Re: [CAD_CAM_EDM_DRO] 2 Fried G210's in a single day :-(

audiomaker2000 wrote:

> Man.. this day is *not* going well.
>
> I just finished wiring up my Brideport Boss with my new Gecko 210's.
> I turn on the power.... Gecko 1 (X axis) LED glows dimmer than the
> other two so I power off... re-check the connections and voltage and
> power back on.... The drive is gone... no LED, no nothing.
> So, I figure I'll get back to that later and I start playing with
> the Z and Y axes...all is fine. Then I decide to wire up the limit
> switches so I power off the machine, but decide to move the Z axis
> which is very close to a limit for accessability so I power back on
> to move the axis and WOWOWOW... My arc welder makes less sparks!
> I have no clue what is wrong here. My voltage is steady at 72vdc,
> everything seems to be wired correctly and I cannot detect any
> shorts. In any case, now the Z axis is cooked (literally), and it
> had worked fine not two minutes earlier.
>
> I'm going broke at this rate. (well, I was already broke)

Are you sure that you have a reliable 72 V? Is there any
possibility is might surge above that? You'd better check the wiring
out with Mariss, anyway, as some feature of wire size, wire length,
wire routing, etc. may be responsible for blowing out these drives.
You may have to run at a lower voltage, as 72 is getting close to
the design limits. Do you have a relay that connects the main DC
supply to the drivers? This may be causing a voltage spike.

Jon