RE: [CAD_CAM_EDM_DRO] Gecko 201 drive

Hi Art
What happened, why did it smoke? Was the output to the motors shorted or
too low resistance?
Derek


Hi Derek:

No, I had it right, if you don't hook a resistor ( or a pot goes open),
you get 7 amps' (or more ), One of my customers ran his with no resistors.
All three smoked instantly. A Short would just give you no current, and that
won't hurt.
Art
Master5 Software
http://users.andara.com/~fenerty/master.htm

----- Original Message -----
From: "High Tech" <hightechsystems@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Saturday, December 08, 2001 12:43 PM
Subject: RE: [CAD_CAM_EDM_DRO] Gecko 201 drive


> Art
> I think you mean a "shorted" condition not an "open" one. 7 amps on the
> gecko is "open" or no resistor or infinite. You would have to ask Mariss
> what would happen if you had a "shorted" condition or 0 ohms resistance.
> Derek B.
> Hi Ron:
>
> A Pot will work , but be warned, pots have a way of going bad and if it
> goes open in this application, the controller will let out its magic
smoke.
> I would advise putting whatever resitance is used for 7 amps in parallel
> with the pot so you never get an "open" condition. You just have to use a
> large enough resitance in the pot so the combined resistance varies from 0
> ohms (low current) to a max of the 7 amp resistance.
>
> Just a thought,
> Art
> Master5 Software
> http://users.andara.com/~fenerty/master.htm
>
> ----- Original Message -----
> From: "Ron Kline" <ulpilots@...>
> To: <CAD_CAM_EDM_DRO@yahoogroups.com>
> Sent: Saturday, December 08, 2001 10:33 AM
> Subject: [CAD_CAM_EDM_DRO] Gecko 201 drive
>
>
> > The 201 uses a 1/4 watt resister to set the output
> > current , do any of you know if I could use a pot
> > instead so I can change the out put when I'm using the
> > drivers on my other machines .
> > Thanks
> > Ron K
> >
> > __________________________________________________
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