Tom,
Would you power the TIU separately, or let the Fixed 1 input power it? I'm only using Fixed 1 at this point.
I would use a separate power source, including aproperly connected 14 volt Z4000 output, for powering the TIU.
Looks like you can't count on even separate leads from the same transformer being in phase!!
Yes, you can. I've never heard of a Z4000 whose outputs were "out of phase with each other."
Evidently the 18v and 14v outputs in the Z1000 are out of phase!
First of all, there is no "18 volt" output from a Z4000. There are a pair of 5-22 volt variable outputs, a 14 volt fixed output and a 10 volt fixed output, all of which are in phase with each other.
What you did was create an out of phase condition by connecting the Z4000's Hot (red) 14 volt terminal to the TIU's Aux. Power port's Common connection and the Z4000's Common (black) 14 volt terminal to the TIU's Aux. Power port's Hot connection. If you reverse what you connected form the 14 volt output to the Aux. Power port, all will be fine.
This and a whole lot more is all in MTH’s “The DCS O Gauge Companion 2nd Edition", available for purchase as an eBook or a printed book at MTH's web store!
