Re: blown Gecko - shorted output ?
Posted by
turbulatordude <davemucha@j...
on 2003-02-26 14:01:43 UTC
--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Jeff Goldberg" <jeff@w...>
wrote:
Short of testing the house earth ground, I am fairly confident it is
installed correctly. 1/4 alum 'wire' from the main circuit breaker
panel to a exterior earth gound. since the water system is
completely shielded from any exterior ground by the fact it turns to
plastic as it enters/exits the structure, no plumbing ground is
useful. Besides with the higher than expected ph, I'm planning on
replacing the copper with plastic in the fall.
All the recpticles are 3 prong, each box has a screwed in ground wire
(no clips) to the box, and each receptcle is wired to the ground
wire - wire nuts- not contact and prayer. all plugs are 3 wire with
all actually being connected to ground. nothing pulled out, no 3
into 2 adapters.
I am concerned that somehow the gremlins are going to and fro with
enthusaum and wreaking havoc with my circuitry.
Obvioulsy I'm pulling my hair and grasping at straws. I figured that
if all AC were strictly an only on the AC side of the power supply
and only DC on the DC side, I would not be having the problem. It
seems the ground is the only part that everything shares enough to be
close to the DC side. the ground is electrically (throught the
frame) connected to the stepper case. ditto to the Gecko heatsink.
Also, i figure the only other wires are the opto inputs and power
from the PC.
Besides, the DC side is by nature a floating ground. and the AC
negative is also ground, just not connected to the frame of the table.
I'm missing my pnuematic days. then I could hear the leak or not hear
a blockage.
Dave
wrote:
> Dave:pipe has
>
> Bad idea to float the ground. You should make sure that the water
> a ground clamp on the metal on the house side. It should give agood ground
> through your house on the COLD water pipe as long as you do nothave any PVC
> portion or rubber fittings or such between where you are picking upthe
> ground and the water pipe ground clamp. If you have a metallicwiring system
> (Metal boxes and BX cable rather than romex and plastic boxes), youshould
> be able to pick up a ground from your electrical raceway system.shorts to
>
> Floating ground -- BAD idea. You can hurt yourself if something
> ground or destroy equipment with ground loops, static discharges,etc.
> Grounding is a safety issue. If you have a problem with yourhouse's
> grounding system, fix that, don't try work arounds. If you go tothe
> library (its not on-line as far as I can tell) and pick up areference to
> the National Electric Code, it will talk about how to establish agood
> grounding system.<snip>
>
> Regards,
>
> Jeff
>
>
Short of testing the house earth ground, I am fairly confident it is
installed correctly. 1/4 alum 'wire' from the main circuit breaker
panel to a exterior earth gound. since the water system is
completely shielded from any exterior ground by the fact it turns to
plastic as it enters/exits the structure, no plumbing ground is
useful. Besides with the higher than expected ph, I'm planning on
replacing the copper with plastic in the fall.
All the recpticles are 3 prong, each box has a screwed in ground wire
(no clips) to the box, and each receptcle is wired to the ground
wire - wire nuts- not contact and prayer. all plugs are 3 wire with
all actually being connected to ground. nothing pulled out, no 3
into 2 adapters.
I am concerned that somehow the gremlins are going to and fro with
enthusaum and wreaking havoc with my circuitry.
Obvioulsy I'm pulling my hair and grasping at straws. I figured that
if all AC were strictly an only on the AC side of the power supply
and only DC on the DC side, I would not be having the problem. It
seems the ground is the only part that everything shares enough to be
close to the DC side. the ground is electrically (throught the
frame) connected to the stepper case. ditto to the Gecko heatsink.
Also, i figure the only other wires are the opto inputs and power
from the PC.
Besides, the DC side is by nature a floating ground. and the AC
negative is also ground, just not connected to the frame of the table.
I'm missing my pnuematic days. then I could hear the leak or not hear
a blockage.
Dave
Discussion Thread
turbulatordude <davemucha@j...
2003-02-26 09:18:24 UTC
blown Gecko - shorted output ?
Alan Marconett KM6VV
2003-02-26 11:05:10 UTC
Re: [CAD_CAM_EDM_DRO] blown Gecko - shorted output ?
Lee Studley <indigo_red@q...
2003-02-26 11:50:29 UTC
Re: blown Gecko - shorted output ?
turbulatordude <davemucha@j...
2003-02-26 12:26:08 UTC
Re: blown Gecko - shorted output ?
turbulatordude <davemucha@j...
2003-02-26 12:42:29 UTC
Re: blown Gecko - shorted output ?
Jeff Goldberg
2003-02-26 13:26:53 UTC
RE: [CAD_CAM_EDM_DRO] Re: blown Gecko - shorted output ?
Tony Jeffree
2003-02-26 13:35:10 UTC
RE: [CAD_CAM_EDM_DRO] Re: blown Gecko - shorted output ?
turbulatordude <davemucha@j...
2003-02-26 14:01:43 UTC
Re: blown Gecko - shorted output ?
John Craddock
2003-02-26 14:41:55 UTC
RE: [CAD_CAM_EDM_DRO] Re: blown Gecko - shorted output ?
Jeff Goldberg
2003-02-26 15:03:42 UTC
RE: [CAD_CAM_EDM_DRO] Re: blown Gecko - shorted output ?
Jeff Goldberg
2003-02-26 15:12:47 UTC
RE: [CAD_CAM_EDM_DRO] Re: Important new question - was blown Gecko - shorted output ?
wanliker@a...
2003-02-26 16:19:10 UTC
Re: [CAD_CAM_EDM_DRO] Re: blown Gecko - shorted output ?
Michael
2003-02-26 17:05:56 UTC
RE: [CAD_CAM_EDM_DRO] Re: blown Gecko - shorted output ?
turbulatordude <davemucha@j...
2003-02-26 18:22:10 UTC
Re: blown Gecko - shorted output ?
Lee Studley <indigo_red@q...
2003-02-26 19:15:07 UTC
Re: blown Gecko - shorted output ?
turbulatordude <davemucha@j...
2003-02-26 20:49:49 UTC
Re: blown Gecko - shorted output ?
Raymond Heckert
2003-02-26 21:16:51 UTC
Re: [CAD_CAM_EDM_DRO] Re: blown Gecko - shorted output ?
Raymond Heckert
2003-02-26 21:16:56 UTC
Re: [CAD_CAM_EDM_DRO] Re: blown Gecko - shorted output ?
wanliker@a...
2003-02-26 21:25:41 UTC
Re: [CAD_CAM_EDM_DRO] Re: blown Gecko - shorted output ?
turbulatordude <davemucha@j...
2003-02-26 21:55:38 UTC
Re: blown Gecko - shorted output ?
resosys
2003-03-26 14:11:00 UTC
Re: blown Gecko - shorted output ?
James Cullins
2003-03-26 16:35:40 UTC
Re: [CAD_CAM_EDM_DRO] Re: blown Gecko - shorted output ?
turbulatordude
2003-03-26 20:03:32 UTC
Re: blown Gecko - shorted output ?