When Karst recommended the GSMA, I immediately bought 2 of them and I never saw the updated recommendation to use the GSMB. I assume the GSMA is "good enough" or is it worth spending the $ for the GSMB?

You are right :)

The unit now shows the IP address on the front panel and I can control trains using the Z21 app on my iPad etc.

I use decoder pro to tinker with CVs for locos in the programming track. ?This works fine with the USB connection but I can’t get JMRI to work with Loconet over TCP and use the IP address that the YD7001 has. ? I’m probably not understanding something obvious but if someone could point me in the right direction….

Hi

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I have been discussing the possibility of the DR60710 power supplies destroying the equipment it is providing power to (YD7001 command station, DR5033 etc.) and what we should consider for a replacement power supply. He initially suggested the A version of the GSM60 series, but then corrected this to be the B version.? See this thread ?/g/YaMoRC-Digikeijs/message/4643.

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Hope this helps.

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Jay Lennox - Toronto, Canada

On Thu, Dec 5, 2024 at 08:10 AM, Dennis Cherry wrote:

Attached is the Meanwell Data

But that is for the incorrect "A" version ;)

Yes. xx means 15 or 18 Volts.

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AFAIK that are the only suitable versions in the series.

On Thu, Dec 5, 2024 at 06:38 AM, karst.drenth wrote:

GSM60Axx-P1J series is a good choice.

Correction, it is the GSM60Bxx-P1J series

Hi Jay,

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Can the DR60710 power supply cause damage to controllers it provides power to ?

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Oh YES it can !

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Look....

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But first:

It CAN be Short on the DC side, must most likely it's the Voltage-Selector slider that malfunctions or any of the internal capacitors get bust. Mostly the PSU then outputs 33VDC :O Then the equipment's safety crow-vbar kicks in. That however can "only" take 5 Amps. Then comes the second flwa into play: The PSU keeps on pushing current until it starts burning a) itsself, b) the equipments crowbar...?

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1. Has anyone seen this problem ?? If yes, what was the source of the short on the DC side ?
   
   Oh yes, more than I like. Even in the time I still did design work for them, I saw an Eployee destroying 5pcs YD5052 (brand new!! ) with a faulty PSU which ouput 26V ...
   
   
2. How do we tell if we have an old power supply -? all 10 of them are DR60710s ??
   
   All of the ADJ types, the ones with the voltage selector
   
   
3. Has anyone implemented a 3.5A fuse in the DC line to prevent problems ?
   
   IMHO that is only curing the symptom.
   
   
4. Does the DR60710-M, which I assume is a newer power supply, address the problem of a short on the DC output side ?
   
   Same el-cheapo PSU with voltage selector, just that the China-Man put an Digikeijs Label on it.
   
   
5. What other power supplies are people using the the DR5000, YD7001, etc ?
   
   Many use this dangerous PSU. We advise our YD7460 PSUs, but also Meanwell GSM60Axx-P1J series is a good choice.

I appreciate this is an older post, but assume the right product is the GSM60B18-P1J version, as double insulated (the box in box symbol). The "A" version is not.

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Hi

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There is a post on the FaceBook group ?that suggests that if there is a short on the DC output side, the DR60710 power supply cannot handle this because it does not have a built in circuit breaker. As a result of the short the DR60710 is damaged internally and starts sending high voltage to the controllers it is providing power to (controllers = DR5000 / YD7001 command station, DR5033 boosters, etc).? We may be interpreting the post incorrectly, so a translated version of it follows:

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“Just another warning in relation to the old Digikeijs ADJ Power Supplies...

Translation of?'s message using Deepl:

On the photo you can see what can happen if these Digikeijs ADJ power supplies continue to be used without an additional 3.5A fuse in the DC line using the example of a YD7001. As we should know, this power supply outputs up to 33V if the voltage selector switch has a loose contact. This happens more often the older these things get. At this moment, the protective diodes that are supposed to prevent worse things from happening are destroyed. But now comes the second major fault of these power supply units, because they continue to fire 7 to 9 A at the poor YD7001. As we also know, the power supply units have no short-circuit protection. The end result is a charred board, melted housing halves, a soldered DC connection and detached conductor tracks. A fuse may not prevent the initial destruction of the diodes, but it will at least prevent this immense damage caused by charring! So consider carefully whether it is not time to replace the power supply units with safer versions!”

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There is also a video: https://www.youtube.com/watch?v=xYV-M2JXvk0

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Based on this we have questions that hopefully someone in this group can comment on:

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1. Has anyone seen this problem ?? If yes, what was the source of the short on the DC side ?
2. How do we tell if we have an old power supply -? all 10 of them are DR60710s ??
3. Has anyone implemented a 3.5A fuse in the DC line to prevent problems ?
4. Does the DR60710-M, which I assume is a newer power supply, address the problem of a short on the DC output side ?
5. What other power supplies are people using the the DR5000, YD7001, etc ?

Any information you can provide will be appreciated.

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Jay Lennox

Toronto, Canada

Correct

There is no manual, instructions are on the bottom-side of the PCB ;)



Just 1:1 connection to the decoder.?

Does anyone have a diagram showing how to wire up and use the YD6942? It might be a solution to a problem and I would like to know how it used :)

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Or has anyone seen manual?

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Thanks

no problem

I bought my kits from

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These seam reasonably priced to me.? I am not an electronics engineer but I can solder and follow instructions - you pay for the parts and the knowledge the enclosed bits do what you need.

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My droppers are fed from power bus terminal blocks as seen on Chadwell Youtube.? The 'negatives' run through a DR4088s.? The suppressors are connected across one of the terminal blocks.

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Initially I only installed them on the power buses and that didn't help the problem.? I then realised this was a bit silly and installed one across the DCC accessory bus as this feeds the? ?Digital IPs.

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All seems good, not had to reprogramme all those blasted point motors since.? No false positives on the? DR4088s, now happily running my YD9401.

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Adam