Re: [Emc-users] MESA 7i92H Power

[John Dammeyer]

Thanks.  Very useful link.
John


> -Original Message-
> From: Ken Strauss [mailto:ken.stra...@gmail.com]
> Sent: September-09-19 8:23 AM
> To: 'Enhanced Machine Controller (EMC)'
> Subject: Re: [Emc-users] MESA 7i92H Power
> 
> Or power the BoB from the 7i92. See
> https://www.cnczone.com/forums/tormach-pathpilot-/354420-tormach-
> software.html
>  for another user's approach.
> 
> > -Original Message-
> > From: John Dammeyer [mailto:jo...@autoartisans.com]
> > Sent: Monday, September 09, 2019 11:16 AM
> > To: 'Enhanced Machine Controller (EMC)'
> > Subject: Re: [Emc-users] MESA 7i92H Power
> >
> > Thanks.  At the moment I'm running it from a small AC to 5V adaptor but
> that's
> > one more thing plugged into AC power. I do have a 5V output from the BoB
> that
> > I can use.  Just have to wire it into the 7i92H.
> > John
> >
> >
> > > -Original Message-
> > > From: Les Newell [mailto:les.new...@fastmail.co.uk]
> > > Sent: September-09-19 3:52 AM
> > > To: emc-users@lists.sourceforge.net
> > > Subject: Re: [Emc-users] MESA 7i92H Power
> > >
> > > Yes you can run it using a supply derived from 24V. In my opinion it is
> > > better that way as it keeps the computer isolated from the potentially
> > > noisy system ground.
> > >
> > > Les
> > >
> > > On 09/09/2019 04:30, John Dammeyer wrote:
> > > > Quick question.  Running signals from the parallel port to the BoB
> > > definitely couples the PC Ground into the Bob.  Generally then the BoB
> > > optically isolates the PC signals from the rest of the system  Or
> expects the
> > > motor driver to do it.  And for the rest the BoB is supplied with an
> isolated
> > > supply that is not connected to the PC side.
> > > >
> > > > Since Ethernet runs the 7i92H and it comes from the PC does the 5V
> power
> > > into the 7i92H have to have the 5V DC Ground common with the PC DC
> > > ground?  Or can the 5V be derived from a 24V power supply whose
> ground
> is
> > > not common with the PC ground because there's no direct connection.  I
> > > recall something about PCs using transformers inside the RJ-45 Ethernet
> > > connector but I don't remember for sure.
> > > >
> > > > John
> > > >
> > >
> > >
> > >
> > > ___
> > > Emc-users mailing list
> > > Emc-users@lists.sourceforge.net
> > > https://lists.sourceforge.net/lists/listinfo/emc-users
> >
> >
> >
> > ___
> > Emc-users mailing list
> > Emc-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/emc-users
> 
> 
> 
> 
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users



___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Step timing and max velocity

[Peter C. Wallace]

On Mon, 9 Sep 2019, andrew beck wrote:


Date: Mon, 9 Sep 2019 21:38:49 +1200
From: andrew beck 
Reply-To: "Enhanced Machine Controller (EMC)"

To: "Enhanced Machine Controller (EMC)" 
Subject: Re: [Emc-users] Step timing and max velocity

Hey  Andypugh and PCW.
PCW

I will attach my Ini files tomorrow when I get back to the shed again.  But
I think FF1 was equal to "1"  But you guys really need to see my ini file
before we go any
further.  But I know it wasn't 0.0005.  I am pretty sure it was 1.  and the
Min ferror I originally set up in Pncconf as .02 but then changed it to
0.20mm later on after I kept getting all these errors.  When using the
setting up the tuning in Pncconf the table was actually back driving
itself.  I would move the machine one direction and it would move and then
turning around and try to come most of the way back to its start position.
as you will see from the first video if you watch it.

Apart from that I will check these other values and see what I have and I
will post the Ini file here for you guys to check.

once again thanks for the help guys.

