for maintenance. 4) A NO push button switch (PB3) can be used for resetting maintenance timer after maintenance. Design a Ladder diagram for the above problem. Solve all the steps.

During the baked bean production in oven process, it should fulfill the following requirements 1) The bread conveyor should start 10 second after a momentary contact switch PB1 (NO) is pressed. 2) The bread conveyor may be stopped if NC contact is pressed (PB2). 3) After 4 hrs of operation the conveyor should be automatically stopped and illuminates a red light to indicate it is time for maintenance. 4) A NO push button switch (PB3) can be used for resetting maintenance timer after maintenance. Design a Ladder diagram for the above problem. Solve all the steps.

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter13: Heating Control Devices

Section: Chapter Questions

Problem 31RQ

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