[Emc-users] Hight Frequency VFD

[Roland Jollivet]

> The drive had been acting up for the past couple months.  When the machine
> would be first powered on (throwing disconnect) the drive would not "turn
> on" right away "Power" LED on the front of the drive would not light up,
> even though the drive had power on all 3 phases.  If the machine was left
> turned on for an extended period of time (a half hour or maybe more)
> eventually the drive would power up and work correctly.  This drive has no
> display other than a row of 5 LEDs for fault and power indication.  None of
> the alarm indicators have ever have shown anything.  Last week it stopped
> working completely.  We are of the opinion the problem probably likes in
> the low voltage board and won't be easily found.
>
> Todd Zuercher
> P. Graham Dunn Inc.
> 630 Henry Street
> Dalton, Ohio 44618
> Phone:  (330)828-2105ext. 2031
>

My guess is that it's a joint issue on the power side. Thermal cycling
causes the solder joints on power devices to eventually break contact. Once
the board warms up, contact is made again. (or vice versa)

As a start. I would open the drive and re-solder all the power devices, and
power connectors. I've done this often in the past that's saved a device.
(be careful to let the HV caps discharge over a few hours before opening.
There is normally a bleed resistor)

If there was a fault in the signal side, it wouldn't 'recover' as it did.

Roland

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Re: [Emc-users] Hight Frequency VFD

[andrew beck]

The China option costs 200 bucks and just works too. Though yaskawa is
great!

Actually for anyone that's interested I get all my servo motors and vfds
from a company in China yuhai. (Yaskawa copy)

I have been dealing with Bill their sales man for 5 years and must have
bought about 30 servo motor sets now.   Plus sent lots of people his way.

They have never let me don't yet.

I trust him enough now to just let him go for it and he gets me anything I
want.   Powersupplies cable etc.

23 bit absolute encoders cost a extra 24usd lol.   You can output
incremental pulses to Linuxcnc and send like 10ppr which makes for a
very tight servo loop.

And like you can get inductive encoders that can handle 24000rpm to.

Anyway with all the China lockdowns atm I'm thinking that option may run
out soon so time to stock up.




On Tue, 10 May 2022, 09:03 Scott Harwell via Emc-users, <
emc-users@lists.sourceforge.net> wrote:

