Hi Keith,
Have a look at the ReversPOT.jpg in the "Controllers" section in "files" of this group. Might be what you need.
I am using a modified Curtis ET-126 throttle (which is now offered already modified by ThunderStruck as the ET-134). Either version requires a relay interface, which is easily homebrewed, to create the required F-R switching.
One of these days I'll also upgrade to the newer G4 controller, hopefully when I choose to, not when I NEED to. :)
Have you noticed the MARS motor running quieter with the G4 controller? Is the G4 quieter "at rest", i.e. contactor energized, but no throttle?
-Tom
--- In electricboats@yahoogroups.com, "aweekdaysailor" <aweekdaysailor@...> wrote:
>
> Hi,
>
> Just installed a new Sevcon controller (don't ask...) and as a result had to put a new wiring harness in (the old Sevcon PMAC's for brushless are EOL btw - if you want spares, now is the time to hunt one up)
>
> The new harness came with a (very cheap) slider pot for the throttle, and it's way too sensitive (1/4" in either direction is full speed). Luckily I killed it with corrosion :) so I put a rotary pot in that I happened to have. That works a little better, but still too sensitive, and still exposed to the elements. But, it does fwd/rev without having a separate switch, which is nice.
>
> I have my old Curtis PB-6 throttle which I loved because it works off my pedestal's (mechanical) throttle lever and so was out of the elements belowdecks. But it was wired in a way that I had to have a fwd/rev switch in addition to the throttle. It has a 0-5K pot in it and presumably the pot is oriented so that at rest it's at zero. If I just rotate that pot 90 degrees (so that zero is now center of the range) - will that give me the fwd/rev I need? Is it OK to use a 5K pot instead of a 10K? (fwiw I think the old controller spec'd a 10K pot as well...but it came with the 5K)
>
> thx
>
> -Keith
>
> BTW - the new controller doubled regen - I can get almost 2amps (100watt) in bursts (I asked thunderstruck to drop the braking force quite a lot - maybe it's that, or just the new controller is more efficient)
>
No comments:
Post a Comment