Thread: Loss of signal in PWM cables.
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Unread 23-06-2002, 23:29
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Re: Loss of signal in PWM cables.
Posted by Justin Stiltner at 1/23/2001 12:05 PM EST


Student on team #388, Epsilon, from Grundy High School and NASA, American Electric Power, Town of Grundy.


In Reply to: Re: Loss of signal in PWM cables.
Posted by Michael Betts on 1/23/2001 11:56 AM EST:



: : Hey y'all . . .
: : This is my first post to this forum, but I've got a question that I haven't really been able to find an answer for.

: : Has anyone suffered any problems with their PWM cables with respect to signal loss? We've (We being team #271) got to run a PWM cable to a servo at the end of a long arm, and we'll need some ridiculous amount of cable. . .something like 12'. Being that the wire is so small in diameter, I was worried about internal resistance and all, and wondering if the signal would get that far.

: : Any advice?

: Michael,

: The servo is an extremely low current signal. Signal loss should not be a problem. I would suggest trying it first before committing to a design.

: An alternative is to cut a PWM cable in half and splice a larger AWG for the majority of the run.

: Mike

I think you may want to look at some 3 conductor sheilded wire. and solder this to the connectors on each ends and connect the shield to the NEG - side of the battery to reduce noise in the line. whatever you do tho you should solder all the connections Except on the controller and the servo.

Good Luck and tell us how it comes out
Justin Stiltner
Team #388
Epsilon
Grundy VA,

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