Design the Relay ladder logic

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Hani Abdullah

Joined Jan 24, 2014
4
Design the relay ladder logic for the given question using the attached figure and the given information.

In the figure, when a part is placed(manually) on a conveyer at position 1, it automatically moves to position 2 (the conveyer is started). When the part reaches position 2, it is stopped and is stamped. The stamp works as follows: the down solenoid is energized until the down limit switch is actuated. Then the up solenoid is energized until the up limit switch is actuated. After the part is stamped, it automatically moves to position 3, where it is manually removed. Assume only 1 part is on the conveyor at a time and that "circles" up, down at the top are the up, down solenoids.
 

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