: [Emc-users] joint 0 following error
To: Enhanced Machine Controller (EMC)
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Do you use shielded cables for your encoders? I know
Hi Group!
I´m using EMC 2.4~pre and I want to tune the PID for my Servo-System for
only one linear Axis. The case is, when I drive with high speed and dynamic
periodic movements it works. In slower movements and in the situation of no
motion e.g. after I put the machine on, the error occurs,
Do you use shielded cables for your encoders? I know that the same error
appeared on two different machines when the cables were unshielded. One got
it when running a servosystem and the other was a stepper machine that got
it when homing (unshielded home switch cables).
Regards,
Sven
2009/7/29
Also consider using differential en/de-coders on each side to
eliminate the influence noise.
It's fairly easy to add those little chips if the signal is not
differential already.
Rainer
On Jul 29, 2009, at 5:42 AM, Sven Wesley wrote:
Do you use shielded cables for your encoders? I know that
What he failed to mention in the original post is that this is an
absolute encoder, running with a high end interface card and a driver he
wrote :)
In an IRC discussion, we found that the feedback has a glitch in it from
time to time, to the tune of a few meters apparent motion (in a
Oh, those small facts... :)
2009/7/29 Stephen Wille Padnos spad...@sover.net
What he failed to mention in the original post is that this is an
absolute encoder, running with a high end interface card and a driver he
wrote :)
Gene Heskett wrote:
On Monday 24 November 2008, Andrew Ayre wrote:
Gene Heskett wrote:
On Saturday 22 November 2008, Andrew Ayre wrote:
Gene Heskett wrote:
30 IPM is an arbitrary value that I picked that I didn't feel
comfortable going above. If I knew I could run it faster I would, but
I'm
On Monday 24 November 2008, Andrew Ayre wrote:
Gene Heskett wrote:
On Monday 24 November 2008, Andrew Ayre wrote:
Gene Heskett wrote:
On Saturday 22 November 2008, Andrew Ayre wrote:
Gene Heskett wrote:
30 IPM is an arbitrary value that I picked that I didn't feel
comfortable going above. If
Gene Heskett wrote:
On Monday 24 November 2008, Andrew Ayre wrote:
Gene Heskett wrote:
There is, and I forgotten the name, a german maker of such goodies that is
very highly thought of, maybe someone will chime in with more details. I
believe its about the same diameter as the dremel, but an
Head weight is the preload? Not always realistic when pushing on a drill
bit
to bore a hole. The hole won't be quite as deep as you told emc to do in
that case.
Sorry, I don't know what head weight is the preload means. I'm still
very new to this and I'm sure I'm doing a
On Monday 24 November 2008, Andrew Ayre wrote:
Gene Heskett wrote:
On Saturday 22 November 2008, Andrew Ayre wrote:
Gene Heskett wrote:
On Saturday 22 November 2008, Andrew Ayre wrote:
Jon Elson wrote:
Andrew Ayre wrote:
Hi, I've been happily generating g-code files and cutting them with
Jon Elson wrote:
Andrew Ayre wrote:
Hi, I've been happily generating g-code files and cutting them with
AXIS. I'm using EMC2 pre-2.2 CVS HEAD. Yes, I know it's old but I have
everything working and I am reluctant to change it right now as I am
trying to get Christmas gifts made as quickly
Andrew Ayre wrote:
Jon Elson wrote:
Andrew Ayre wrote:
Hi, I've been happily generating g-code files and cutting them with
AXIS. I'm using EMC2 pre-2.2 CVS HEAD. Yes, I know it's old but I have
everything working and I am reluctant to change it right now as I am
trying to get
Jon Elson wrote:
It is what your G-code is commanding, with the G0 moves. Prove it to
yourself by editing the G-code file to change all G0 to G1 and run again.
But, the proper fix is to give you some headroom. In your .ini file,
change MAX_VELOCITY in both the [TRAJ] section and in each
On Saturday 22 November 2008, Andrew Ayre wrote:
Jon Elson wrote:
Andrew Ayre wrote:
Hi, I've been happily generating g-code files and cutting them with
AXIS. I'm using EMC2 pre-2.2 CVS HEAD. Yes, I know it's old but I have
everything working and I am reluctant to change it right now as I am
Gene Heskett wrote:
On Saturday 22 November 2008, Andrew Ayre wrote:
Jon Elson wrote:
Andrew Ayre wrote:
Hi, I've been happily generating g-code files and cutting them with
AXIS. I'm using EMC2 pre-2.2 CVS HEAD. Yes, I know it's old but I have
everything working and I am reluctant to change
On Saturday 22 November 2008, Andrew Ayre wrote:
Gene Heskett wrote:
On Saturday 22 November 2008, Andrew Ayre wrote:
Jon Elson wrote:
Andrew Ayre wrote:
Hi, I've been happily generating g-code files and cutting them with
AXIS. I'm using EMC2 pre-2.2 CVS HEAD. Yes, I know it's old but I have
Hi, I've been happily generating g-code files and cutting them with
AXIS. I'm using EMC2 pre-2.2 CVS HEAD. Yes, I know it's old but I have
everything working and I am reluctant to change it right now as I am
trying to get Christmas gifts made as quickly as possible.
With a new g-code file I
Andrew Ayre wrote:
Hi, I've been happily generating g-code files and cutting them with
AXIS. I'm using EMC2 pre-2.2 CVS HEAD. Yes, I know it's old but I have
everything working and I am reluctant to change it right now as I am
trying to get Christmas gifts made as quickly as possible.
What is 'joint 0 following error' mean?
I used freqgen to drive my DC servo motor when this error happen.
Which is better, pwmgen, freqgen or stepgen, to drive DC servo motor?
Thanks,
Budi
_
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On Tue, Apr 17, 2007 at 04:32:04PM +0700, Dominikus Budiwibowo wrote:
What is 'joint 0 following error' mean?
I used freqgen to drive my DC servo motor when this error happen.
It means the difference between the commanded position and feedback
position differ by more than the allowed following
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