CV124

Do you know the model of decoder that is in there?

I don't know the answer but just wanted to commiserate with attempts to modify a CV to get what you want out of a decoder.

I couldn't remember or never knew what CV124 was all about and could only find it in the manuals as a means of enabling or disabling start up delay (manuals for LokSound 5 models). It makes no reference to modifying the time allocated to the delay.

When I get to situations like that I keep changing the CV by increments up or down with programming on the main until the locomotive runs how I want it, but CV124 is listed with 5 bits and multiple descriptions such that it looks dangerous to do so. Change a number and more than one thing may be affected.

Also the default value is listed as 20 in the instruction manual but 24 in the quick start guide so it would be difficult to know where to begin.

I'm hoping for a guru to clear this up as well.

I have a Lokprogrammer...

And I have an ESU equipped locomotive on the test track at the moment. If nobody answers this before then, I'll see what I can find when I get home. 

Haven't looked at the LokProgrammer yet

I decided to grab the current LokSound 5 manual: http://www.esu.eu/en/downloads/instruction-manuals/digital-decoders/

This is all it says about the delay, which you've already discovered:

13.2. Prime mover startup delay Usually, when the sound is idling and you turn up the throttle, the locomotives begins to move only after the Diesel engine has reached notch 1. A steam loco will even release its brakes first and fill the cylinders. Although this behavior is very prototypically, one might not like it because it causes some delay. You can disable this startup delay by simply deleting bit 3 of CV 124. This will cause the LokSound decoder to immediately start moving when the throttle is turned up. However, the start up sound will not be synchon with the motion anymore.

Basically you have two choices: wait until the sound hits notch 1, or no wait at all. 

It is very easy to do if you

It is very easy to do if you have Lok Programmer. It is the decoder drive settings. Once you check that you want the virtual sound delay, it will ask the amount of time. I set mine at 62 or 4.06 seconds. That seems to set the Lok Pilot decoders to the delay set on Lok Sound. Also if you have a Lok Pilot or Lok Sound, you have to go into the function mapping. F8 and the far right column, set to virtual sound delay iirc. I've done a bunch of Lok Pilots this way, and all run together nicely. You also have to set F8 on your throttle to work and engage

Why isn't this in the manual?

Or if it is... where is it at? 

Go to Drive Characteristics.

Go to Drive Characteristics. Bottom of page, check Starting delay, there are two boxes. The second one has the time amount cv252

Then go to Function Mapping> F8>  Column on the right>  check Virtual drive sound

Hope that helps...That will also do the Lok Pilot decoders

When you go to run, F8 turns the delay start on or off

What CV values if no programmer

OP notes that he has no access to LokProgrammer. Since we know he has movement delay but only needs to change delay time, are we saying a change to CV252 will achieve this? 

If so, what CV number should be changed, and to what value so as to cover for virtual drive sound on F8?

Can you tell from the programmer which CVs and their values would make this possible if one had to program individual CVs using a DCC throttle?

That, I can't help with. ESU

That, I can't help with. ESU decoders have so much stuff on them, the Lok Programmer is an essential tool. I am in the process of changing all of my decoders to ESU, so it is a worth the investment.

If you have decoder pro, you could try CV 252 and adjust the time 38 = 2.49 seconds 30 = 1.98 seconds etc

Worth a shot

 I don't have decoder pro but any idea what CV252 is at baseline? Wondering how to get it back to how it was if the adjustments fail.

CV124 and CV252 settings

I'll take a look at the value that is in CV252 and see if changing that makes any difference. I can always put it back to its default value; or in worst case, reset the decoder.

I know that on all my LokSound equipped models the default value for CV124 is 20, or in one Atlas GP7 the default is 28. By changing CV124 to a value of 16, it eliminates the movement delay and the model will move as soon as you advance the throttle. I've seen different values suggested for CV124, but changing it from 20 (or 28) to 16 seems to be just fine.

As I noted in my original post, I don't mind the movement delay, but it's just a bit too long for my likely. For instance, if I need to put slack on the train to uncouple, I'd rather that the locomotive be able to give a slight push without having to wait so long for it to move.

I'm still looking around for someone in my area that might have a LokProgrammer that I can access. I sure would like to get my hands on one, but I can't find any dealer that has one in stock. With all the LokSound models I currently have, it would be certainly be worth the investment for putting in customer speed curves, etc.

Thanks!.

. . .

JMRI 4.23.6  does not list a CV252 for LokSound V5 or  V4  . Only place I can find this is LokPilot   and it relates to Virtual sound option in LokPilot decoders.  

How would this relate to LokSound V4 or V5  ?

Marc

CV252

Marc;

I looked at about 4 of my LokSound models and CV252 reads = 0 on all of them. Perhaps indicating that it isn't a CV in the decoder? My NCE throttle doesn't say it can't find that CV but just shows it as being 0. Made no attempt to enter any sort of value in it.

For now, I'll just continue to disable the movement delay on all of them, until I can get hold of a LokProgrammer and see what I can do.

Yes

LOK USA's Matt Herman with the solution, Circa 2015
NO ESU Programmer Hardware or Purchase Required!

Tools -> Show Changed CVs

Watch, Heed, Enjoy...

Happy Modelling,
Aim to Improve,
Prof Klyzlr