I am looking for some help with wiring the relay outputs O0-O4 on this unit. Does the unit power these, and if not how should I wire my fan that I am trying to turn on and off. The installation guide shows the first slot as being a common +V and the outputs being the -0, so do I put all common V+ lines in that port and one from my power supply and the the individual -0 lines to each realy port. I am really confused, I normally only deal with mechincal/fluid PLC controls is new to me.