Regards

Andrew


Note: The pid_maxerror setting is in the hal file, not the ini file
removing all pid_maxerror settings from the hal file will
very likely resolve your issue. In addition, as mentioned
all P terms should be set to 1000
(assuming you are using a 1ms = 100 ns servo thread rate)


Peter Wallace
Mesa Electronics

(\__/)
(='.'=) This is Bunny. Copy and paste bunny into your
(")_(") signature to help him gain world domination.



___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] MESA 7i92H Power

[Ken Strauss]

Or power the BoB from the 7i92. See
https://www.cnczone.com/forums/tormach-pathpilot-/354420-tormach-software.ht
ml for another user's approach.

> -Original Message-
> From: John Dammeyer [mailto:jo...@autoartisans.com]
> Sent: Monday, September 09, 2019 11:16 AM
> To: 'Enhanced Machine Controller (EMC)'
> Subject: Re: [Emc-users] MESA 7i92H Power
>
> Thanks.  At the moment I'm running it from a small AC to 5V adaptor but
that's
> one more thing plugged into AC power. I do have a 5V output from the BoB
that
> I can use.  Just have to wire it into the 7i92H.
> John
>
>
> > -Original Message-
> > From: Les Newell [mailto:les.new...@fastmail.co.uk]
> > Sent: September-09-19 3:52 AM
> > To: emc-users@lists.sourceforge.net
> > Subject: Re: [Emc-users] MESA 7i92H Power
> >
> > Yes you can run it using a supply derived from 24V. In my opinion it is
> > better that way as it keeps the computer isolated from the potentially
> > noisy system ground.
> >
> > Les
> >
> > On 09/09/2019 04:30, John Dammeyer wrote:
> > > Quick question.  Running signals from the parallel port to the BoB
> > definitely couples the PC Ground into the Bob.  Generally then the BoB
> > optically isolates the PC signals from the rest of the system  Or
expects the
> > motor driver to do it.  And for the rest the BoB is supplied with an
isolated
> > supply that is not connected to the PC side.
> > >
> > > Since Ethernet runs the 7i92H and it comes from the PC does the 5V
power
> > into the 7i92H have to have the 5V DC Ground common with the PC DC
> > ground?  Or can the 5V be derived from a 24V power supply whose ground
is
> > not common with the PC ground because there's no direct connection.  I
> > recall something about PCs using transformers inside the RJ-45 Ethernet
> > connector but I don't remember for sure.
> > >
> > > John
> > >
> >
> >
> >
> > ___
> > Emc-users mailing list
> > Emc-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/emc-users
>
>
>
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users




___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] MESA 7i92H Power

[John Dammeyer]

Thanks.  At the moment I'm running it from a small AC to 5V adaptor but that's 
one more thing plugged into AC power. I do have a 5V output from the BoB that I 
can use.  Just have to wire it into the 7i92H.  
John


> -Original Message-
> From: Les Newell [mailto:les.new...@fastmail.co.uk]
> Sent: September-09-19 3:52 AM
> To: emc-users@lists.sourceforge.net
> Subject: Re: [Emc-users] MESA 7i92H Power
> 
> Yes you can run it using a supply derived from 24V. In my opinion it is
> better that way as it keeps the computer isolated from the potentially
> noisy system ground.
> 
> Les
> 
> On 09/09/2019 04:30, John Dammeyer wrote:
> > Quick question.  Running signals from the parallel port to the BoB
> definitely couples the PC Ground into the Bob.  Generally then the BoB
> optically isolates the PC signals from the rest of the system  Or expects the
> motor driver to do it.  And for the rest the BoB is supplied with an isolated
> supply that is not connected to the PC side.
> >
> > Since Ethernet runs the 7i92H and it comes from the PC does the 5V power
> into the 7i92H have to have the 5V DC Ground common with the PC DC
> ground?  Or can the 5V be derived from a 24V power supply whose ground is
> not common with the PC ground because there's no direct connection.  I
> recall something about PCs using transformers inside the RJ-45 Ethernet
> connector but I don't remember for sure.
> >
> > John
> >
> 
> 
> 
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users



___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] MESA 7i92H Power

[Les Newell]

Yes you can run it using a supply derived from 24V. In my opinion it is 
better that way as it keeps the computer isolated from the potentially 
noisy system ground.


