tonystrains.com Check out "Tony's Tips" for an article Soundtraxx Low ecoder can always be reset.Speed Tuning entitled "Detlef's TSU Tunig Proceedure."
I actually tried his tips and ended up with a loc0 that would not respond and tried a factory reset to no avail. Luckily someone on this forum recommended using the program track and resetting the loco cab to "00." worked perfectly.
I may have done something wrong wile trying the tips so don't let me scare you. A decoder can always be reset.
You could repalce them with ESU Loksound, which have one CV to set which then runs the loco and automatically optimizes all that BEMF engineering gobblygook about PID.
They also support CV2, 5, and 6.
DecoderPro or not, you do want to get the loco running optimally BEFORE trying to speed match it. I have just one Tsunami (will trade for Loksound, actually), and the companion unit to the sound one has a RCS motor only decoder, which also has a self-adjusting BEMF and they work great together and I didn;t adjust anything.
As to consisted locos fighting each other if they use BEMF, I think it depends ont he implementation of BEMF. The European decoders do it best - Zimo, ESU, CT, but TCS is not too shabby. Digitrax is horrid. I have 3 locos I run at shows in consist (simple consist, they just all have the same address). 2 have TCS motor decoders, the other is a QSI sound loco. Never set anything, they just run together. No bucking or fighting one another, especially ones hooked to a train.
It is possible to go absolutely nuts and have all locos run precisely at the same speed at every speed step, such that you can set them a foot apart, runt hem around a loop for 3 hours, and they'll still be exactly a foot apart - however, you don;t NEED to do this. If they are reasonably close, they will work fine. What is NOT fine is if one starts moving on speed step 1, and the other takes up to step 20 to start creeping. Or if one at full throttle runs 50 SMPH and the other runs 100. But if one creeps at ste 1 and the other at step 2, or if one maxes out at 70 SMPH and the other at 73, it's not a problem to just couple them together and go.
--Randy
Modeling the Reading Railroad in the 1950's
Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.
selectorI would strongly suggest you download the manual for your particular version of Tsunami and study how to fine tune the motor control using CV's 209-212...I can never recall which ones they really are, but you'll find out soon enough once you read the manual.
Quite honestly, if I really depended upon that manual to help me with anything related to CVs 209 to 214 I would go back to DC. When the description in one of the explanations reads "the CV contains a value...that specifies a gain factor for the derivative part of the PID motor control equation", my eyes glaze over. Exactly what'cha talkin about, Willis?
To the OP, what you really need to do (unless you do know what they're talking about) is to make yourself familiar with a free program called JMRI decoderpro. I'd give you the link, but the computer is not cooperating right now. In that program you will find a section on how to set speed tables. Using the tables allows you to set min, mid, max speeds using 28 speed steps as well as all the speed steps in between.
I would strongly suggest you download the manual for your particular version of Tsunami and study how to fine tune the motor control using CV's 209-212...I can never recall which ones they really are, but you'll find out soon enough once you read the manual. Once you have each decoder controlling their host locomotives with their individual differences in gear mesh and slop, plus pickup efficacy, etc, you'll find that they should play together reasonably well. However, the current wisdom is that BEMF control on any one of the two or more locos being consisted is likely to cause trouble with the one drive train fighting the other.
Crandell
The Tsunami CV chart does not have CV's 5 & 6. How do I adjust the mid & high values? I am using MRC wireless to try speed matching for a consist.