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Locked Re: Max Speed with a QSI, Version 6 (Seeking enlightenment) #speedprofiling


Nick
 

Mike,

I've looked at most of the responses and, as a BETA Tester for QSI, I noticed you mentioned the decoder was a Version 6, which relates to the ORIGINAL QSI decoders, NOT one that has been upgraded, am I correct ?

In THAT instance, you have a problem. That particular version had the BASIC features of a normal decoder but NOT the advanced features like BEMF and speed tables . This is thanks to Mike's Train House and their frivolous law suit (that he LOST) stating he "invented" the DCC features . QSI and other sound decoder manufacturers had to cripple those features until the suit was settled, which took YEARS . Thanks MTH.

If you really want to have those features, you MUST upgrade to the Version 7 chip, (available from QSI or Litchfield Station . (I am sure there are others but I do not know all of them.)? When I BETA tested the QSI programmer and the upgrade chips, those features were added as part of the upgrade. The upgrade chips run about $30.00 - $35.00 , are easy to install, and can be ordered with the type of loco you purchased or reprogrammed with any file you want using the QSI programmer and software from QSI.

Trying to make the old chips work is like shoveling sand from the bottom of a hole. The original chip is unstable and a short circuit will usually reset them back to default CVs, which means that you will need to attempt to re-program them almost every time a short happens on the layout.?

There are some that say it is possible but after doing this for almost 18 years, I can provide documentation about it if necessary . In any case, my strong suggestion is to purchase an upgrade chip , toss the old one into the circular file, and have a much better decoder for less than most silent decoders.

Contact me off-list if you want the info.

Respectfully,
Nick Kulp

"I'm not a failure. I started at the bottom and I found it easily attainable. Life is too short to set unattainable goals"

- Nick Kulp



On Sunday, December 1, 2019, 09:06:37 PM EST, Michael Boyle <boyle10017@...> wrote:


I am trying to decrease the max speed on a loco with a? QSI, ver. 6. As discussed in the Comprehensive Programmer, I have set the Vstart to Zero and the Max Volts to One. On the Speed Table page "Use QSI Table or User table in CVs 67 through 94" is selected. The Quantum Speed Table is set to "User Defined Speed Table." Forward and Reverse Trim are both set to "128." No mater how low I drop the curve the locos maximum speed does NOT decrease.
What am I doing wrong?
Thanks,
Michael Boyle

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