>  Todd,
> Yaskawa drives just don't brake. If I remember correctly, the V1000 has
> been around for quite some time.
>
> https://www.cncpd.com/product/cimr-vu4a0038faa-yaskawa-v1000-drive/
> Scott
>
>
> On Monday, May 9, 2022, 01:57:43 PM CDT, Todd Zuercher <
> to...@pgrahamdunn.com> wrote:
>
>  No, for some reason I hadn't checked with Siemens.  One of our machines
> even has a Siemens drive, but it's a gigantic thing that would never fit
> this machine's cabinet.  I'll look into it.
>
> We did order a Yaskawa drive, and are waiting on it to come in, figuring
> that if we get in a bind and can't wait for it we can knuckle under and pay
> the machine manufacture their price for one they have in stock, and keep
> the other as a spare.  But for the time being we are slow enough we can
> make do without that machine and can wait for the one we ordered.
>
> Todd Zuercher
> P. Graham Dunn Inc.
> 630 Henry Street
> Dalton, Ohio 44618
> Phone:  (330)828-2105ext. 2031
>
> -Original Message-
> From: Dave Cole 
> Sent: Monday, May 09, 2022 1:56 PM
> To: Enhanced Machine Controller (EMC) 
> Subject: Re: [Emc-users] Hight Frequency VFD
>
> [EXTERNAL EMAIL] Be sure links are safe.
>
> Have you checked to see if Siemens can help you?
> In order to go that fast they will sell you a license to install in a more
> or less standard drive.
> I understand that high freq drives can be used for other things, like gas
> centrifuges.
> So they try to keep track of where they go.
>
> Dave
>
> On Tue, Apr 26, 2022 at 11:42 AM Todd Zuercher 
> wrote:
>
> > Anyone know a good place to purchase a high frequency VFD?  We had the
> > drive in one of our CNCs die.  The old drive was a HSD DS15000.  The
> > spindle is an 18kw 24000rpm 4pole HSD router motor.  The old drive is
> > rated for 1-1000hz and that seems to be the problem, all of the off
> > the shelf drives I can find are limited to output frequencies less
> > than 500hz which would limit our spindles top speed to only 15000rmp.
> > Our machine builder quoted us for a Yaskawa V1000 drive with 1000hz
> > firmware (model#
> > VU4A0038FAA-134) that they do have in stock but they are marking up
> > their price to more than double the normal list price for that drive.
> > Every other place I've checked with so far are quoting us months long
> > lead times for that drive.
> >
> > I don't have to have a Yaskawa drive, I think I'd be ok with any drive
> > capable of 15kw and at least 800hz output.  (Oh, it would be nice if
> > it would fit in the cabinet where the old one did, have about 9inches
> > x 15inches  of space there.)
> >
> > Anyone have any suggestions for a good source for "obtainable" drive
> > that would fit the bill?  For example we have a machine with a Fuji
> > Frenic drive with 0-1000hz, but I can't find any info on buying a new
> > equivalent, all the new Frenic drives I can find have max frequencies
> > under 500hz.  I'm guessing it is similar to Yaskawa  for most other
> > manufacturers where you have to live in the right part of the world,
> > ask nicely and then maybe they might sell you a drive with the "special"
> HF firmware.
> >
> > Todd Zuercher
> > P. Graham Dunn
> > Inc. > www.pgrahamdunn.com%2Findex.phpdata=05%7C01%7Ctoddz%40pgrahamdunn
> > .com%7Ceea41877b2b24396742608da31e56516%7C5758544c573f47cebee96c3e0806
> > fb43%7C0%7C0%7C637877158582440736%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4w
> > LjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C
> > sdata=uOHHxs%2BZDOeFn049Ft%2FPGkCynNdbIqcS5ngvUh8IAds%3Drese
> > rved=0>
> > 630 Henry Street
> > Dalton, Ohio 44618
> > Phone:  (330)828-2105ext. 2031
> >
> >
> > ___
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> > s.sourceforge.net%2Flists%2Flistinfo%2Femc-usersdata=05%7C01%7Cto
> > ddz%40pgrahamdunn.com%7Ceea41877b2b24396742608da31e56516%7C5758544c573
> > 

Re: [Emc-users] Hight Frequency VFD

[Scott Harwell via Emc-users]

 Todd,
Yaskawa drives just don't brake. If I remember correctly, the V1000 has been 
around for quite some time. 

https://www.cncpd.com/product/cimr-vu4a0038faa-yaskawa-v1000-drive/
Scott


On Monday, May 9, 2022, 01:57:43 PM CDT, Todd Zuercher 
 wrote:  
 
 No, for some reason I hadn't checked with Siemens.  One of our machines even 
has a Siemens drive, but it's a gigantic thing that would never fit this 
machine's cabinet.  I'll look into it.  

We did order a Yaskawa drive, and are waiting on it to come in, figuring that 
if we get in a bind and can't wait for it we can knuckle under and pay the 
machine manufacture their price for one they have in stock, and keep the other 
as a spare.  But for the time being we are slow enough we can make do without 
that machine and can wait for the one we ordered.

Todd Zuercher
P. Graham Dunn Inc.
630 Henry Street 
Dalton, Ohio 44618
Phone:  (330)828-2105ext. 2031

-Original Message-
From: Dave Cole  
Sent: Monday, May 09, 2022 1:56 PM
To: Enhanced Machine Controller (EMC) 
Subject: Re: [Emc-users] Hight Frequency VFD

[EXTERNAL EMAIL] Be sure links are safe.

Have you checked to see if Siemens can help you?
In order to go that fast they will sell you a license to install in a more or 
less standard drive.
I understand that high freq drives can be used for other things, like gas 
centrifuges.
So they try to keep track of where they go.

