f16bmathis
Member
I have a conveyor with 6 stops and PE's in front and back of each stop. Normally cartons cross in front of all this one at a time, about 5 seconds apart. If our packer gets shut down, we want the cartons to back up to 8 cartons, then have stop 1 extend, as the next set of 8 cartons backs up, extend stop 2, ect. But when the packer is ready, I want the first stop to release its 8 carton load to the packer, then when it's clear, release stop 2 and not crush a carton as it passes stop 1, same for the other stops as it unloads.
My thoughts were using the entry and exit PE's of each stop as a condition of a timer where the first PE has to be clear for an amount of time (based on conveyor speed) before allowing the stop to extend, *clear*. The exit PE on a timer to extend the stop if it is *clear* and is blocked for a time (full), meaning the section is full of 8 cartons.
The tricky part is when an 8 carton section is released, and blocks the exit PE of the next section, will it not extend because of the *clear*, and will it close when it is past the *clear*.
I think this will work, but then I'm not good at this stuff. Thoughts?
Thanks for helping!
My thoughts were using the entry and exit PE's of each stop as a condition of a timer where the first PE has to be clear for an amount of time (based on conveyor speed) before allowing the stop to extend, *clear*. The exit PE on a timer to extend the stop if it is *clear* and is blocked for a time (full), meaning the section is full of 8 cartons.
The tricky part is when an 8 carton section is released, and blocks the exit PE of the next section, will it not extend because of the *clear*, and will it close when it is past the *clear*.
I think this will work, but then I'm not good at this stuff. Thoughts?
Thanks for helping!