I am having issues with a Novusun v2 and TB6600 drivers on a 4 axis machine. I have wired everything according to the minimal instructions I have found and after fixing some software issues, everything is communicating and the steppers are appearing to work just fine. The problem I am having, is that of the two LEDs ( PWR and ALRM) only the ALRM light is showing and has only ever shown. The drivers are also getting quite warm, so I'm not sure whether to just ignore the lights but I'm worried about burning something out etc. I'm a newbie so any help with this would be greatly appreciated!