On Wed, 1 Nov 2017, Eric H. Johnson wrote:
Date: Wed, 1 Nov 2017 19:25:36 -0400
From: Eric H. Johnson
Reply-To: "Enhanced Machine Controller (EMC)"
To: "'Enhanced Machine Controller (EMC)'"
Subject: [Emc-users] Odd encoder problem
All,
A machine (table) that has been running for about
Once have I a connection where only fast signal worked. In turned out the
signals were coupled with a capacitor that was to small to pass low
frequency. Of course no capacitor was designed into the system but a
loose solder joint was acting like a capacitor. Actually what else is a
cap, but two
On Wednesday 01 November 2017 20:14:07 andy pugh wrote:
> On 1 November 2017 at 23:25, Eric H. Johnson
wrote:
> > The problem is in the A axis. It seems to be
> > losing encoder counts at very low speed, but not otherwise. It took
> > a bit to track down because when I initially had it moving mu
On Wednesday 01 November 2017 12:30:20 andy pugh wrote:
> On 1 November 2017 at 15:53, Gene Heskett wrote:
> > Now I have additional switches to make work to control it, in
> > particular I'll use 2 switches and 2 mux2's in the end so that motor
> > commands are blocked if the knob is not properl
Andy,
That sounds plausible, I will check at the next opportunity.
Thanks,
Eric
On November 1, 2017 8:14:07 PM EDT, andy pugh wrote:
>On 1 November 2017 at 23:25, Eric H. Johnson
>wrote:
>
>> The problem is in the A axis. It seems to be
>> losing encoder counts at very low speed, but not othe
On 1 November 2017 at 23:25, Eric H. Johnson wrote:
> The problem is in the A axis. It seems to be
> losing encoder counts at very low speed, but not otherwise. It took a bit to
> track down because when I initially had it moving multiple rotations I could
> not get any errors running A by itself
Gregg,
I did that, well mostly. I rechecked and tightened every encoder connector,
although not necessarily disconnecting and reconnecting.
The housing for the line drivers rides in the gantry, so is in motion. Those
were the first connectors I checked.
I can do a more thorough job, but saw no
Basics first. Disconnect power, unplug and re-connect all plugs, loosen and
tighten all screw terminals. Re-test. Eliminates any minor corrosion or
possible looseness causing an intermittent.
On Wednesday, November 1, 2017, 5:47:05 PM MDT, Eric H. Johnson
wrote:
All,
A machine (t
All,
A machine (table) that has been running for about three months has developed
an odd problem in the last couple weeks. Not sure if it has been getting
worse or if just the nature of the patterns being run has made the problem
more pronounced. The machine is an XYYA configuration with a pneu
On 1 November 2017 at 15:53, Gene Heskett wrote:
> Now I have additional switches to make work to control it, in
> particular I'll use 2 switches and 2 mux2's in the end so that motor
> commands are blocked if the knob is not properly homed in one position
> or the other.
I would suggest a singl
On Tue, Oct 31, 2017 at 7:58 PM, Gene Heskett wrote:
> On Tuesday 31 October 2017 21:20:22 Chris Albertson wrote:
>
> > Can you convert the gear position to a number, either 1.0 or 0.0
> >
> Thats easy enough.
>
> > Now you one need one PID, no MUX. Multiple each parameter but ehvalue
> > of the
On Wednesday 01 November 2017 06:30:08 andy pugh wrote:
> On 1 November 2017 at 02:34, Gene Heskett wrote:
> >> bit FALSE spindle-index-enable
> >> <=> motion.spindle-index-enable
> >> ==> pid.0.index-enable
> >>
Infineon XMC4300 have builtin Ethercat peripheral but it require two
external drivers, two sets of MII pins and extra cost is roughly the same
as using external chip.
2017-10-31 22:27 GMT+01:00 Chris Albertson :
> Yes oddly enough it's a significanly cheaper product made from
> > significanlty mo
On 1 November 2017 at 02:34, Gene Heskett wrote:
>> bit FALSE spindle-index-enable
>> <=> motion.spindle-index-enable
>> ==> pid.0.index-enable
>> ==> pid.1.index-enable
>> <=> sim_spind
14 matches
Mail list logo
