RailPro > RailPro Specific Help & Discussion

PWR-56 limitations and possible adjustments?

(1/3) > >>

TJMac:
Using RailPro to run 2 rail O scale I'm a little concerned 4amps isn't enough as I have several Atlas engines that draw just over 1.2amps each. A consist of three engines would be pushing it. I decided to try a Mean Well LRS-100-15 turned up to 16v for a total output of 112 watts (double the PWR-56). When I run this through the PWR-56 I'm still only seeing 14v at the rails. Hooking the Mean Well direct to the rails and I see the full 16v (plus/minus).

That said, does anyone know if it's possible to adjust the voltage regulator in the PWR-56? Is it even worth messing around with it?

CPRail:
I have a similar set-up for my HO layout (different unit than your Mean Well), but I'm pretty sure I have mine BETWEEN the PWR-56 and the layout. I'll try and get a photo tonight.

CPRail:
As promised, here is my set-up. The Red and White wires go to the track (I really need to remember to attach those to the upright in the photo...)

fishindogwood:
With those different separate power supplies, do you even need to use a PWR-56 at all in the circuit?  It’s not like there is any encoded signal being put onto the rails like DCC.   

William Brillinger:

--- Quote from: fishindogwood on November 10, 2025, 01:41:49 PM ---With those different separate power supplies, do you even need to use a PWR-56 at all in the circuit?  It’s not like there is any encoded signal being put onto the rails like DCC.

--- End quote ---

No, you do not need a PWR-56 at all. Put 14 to 16 volts on the rails and you are good to go.
The benefits of the PWR-56 are it's repeater function, and its ability to give feedback through the HC about the status of the power system.

Navigation

[0] Message Index

[#] Next page