Subject:
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Re: Legomodular standards?
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Newsgroups:
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lugnet.trains
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Date:
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Thu, 30 Mar 2000 02:31:37 GMT
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Viewed:
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2678 times
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James Powell wrote in message ...
> In lugnet.trains, Tom Stangl writes:
> > How will you handle engines/trains with multiple motors as they cross the
> > transition from one trackset to the other?
>
> As long as the 2 controllers are set to the same 'notch', you will not have • any
> real problem. The motor will get 2x voltage for the period of time that it
> takes with one set of wheels on one power supply, and the other from the • other
> (not all that long really). The 2nd motor will drop off in speed, and then
> pick up again as the other one is fully on the 2nd joint, and it will • repeat
> with the 2nd motor.
>
> (in other words, there is no problem with the transition)
Well, actually, it won't get twice the voltage...
There are actually two considerations of crossing a gap:
1. A single motor will temporarily bridge the gap. I'm assuming the 2 wheels
on each side are electrically connected (but even if not, the temporary
bridging just becomes extremely short unless the gap is fairly large (and
the gap actually being a section of non-conductive rail, if the gap is just
a separation, a single wheel will still bridge the gap when in falls into
the "bump"). What this temporary bridging will mean is that both controllers
will be supplying power to the motor, and the motor will probably run a
smidgen faster than otherwise given the length of conductor between the
motor and the controller. This short connection of the two controllers is
unlikely to cause any damage (even if they have reverse polarityby mistake).
2. A dual motored train will have a short period of time where one motor is
powered by one controller, and the other motor by the other controller. This
again will mean more power is available, so there will be a short jump in
speed (but not much, since the purpose of having these multiple controllers
is to minimize the problems of being too far from the controller). The
motors will equalize any slight differences in power supplied by the two
controllers just like they equalize the differences between themselves. Of
course if the two controllers are set to different power levels, a problem
is more likely to occur.
Frank
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Message is in Reply To:
 | | Re: Legomodular standards?
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| (...) As long as the 2 controllers are set to the same 'notch', you will not have any real problem. The motor will get 2x voltage for the period of time that it takes with one set of wheels on one power supply, and the other from the other (not all (...) (25 years ago, 30-Mar-00, to lugnet.trains)
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