Re: (ET) Controller Needed?

["daveb" <daveb seanet com>]

well if you can be satisfied with only one speed and jerky starts you 
could 
do it that way, perhaps.  but you will quickly find the need to go slower, 
though.

the problem with the original set up of contactors and resistors is the 
waste 
of energy to go slow by "shunting" the excess up to big resistors where 
the 
energy is wasted as heat that does nothing.

dave
seattle

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---------- Original Message -----------
From: "Perry Cain" <perry suppleye com>
To: <elec-trak cosmos phy tufts edu>
Sent: Wed, 9 Jun 2004 12:59:12 -0400
Subject: (ET) Controller Needed?

> I am not an electrical engineer, so please be kind if this is a 
> stupid question.
> 
> Why is a controller needed at all?  Can't on just hook up switches 
> and such to: Turn to Drive power on. Set reverse. Throttle. Etc.?
> 
> Has this been tried by anyone?
> 
> (I have an Alltrax controller, so I was just curious...)
> 
> Perry Cain
> perry suppleye com
> 330-668-3937
> 
> _______________________________________________
> Elec-trak mailing list
> Elec-trak cosmos phy tufts edu
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------- End of Original Message -------