I have the DNR error with my Zephyr periodically. Usually it's because there's too little resistance through the decoder for it to be read. When this happens I connect a 1k resistor across the rails of the program track, re-enter page mode with the loco on the program track and it will program normally.
Dr. Frankendiesel aka Scott Running BearSpace Mouse for president!15 year veteran fire fighterCollector of Apple //e'sRunning Bear EnterprisesHistory Channel Club life member.beatus homo qui invenit sapientiam
Are you setting the short or long address. Try setting the short address and make sure the decoder is set to run on short.
Springfield PA
If all else fails, find a good hobby store in your area and see if they can program it. I bought a new Atlas train with DCC and sound and had it home for about an hour and had it all programed and working find and then it started going down hill to were it would not go, not reset, not do anything other than make an engine sound now and then I spent two-three hours and got no where.. I took back to the hobby the shop and they tried it on their track and tried everything and they decided that that chip was bad and exchanged me another train. By trying it on someone elses track you can determine if your DCC system or the train.
Still trying to change decoder address to 80 in page mode ,but each time I press cv-rd key ad2 will just flash and not display current address with is 03 factory address.Loco was never put in MU service,
hahahaha, Program two to run? I can't even get one to run yet......
Decoder is Digitrax and only inserts in one direction. I have another loco and another decoder that I will try to program tomorrow. Thanks for all the help guys.
Joey
Santa Fe All The Way
Here is something I ran into this weekend when trying to speed match my locos. It was late and I was tired and I gave up for the night so I just figured I would reset my locos. So the first one reset with no problem, I assigned my engine number (2760) to it and it worked. The second one I did the same thing and assigned (2769) but it would not work and it would only move on 2760 number.. I was confused.. I tried a half dozen times with the same result.. Then it dawned on me. 2760 and 2769 were an MU.. so I undid the MU and all was great... so my question would be, did you run your engine as an MU and is it still part of the MU?
rrinker If you can, try another loco/decoder. If it still won't work, it probably needs a vacation to Florida. --Randy
If you can, try another loco/decoder. If it still won't work, it probably needs a vacation to Florida.
--Randy
Wheelset2...
I just ran across this thread and the Zephyr should be fine to program this decoder.
I don't do many Digitrax installs and so I'm not sure if this one utilizes a 8-pin NMRA plug in - just try unpluging and reverse the plug 180 degrees. If the engine responds but runs in the opposite direction, then you know the plug in is the wrong way. There's usually a indicator printed on the circuit board to align the 8 pin plug in the correct manner but some do not. If that isn't it, re-set the comand station -again - but input in OPS - Sw 36 - close - exit.
I know that there have been several guys i've had conversations with, that have had a problem programming certaindecoders with a Zephyr - ended up needing a booster to program. I hope that's not the case.
At any rate, if you have a LHS that has a program track and booster, I'd run it over to them and see if they can address it for you...I'm sure its something fairly simple-just got to uncover it.
Good luck,
HeritageFleet1
Still remaisn that this should all work on the program track. No Digitrax decoder needs a bosoter to work with a Digitrax system. Assumign the decoder is installed correctly, the program track is wired properly (try a piece of flex track or, if your loco will fit, a piece of sectional track, wired to the program track terminals with no more than a foot or two of wire - like #18 speaker wire and not phone wire), and the wheels and track are clean, there shoudl be no issues using regular paged mode programming. If you can, try another loco/decoder. If it still won't work, it probably needs a vacation to Florida.
Modeling the Reading Railroad in the 1950's
Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.
WheelSet2Hey Randy ,just tried OPS mode again for deceleration rate and it worked ,tried to change loco address to 80 ad2 but it goes back to 03 when I hit the exit button
Hey Randy ,just tried OPS mode again for deceleration rate and it worked ,tried to change loco address to 80 ad2 but it goes back to 03 when I hit the exit button
In OPS mode try writing CV1=80 and CV29=6 and see if this produce any results.
Jack W.
You got something to change so you're on the right track. It'll take a Digitrax person to help you from here but sounds like you're close. Also try the digitraxx web site for tech support.
I just tried the operations mode programming, tried to change the deceleration rate but nothing changed. I did not get a busy or DNR error. Programming track is seperate from layout.
