Quote:
Originally Posted by KrazyCarl92
1. We had been using ferrule crimps on our RoboRIO power connection. After being eliminated in Pittsburgh, I had the opportunity to thoroughly check Team 3138's beautiful wiring where I noticed that they were using ferrules on every single connection EXCEPT the RoboRIO power connection. They stated that the clasp that screws in from the side only gets a single point of contact with a ferrule connector (due to the way the ferrule connector does not seat nicely within the RoboRIO), but that bare stranded wire actually provides a superior connection in this instance. Easy enough: we would trim our ferrule crimp off those wires, trim, then strip to establish a better RoboRIO power connection.
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Carl,
Can you explain this a little better? What clasp/screws are you referring to? It sounds like the brown connector on the RoboRio. If that is the case, I believe that connector does not have the screw contacting the wire directly. Instead it compresses an open contact inside the connector.
As I stated above, please use ferrules that are designed for the termination you are using. The PDP ferrules should be square in cross section to maximize contact and minimize resistance. If you use round (or solid wire) then WAGO states you must derate the contact by at least two wire sizes. A #12 will actually perform as a #16 due to the lack of contact area.