T&T: Switches

[Peter Bennett]

Friday, November 21, 2008, 8:45:36 AM, Trawler336 wrote:

Tac> Ahoy List

Tac> Speaking of switches, I am upgrading my helm on my  trawler.   I have 3 new
Tac> seachoice wiper motors for each  windshield.  These motors have 3 connections,
Tac>  
Tac> +12vdc, 

Tac> -12vdc

Tac> "S" 

Tac> How should I connect these  motors to allow for all combinations of single,
Tac> two or all three on or  off.  

Tac> Does the "S" mean Switch??

Tac> Thanks for any  suggestions,

Tac> Ciao, Capt Joe Guarino

I'd suggest one switch for each wiper.  You could do it with a
multi-position switch, but it would (I think) need an 8 position
switch, and would be very confusing to operate.

I'm guessing that the wiper motors are self-parking.  If so, probably
the +12 should get a permanent +12V, while the switched power goes to
the "S" terminal (or possibly vice-versa).  Is there any documentation
on the motors - that should tell you how they should be connected.


-- 
Peter Bennett, VE7CEI    Vancouver, B.C., Canada
Ennos 31 "Honeycomb"
GPS and NMEA info: http://vancouver-webpages.com/peter 
Vancouver Power Squadron: http://vancouver.powersquadron.ca