mikefamig said:
OK i just pulled the twa like a bad tooth and will see how the system runs overnight. I did this based on the fact that even my old controller that I replaced ran well with the twa removed. To be accurate, the system ran well with the twa connected and the rftw disconnected and it ran well with the rftw connected and the twa disconnected but not with the two together.
Leaving the TWA disconnected is a reasonable course of action at this point. If the system behaves correctly without it, it would certainly point to the TWA being a part of the problem. The question is, how long to wait before you decide everything is stable?
I say that the TWA could be just part of the problem, because interaction between the power supplies could be the real cause, and they are being connected together through the TWA.
You do need a NEG/common connection between the TWA's power supply (the P1216 or the Altronix) and the M1. You are probably getting this now through the jumper cable that connects to J16 on the M1. But those connectors don't always give you a good, solid connection, so you should add a separate wire that is secured to screw-type terminals on both sides.
Earlier, I recommended cutting the red wire in the jumper cable as a next step. Before you resort to that, there is a simple test you can make. Disconnect the cable from J16 on the M1, and use a multimeter to measure whether there is any voltage between the red and black wires in the cable, while the TWA is powered up. If you measure any voltage, that would tell you that the power supplies will indeed be connected together via the jumper cable. And that would be a bad thing, in my opinion.
If you measure 0V, then the TWA is providing some isolation between the supplies and it shouldn't be necessary to cut the red wire. I could be wrong, but I suspect there is no isolation.
I can tell you from experience that power supplies do really strange things when they are connected together, especially if there is any difference in their output voltages and both are trying to regulate their outputs. They end up fighting each other.