Dave

On Tue, Apr 26, 2022 at 11:42 AM Todd Zuercher 
wrote:

> Anyone know a good place to purchase a high frequency VFD?  We had the 
> drive in one of our CNCs die.  The old drive was a HSD DS15000.  The 
> spindle is an 18kw 24000rpm 4pole HSD router motor.  The old drive is 
> rated for 1-1000hz and that seems to be the problem, all of the off 
> the shelf drives I can find are limited to output frequencies less 
> than 500hz which would limit our spindles top speed to only 15000rmp.  
> Our machine builder quoted us for a Yaskawa V1000 drive with 1000hz 
> firmware (model#
> VU4A0038FAA-134) that they do have in stock but they are marking up 
> their price to more than double the normal list price for that drive.  
> Every other place I've checked with so far are quoting us months long 
> lead times for that drive.
>
> I don't have to have a Yaskawa drive, I think I'd be ok with any drive 
> capable of 15kw and at least 800hz output.  (Oh, it would be nice if 
> it would fit in the cabinet where the old one did, have about 9inches 
> x 15inches  of space there.)
>
> Anyone have any suggestions for a good source for "obtainable" drive 
> that would fit the bill?  For example we have a machine with a Fuji 
> Frenic drive with 0-1000hz, but I can't find any info on buying a new 
> equivalent, all the new Frenic drives I can find have max frequencies 
> under 500hz.  I'm guessing it is similar to Yaskawa  for most other 
> manufacturers where you have to live in the right part of the world, 
> ask nicely and then maybe they might sell you a drive with the "special" HF 
> firmware.
>
> Todd Zuercher
> P. Graham Dunn 
> Inc. www.pgrahamdunn.com%2Findex.phpdata=05%7C01%7Ctoddz%40pgrahamdunn
> .com%7Ceea41877b2b24396742608da31e56516%7C5758544c573f47cebee96c3e0806
> fb43%7C0%7C0%7C637877158582440736%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4w
> LjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C
> sdata=uOHHxs%2BZDOeFn049Ft%2FPGkCynNdbIqcS5ngvUh8IAds%3Drese
> rved=0>
> 630 Henry Street
> Dalton, Ohio 44618
> Phone:  (330)828-2105ext. 2031
>
>
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Flist
> s.sourceforge.net%2Flists%2Flistinfo%2Femc-usersdata=05%7C01%7Cto
> ddz%40pgrahamdunn.com%7Ceea41877b2b24396742608da31e56516%7C5758544c573
> f47cebee96c3e0806fb43%7C0%7C0%7C637877158582440736%7CUnknown%7CTWFpbGZ
> sb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3
> D%7C3000%7C%7C%7Csdata=Hk9kyvMOSySaGehu%2Bet8v7noYELOJLNG5M4CHy8Q
> 63A%3Dreserved=0
>

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Re: [Emc-users] Hight Frequency VFD

[Todd Zuercher]

No, for some reason I hadn't checked with Siemens.  One of our machines even 
has a Siemens drive, but it's a gigantic thing that would never fit this 
machine's cabinet.  I'll look into it.  

We did order a Yaskawa drive, and are waiting on it to come in, figuring that 
if we get in a bind and can't wait for it we can knuckle under and pay the 
machine manufacture their price for one they have in stock, and keep the other 
as a spare.  But for the time being we are slow enough we can make do without 
that machine and can wait for the one we ordered.

Todd Zuercher
P. Graham Dunn Inc.
630 Henry Street 
Dalton, Ohio 44618
Phone:  (330)828-2105ext. 2031

-Original Message-
From: Dave Cole  
Sent: Monday, May 09, 2022 1:56 PM
To: Enhanced Machine Controller (EMC) 
Subject: Re: [Emc-users] Hight Frequency VFD

[EXTERNAL EMAIL] Be sure links are safe.

Have you checked to see if Siemens can help you?
In order to go that fast they will sell you a license to install in a more or 
less standard drive.
I understand that high freq drives can be used for other things, like gas 
centrifuges.
So they try to keep track of where they go.

