 Joined: 30/08/2002(UTC) Posts: 1,288
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WIthout opening the locomotive, how would one know if there is a permanent magnet (i.e. a DC motor) in Roco AC engines, and other non-Märklin three-rail non-digital AC engines? If there is a permanent magnet, what is your experience installing a Märklin 60902 decoder (or any other Märklin-Motorola compatible decoder) into the engine? <img src=icon_smile_question.gif border=0 align=middle> Peter |
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Joined: 19/10/2001(UTC)
Posts: 2,379
Location: Lindome, Sweden
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To be corrected: I don't think that any manufacturer beside Märklin and HAG use all current motors. When they make a AC model they only install a slider and insert a direction relay. Nowadays I think they only supply the latter; inside is a NMRA plug with 2 diodes for the light when running DC, this simple plug is replaced by the plug of the relay (or decoder with plug).
I'm not thinking of installing a 60902; I would install a Lokpilot instead. Which has the plug. I see no reason to pay for a 60902, and the extra work with installation (if NMRA socket). OK; here is an answer to your question: if the box is marked with the NMRA plug symbol it certainly is a DC motor.
BTW, the 5 pole motor of Roco is really good!
Good luck.
Lars
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Joined: 28/03/2003(UTC)
Posts: 48
Location: Siegerswoude, Friesland
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Peter,
Roco engines are already DC, so no need for conversion. As for the decoder, use a LocPilot. They are a perfect match (Roco uses LoPi's in their AC-models).
Gino Damen
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IB Digital,EP-III, DB&ÖBB |
Märklin DB - DC USA UP/BN - IB Digital |
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Joined: 12/01/2002(UTC) Posts: 2,578 Location: Sweden
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There is one disadvantage with the LokPilot though: It does not apply any speed / acceleration control in conventional AC mode. The Märklin 60902 actually applies the maximum speed and acceleration delay in conventioal AC mode too.
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Joined: 25/07/2001(UTC)
Posts: 11,165
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And so does the Lenz 930 (that Roco used as their "AC"-decoder just prior to the Lokpilot)... It also has a relay on board so it remembers the last direction. Nice decoder, even if it has its own issues of implementation considerations... With Roco 5-pole motors, it works fine though... |
Juhan - "Webmaster", at your service...
He who asks a question is a fool for five minutes. He who does not ask a question remains a fool forever. [Old Chinese Proverb] |
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Joined: 30/08/2002(UTC) Posts: 1,288
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Hi all, Thanks for your comments! So, anything else than Mä or HAG (like Rivarosso, Brawa etc.) actually has DC motor. <img src=icon_smile_cool.gif border=0 align=middle> Peter |
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 Joined: 18/12/2002(UTC) Posts: 251 Location: Fort Wayne, Indiana
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I'd like to come back to the original question again because it is of considerable interest to me...the conversion to digital of ROCO AC engines.
Specifically, I have a ROCO E140, E112, and a Rivarossi E17 - all the rail.
What say you to the conversion of these engines with the LokSound2 decoder?
I have one former Marklin HAMO engine - the BR 86173 that was converted to three rail using the Lokpilot.
Peter Neumann
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