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Problem speed matching locos

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  • Member since
    December 2001
  • From: Trois-Rivieres Quebec Canada
  • 1,063 posts
Posted by jalajoie on Tuesday, December 12, 2017 11:58 AM

Water Level Route

Could the Athearn have the brake release delay set to on, while the Rapido's is set to off?  Sorry, I don't have access to the manuals or my notes right now to tell you which CV(s) to look at, but might be worth a try.  I had to shut that feature off on my Loksounds that I was trying to consist with Lokpilots.  I couldn't get the Lokpilots to mimic that function and was experiencing something basically identical to what you are.

 

Thank you, I didn't think about that. Could it be CV124. Will look into it later on.

 

Jack W.

  • Member since
    February 2015
  • From: Ludington, MI
  • 1,862 posts
Posted by Water Level Route on Tuesday, December 12, 2017 11:17 AM

Could the Athearn have the brake release delay set to on, while the Rapido's is set to off?  Sorry, I don't have access to the manuals or my notes right now to tell you which CV(s) to look at, but might be worth a try.  I had to shut that feature off on my Loksounds that I was trying to consist with Lokpilots.  I couldn't get the Lokpilots to mimic that function and was experiencing something basically identical to what you are.

Mike

  • Member since
    December 2001
  • From: Trois-Rivieres Quebec Canada
  • 1,063 posts
Posted by jalajoie on Tuesday, December 12, 2017 10:58 AM

Thanks Stix for the reply, I did try different value in CV2 - CV3 for both locos. Increasing CV2 for the Athearn loco has no effect on the delay wich seems 3 seconds to me. As of now both locos start at speed step one an run well. The only problem remains that delay in the Athearn. I did also increase CV3 to the Rapido, I am mow at a value of 44 in that CV and still that delay. I will try increasing that value until I get rid of the delay or reach max value.

Jack W.

  • Member since
    February 2002
  • From: Mpls/St.Paul
  • 13,892 posts
Posted by wjstix on Tuesday, December 12, 2017 8:37 AM

If CV 3 and CV 4 are zero, then neither engine is using any momentum. The higher those numbers are, the higher the momentum setting. Usually a little momentum is good, with a new engine I usually set CV 3 & 4 at 15 and work from there...but some folks don't like any momentum.

You can go two ways to get them start together. You can either increase CV 3 (start momentum) for the Rapido engine, which will delay it's starting to move. Maybe start at 5 and go up by 5s (5-10-15 etc)until it matches the Athearn engine. Otherwise, you can increase CV 2 (start step) of the Athearn engine until it starts to move at the same time as the Rapido engine.

Stix
  • Member since
    December 2001
  • From: Trois-Rivieres Quebec Canada
  • 1,063 posts
Problem speed matching locos
Posted by jalajoie on Tuesday, December 12, 2017 7:51 AM

I am speed matching the following locos : Athearn SD70 I and Rapido Dash8-40CM. Both locos have Loksound Select sound decoders installed. The Athearn is a custom install while the Rapido is factory. I did succeed to speed match these locos pretty evenly. The problem is the Athearn loco has a slight delay moving at speed step one, on both locos CV3 and CV4 are both set at 0 (zero). If I increase CV3 on the Rapido loco I can reduce the delay a bit but can't reduce it to nil. Is there anything I can do to the Athearn ?

Jack W.

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