Dave

On Tue, Apr 26, 2022 at 11:42 AM Todd Zuercher 
wrote:

> Anyone know a good place to purchase a high frequency VFD?  We had the 
> drive in one of our CNCs die.  The old drive was a HSD DS15000.  The 
> spindle is an 18kw 24000rpm 4pole HSD router motor.  The old drive is 
> rated for 1-1000hz and that seems to be the problem, all of the off 
> the shelf drives I can find are limited to output frequencies less 
> than 500hz which would limit our spindles top speed to only 15000rmp.  
> Our machine builder quoted us for a Yaskawa V1000 drive with 1000hz 
> firmware (model#
> VU4A0038FAA-134) that they do have in stock but they are marking up 
> their price to more than double the normal list price for that drive.  
> Every other place I've checked with so far are quoting us months long 
> lead times for that drive.
>
> I don't have to have a Yaskawa drive, I think I'd be ok with any drive 
> capable of 15kw and at least 800hz output.  (Oh, it would be nice if 
> it would fit in the cabinet where the old one did, have about 9inches 
> x 15inches  of space there.)
>
> Anyone have any suggestions for a good source for "obtainable" drive 
> that would fit the bill?  For example we have a machine with a Fuji 
> Frenic drive with 0-1000hz, but I can't find any info on buying a new 
> equivalent, all the new Frenic drives I can find have max frequencies 
> under 500hz.  I'm guessing it is similar to Yaskawa  for most other 
> manufacturers where you have to live in the right part of the world, 
> ask nicely and then maybe they might sell you a drive with the "special" HF 
> firmware.
>
> Todd Zuercher
> P. Graham Dunn 
> Inc. www.pgrahamdunn.com%2Findex.phpdata=05%7C01%7Ctoddz%40pgrahamdunn
> .com%7Ceea41877b2b24396742608da31e56516%7C5758544c573f47cebee96c3e0806
> fb43%7C0%7C0%7C637877158582440736%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4w
> LjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C
> sdata=uOHHxs%2BZDOeFn049Ft%2FPGkCynNdbIqcS5ngvUh8IAds%3Drese
> rved=0>
> 630 Henry Street
> Dalton, Ohio 44618
> Phone:  (330)828-2105ext. 2031
>
>
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Flist
> s.sourceforge.net%2Flists%2Flistinfo%2Femc-usersdata=05%7C01%7Cto
> ddz%40pgrahamdunn.com%7Ceea41877b2b24396742608da31e56516%7C5758544c573
> f47cebee96c3e0806fb43%7C0%7C0%7C637877158582440736%7CUnknown%7CTWFpbGZ
> sb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3
> D%7C3000%7C%7C%7Csdata=Hk9kyvMOSySaGehu%2Bet8v7noYELOJLNG5M4CHy8Q
> 63A%3Dreserved=0
>

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Re: [Emc-users] Hight Frequency VFD

[Dave Cole]

Have you checked to see if Siemens can help you?
In order to go that fast they will sell you a license to install in a more
or less standard drive.
I understand that high freq drives can be used for other things, like gas
centrifuges.
So they try to keep track of where they go.

Dave

On Tue, Apr 26, 2022 at 11:42 AM Todd Zuercher 
wrote:

> Anyone know a good place to purchase a high frequency VFD?  We had the
> drive in one of our CNCs die.  The old drive was a HSD DS15000.  The
> spindle is an 18kw 24000rpm 4pole HSD router motor.  The old drive is rated
> for 1-1000hz and that seems to be the problem, all of the off the shelf
> drives I can find are limited to output frequencies less than 500hz which
> would limit our spindles top speed to only 15000rmp.  Our machine builder
> quoted us for a Yaskawa V1000 drive with 1000hz firmware (model#
> VU4A0038FAA-134) that they do have in stock but they are marking up their
> price to more than double the normal list price for that drive.  Every
> other place I've checked with so far are quoting us months long lead times
> for that drive.
>
> I don't have to have a Yaskawa drive, I think I'd be ok with any drive
> capable of 15kw and at least 800hz output.  (Oh, it would be nice if it
> would fit in the cabinet where the old one did, have about 9inches x
> 15inches  of space there.)
>
> Anyone have any suggestions for a good source for "obtainable" drive that
> would fit the bill?  For example we have a machine with a Fuji Frenic drive
> with 0-1000hz, but I can't find any info on buying a new equivalent, all
> the new Frenic drives I can find have max frequencies under 500hz.  I'm
> guessing it is similar to Yaskawa  for most other manufacturers where you
> have to live in the right part of the world, ask nicely and then maybe they
> might sell you a drive with the "special" HF firmware.
>
> Todd Zuercher
> P. Graham Dunn Inc.
> 630 Henry Street
> Dalton, Ohio 44618
> Phone:  (330)828-2105ext. 2031
>
>
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[Emc-users] Linuxcnc development machine

