Problem with 4th axis UCCNC setup

Hello

I have an issue controlling my Stepcraft 4th axis in UCCNC. The A-axis keeps spinning even though it should only rotate 360 degrees making the A axis in UCCNC count below -1400.

When I adjust the Steps pr. unit to 30 it seems to solve the problem (then a full rotation axis a = 360 units i UCCNC). That said I am a bit unsure if that is the right way to solve the problem?

Do you know if the the problem is in UCCNC or it a hardware problem? I have attached a picture of the print card.

I look forward to hear from you.

Br. Kristoffer