Legacy PowerMaster

Yes one for each loop you want independent. If you have all TMCC engines, then you could hook up more than one loop per TPC/LPM.

The advantages of the Legacy PowerMaster over the TPC are

- it handles shorts better

- it is easier to install, it listens to the track 450 kHz instead of a serial port.

I believe TPC 400 can handle 400W - but you have to come up with 400W power then too to take advantage of it. With engines with CAN motors and LEDs, not sure if you really need that much.

I don't know how well Legacy PowerMasters handle sending out horn/bell stream commands for MTH PS1 or PS2 in conventional mode.

Back in the day, I converted two postwar horizontal motor F3's to TMCC using LCRUs, for a total of four motors, and had a hard time of it.

Thanks, then with one Legacy PowerMaster I could control 2 independent loops if I'm running all command engines but if I want command on one and conventional on the other I need two? And is this possible?

Mike

As Michael stated, one Legacy PowerMaster (LPM) per loop where you want to run conventional using the Cab1L/2.  With two independent loops where one loop you want to run conventional and the other loop is always used for command, you really only need one LPM.  The loop where conventional engines will be run needs the LPM to vary voltage to the track, plus you have the option of also running command on that loop if you want by setting the LPM voltage to 14-18 or moving the CMD/CONV switch to CMD for a constant voltage.  If the other loop is always command, you can wire the transformer directly to the track (with added circuit protection if needed) because that track only needs a constant voltage.  The Legacy Base will need to be connected to the outside rail of both loops because the LPM gets its signal through the track (no wires like the TPC).  You will not be able to run TMCC/Legacy engines in conventional mode (if you turn off the Legacy Base, the LPM loses its signal).  However, it is possible to run a conventional engine and a TMCC/Legacy engine at the same time on the track with the LPM after some practice and a few minor accidents.

If you want to option of running conventional on both loops using the Cab1L/2, then you need two LPMs, one for each loop.

Thanks Ron

Mike

Mike,  Operation will be similar to regular PM, they just talk to Legacy via command base direct.  As far as command or conventional ops.  I leave all my power masters in conventional position.  I just address them individually as TR and scroll voltage up to the value I want for Command ops.  Usually full 18V, but can be less if I am testing and engine and don't want a high speed run away.   G

Mike, I am 100% in agreement with GGG, I have a total of three Legacy Powermasters on my layout. Two are on one loop that is divided into blocks which along with a Track Power Controller can control two conventional engines on that loop. I also leave the switch on the Powermasters in conventional and just dial up the voltage I desire.

Ray

I was thinking the Legacy power masters are not due until mid summer.  Are yours from an earlier shipment?

If you to Pats Trains, he shows them in stock.

Ray

Hi Mike

Just from curiosity can you please advise are you talking about the new Legacy Power Master 360 watts   6-82883, (NEW)

or the Legacy Power Master 6-37146? The older one for up to 180 watts.

Thanks

Larry