Gecko Drives with 8A motors

Hi Jon,

Actually, I was thinking of the "current set" resistor to be attached to
the Gecko G201/G210 drives. 18K in my case (2A), "open" for the 7A
case. Sorry for the confusion. I should have been more specific, even
'tho Mark WAS already talking about Gecko's!

Alan KM6VV

Jon Elson wrote:

>
> Alan Marconett KM6VV wrote:
>
> > Hi Bill,
> >
> > Should work OK if you use the proper resistor to limit the current.
> > Won't hurt the drives, you'll only get a little lower torque.
> >
> > Alan KM6VV
> >
> > mailliw999@... wrote:
> > >
> > > Hi,
> > > I have two Superior Electris steppers, Type KML093F-109. These are
> > > 2.06 Volt, 8.2 Amp, 200 Steps/Rev motors. Is it possible to use
> > > Geckos to drive these even though the Geckos are 7 amp max? Will this
> > > destroy the drives, or will I just get lower performance from the
> > > motors than I would with a drive that is rated for the full amp
> > > rating of the motors? If Geckos will not work, can anyone suggest
> > > other options than Microkinetics 10A drivers?
>
> Gecko drives do not use resistors to limit current. You are
> thinking of outdated R/L drives. Chopping-type drives use a
> current sensor, and switch transistors to limit current.
>
> Jon