[Alan Condit]

I just rebuilt my late 2012 MacMini to be a Debian Bullseye machine. I setup a 
development environment on it. I loaded it with the source for Preempt-RT 
5.15.41 and built a 64 bit kernel for my RaspberryPi 4.

The only problem that I am having is that if I am not using it for a few 
minutes it shuts down. Several other Bullseye users have reported similar 
behavior. So, I’m wondering if I should go back to Buster?

Thanks,
Alan

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[Emc-users] Fwd: A bit OT: Looking for pinout for a Chinese Scale reader head

[andy pugh]

In the application you describe I would rather expect the USB to act
as a battery replacement. Though USB is 5V and the reader heads use a
1.5V battery, so this might be a dangerous assumption.



The scales can be powered through the data cable.  This would be
useful in many fixed installations.

However, they do not like 5V. I experimented and things went wrong (no
smoke, but all LCD elements turned on) at 2.1V.

So, don't plug the USB into a USB socket without doing some careful
tests with a current-limited variable power supply first.

This probably isn't relevant to this query, but there are 3D-printable
connector designs: https://www.thingiverse.com/thing:2477494 as an
example.

In a bit of a coincidence, CTC just spammed me with an email informing
me that they have 50% off digital scales, code DS2022

https://www.ctctools.biz/digital-scales-dro/

-- 
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, 1912


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Re: [Emc-users] A bit OT: Looking for pinout for a Chinese Scale reader head

[Mark]

Thanks Dave.  Somehow I missed that page on the shumatech web site.  
That helps a lot.


I've got a DRO 550 that needs an enclosure and an overlay.  But the DRO 
350 itself is working just fine, all I need are scales that work too and 
are compatible with the DRO.


Mark

On 5/8/22 15:13, dave engvall wrote:

Indeed, it is an interesting approach.
http://www.shumatech.com/support/chinese_scales.htm#Scale%20Connector
It may be time to dig out the scope or to upgrade to newer scales and 
readout.
If the glass scale is very good then it is probably worth the fuss ... 
else
The chinese scales I got were good but not nearly as good as the 
accu-rite 150.
I've not been able to make the chinese scales play nicely with an 
accu-rite readout.
So I did the whole shebang in chinese as a manual readout X, Y, Z for 
my mill. Before I removed the X accu-rite scale I checked it at 1 inch 
intervals against the handwheel for the ballscrew.
This is a 1963 Cinci tracer converted to cnc and at this point back to 
manual. The handwheel checked to 0.001" re the  digital display.

Clearly YMMV.  Best wishes.

Dave




On 5/8/22 7:59 AM, Mark wrote:

Hi All,

I've got an elderly Shumatech DRO-350 and was using it this past week 
and the read head on the X axis of my mini mill decided it was time 
to give up the ghost. I ordered what looked to be a drop in 
replacement but when it arrived, I noticed it had a mini USB 
connector as it's data port. The old chinese scales used a plug that 
had four sprung strips that lay against four strips in the reader 
head. I'd been using a cable I got from Little Machine shop years ago 
that had that plug on the scale end, and a 4 pin mini DIN connector 
on the other that plugged into the DRO-350. Attached is a picture of 
the connection lines. Wondering if anyone knows what the pinout for 
the mini USB connector on the scale would be and if it would match up 
to the lines pictured below on the mini DIN. If so I can cobble 
together a cable that has the mini DIN on one and a mini USB on the 
other.


