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Speed changing when I switch on the lights - Digitrax in RS2

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  • Member since
    October 2003
  • From: St. Charles County, MO
  • 7 posts
Speed changing when I switch on the lights - Digitrax in RS2
Posted by wesper on Monday, February 14, 2011 9:45 AM

Dropped a DN163K2 into my Kato RS2 last night and fired it up on the ole Foamboard Central. All seems good except for one seemingly strange behavior. When I switch the light "ON", the speed jumps up about two steps. Still controllable - not the runaway I've read about on other posts - but still slightly jarring. Switch the light "OFF' and the speed returns to the original setting. I have not done any programming yet so all settings should be factory default. Control console is a "vintage" i.e.old MRC Command 2000. Any ideas would be much appreciated.

  • Member since
    July 2006
  • From: Pittsburgh, PA
  • 1,796 posts
Posted by JoeinPA on Monday, February 14, 2011 10:13 AM

Your problem may be mismatched speed steps.  The default setting for the Digitrax decoders 28/128 where, if I remember correctly, the Command runs at 14 speed steps.  You may be able to re-program the decoder to use 14 steps but you can't do that with the Command 2000.

Joe

  • Member since
    October 2003
  • From: St. Charles County, MO
  • 7 posts
Posted by wesper on Monday, February 14, 2011 10:55 AM

Joe:

Thanks so much, that was it. Your recollection is correct - the Command 2000 defaults to 14 speed steps. However, if the engineer pays a little more attention to the job at hand, he can switch to "Advanced" mode which is 28 steps. That resolved the speed problem.

If I wasn't such a stingy old tightwad, I'd upgrade to equipment that was made in this century.

Thanks again.

  • Member since
    July 2006
  • From: Pittsburgh, PA
  • 1,796 posts
Posted by JoeinPA on Monday, February 14, 2011 4:57 PM

Glad to have been of help.  I started out in DCC with the Command 2000 and soon found that I wanted to do more.  I bought a Digitrax Zephyr and have been very well pleased.  Evolution is slow but for us old timers it sometimes results in more fun.

Joe

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