On Thursday 10 December 2015 13:52:42 Mark Johnsen wrote:
> I'm sure I have noise in my setup.
>
> Here's a picture of my cabinet, which I actually took time to route
> wires decently.
> https://goo.gl/photos/AogjAzWHpGGysceQA
>
That at first glance looks pretty decent, but I lost any resemblance to
sharp when I tried to blow it up enough to see it. It was only about
2x3" on my screen.
> I did my best to keep things separated, but there was only so much
> room. I think my AutoDirect GS2 3HP vfd is probably too close to the
> 7i77, Also, the 80Vdc coming from the step down transformer and
> rectifier would add to the noise. Oh, to power the VFD I brought into
> an originally 120Vac 'only' cabinet 240 single phase plus the noisy
> 3-phase motor output.
>
> I did go back and look at my notes and 2x I did get errors in 2.6.xx
> that I ignored. I typed the errors here from a screen shot (forgive
> my typing errors):
> hm2/hm2_5i25.0: Smart Serial Error: port 0 channel 0. you may see
> this error if the FPGA card read thread is not running. This error
> message will not repeat.
>
> hm/hm2_5i25.0: Smart serial card hm2_5i25.0.7i77.0.0o error = (13)
> Communication error
>
> hm/hm2_5i25.0: Smart serial card hm2_5i25.0.7i77.0.0o error = (4)
> Extra character
>
> hm/hm2_5i25.0: Smart serial card hm2_5i25.0.7i77.0.0o error = (3)
> Timeout ----------------END ERRORS-----------------------------
>
> I only saw those errors 2x and I'm going to guess that it was after I
> upgraded the 7i77 firmware...
> I think I was lulled into thinking the noise was OK.
>
> After that, I must have fiddled w/ the power supplies and haven't seen
> those errors lately.
>
> Anyway, chasing the noise is a frustrating tail chasing exercise (for
> me it seems). I'd like to pretend it doesn't exist and stick my head
> in the sand...
>
> Mark
>
> > On Tue, 8 Dec 2015, Todd Zuercher wrote:
> > > Date: Tue, 8 Dec 2015 21:29:34 -0500 (EST)
> > > From: Todd Zuercher <zuerc...@embarqmail.com>
> > > Reply-To: "Enhanced Machine Controller (EMC)"
> > > <emc-users@lists.sourceforge.net>
> > > To: "Enhanced Machine Controller (EMC)"
> > > <emc-users@lists.sourceforge.net
> > >
> > > Subject: Re: [Emc-users] linuxcnc 2.7.3 - mesa 7i77 update
> > >
> > > It was a while ago that I upgraded things. So I can't say for sure
> > > what
> >
> > the
> >
> > > order of events were. But I was running 2.7pre on this machine as
> > > soon
> >
> > as
> >
> > > it came out and I know I did not update the firmwares right away,
> > > and ran for a while just ignoring the notice to update them. I
> > > don't think
> >
> > during
> >
> > > that time I had the problem with the smart serial errors until
> > > after I updated the firmwares, also about that same time I changed
> > > my config to
> >
> > run
> >
> > > at a higher rate, moving the hm2 read/rights and velocity loop for
> > > the servos to a floating point base thread. I've been blaming the
> > > ss communication problems on the base thread speed being
> > > borderline too
> >
> > fast.
> >
> > > So for me the real question is what is the source of the problem,
> > > is it
> >
> > that
> >
> > > something in 2.7 is more sensitive to errors than before, is
> > > something in the new firmware making it more sensitive, something
> > > in 2.7 or the
> >
> > firmware
> >
> > > causing more errors than before, or is it my thread speed. I don't
> > > want
> >
> > to
> >
> > > blame electronic interference because it worked before for years
> > > and
> >
> > none of
> >
> > > that changed. But in a way that probably is the real source,
> > > because it
> >
> > is
> >
> > > when powering on the machine(F2) after an e-stop when I most often
> > > see
> >
> > this
> >
> > > error (about half the time). I'll check into these parameters and
> > > see
> >
> > if I
> >
> > > can tame it down to acceptable level.
> >
> > A extra character error is definately electrical noise related, it
> > may have been unreported by 2.6 though
> >
> > > ----- Original Message -----
> > > From: "andy pugh" <bodge...@gmail.com>
> > > To: "Enhanced Machine Controller (EMC)"
> > > <emc-users@lists.sourceforge.net
> > >
> > > Sent: Tuesday, December 8, 2015 8:44:11 PM
> > > Subject: Re: [Emc-users] linuxcnc 2.7.3 - mesa 7i77 update
> > >
> > > On 9 December 2015 at 01:21, Stephen Dubovsky
> > > <smdubov...@gmail.com>
> >
> > wrote:
> > >> How to set dec? And what was it in prior versions?
> > >
> > > You set it like any other HAL parameter. Details are there if you
> > > look at man sserial
> > >
> > > setp hm2_5i24.0.sserial.port-N.fault-inc 0
> > >
> > > Will disable all smart-serial fault reporting.
> > >
> > > Naturally you will have to use parameters that actually exist in
> > > your configuration.
> > >
> > > The values haven't changed, but something else has, I am not sure
> > > what.
> > >
> > > --
> >
> > Peter Wallace
> > Mesa Electronics
> >
> > (\__/)
> > (='.'=) This is Bunny. Copy and paste bunny into your
> > (")_(") signature to help him gain world domination.
>
> ----------------------------------------------------------------------
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Cheers, Gene Heskett
--
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Some mill pix are at:
Genes Web page <http://geneslinuxbox.net:6309/gene/GO704-pix>
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