The new 2-8-0 with tsunami installed does everything right EXCEPT, it just about runs off the layout at half throttle. I can't find the CV that changes the max speed nor the range that it has. I don't want to mess any of the installers configurations but I do need to slow down the top speed.
Any help is appreciated.
73
Bruce in the Peg
Someone posted here before that, although not documented, they DO have CV5 Vmax and CV6 Vmid as well as CV2 Vstart.
--Randy
Modeling the Reading Railroad in the 1950's
Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.
I do know the Bachmann DCC/sound locos have the Tsunami made specifically for Bachmann. SoundTraxx has Tsunami CV instructions but they are probably different than the Bachmann decoders. I have theTsunami documents but never compared them to the Bachmann documents. I also found this in the Bachmann site.
http://www.bachmanntrains.com/home-usa/dwg/Sound_Decodesr_CV_DFLT.pdf
The Quick Start Guide does not say much. It seems to reference the first link I posted.
http://www.soundtraxx.com/documents/manuals/Bachmann%20Quick%20Start%20Guide.pdf
If no sure answer here, go join the Bachmann forum where there is a Bachmann rep called, The Bach Man. The are some people using the 2-8-0 with factory DCC/sound.
Rich
If you ever fall over in public, pick yourself up and say “sorry it’s been a while since I inhabited a body.” And just walk away.
Great, so you have to make a speed table when all you want to do is cut down the top speed a bit? No thanks, pass. (where's the curmudgeon smiley?)
If you have DecoderPro, it is a simple matter of setting your top speed in CV 95 and then tell the program to match ends with whatever you use for your CV 2 start value, with CV 67 being the starting point. Lacking DecoderPro, figure out a straight line speed curve by dividing the distance from 0 to let's say 180 (1/2 the total speed) and apportion them amongst the 24 speed steps. Cumbersome. I highly recommend DecoderPro; it's free and all you need is an interface: PR-3, etc.
Sure, DecoderPro helps out a lot. But it's still easier to just set your throttle on max and adjust CV5 in ops mode while the loco is actually running around the layout [:D
rrinker Sure, DecoderPro helps out a lot. But it's still easier to just set your throttle on max and adjust CV5 in ops mode while the loco is actually running around the layout [:D --Randy
But you can't do that with a Tsunami because, for some bizarre reason, SoundTraxx did not implement CV 5 in them. If you look at the SoundTraxx Tsunami Technical Reference Manual CV 5 and CV 6 are not implemented. If you try to program CV 5 your DCC system might indcate that it has successfully done so, but the decoder does not support it so nothing changes.
Every version of documentation on the SoundTraxx web site pertaining to either the steam or diesel Tsunami decoders that list the supported CVs skip over CV 5 and CV 6.
Blind Bruce is not the only person who has asked about this problem. Cisco Kid as asking the exact same questions in another thread right now, and it has come up several times in the past.
http://cs.trains.com/trccs/forums/t/141019.aspx
It doesn't make sense to me that CV 5 would actually be supported but not listed by SoundTraxx in any of their documentation. Why are they keeping it a deep, dark secret from us?
Blind Bruce I do need to slow down the top speed.
I do need to slow down the top speed.
Blindbruce a further complication might be up ahead.
Here's another thing I found to be a problem, but I found out the answer.....for my setup at least.
You will see that I had started a thread just earlier because I couldn't get the top speed down on one Tsunami 0-8-0. I know where and how to do it with the speed table and was doing everything correctly (with Decoder Pro as well) but the rewrites to the table were not "taking" on the decoder.
What I found, was that programming speed tabel for the Tsunami on the power track seemed like it was being read, but it was really not overwriting the original setting or the preset Soundtraxx table I had just tried. The loco was ticking and jerking down the track normally during the rewrite, just as if things were happening, but I could tell it was still running on the preset log table I have written previously.
The only way I could get it back under control was to put the Tsunami on the programming track (which has a Soundtraxx booster) and reset to defaults and then write the speed table that I wanted. Then the speed table worked on the main. But this is a nuisance since to tweak it, I need to put it back on the programming track.
The Tsunami's are just fussy, even on the main.
I did not try setting my Zephyr to blast mode on the main however. That might have worked too, but I had other locos out on the layout.
An experiment I conducted on Friday evening (November 7th) seems to indicate that the TSU-1000 diesel Tsunami does support CV 5.
I took a new Tsunami that has not yet been installed into a locomotive and connected the red and black wires to my track using alligator clip jumper wires. Using my NCE ProCab Wireless throttle and Operations Mode (Main Line) Programming, I was able to change CV 5 from a value of 0 to 128; back to 0; and then to 12. To eliminate the possibility of a false readback of the value in CV 5, I turned the layout and throttle off after each change, and when I turned them back on the Tsunami still had the new values in it.
I have sent an e-mail query to Bruce Petrarca at Litchfield Station asking what his experience has been with the Tsunamis and CV 5, and will forward his answer when I receive it.
The plot thickens.
EDIT: I don't know why my system gave me the results that I received when attempting to program CV 5 into a diesel Tsunami as stated above, because here's the answer I got from Bruce at Litchfield Station Monday morning:
"Tsunami decoders do NOT support CV 5 or 6. To lower top speed, the best method I've found is to enable speed tables and set the speed table to the embedded straight line table then reduce the forward and reverse trims from their default 128 to about 60 to 80."