[sudo-discuss] wheelchair motor controller

[Jake]

for the brake resistance - MEASURE it with a mutimeter :)

and yes you're right, i meant to say two 12v bulbs in series.

-jake

On Wed, 15 Jul 2015, Robert Benson wrote:

> found teh info on motor http://www.cncwright.com/E690.html (looks like it
> might be 120vac motor w/24vdc safety brake)
> but nothing on the solenoid resistance - left a msg w/electrocraft support.
> 
> as for the bulbs in series, i assume you meant "two identical 12v bulbs in
> series" otherwise i'm confused.
> 
> can't help wondering if bypassing the controller & driving with 120ac/24dc
> might be better/slimmer especially if building more for motorized lighting
> trusses.
> 
> ty for teh info
> 
> On Wed, Jul 15, 2015 at 1:46 PM, Jake <jake at spaz.org> wrote:
>       wow, you have done well.
>
>       the answer is that it detects the missing wheel because it can't
>       see its BRAKE electromagnet.
>
>       the solution is to connect a resistor  to the place where the
>       other motors' brake coil would connect.  it should be a resistor
>       of a similar value to the brake coil on the motor you do have,
>       or maybe more ohms so it uses less power when it gets energized.
>
>       a lightbulb might work, but it will see 24VDC when energized, so
>       it would need to be a 24v bulb or two identical 24v bulbs in
>       series.
>
>       as for the anderson connectors on the motor controller, please
>       don't cut them or mess them up - if you need to connect to them
>       (for example to connect to the brake contacts for the missing
>       motor) there should be other anderson terminals in the basket
>       where the motor was.  Thanks for not hacking up the wires on the
>       motors controller.
>
>       and congratulations, you're close!  once it works, we can use
>       the other electronics (this is from an old robot) to automate
>       the process of sending the screen up and down.
>
>       -jake
>
>       On Wed, 15 Jul 2015, Robert Benson wrote:
>
>             Hey all, I'm trying to build a winch for the 14'
>             projection screen that going up over the ballroom
>             stage out of a wheelchair motor assembly. Per Jake's
>             suggestion,
>             I hacked 2 server PSUs to get 24v at 14a but the
>             controller is not working and the error code says
>             the right wheel/motor is missing/not engaged. Anyone
>             know what I am
>             missing? Do I need to jump something to get the
>             controller to engage while it is "incomplete"?
>
>             Thank you,
>             robb
>             let thar b lulz
> 
> 
> 
> 
>