We have no experience with the Carbide Motion board and it's not in the Device list in the X-Loader, so it may not work. I assume you tried all Devices? BUT, J-Tech Photonics claims it does work on this page: http://jtechphotonics.com/?page_id=3145
I would be concerned the pinout may not be the same with the different grbl versions considering the Carbide Motion board is proprietary. However, the pins could be the same, but I can't answer that question either. I can only suggest contacting J-Tech about this as they seem to know more about it then we do.