CAD CAM EDM DRO - Yahoo Group Archive

Re: G201-IP

Posted by mariss92705
on 2002-11-24 22:51:31 UTC
Jan,

This might be interesting to you. I personally test each and every
drive that goes out the door. The drives go thru 2 test sequences;
low stress and extreme stress. Low stress is at 24VDC on a fine Sanyo-
Denki 2A/phase motor. The supply is current limited to 1.5A. No
matter what is wrong with a bad drive, this setup does not harm it.
It has never killed a drive out of the 40,000 that have passed thru
this part.

Once a drive passes the 24VDC, 2A test, a switch is thrown that
changes everything. Now the test drive is hit with a 100VDC power
supply while connected to a 7A PacSci NEMA 42 motor. Here one out of
50 surviving drives tested smokes. Sometimes bigtime. The 100VDC
supply (a Sorensen 120VDC, 25A 19" rack-mount lab supply) literally
kills the failures. The dead ones never ship.

Mariss


--- In CAD_CAM_EDM_DRO@y..., JanRwl@A... wrote:
> Mariss:
>
> Knocking on wood, perhaps I should NOT enter my 2-bits' worth in
this regard:
>
>
> Generally, I have "never" blown a fuze nor a semiconductor of
value, as I use
> common sense (primarily the only kind I have, being
> academically-challenged!). So far, I have used only TWO G210's
(same as the
> G201 as far as this point goes, I think), in an application-
specific plotter
> I built for a customer in Ohio.
>
> Being basically a klutzy dolt, I had "tacked" stepper-wire-ends to
the
> terminals for a "try and see" run, and had stripped far more length
of
> insulation off the wire-ends than the space between these terminals
to which
> the motor was connected. Then, in my [deleted]ing around,
I "bumped into",
> thus cross-shorted two adjacent motor-wires (a "shorted winding").
This VERY
> fortunately ONLY blew the 1.5 A. fuze I was using in the "motor DC
line" from
> the power-supply, though it WAS a "dead short" to the Gecko drive!
Untoward
> utterances deleted, I fixed the temporary connections, put in a new
fuze, and
> tried again, HOPING I hadn't blown anything! The G210 was OK!
Whew! I was
> very pleased by the "toughness" of the drive, but I guess an up-to-
7-amp
> capability, with a current-set resistor for "1 amp load" installed,
I might
> expect that. But the "dead short" did have me worried
until "second test"!
> Whew!
>
> I will be using more G210's in the future (assuming I get orders
for more
> simple PC-controlled application-specific toys)!
>
> Jan Rowland, aging klutz
>
>
> [Non-text portions of this message have been removed]

Discussion Thread

mariss92705 2002-11-23 13:41:41 UTC G201-IP Jim Brown 2002-11-23 14:38:41 UTC Re: [CAD_CAM_EDM_DRO] G201-IP Keith Bowers 2002-11-23 14:47:54 UTC Re: [CAD_CAM_EDM_DRO] G201-IP mariss92705 2002-11-23 15:16:28 UTC Re: G201-IP Kory Hamzeh 2002-11-23 15:34:13 UTC RE: [CAD_CAM_EDM_DRO] G201-IP James Cullins 2002-11-23 16:10:41 UTC Re: [CAD_CAM_EDM_DRO] G201-IP turbulatordude 2002-11-23 16:39:34 UTC Re: G201-IP Ron Kline 2002-11-23 18:55:17 UTC Re: [CAD_CAM_EDM_DRO] G201-IP Peter 2002-11-23 19:15:50 UTC Re: [CAD_CAM_EDM_DRO] G201-IP kdoney_63021 2002-11-23 20:14:53 UTC Re: G201-IP Tony Jeffree 2002-11-23 22:02:41 UTC Re: G201-IP deanc500 2002-11-23 23:24:17 UTC Re: G201-IP galt1x 2002-11-24 03:25:56 UTC Re: [CAD_CAM_EDM_DRO] G201-IP Thomas E. Jones 2002-11-24 10:00:20 UTC Re: G201-IP JanRwl@A... 2002-11-24 12:37:38 UTC Re: [CAD_CAM_EDM_DRO] G201-IP JanRwl@A... 2002-11-24 12:46:18 UTC Re: [CAD_CAM_EDM_DRO] Re: G201-IP John Johnson 2002-11-24 13:50:16 UTC Re: [CAD_CAM_EDM_DRO] Re: G201-IP Carol & Jerry Jankura 2002-11-24 14:43:10 UTC RE: [CAD_CAM_EDM_DRO] Re: G201-IP turbulatordude 2002-11-24 20:01:56 UTC Re: G201-IP turbulatordude 2002-11-24 20:03:58 UTC Re: G201-IP turbulatordude 2002-11-24 20:06:17 UTC Re: G201-IP mariss92705 2002-11-24 22:51:31 UTC Re: G201-IP jmkasunich 2002-11-25 06:39:20 UTC Re: G201-IP jmkasunich 2002-11-25 07:02:22 UTC Re: G201-IP n4onl 2002-11-25 08:02:51 UTC Re: G201-IP pt_green 2002-11-25 21:58:41 UTC Re: G201-IP mayfieldtm 2002-11-26 12:58:24 UTC Re: G201-IP mariss92705 2002-11-26 17:46:31 UTC Re: G201-IP Marv Frankel 2002-11-26 18:21:28 UTC Re: [CAD_CAM_EDM_DRO] Re: G201-IP Jon Elson 2002-11-26 23:42:17 UTC Re: [CAD_CAM_EDM_DRO] Re: G201-IP Nicolas Benezan 2002-11-27 02:39:42 UTC Re: [CAD_CAM_EDM_DRO] G201-IP