Re: (ET) 4QD Controllers

["Bob Murcek" <rmurcek geisinger edu>]

I used a 4QD Scoota 120A controller and it's working fine, although my 
tractor has an admittedly easy life.  There's at least one other person on 
this list with a 4QD.

I went with that controller (2-quadrant) and field-reversing before I came 
to understand that the series field on the motors are small and just for 
speed compensation and that a 4-quadrant controller would therefore work 
fine.

A nice place to mount these is on the back of the cast aluminum front 
grill, which is a great heat sink.  It's a bit messy to get the hot spot 
of the controller lined up with a rib of the grill, but it's worth it.

>>> <Bfayette aol com> 3/11/2003 10:01:34 AM >>>
I need to get my E14 project on track again. I was going to play around 
with my own controller design, but time limitations are kicking in. I 
really like the features of the 4QD controllers. I am looking specifically 
at the 4QD-300-48. Anybody have any experience/comments on 4QD or other  
conmmericial controllers? Thanks!
  Brad