Switch power

To phase transformers attach a wire (16 gauge) from the COMMON post of the ZW to the second transformer's common.  Set the throttle of both transformers to about 18 volts (handle A on the ZW to 18v and the second transformer's handle also to 18v.)  Attach another wire (16gauge) to post A on the ZW.  Plug in both transformers.  Touch the bare end of the second wire to the "positive" of the second transformer.  If the transformers are both in phase you should get little or no spark.  If you get a large spark then unplug the second transformer and rotate the plug 180 degrees and reinsert the plug.  Repeat the test and there should be little if any spark.  Mark both plugs on the same side with a marker to indicate how they need to be inserted into an outlet.  Recommend using a power / surge strip

Good luck

Although I think you should phase them, I'm not sure it's necessary as long as they are not connected anywhere, separate common runs and only powering switch motors.  But as I said I would phase them anyway.

 

Doug

How would you run separate commons if you are using the track to trigger them for non derailing. The wheels will connect the common via the track, no?

That is correct.  I use ground bars and run jumpers between bars so that track and accessory common are the same.
Note the bars at the top of the power board there is a jumper between the two boards.


Another added neutal bar above the Atlas 6924 relay board area.

Tom I missed that you were using the non- derailing feature.  Certainly phase them.

 

doug

Mike, That is heck of a set up you have there. What are the atlas relays used for?

Mike,

 

that is one very clean electrical layout...are you using wire rack for channeling your wiring...????...very impressive...look forward to reading some posts on your electrical prowess....

 

spaceghost...

The 6924 Atlas relay has a time out function and other features.  The time out function eliminated the stuck button problem that had a tendency to burn switch motors.  The linear motors for the switch throw are designed for momentary power and a stuck button will cause a problem.   The relays with a built in time out feature limit that problem.
Burned motor.

I have a lot of close packed switches on my layout, which created a lot of power holes that need some creative corrections.  The relays allow for power routing that patches a lot of the holes. The relays can also be used for interfacing signal systems.  Best to get on the Atlas site for more information or call Atlas about the relays and their many functions.

The wire tray is a Grainger product about 1.5" deep.  There is a cover for this tray. I changed some of the tray to a wider tray later in the project.