par PaulXpress
24 Juin 2022, 07:54
Bonjour Roland,
En voyant les éléments qui ont chauffés, il s'emble que se soit dû à un problème d'alimentations, C2 proche des diodes de puissance et C1, vue la largeur de la piste, vraisemblablement l'alimentation LocoNet.
Sur le matériel Digikeijs, les différentes alimentations ne sont pas isolées entre-elles. J'ai commencé à avoir le doute quand j'ai testé la connexion de ma plaque tournante avec le DR5052, le voyant d'alimentation s'allumé quand je branchais seul : soit le câble USB, le câble "Track input", le câble d'alimentation externe ou le câble Loconet.
Puis j'en ai eu la confirmation quand je suis tombé la dessus :
"Martin Gibson <Martin.gibson@deskdata.co.uk>Apr 25 #2500
Hi all,
This is more an anecdote than a question but offered for general knowledge.
A few friends and I operate an N scale layout as part of the Thamesiders group in the UK.
Our layout is modular and is physically long (~50m long) so, as we use Xpressnet for our controller bus, we also have a couple of the Lenz Xpressnet power boosters.
Yesterday, we had a problem where the DR5000 had ‘hung’ (separate discussion) and we wanted to power it off and reset it.
So we powered everything down - actually we unplugged the mains - but DCC remained - so we unplugged the DCC output - still the DR5000 continued working. Somehow a reset happened and we got back running but…. We actually didn’t plug the mains back in.
The DR5000 continued to operate without its own PSU and surprisingly without us realising drew power off the Xpressnet boosters.
End of session we realised what had happened, we also realised we’d been running 2 trains at a time but using the Xpressnet boosters for power.
I had been trying to run a 3 unit set of Atlas GEs with ESU sound decoders but couldn’t get them to work together as a consist, even though they were built as a consist and tested on my home layout.
We also have a DCC output monitoring device on the output from the DR5000.
The trigger for all of this was the DR5000 ‘hanging’ - this happens at least once per operating session - we have ~10 Lenz Xpressnet faceplates and operators moving around throughout the session and we get an issue where suddenly controllers (LH101 and Multimaus ) stop communicating on Xpressnet.
Because of the above issue, we had added Lenz Xpressnet boosters to try and overcome the issue.
So, as we packed up and tried to debug, we realised that:
- The Xpressnet boosters had not fixed our issue with controllers ‘hanging’.
- The DR5000 successfully ran entirely off Xpressnet power.
- We realised that when operating on the Xpressnet boosters, we were getting 10v output to track, where on the proper mains DR5000 power we get 15v to track.
- On the booster power alone you can run 2 trains !!
My reason for publishing this item? We never imagined the DR5000 would function off Xpressnet power and I suspect others will have the same revelation. Does this functionality have value - your decision.
As I said, this is offered as anecdotal and I’m not looking for a discussion though if you want to, then that is your choice but I can’t offer much more information now.
We’re running an NMRA meeting in Feering (Kelvedon) in Essex, UK on May 22nd and you’re welcome to join us for further discussion, see the Thamesiders website for details. (30 mins from Stansted airport, 60 mins from London by GreaterAnglia)
Thanks
Martin Gibson"
Dans ton cas, la première chose que je ferai, est de vérifier mon câblage et pour la DR5000, je ne la ferai pas réparée, tu n'as aucune garantie que d'autres éléments n'ont pas soufferts.
Jean-Paul
Jean-Paul
HO Fleischmann Profi. RocRail. ECoS (locos) et DR5000 (accessoires). EcosDetector (occupation), Uhlenbrock 63330 et Hall (passage). SwithPilot Servo (aiguillages) et Digikeijs DR4018 (éclairage et signalisation).