Ops Mode cannot read, it's write-only.
Was your program track part of your layout, such that a train with metal wheels or a loco oculd have crossed gaps and conencted the track power to the program track terminals? This is about the only thing that might blow out the program track outputs - that or connecting power of some sort, such as a DC power pack.
Hey Guys thanks everyone for the help, I double checked everything but still get dnr or busy. Tried Ops programming but still get dnr or busy .Reset the command station back to factory settings OpSw 39 to closed ,but it will not stay in command station mode. Called Digitrax they told me to send it to them that it sounded like a short in the Zephyr. I have had it around 4 years with maybe 8 hours run time on it, buying a house and building the layout I really have not used it very much .I wonder if that could have caused the problem? Again thanks for all the help everyone
Will do, thanks!
No swayin, I don't think this is a Zephyr problem, to me you both have a problem between the rails and the decoder. Take a look at page 22 of the Z manual for a problem solving approach or do what rinker advised in his post above.
Sounds a lot like problems i'm having with my Zephyr:
http://cs.trains.com/trccs/forums/t/175624.aspx
I'm not sure about the Digitrax ones, but I know with some decoders you have to change CV29 from the factory default to a different no. to allow it to use long (4 digit) addresses.
"DNR" means "Did Not Read" which usually means your system isn't reading the decoder at all...usually indicating something was installed improperly or there's a short etc. Can you change any other CV's?? Try changing say CV 3 and 4 (momentum). If they accept the change, then it might be the address problem I mentioned in the first paragraph. If you still get "DNR" it may mean the decoder isn't connected right.
I second what SWChief said
Is the decoder installed properly? Is the program track hooked up properly? Are the loco wheels clean? Is the program track clean? All of these can cause the DNR response - the Zephyr is not seeing the decoder acknowledge the program commands. Also make sure the program track is wired correctly - the teminals for the program track are not next to one another ont he back of the Zephyr, there is PGM A, then a ground, then PGM B - there shoudl be an empty space between the two wires goign to the program track.
FInally, what address are you trying to set it to? If 127 or less, is the display sayign AD2 before you key it in? Or if the number is 128 or greater, is it saying AD4? You can't program a long address in when the system is expecting a short address, it will just revert to whatever it had before. There is a difference int he value for CV29 to distinguish a long and short address, the Zephyr sets this automatically based on the AD2/AD4 display.
Hamltnblue Does the Zephyr have the option ot program in ops mode? If so try that. Most decoders work fine programming on the main.
Does the Zephyr have the option ot program in ops mode? If so try that. Most decoders work fine programming on the main.
Absolutely. I just did some programing today. And was going to suggest trying OPS programing to change the address.
On the Zephyr, just toggle though the various programing modes until it shows OPS.
Now this I'm not sure if this is something to worry about, but I take all of my other DCC equipped locos off of the main when I do OPS programing. I don't want to mess with locos that I do not want to program.
Matt from Anaheim, CA and Bayfield, COClick Here for my model train photo website
I have a similar problem with an Atlas N-scale GP38-2 wit factory installed decoder. I tried to program it with my Zephyr DCS50 but it returns 'no decoder' when I try to read its variables on the programming track. I bought the locomotive about 1 month ago. It works fine when I address it with 03. I used the same Zephyr command station to prgram other locomotives and didn't have any problems with it.
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Nick
I have the zephyr starter set, the manual states to put the loco on the prog. track in the page mode.
Some decoders cannot be programed on a programming track. You may need a booster for the programming track, especally if they are sound decoders. My club has the Super Cheif and an Empire Builder. We have to program locos on the Empire Builder as the Super Cheif just won't do it.
Yes, I have ran it on address 03, tried to re-program different address. When I try to write new address, it goes back to 03.
For starters, have you run the loco on address 3 to make sure that's the address?
hello everyone and Happy Fathers day,
I have a Digitrax DH163PS. I have put address 03 in, put the Loco on the programming track, tried to re-program address and is coming up with DNR and Busy. The Loco is an Athearn CF7. Have re-set decoder to CV08, have re-set Zephyr to factory default. Any help will be greatly appreciated.