Thanks,
Mark


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Re: [Emc-users] A bit OT: Looking for pinout for a Chinese Scale reader head

[Mark]

Thanks Scott.  Unforch the DRO uses neither of those connectors.  I've 
got the pinout for the mini Din, was just looking for the scale's mini 
USB pinout.


Mark

On 5/8/22 23:28, Scott Harwell via Emc-users wrote:

  This might help.
Scott


 On Sunday, May 8, 2022, 02:16:56 PM CDT, dave engvall 
 wrote:
  
  Indeed, it is an interesting approach.

http://www.shumatech.com/support/chinese_scales.htm#Scale%20Connector
It may be time to dig out the scope or to upgrade to newer scales and
readout.
If the glass scale is very good then it is probably worth the fuss ...
else
The chinese scales I got were good but not nearly as good as the
accu-rite 150.
I've not been able to make the chinese scales play nicely with an
accu-rite readout.
So I did the whole shebang in chinese as a manual readout X, Y, Z for my
mill. Before I removed the X accu-rite scale I checked it at 1 inch
intervals against the handwheel for the ballscrew.
This is a 1963 Cinci tracer converted to cnc and at this point back to
manual. The handwheel checked to 0.001" re the  digital display.
Clearly YMMV.  Best wishes.

Dave




On 5/8/22 7:59 AM, Mark wrote:

Hi All,

I've got an elderly Shumatech DRO-350 and was using it this past week
and the read head on the X axis of my mini mill decided it was time to
give up the ghost. I ordered what looked to be a drop in replacement
but when it arrived, I noticed it had a mini USB connector as it's
data port. The old chinese scales used a plug that had four sprung
strips that lay against four strips in the reader head. I'd been using
a cable I got from Little Machine shop years ago that had that plug on
the scale end, and a 4 pin mini DIN connector on the other that
plugged into the DRO-350. Attached is a picture of the connection
lines. Wondering if anyone knows what the pinout for the mini USB
connector on the scale would be and if it would match up to the lines
pictured below on the mini DIN. If so I can cobble together a cable
that has the mini DIN on one and a mini USB on the other.

Thanks,
Mark


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Re: [Emc-users] Awesome Linuxcnc gui

[Viesturs Lācis]

I stand corrected, thank you!

Viesturs

svētd., 2022. g. 8. maijs, plkst. 16:04 — lietotājs Feral Engineer
() rakstīja:
>
> https://youtu.be/hKqMdsLQJJA
>
> Phil T.
> The Feral Engineer
>
> Check out my LinuxCNC tutorials, machine builds and other antics at
> www.youtube.com/c/theferalengineer
>
> Help support my channel efforts and coffee addiction:
> www.patreon.com/theferalengineer
>
> On Sun, May 8, 2022, 5:54 AM Viesturs Lācis 
> wrote:
>
> > Umm but what makes you think that this is LinuxCNC? There is nothing
> > in description and I did not hear any comments in background. Did I
> > miss something?
> >
> > Viesturs
> >
> > trešd., 2022. g. 27. apr., plkst. 04:54 — lietotājs andrew beck
> > () rakstīja:
> > >
> > > Hey guys
> > >
> > > Does anyone know who built this?
> > >
> > > I'm hoping he will allow us to have a look
> > >
> > > https://youtu.be/atD7sn25XTY
> > >
> > > ___
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> >
> >
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>
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Re: [Emc-users] Awesome Linuxcnc gui

[Jérémie Tarot]

Le lun. 9 mai 2022 à 06:44, andrew beck  a écrit :

> And for those who didn't see it the guy has now opened a forum post up.
>
> Thank you  very much sir
>
> Let's all try learn how he did it.
>
>
>
>
> https://forum.linuxcnc.org/show-your-stuff/45811-promecor-larhe-retrofit-with-tkxhmi#242183


Awesome!


>

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