Stepper Motor Direction

[Isabella17]

Ok this is a general question and not related to UCCNC but I hope someone can help.
I have a machine that uses UCCNC and it runs fine with no issues.
I am now trying to set up an old Triac PC with a UC400 ETH, UCCNC with a 2017 screen set and a computer running Windows 7 Pro.
I have the motors connected and all 3 axes have the same problem. If I press the axis button to control the negative direction the axis moves, sometimes negative and sometimes positive, seemingly completely random, if I press the axis plus button the dro changes but the stepper motor does not move (

https://www.oyostepper.com/

I am thinking I have somehow got the wiring of the A+, A-, B+ and B- to the drive wrong but have no idea how to change it. The motors are old and I can't tell what color is what. I still have the original control box although it is not being used. Where the motors are connected like A1, A2, B1, B2 so I think of A1 and A2 as step addition and subtraction and B1 and B2 as direction addition and subtraction.

Any help or pointers in the right direction would be helpful.

Edited November 4, 2024 by Isabella17