Re: Gecko Faults

I could only run a reduced setup on one axis, the other two need to
be direct drive. Looks like steppers might have to do it...Can you
run steppers with 320's?

--- In CAD_CAM_EDM_DRO@yahoogroups.com, R Rogers <rogersmach@y...>
wrote:

> That should be enough torque and way plenty of amperage to keep up

with it, You probably need reduction on the drive by way of a belt.
Like 2 or 3 : 1. Steppers will work without reduction because all of
their torque is achieved at hold and low RPM. Servos differ in that
their torque is achieved at higher RPM's. Do a "google" for "Stepper
versus Servo comparison". There is a graph that will show each types
torque characteristics.

>
> Ron
>
> kadeshan <kader@v...> wrote:
>
>
> Jon,
> I am using gecko 320's and a 36v 25 amp power supply. I am using
> Mach 2, when I jog the machine they fault, but I can go to mdi
> screen and type g01 x1 f2 and they will run that way, but they also
> fault out from time to time doing that. They are you 15 lb-in

servos

> which would be 240 oz-in. Or atleast thats what I figured it to be,
> which might be my problem.
> > >
> > These motors should be plenty sufficient. What drives are you
> using?
> > Gecko 320? What do you mean they fault almost immediately?
> > Do you mean the servo amps are stable and resist any attempt to
> > move the machine manually, but they fault when commanded to
> > move by the CNC program? What CNC program are you using?
> > Can you jog .0001" at a time? How about .001"?
> > What is your power supply voltage?
> >
> > Jon
>
>
>
>
>
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