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
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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