CAD CAM EDM DRO - Yahoo Group Archive

Re: G201-IP

Posted by Tony Jeffree
on 2002-11-23 22:02:41 UTC
Likewise, I would welcome the feature, but my personal priority would
be getting the G298 to market (with the IP feature as an option on
that too...?)

Regards,
Tony

--- In CAD_CAM_EDM_DRO@y..., "kdoney_63021" <kdoney_63021@y...> wrote:
> I would like the protection and be willing to pay for it in the
> future but I would rather have you concentrating on the new 4XX
> series.
>
> --- In CAD_CAM_EDM_DRO@y..., "mariss92705" <mariss92705@y...> wrote:
> > Hi,
> >
> > I have breadboarded a protection circuit for the G201. It
protects
> > against:
> >
> > 1) Shorting any or all motor wires to ground.
> > 2) Shorting any motor phase to phase.
> > 3) Miss-phased motors (series or parallel).
> > 4) Miss-connected motors.
> > 5) Internal motor winding shorts (serial-killer motors).
> > 6) Motor connects/disconnects while under power.
> > 7) Motor winding short to motor case.
> > 8) Unused 6-wire motor leads touching/shorting anywhere.
> >
> > These are the most common drive failure problems (>95%) that we
see
> > for return/repair.
> >
> > The circuit works internally on the "DISABLE" input (term. #7) of
> the
> > drive. Any of these faults would latch it low (disable). It would
> > then require a recycling of the power supply to clear the fault.
> > The "Fault" indication would be a "0" on the "DISABLE" terminal.
> >
> > The "IP" in G201-IP stands for "current protect", or as a cruel
> > individual here pointed out, it can also read "Idiot Protect".
> >
> > This circuit (about 20 additional components to the existing 136)
> > would require a major revision (REV-8). Of course it would be
100%
> > compatible, pinout, function and form, with all previous drives.
> >
> > What I am throwing out to the group here is:
> >
> > (1) Is it worth the effort to do this?
> > (2) Is it worth a $15 premium to do have this protection? That is
> the
> > all-up cost of the additional parts.
> >
> > We will continue to produce the G201 regardless if there is or is
> not
> > a G201-IP. It will not in any way supplant it.
> >
> > The G201-IP might be useful for those that are using the drive
for
> > the first time and want a little extra margin against Mr. Murphy
> and
> > his Law. Later, after everything has settled out, stock G201s
would
> > serve as well. Others that are a little more tense/prudent may
wish
> > to have it as protection against Mr. Murphy should he call
> uninvited
> > at a later time.
> >
> > If I'm going to do this, my schedule has it for the end of the
> first
> > quarter. What I'm looking for is feedback if this is
wanted/needed.
> >
> > Thanks.
> >
> > Mariss

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