If you haven't heard of this, Ken Patterson, host of What's Neat this week/month/podcast, etc., recently had a fire on his layout which, FORTUNATELY, resulted in only minor damage to his home. The fire, from what I have gathered, has been attributed to his Digitrax DCC system. A train derailed at a switch and shorted the track. The system circuit breaker is designed to continuously cycle power to see if the short has been cleared. Due to the short and constant power cycling, the track heated up to the point of causing a fire.
All this happened when he was away from the layout making coffee.

My question for this forum is: Could this same thing happen with our RailPro systems? I just don't know how the fault detection circuitry works within RailPro systems.

Personally, I try to never leave my trains running unattended, but I have been known to leave the layout powered on by accident. This whole incident has lead to addition of a couple extra smoke detectors in my train room & basement just in case.

Would it be the same a normal loco if you just remove the traction tires for the test ?

IMO, should be fine and long as the devices are rated for 15v. I believe the Meanwells have adjustment output dial you turn with a screw driver. See if you can match the voltage output of the PWR56 ? Maybe 14.7 ?

Check the meanwell with a volt meter 15v output might actually be 15.5 etc ... just like HO DC transformers, some can put out 16 volts wide open.

this is what I use for powering my railpro system.  it is probably more power than you need for the AM and AR modules, but this is a solid unit.

Mean Well LRS-100-15 Switching Power Supply, Single Output, 15V, 7A

on amazon for about $25.

Ken

You can power the TC-1 with any power supply that provides a maximum voltage of 16 Volts DC.

Since you are not powering track with it, it does not need to be identical to your track power source.
You should be aiming for 14 volts DC.