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Re: QSI Titan-U reaction to a short.

kjlovesya
 

Ed, the Q3 sound set 1123-244v9-3-2 is for an ALCo diesel prime mover.  Although there always seems to be anomalies, for greater accuracy, you might want to use an EMD 16 cylinder 567 (cubic inch displacement) prime mover sound set.


Best regards,
KJ
Re: QSI Titan-U reaction to a short.

kjlovesya
 

Hi Ed,

  I copy and pasted my reply to Chris' post.  Since it might address your issue I posted it here too.

   I don't consider myself an expert, merely an enthusiast.   There is a section in the full manual concerning the decoder operating temperatures.  Should the set temperature be exceeded, an internal circuit cuts the power to sensitive parts of the decoder.  The temperature threshold is adjustable, but I would not go there.

  I'm guessing that a short circuit instantly heats certain parts past the threshold.  A heavy load, with the motor running at the full decoder current capacity for prolonged periods, will likely trigger this safety feature as well.

  Kelly has mentioned the 'H' bridge motor driver circuit is quite efficient and runs at low temperatures.  However, the large scale version offers optional cooling fan outputs.  Perhaps a well ventilated decoder would allow your S scale 2-6-6-6's to run a little longer before overheating?  (I'm guessing)

KJ
Re: Titans shutting down

kjlovesya
 

Hi Chris,

   I don't consider myself an expert, merely an enthusiast.   There is a section in the full manual concerning the decoder operating temperatures.  Should the set temperature be exceeded, an internal circuit cuts the power to sensitive parts of the decoder.  The temperature threshold is adjustable, but I would not go there.

  I'm guessing that a short circuit instantly heats certain parts past the threshold.  A heavy load, with the motor running at the full decoder current capacity for prolonged periods, will likely trigger this safety feature as well.

  Kelly has mentioned the 'H' bridge motor driver circuit is quite efficient and runs at low temperatures.  However, the large scale version offers optional cooling fan outputs.  Perhaps a well ventilated decoder would allow your S scale 2-6-6-6's to run a little longer before overheating?  (I'm guessing)

KJ
Re: QSI Titan-U reaction to a short.

Paul B/Indy
 

At the risk of making too many assumptions, here is a thought.  It does not address your specific question, but it could solve the problem.


I use these on my layout specifically at locations that could be problematic for running a TO and shorting out.  This is a TO auto-reverser so that you cannot run into a closed route any longer.  This will open it for you.  

This assumes that you use a Tortoise or some other powered method of TO routing.  If not, then forget about it.

Just an idea.  It would solve your issue.

Paul B/Indy


On Aug 7, 2022, at 1:37 PM, Ed Rappe <edrappe@...> wrote:

I'm running an O scale brass GP7 with a Pittman 8000 series motor.  For many years it ran beautifully driven by a QSI Solutions Titan-U sound decoder with Q3 sound set 1123-244v9-3-2.
All was well until during an operating session one of the crew inadvertently ran the unit into a powered frog thrown the wrong way - creating a short.  The DCC Specialties PSX Power Shield digital circuit breaker instantly killed the power and began its automated reset tries until the short was removed by throwing the turnout.  At that point the locomotive would no longer responds to any commands.  I took the locomotive off the layout and the next day put it back on the rails and it ran normally.  Several weeks later a similar short happened with the same result.    Other brand decoders on the layout do not respond in that fashion.  It seems that the QSI decoder is doing its own timed reset. 

Is the decoder defective - or is there a CV setting or firmware update that can be applied to correct the situation?  I have a QSI Programmer.  

Ed Rappe 

 
Re: QSI Titan-U reaction to a short.

Jim B
 

Ed,
I have a number of the SS/GGD locos with QSI decoders.    I think I have seen this a few times.    It does seem to be a timed reset but it does not take over night.    I have simply lifted my loco to one side after power was restored for about 30 seconds, and it was ready to run.
Jim B
Re: Titans shutting down

EdSauers
 

Chris, thought i was replying to robert

Ed

On 8/7/2022 7:19 PM, bigfourroad wrote:
Ed I was replying to Ed Rappe about his Titan quitting and that may have been confused with Robert V’s question about getting a new programmer. Kelly could contribute to either answer big time.
Chris R
On Aug 7, 2022, at 7:08 PM, EdSauers <Dockside98@...> wrote:

Chris,

WE only have one individual at QSI supporting us and that is Kelly Dorf, keep emailing him, he is super busy at times but usually does get around to replying.

He can probably repair your programmer, if you can't wait I might have a use one i would sell you.

Ed Sauers


On 8/7/2022 5:36 PM, Robert V via groups.io wrote:
This has nothing to do with your problem but could anyone tell me how I can get a new programer mine has stopped working. I left a message on the QSI website to no avail.


Sent from Yahoo for iPhone


On Sunday, August 7, 2022, 4:31 PM, bigfourroad <vannessco@...> wrote:


Glad you posted this Ed. I have a trio of S 2-6-6-6s with Pittman 8000s and Titans that would have the same heft as yours (irrelevant to this problem I believe). They do the same thing very occasionally and require a complete restart. They also shut down if pushed too hard for their 2 rating. Basically, they sample required amps output and decide what they can provide or not. Hoping kj or one of the other experts can make this explanation look more professional.

