I'm working on a project which is to run a 8f Bridgeport mill feed controller to run with a Minarik motor drive controller and a set of relays. I am basically copying a set up that I found online. https://www.atechfabrication.com/information/Bridgeport_Feed_Controller.htm I followed the wiring diagram on the web page and when I attempted to run it it wouldn't work. Eventually I found out the it blew the fuse I had in place for the input L1 voltage. I swapped out the fuse thinking I may have accidentally shorted out the wires while moving things around and the second fuse blew. At this point I knew I had an issue I just was not sure if the problem was at the board or the motor and relays that I had set up. I unplugged everything from the board, changed the fuse and only connected input power, it still blew the fuse. At this point I suspect an issue with the board. I had purchased the board used from ebay. I was hoping to get some feedback and ideas on how to verify if the board is any good or confirm if in fact it is shorted. Any trouble shooting tips would be greatly appreciated.
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