On 2/10/2011 1:49 PM, David Plamondon wrote:
If one wanted to replace just the first three speeds, and not worry about field weakening, is there a simple controller that could do this? To my understanding the controller options that are available have special "software" that allows for the weakening. If i didnt want that, what possible options are there? I would basically be looking to replace the ribbon resistor and card on a E15 - possibly a E20. Thoughts?
Well for that anything that can do 36 volts DC at 200 or so amps peak. A Curtis, a EV1 SCR thing, heck even a big switch :-)
Controlling the field is where it gets "cool", however there's nothing preventing you from putting in a dial resistor labeled "go even faster". Just don't forget to have a spare motor if you smoke it.
Chris