Les

On 09/09/2019 04:30, John Dammeyer wrote:

Quick question.  Running signals from the parallel port to the BoB definitely 
couples the PC Ground into the Bob.  Generally then the BoB optically isolates 
the PC signals from the rest of the system  Or expects the motor driver to do 
it.  And for the rest the BoB is supplied with an isolated supply that is not 
connected to the PC side.

Since Ethernet runs the 7i92H and it comes from the PC does the 5V power into 
the 7i92H have to have the 5V DC Ground common with the PC DC ground?  Or can 
the 5V be derived from a 24V power supply whose ground is not common with the 
PC ground because there's no direct connection.  I recall something about PCs 
using transformers inside the RJ-45 Ethernet connector but I don't remember for 
sure.

John





___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Step timing and max velocity

[andrew beck]

Just out of interest.

Does anyone know what is happening with the probe basic gui screen that has
being developed currently?  It looks really cool and I would love to use
it/ maybe modify it if needed.   The Gui is the biggest problem with
linuxcnc I think. the Axis screen looks like it comes out of the 1950s
now.  I think the original designer did a awesome job to have it still used
to this day! but it is about time for a new look.  and I have not seen any
G screens that I really like so far.  Open to suggestions though of course.

regards

Andrew


Virus-free.
www.avast.com

<#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>

On Mon, Sep 9, 2019 at 9:38 PM andrew beck  wrote:

> Hey  Andypugh and PCW.
>
> I will post another reply tomorrow but here is a email without any of  the
> real usefull info like ini files..  But I have added two videos here that
> show the issue and then what seems to be the solution after I increased the
> P value from 50 to 500.
>
> https://www.youtube.com/watch?v=ktnbOf2Kj4o
>
> video of errors gone on the machine
> 
>
> Andypugh it was a Joint following error that was coming up on the Axis
> screen as a error and throws the E stop.  I ended up increasing the P value
> in the INI file for each axis for the stepgen PID from 50 to 500 and the
> error seems to have gone away.  I have also increased the Min ferror to
> 0.20 mm.  Do you know what that will actually mean in actual machine use?
> eg will that affect my accuracy?   That was after a whole bunch of stuffing
> around for hrs trying different values all over the place.
>
> But that may be the wrong way to do it...
>
> This video is 3 mins long so feel free to skip through it.  I will try
> make a better video later on.
>
> video of errors gone on the machine
> 
>
> Second question:
>
> "What is PID.n.maxerror set to?
> Is your FF1 correct? In a cruise, using halscope, you should see the
> velocity command and the actual velocity pretty much equal."
> I don't know if FF1 is correct.  I have just left it as the default from
> Pncconf which is 1  And I haven't tried to view it in the Halscope.
> I will have a look later this week.
>
> PCW
>
> I will attach my Ini files tomorrow when I get back to the shed again.
> But I think FF1 was equal to "1"  But you guys really need to see my ini
> file before we go any
> further.  But I know it wasn't 0.0005.  I am pretty sure it was 1.  and
> the Min ferror I originally set up in Pncconf as .02 but then changed it to
> 0.20mm later on after I kept getting all these errors.  When using the
> setting up the tuning in Pncconf the table was actually back driving
> itself.  I would move the machine one direction and it would move and then
> turning around and try to come most of the way back to its start position.
> as you will see from the first video if you watch it.
>
> Apart from that I will check these other values and see what I have and I
> will post the Ini file here for you guys to check.
>
> once again thanks for the help guys.
>
> Regards
>
> Andrew
>
>
>
>
>
>
>
>
>
> 
>  Virus-free.
> www.avast.com
> 
> <#m_-1359731774385570188_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
>
> On Sun, Sep 8, 2019 at 9:54 PM andy pugh  wrote:
>
>> On Sun, 8 Sep 2019 at 04:41, andrew beck 
>> wrote:
>>
>> I can move the table at max speed but the Stepgen PID errors out.
>>
>>
>> Can you elaborate on this?
>> PID has no error messages, as far as I know. So what is the actual error?
>>
>> What is PID.n.maxerror set to?
>> Is your FF1 correct? In a cruise, using halscope, you should see the
>> velocity command and the actual velocity pretty much equal.
>>
>> --
>> atp
>> "A motorcycle is a bicycle with a pandemonium attachment and is designed
>> for the especial use of mechanical geniuses, daredevils and lunatics."
>> — George Fitch, Atlanta Constitution Newspaper, 1916
>>
>> ___
>> Emc-users mailing list
>> Emc-users@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/emc-users
>>
>

