Re: [CAD_CAM_EDM_DRO] Re: Servo drives- Mariss

turbulatordude wrote:

>--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Polaraligned"
><polaraligned@o...> wrote:
>
>
>>Mariss, do you have plans for a drive to compete head to head
>>with the soon to be released Rutex R2000 servo drive? If so, what
>>is the time frame?
>>
>>
>
>What is the point ?
>
>The power that thing can deliver 200 volts, 40 amps will rip the
>column off the bridgeport, not just snap a 3/4 cutter.
>
>I'm still not sure about the watts and hp thing. but input is a max
>of 8,000 watts, so a 3:1 gearing = 24,000 watts.
>

Hmm, I think theres a conservation of energy problem there. Power is a
product of RPM and torque, gearing just changes the balance of the
numbers. But you knew that already I'm sure.

Either way, that is one heck of a lot of power.

>It does add brushless servos, but as I see it, that is really the only
>big selling point.
>
>

Seems like a selling point if you need really gargantuan motor power,
but for applications where the power density of the motor isn't
critical, it seems like brushless would be a waste of money. Brushless
motors on a BP, while definately a bragging point, just doesn't seem
practical. Maybe I'm missing something?

>The tuning software is VERY interesting. I am a little surprized no
>one wrote up a proceedure for using the Win-Scope (PC Oscilloscope via
>sound card) to tune the G320's.
>
>

I'm not familiar with tuning issues, what would you measure and what do
you tweak to optimize performance?

cs