Re: Window Lift Motor Installation - Got Power? ** ADDITIONALINFO **

[Glen Hoag <hoag@xxxxxx>]

> On Mon, 7 Mar 2005, Greg Taylor wrote:
>
> > door, I had power to BOTH wires simultaneously.  This was with the switch
> > flipped either up or down ... power to both wires.  I'm assuming that since
> > these are reverse polarity motors that I should only have power to 
> > one wire at
> > a time, dependant on the direction of flip switch.
>
> That's the key...
>
> I don't have the TSM, but here's the idea:
>
> if you call the two wires off the motor "A" and "B" (since I don't know
> the colors) the switch wiring does this:
>
> for UP:
>
> A goes to BATTERY
> B goes to GROUND
>
> for DOWN:
>
> A goes to GROUND
> B goes to BATTERY
>
> Hope that hint helps...

The way this implemented is to use a double pole double throw (DPDT) 
switch with center off.  The two motor wires go to the two middle 
contacts.  Battery goes to one end of the first pole and the opposite 
end of the second pole.  Ground goes to the two remaining contacts.

Looking at the back of the switch:

                  Motor
          +-------------------+
          |                   |
  Battery |   |     |     |   |  Ground
          |                   |
  Ground  |   |     |     |   |  Battery
          |                   |
          +-------------------+
                  Motor

If up and down are backwards when you operate the switch, reverse the 
motor leads.


--
Glen Hoag
hoag@xxxxxx                             '75 Pacer 258 (x3)
Limestone County, Alabama               '76 Pacer 258 (for parts)
                                        '81 Concord DL 258

AMO #7895    AMCPC #471                 '82 Spirit 151