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Step timing and max velocity

[andrew beck]

Hey  Andypugh and PCW.

I will post another reply tomorrow but here is a email without any of  the
real usefull info like ini files..  But I have added two videos here that
show the issue and then what seems to be the solution after I increased the
P value from 50 to 500.

https://www.youtube.com/watch?v=ktnbOf2Kj4o

video of errors gone on the machine


Andypugh it was a Joint following error that was coming up on the Axis
screen as a error and throws the E stop.  I ended up increasing the P value
in the INI file for each axis for the stepgen PID from 50 to 500 and the
error seems to have gone away.  I have also increased the Min ferror to
0.20 mm.  Do you know what that will actually mean in actual machine use?
eg will that affect my accuracy?   That was after a whole bunch of stuffing
around for hrs trying different values all over the place.

But that may be the wrong way to do it...

This video is 3 mins long so feel free to skip through it.  I will try make
a better video later on.

video of errors gone on the machine


Second question:

"What is PID.n.maxerror set to?
Is your FF1 correct? In a cruise, using halscope, you should see the
velocity command and the actual velocity pretty much equal."
I don't know if FF1 is correct.  I have just left it as the default from
Pncconf which is 1  And I haven't tried to view it in the Halscope.
I will have a look later this week.

PCW

I will attach my Ini files tomorrow when I get back to the shed again.  But
I think FF1 was equal to "1"  But you guys really need to see my ini file
before we go any
further.  But I know it wasn't 0.0005.  I am pretty sure it was 1.  and the
Min ferror I originally set up in Pncconf as .02 but then changed it to
0.20mm later on after I kept getting all these errors.  When using the
setting up the tuning in Pncconf the table was actually back driving
itself.  I would move the machine one direction and it would move and then
turning around and try to come most of the way back to its start position.
as you will see from the first video if you watch it.

Apart from that I will check these other values and see what I have and I
will post the Ini file here for you guys to check.

once again thanks for the help guys.

Regards

Andrew









Virus-free.
www.avast.com

<#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>

On Sun, Sep 8, 2019 at 9:54 PM andy pugh  wrote:

> On Sun, 8 Sep 2019 at 04:41, andrew beck  wrote:
>
> I can move the table at max speed but the Stepgen PID errors out.
>
>
> Can you elaborate on this?
> PID has no error messages, as far as I know. So what is the actual error?
>
> What is PID.n.maxerror set to?
> Is your FF1 correct? In a cruise, using halscope, you should see the
> velocity command and the actual velocity pretty much equal.
>
> --
> atp
> "A motorcycle is a bicycle with a pandemonium attachment and is designed
> for the especial use of mechanical geniuses, daredevils and lunatics."
> — George Fitch, Atlanta Constitution Newspaper, 1916
>
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users
>

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users