Banner B3-1500 Problem

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The problem I'm having is the unit senses an envelope, so it should keep the glue cylinder engaged until the next cycle, when the 10 degree segment makes its way around again to the inside proximity sensor. That's not happenning. Once the envelope passes the photo eye, the cylinder retracts. When there is a constant supply of envelopes, the glue cylinder should remain engaged through the entire supply, and not engage/disengage/engage/disengage. When there is a series of missing envelopes, the glue cylinder should remain retracted until an envelope finally appears.

Thanks!

Hello Envelope Guy: From the visual diagram you provided along with your explanation on what is exactly happening it seems to be a that the devices are fighting each other for current simultaneously. In other words, the system is definitely wired wrong. Unfortunately, I do not have a schematic to look at in order to give you a precise answer so I am left with the knowledge of basic electrical theory to at least help guide you to a better understanding of why the system is behaving this way. In short, some of the devices appear to be properly grounded while others are not and some the devices seem to be attached to more than one power supply. There may be a logical reason for this but without a schematic it is perceived as unnecessary. The glue cylinder is probably not staying engaged because of the lack of current flow to drive the devices. Yes, the potential difference is not affected but the currrent may be in this particular situation. Remember, you can have a potential difference without current but you cannot have current without a potential difference. Furthermore, every system supplies a limited amount of current within precise specifications. One you have the details on the amount of current needed to drive the devices in question, I recommend that you take current measurements and analyze the results to see if all connections are within the recommended tolerance specifications. Hope this helps Best regards, AskQ

Hi AskQ,

Thanks for your reply. I got it figured out. The wiring was correct after all. The problem was in a mini-din connector for the photoeye. I'm not sure why it was the problem as an ohm reading didn't show anything wrong, but when I eliminated it, the circuit worked as it should.

Thanks for your time in replying.