Re: 24-48 Volt Motor Controllers

[Dave Paxton <dlpaxton@GATE.NET>]

John Wayland wrote:

>       What kind of current draw is this vehicle going to have? The

I would probably be interested in a 300 to 400 amp controller. I have
two objectives. First of all is to get my "small project" started. I
will be experimenting with different motors, modifying a couple, and
possibly trying to build my own perm mag motor. If I tire of the project
(building a 1903 olds replica) I may use the controller and final motor
in a motorcycle. My "big project" died on the vine, the 15 ton glider
sold for way too much money so I scraped the whole idea.

> 36-48 model. There are also the 1205 model Curtis controllers, with the
> 1205-101 rated from 24-36 volts at 400 amps, and the 1205-201 rated from
> 36-48 volts at 350 amps

This sounds promising, are they expensive?

>      I am currently installing a Curtis 1204-301 24-36 volt, 175 amp

One or two of the motors I plan on working with might be this light but
I think the original 300 to 400 amp would be better, if the motor only
draws 175 to 200 amps it will still work, but if this controller is used
with a motor that needs 300 amps it won't work out.

> model in my three wheeled industrial cart, as an upgrade from the
> cart's  jerky, current wasting three-step resistor controller. I used a
> 1204-401 48 volt 275 amp model in the Black Ghost motorcycle...it works
> great, even loaded into the demanding direct drive setup! These compact
> small controllers thankfully, do not generate any offensive frequencies
> that cause the motor to squeal either!

Great, I heard the "squeal" you guy's have been talking about for the
first time a short while back. It would drive me crazy after a while.

>     The DAX 36 volt, model DAX MC-B controller I am using in the Heavy
> Metal Garden Tractor is a 300 amp unit, and what a gorgeous controller
> it is! I have used the tractor for some pretty strenuous duty, and the
> DAX has never even gotten warm! As with all DAX controllers, this unit
> doesn't generate any offensive frequencies that cause motor squeal. Its
> rounded-square 'ice cube like shape' cast aluminum case has integral
> heat sink fins all around it, and the whole package is nicely finished.
> The controller also has a DIN type plug-in harness for the enable and
> throttle pot connections. DAX also builds a nice pot box that is very
> similar to the Curtis PB-6 unit.

I am not familiar with DAX are they a comparable unit to Curtis and are
they in the same price range?


Thanks for the info
Dave
Re: 24-48 Volt Motor Controllers