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Question MCU with heterogenious locos - How to align the speed with heterogenious decoders
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Offline anderspihl  
#1 Posted : 16 November 2015 09:48:41(UTC)
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anderspihl

Denmark   
Joined: 12/10/2009(UTC)
Posts: 66
Location: ,
Dear railroaders,

Recently I tried to create a MCU with heterogeneous Märklin locos. The locos in question are the BR 01 138 (article 39008 /MFX+ decoder) and BR 103 (can’t remember article/MFX).

With heterogeneous decoders, the locos do not run at the same speed when operating the MCU. W/O MCU and with manually aligned speed, I notice the vertical green speed bar (next to the engine icon) displays different (~30%) speed values . Hence, achieving the same speed requires different loads on the heterogeneous decoders.

Is there any way to compensate for the different decoder behavior to get a heterogeneous MCU to work on the CS2?
Best regards
Anders Pihl Knudsen
--
CS2 60213+MS1, 60052 60VA Trafo, K-tracks, Viessmann 5211 (K83)
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Offline tulit  
#2 Posted : 16 November 2015 13:06:59(UTC)
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tulit

Canada   
Joined: 20/05/2012(UTC)
Posts: 400
Originally Posted by: anderspihl Go to Quoted Post
Dear railroaders,

Recently I tried to create a MCU with heterogeneous Märklin locos. The locos in question are the BR 01 138 (article 39008 /MFX+ decoder) and BR 103 (can’t remember article/MFX).

With heterogeneous decoders, the locos do not run at the same speed when operating the MCU. W/O MCU and with manually aligned speed, I notice the vertical green speed bar (next to the engine icon) displays different (~30%) speed values . Hence, achieving the same speed requires different loads on the heterogeneous decoders.

Is there any way to compensate for the different decoder behavior to get a heterogeneous MCU to work on the CS2?


With the cs2 and appropriate decoders, you can define the speed curve for each locomotive. You'll need a speedometer of some sort (like m#78111) to measure the speeds of each individual locomotive to then compensate for it on the curve. If precise speed matches aren't important, I have done it by trial and error running the two locomotives on parallel track and adjusted until they were running pretty close.
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Offline anderspihl  
#3 Posted : 19 November 2015 15:58:21(UTC)
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anderspihl

Denmark   
Joined: 12/10/2009(UTC)
Posts: 66
Location: ,
Originally Posted by: tulit Go to Quoted Post
With the cs2 and appropriate decoders, you can define the speed curve for each locomotive. You'll need a speedometer of some sort (like m#78111) to measure the speeds of each individual locomotive to then compensate for it on the curve. If precise speed matches aren't important, I have done it by trial and error running the two locomotives on parallel track and adjusted until they were running pretty close.


Thanks for the tip. Sounds a bit tricky, but I will give it a try.



Best regards
Anders Pihl Knudsen
--
CS2 60213+MS1, 60052 60VA Trafo, K-tracks, Viessmann 5211 (K83)
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