Subject:
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Re: Long term effect of PWM on train motors?
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Newsgroups:
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lugnet.trains
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Date:
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Wed, 21 Jul 2004 16:16:09 GMT
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Viewed:
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1624 times
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In lugnet.trains, Guido Heunen wrote:
> Hi,
>
> I went through a lot of postings concerning PWM (Pulse Width Modulation) in this
> newsgroup. My conclusion is that it is possible.
>
> However, I haven't seen any description of the longterm (after) effects of PWM
> on the motor itself.
>
> So I have a few more questions:
>
> - Is there an "official" statement from TLG (or Jake) that the motor can handle
> PWM?
>
> - What is the ideal frequency? I read some books about model rail roads where it
> is stated that the frequency must be between 50-100Hz.
>
> - Did someone exchange the motor for another brand motor (Faulhaber or so...)
>
> I want to experiment with pure PWM (no RCX or DCC) and to make use of a block
> controled layout. For me this will be a challenge in both ways: lego wise and
> electronics.....
>
> Guido
I've been running Mark Reiley's LDCC on omy layout at home and at rtlToronto
train shows--my 9v train motors seem to still be just fine. I occasionally take
'em apart and clean the contacts and such, and put a squirt of graphite on the
various moving bits when I put the motor housing back together.
I do expect that sooner or later one of the motors will stop running, but it's
been a year+ of some of my motors running nightly and for weekends at shows. I
do tend to limit my consist to a maximum of 7-8 cars--I think that helps--less
strain on the motor and various moving bits.
Dave K
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Message is in Reply To:
 | | Long term effect of PWM on train motors?
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| Hi, I went through a lot of postings concerning PWM (Pulse Width Modulation) in this newsgroup. My conclusion is that it is possible. However, I haven't seen any description of the longterm (after) effects of PWM on the motor itself. So I have a few (...) (20 years ago, 21-Jul-04, to lugnet.trains)
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