I have a similar size layout, also a wire rats nest, no problem with (3) sc-2's. here's my wiring environment:
-powering them with their wall warts connected to a power strip with heavy duty extension coiled on the floor approx 4' from the SC-2's.
- to power the switches, a Powerhouse connected to a ZW-C (in your environment would be the Powerhouse connected to the Powermaster) is connected to the same power strip with heavy duty extension cord coiled on the floor.
- my track is powered by (4) PowerHouses, (4) PowerMasters and (1) Command Base. The Command Base along with each of the PowerMaster Common (U) terminals are connected to the common (U) of the ZW-C (in your case Powermaster) is connected to the common (U) of each of the Powermasters. These ( Powerhouses , PowerMasters and Command base are connected to another power strip with heavy duty cord plugged into the same duplex wall outlet along with the power strip supplying the SC-2 and switch power.
Cathryn, your environment is similar to mine so it should work. after checking all the physical connections of the SC2-2's to the switch motors, that you have a common (u) for everything tied together, Cab1/2 antenna extended, a different wall outlet? sorry for the scatterbrain approach. I have been there many times myself, but ultimately find the solution, slapping my forehead in disbelief.
All the best!
-
