![]() Once the box is full, momentarily pressing the Start Switch will move the box off the conveyor and bring a new box into position. Filling should stop when the Level sensor goes true. ![]() With the box in position and the conveyor stopped, open the solenoid valve and allow the box to fill. Stop the conveyor when the right edge of the box is first sensed by the proxy-sensor. The FULL light will energize when the box is full and will remain that way until the box has moved clear of the proxy-sensor.Įxercise #2 - Container Filling with Manual RestartĪlter or re-write your program so that it incorporates the following changes: The FILL light will be energized while the box is filling. The RUN light, Conveyor Motor and Solenoid will de-energize whenever the system is halted via the STOP switch. The RUN light will remain energized as long as the system is operating automatically. ![]() The sequence can be stopped and re-started at any time using the panel mounted Stop and Start switches. Ensure that the following details are also met: ![]() (This exercise is based on LogixPro PLC simulator)Ĭompletely design and de-bug a ladder control circuit which will automatically position and fill the boxes which are continuously sequenced along the conveyor.
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