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Offline diavolino  
#1 Posted : 21 June 2022 19:19:12(UTC)
diavolino

Italy   
Joined: 19/03/2022(UTC)
Posts: 2
Location: Lazio, Rome
I have a set of wagons with interior lighting and current conducting couplers.

The light stays always on; I would like to convert the wagons so that it I can control the lights digitally.
I control my layout using MS2 and plan to upgrade to CS3.

Which decoder do you suggest using for such a conversion? Any advice for performing such a digital "conversion"?

Thanks in advance for the help.
Offline kiwiAlan  
#2 Posted : 22 June 2022 12:42:01(UTC)
kiwiAlan

United Kingdom   
Joined: 23/07/2014(UTC)
Posts: 6,855
Location: ENGLAND, Didcot
Originally Posted by: diavolino Go to Quoted Post
I have a set of wagons with interior lighting and current conducting couplers.

The light stays always on; I would like to convert the wagons so that it I can control the lights digitally.
I control my layout using MS2 and plan to upgrade to CS3.

Which decoder do you suggest using for such a conversion? Any advice for performing such a digital "conversion"?

Thanks in advance for the help.


There are a couple of ways you could do this, depending on what you may have on hand.

1. If you have converted some locos from 6080/6090x decoders to later model decoders then the decoders you removed could be used to switch the lighting. These decoders will use MM protocol only, but that should not be a problem.

2. ESU make a function only decoder for doing this sort of work. I don't know off hand if it does mfx, if you want them to self register.

3. One of the members of this forum uses TAMS decoders for this purpose. Again I think it is a function only decoder, I don't know if it does mfx.

Offline marklinist5999  
#3 Posted : 22 June 2022 14:01:30(UTC)
marklinist5999

United States   
Joined: 10/02/2021(UTC)
Posts: 1,659
Location: Michigan, Troy
ESU decoers which have an M4 description are mfx. Marklin puts these in some newer cab control cars, so they must have one.
Offline bph  
#4 Posted : 22 June 2022 14:40:45(UTC)
bph

Norway   
Joined: 04/08/2018(UTC)
Posts: 506
Ciao
In addition to the good suggestions from Kiwiallan, you can also use an mLD3/mSD3 decoder e.g. 60972

they can be programmed to function as pure function decoders and they can then handle up to 1.1 amps on aux 5/6, ref the manual. You must set the motor type to 0, aux 5/6. (The green/blue wires then become aux 5/6).
note that you can also use the "normal" aux out in combination with a relay if the lights draw more power than the decoder can handle on the aux.

the mLd3 programming can be done with a CS3, either directly or with the mDecoderTool software through the CS3.

an old 60960 can also be used, but personally, I don't recommend that unless you have one laying around or you can get one extremely cheap.
Offline mario54i  
#5 Posted : 22 June 2022 18:37:18(UTC)
mario54i

Italy   
Joined: 28/03/2007(UTC)
Posts: 258
Location: Torino,
If you use single pole conductive couplers (that in analog are connected somewhere to slider) and current returns to rails through wheels you cannot use the AUX output of a function decoder, or lights will flicker.
The AUX output must drive a relay that connects the line passing through coaches to slider.

thanks 1 user liked this useful post by mario54i
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