I just built this power supply and it will run my motors but the fault light comes on after 30 seconds. That is if I'm running them or just leaving them set there with the power on. I'm using USB cables for the encoders. They have a shield but all the wires are inside the one shield. Could someone Please Help.

UPDATE
Now it is working I can adjust the motors and they seem to hold and work fine. BUT when I turn the power supply off then back on the fault lights are on. I can turn it off and on alot of times before it will come back on with out the fault. And when it does come back on it works fine.

UPDATE
I found my problem. I was connecting the err to common I should have had it connected to enc+.
Thanks Ed