There are a number of issues that could explain that. The first thing that comes to mind is:
- You may not have communication with the board? Make sure you establish communication using the UCxx Utility software.
- You may just need to invert the active high/low for the input pins.
You may want to open a support ticket in our website and we will give you a hand with this:
https://cnc4pc.com/contact/
I would have opened the ticket for you, but could not find an order under your name.