(ET) curtis - KSI input

[David Brandt <ev_dave13 yahoo com>]

Well, I am at the point in my restoration that I need to start wiring up a 
controller board soon (if I ever get the hubs off the transaxle so I can 
tear into it...are they welded on or what?  Removed set screws, applied 
penetrating oil, applied heat liberally, tensioned with a gear puller, and 
hit it with a hammer and it still won't budge - either side - but I 
digress...)

A little background - I intend to power the field directly (with a 
fwd/reverse relay and a field weakening relay), and to power the armature 
using a curtis 1204 controller.  Very simple setup, and I believe some 
others have done the same thing.

The Curtis manual states that the KSI input is used to turn the controller 
on and off.  Does anyone have experience in doing that?  If so, I can use 
this to disengage the controller for switching direction, etc. without 
having to activate the controller contactor - something that would likely 
burn up a small contactor like what we use and/or burn up a precharge 
resistor and various other components if done too much.

Thanks!

David Brandt