Chris R
Re: Titans shutting down

Robert V
 

I  hope I didn’t disrupt this thread Mr. Sauers I would like to take advantage of your offer if you have a programmer available. You can email me at robertvandeusen1960@... Thanks again for all your patients.

On Sunday, August 7, 2022, 7:19 PM, bigfourroad <vannessco@...> wrote:

Ed I was replying to Ed Rappe about his Titan quitting and that may have been confused with Robert V’s question about getting a new programmer.  Kelly could contribute to either answer big time.
Chris R
> On Aug 7, 2022, at 7:08 PM, EdSauers <Dockside98@...> wrote:
>
> Chris,
>
> WE only have one individual at QSI supporting us and that is Kelly Dorf, keep emailing him, he is super busy at times but usually does get around to replying.
>
> He can probably repair your programmer, if you can't wait I might have a use one i would sell you.
>
> Ed Sauers
>
>
>> On 8/7/2022 5:36 PM, Robert V via groups.io wrote:
>> This has nothing to do with your problem but could anyone tell me how I can get a new programer  mine has stopped working. I left a message on the QSI website to no avail.
>>
>>
>> Sent from Yahoo for iPhone
>>
>>
>> On Sunday, August 7, 2022, 4:31 PM, bigfourroad <vannessco@...> wrote:
>>
>>
>> Glad you posted this Ed. I have a trio of S 2-6-6-6s with Pittman 8000s and Titans that would have the same heft as yours (irrelevant to this problem I believe). They do the same thing very occasionally and require a complete restart. They also shut down if pushed too hard for their 2 rating. Basically, they sample required amps output and decide what they can provide or not. Hoping kj or one of the other experts can make this explanation look more professional.
>>
>> Chris R
>> 
>>
>>
>>
>>
>>
>>
>
>
>
>
>






Re: Titans shutting down

bigfourroad
 

Ed I was replying to Ed Rappe about his Titan quitting and that may have been confused with Robert V’s question about getting a new programmer. Kelly could contribute to either answer big time.
Chris R

On Aug 7, 2022, at 7:08 PM, EdSauers <Dockside98@...> wrote:

Chris,

WE only have one individual at QSI supporting us and that is Kelly Dorf, keep emailing him, he is super busy at times but usually does get around to replying.

He can probably repair your programmer, if you can't wait I might have a use one i would sell you.

Ed Sauers


On 8/7/2022 5:36 PM, Robert V via groups.io wrote:
This has nothing to do with your problem but could anyone tell me how I can get a new programer mine has stopped working. I left a message on the QSI website to no avail.


Sent from Yahoo for iPhone


On Sunday, August 7, 2022, 4:31 PM, bigfourroad <vannessco@...> wrote:


Glad you posted this Ed. I have a trio of S 2-6-6-6s with Pittman 8000s and Titans that would have the same heft as yours (irrelevant to this problem I believe). They do the same thing very occasionally and require a complete restart. They also shut down if pushed too hard for their 2 rating. Basically, they sample required amps output and decide what they can provide or not. Hoping kj or one of the other experts can make this explanation look more professional.

Chris R
Re: Titans shutting down

EdSauers
 

Chris,

WE only have one individual at QSI supporting us and that is Kelly Dorf, keep emailing him, he is super busy at times but usually does get around to replying.

He can probably repair your programmer, if you can't wait I might have a use one i would sell you.

Ed Sauers

On 8/7/2022 5:36 PM, Robert V via groups.io wrote:
This has nothing to do with your problem but could anyone tell me how I can get a new programer  mine has stopped working. I left a message on the QSI website to no avail.


Sent from Yahoo for iPhone


On Sunday, August 7, 2022, 4:31 PM, bigfourroad <vannessco@...> wrote:


Glad you posted this Ed. I have a trio of S 2-6-6-6s with Pittman 8000s and Titans that would have the same heft as yours (irrelevant to this problem I believe). They do the same thing very occasionally and require a complete restart. They also shut down if pushed too hard for their 2 rating. Basically, they sample required amps output and decide what they can provide or not. Hoping kj or one of the other experts can make this explanation look more professional.

Chris R
Re: Titans shutting down

Robert V
 

This has nothing to do with your problem but could anyone tell me how I can get a new programer  mine has stopped working. I left a message on the QSI website to no avail.


Sent from Yahoo for iPhone

On Sunday, August 7, 2022, 4:31 PM, bigfourroad <vannessco@...> wrote:

Glad you posted this Ed. I have a trio of S 2-6-6-6s with Pittman 8000s and Titans that would have the same heft as yours (irrelevant to this problem I believe). They do the same thing very occasionally and require a complete restart. They also shut down if pushed too hard for their 2 rating. Basically, they sample required amps output and decide what they can provide or not. Hoping kj or one of the other experts can make this explanation look more professional. 

