Alco S2 - start speed difference based on 1 or 2 digit address

Started by West Bound, January 23, 2018, 11:56:38 PM

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West Bound

Using digitrax system with a Sprog interface for a JMRI programer.
If I assign a single digit address of 1 through 9 loco will start to move at speed step 1. Any 2 digit address will delay start movement until speed step 12. The speed at step 12 is not as fast as step 12 with a single address but equal to step 4 using single digit address. I've done a comparison of all the CVs of both addresses and nothing other than the address has changed.
The easy fix would be to assign a single digit address. I have 20 other locos all with 2 digit addresses so it will be confusing to have one engine with a single digit address.
Has anyone else experienced this, and if so, how did you resolve it?
Thanks, John West


bapguy

 What decoder brand? Same one in each? Sounds like 1 might be running on 28 speed steps the other on 128. Look in the front of your system manual for decoder status. Not all decoders support 128 speed steps.       Joe

West Bound

There is only 1 loco doing this. The S2, Bachmann sound value 128 steps. I have 2 other sound value steam locos no issues along with 18 or so other brands.