Chris R
Titans shutting down

bigfourroad
 

Glad you posted this Ed. I have a trio of S 2-6-6-6s with Pittman 8000s and Titans that would have the same heft as yours (irrelevant to this problem I believe). They do the same thing very occasionally and require a complete restart. They also shut down if pushed too hard for their 2 rating. Basically, they sample required amps output and decide what they can provide or not. Hoping kj or one of the other experts can make this explanation look more professional. 

Chris R
QSI Titan-U reaction to a short.

Ed Rappe
 

I'm running an O scale brass GP7 with a Pittman 8000 series motor.  For many years it ran beautifully driven by a QSI Solutions Titan-U sound decoder with Q3 sound set 1123-244v9-3-2.
All was well until during an operating session one of the crew inadvertently ran the unit into a powered frog thrown the wrong way - creating a short.  The DCC Specialties PSX Power Shield digital circuit breaker instantly killed the power and began its automated reset tries until the short was removed by throwing the turnout.  At that point the locomotive would no longer responds to any commands.  I took the locomotive off the layout and the next day put it back on the rails and it ran normally.  Several weeks later a similar short happened with the same result.    Other brand decoders on the layout do not respond in that fashion.  It seems that the QSI decoder is doing its own timed reset. 

Is the decoder defective - or is there a CV setting or firmware update that can be applied to correct the situation?  I have a QSI Programmer.  

Ed Rappe 

 
Decoder "stuck" in reed switch closed state

ron wright
 

Just acquired an atlas u23b with factory qsi.  It is stuck like the Reed switch is closed, volume changes all the way to "max" and to quiet when on track.  Cut the reed switch and it still does the same.  Does not show sound options using jmri.  I figure the decoder is stuck with no possible way to get it out of this mode?
Re: Can a Q1a decoder’s firmware be upgraded to version 9?

kjlovesya
 

Hi Bruce,

  Sorry, the version 9 firmware will only work in a Titan.  The micro-controller architecture is far more advanced in the Titan.  For so many reasons, it's worth investing in the Titan U.   Josh did record the correct cab unit sounds to emulate your GN F7 with Leslie S3-K (or any other horn).

  You can order an new Titan from Kelly.


KJ
Can a Q1a decoder’s firmware be upgraded to version 9?

Bruce
 

In 2007 I acquired a Great Northern Empire Builder Walthers Proto F7 set.  Can I update that Q1a decoder to firmware version 9?
The GN standardized on the Leslie S3-K airhorn, which had a very unique sound.  But to write that sound file to the decoder I need version 9.
Re: Using ISE's ProtoThrottle with QSI Decoder Equipped Locomotives

Greg Elmassian
 

I'm not familiar with how to map functions to the buttons on the device... but F7 is the brakes.

I think all this is unique programming on the PT side...

Greg
--
check out my web site, lots of tips on trains, dcc, etc. https://elmassian.com email  greg@...
Re: Using ISE's ProtoThrottle with QSI Decoder Equipped Locomotives

Brian Huang
 

Thanks, Greg!

CV’s that I’m looking to control using the PT are:
Accel and Decel,
Individual control (on/off) of the Headlight and Rear Light,
setting-up and applying brakes
setting-up and controlling the throttle notches

Thanks!

Brian Huang
309-826-2992

On Jul 25, 2022, at 12:39 PM, Greg Elmassian <greg@...> wrote:

No, I looked at the PT, and may eventually get one, I use NCE, Zimo, and JMRI command stations, so probably interface to JMRI, so that will hook to the other systems also.

What specifically would you need to change for this throttle that would not be the same for any DCC system? The only thing I can think of is perhaps trying to get the diesel notching "tuned".

Greg
--
check out my web site, lots of tips on trains, dcc, etc. https://elmassian.com email  greg@...

Re: Using ISE's ProtoThrottle with QSI Decoder Equipped Locomotives

Greg Elmassian
 

No, I looked at the PT, and may eventually get one, I use NCE, Zimo, and JMRI command stations, so probably interface to JMRI, so that will hook to the other systems also.

What specifically would you need to change for this throttle that would not be the same for any DCC system? The only thing I can think of is perhaps trying to get the diesel notching "tuned".

Greg
--
check out my web site, lots of tips on trains, dcc, etc. https://elmassian.com email  greg@...
Re: Using ISE's ProtoThrottle with QSI Decoder Equipped Locomotives

Brian Huang
 

Greg,

I operate a Digitrax Command Station.  To interface the PT to Digitrax I use the Digitrax LNWI and the Iowa Scaled Engineering (ISE) ESU-Bridge receiver.

Do you have any experience using the PT with QSI decoders?

Kindest Regards,


Brian Huang
309-826-2992

On Jul 25, 2022, at 11:45 AM, Greg Elmassian <greg@...> wrote:

how are you interfacing the PT to your system? (It has various interfaces)

Greg
--
check out my web site, lots of tips on trains, dcc, etc. https://elmassian.com email  greg@...

Re: Using ISE's ProtoThrottle with QSI Decoder Equipped Locomotives

Greg Elmassian
 

how are you interfacing the PT to your system? (It has various interfaces)

Greg
--
check out my web site, lots of tips on trains, dcc, etc. https://elmassian.com email  greg@...
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