On 08/11/2018 08:03 PM, Gene Heskett wrote:
On Saturday 11 August 2018 20:14:46 Jon Elson wrote:
On 08/11/2018 03:37 PM, Gene Heskett wrote:
On Saturday 11 August 2018 15:29:43 andy pugh wrote:
On 11 August 2018 at 20:11, Gene Heskett
wrote:
Where can I find a tut on how the resolver
On Saturday 11 August 2018 20:14:46 Jon Elson wrote:
> On 08/11/2018 03:37 PM, Gene Heskett wrote:
> > On Saturday 11 August 2018 15:29:43 andy pugh wrote:
> >> On 11 August 2018 at 20:11, Gene Heskett
> >>
> >> wrote:
> >>> Where can I find a tut on how the resolver works?
> >>
> >>
On Saturday 11 August 2018 17:02:49 andy pugh wrote:
> On 11 August 2018 at 21:37, Gene Heskett wrote:
> > Quite simplified, covers the basics but makes little or no mention
> > of the resolvers speed limits. So in both cases, the encoder is
> > king, and much cheaper to implement.
>
> Resolvers
On 08/11/2018 03:37 PM, Gene Heskett wrote:
On Saturday 11 August 2018 15:29:43 andy pugh wrote:
On 11 August 2018 at 20:11, Gene Heskett
wrote:
Where can I find a tut on how the resolver works?
https://en.wikipedia.org/wiki/Resolver_(electrical)
Quite simplified, covers the basics but
On 08/11/2018 02:29 PM, andy pugh wrote:
On 11 August 2018 at 20:11, Gene Heskett
wrote:
Where can I find a tut on how the resolver works?
https://en.wikipedia.org/wiki/Resolver_(electrical)
Also, you can look at the Analog Devices 2S1200 chip, which
is one classical way to get info from
On Saturday 11 August 2018 16:46:27 jeremy youngs wrote:
> On Sat, Aug 11, 2018, 3:32 PM Gene Heskett
wrote:
> > On Saturday 11 August 2018 15:24:17 Ken Strauss wrote:
> > > I was also curious and found
> > > https://www.motioncontroltips.com/faq-why-are-so-many-designers-re
> > >plac ing-re
On Sat, Aug 11, 2018, 4:09 PM andy pugh wrote:
>
> Yes, in "a" mode the bldc component can be used to convert resolver
> angle to commutation signals.
>
Sweet
>
Did your motor and drive start off life together?
No , I totally lucked into this motor from my favorite surplus outlet at
$200 to
On Sat, Aug 11, 2018 at 4:37 PM Gene Heskett wrote:
>
> Quite simplified, covers the basics but makes little or no mention of the
> resolvers speed limits. So in both cases, the encoder is king, and much
> cheaper to implement.
>
> I only have resolvers because I got them used, so encoders
On 10 August 2018 at 01:30, Greg Bentzinger via Emc-users
wrote:
> Has anyone played around with this: Pi-paraport
I made some of these, and gave them away at the Wichita fest:
https://photos.app.goo.gl/vi8GJQZfBKV94jnH8
I am currently trying to get the Machinekit Pi GPIO driver to compile
on
On 11 August 2018 at 21:41, jeremy youngs wrote:
> 7i49, budget don't allow for it for a few weeks . I am busy in the shop
> with big jobs , yes I have contemplated the 7i49 . Can the communication
> signal be derived from the 7i49 ? If so then it's likely that will be my
> eventuality.
Yes, in
On 11 August 2018 at 21:37, Gene Heskett wrote:
> Quite simplified, covers the basics but makes little or no mention of the
> resolvers speed limits. So in both cases, the encoder is king, and much
> cheaper to implement.
Resolvers are absolute and much tougher.
As for speed limits, that really
On Sat, Aug 11, 2018, 3:32 PM Gene Heskett wrote:
> On Saturday 11 August 2018 15:24:17 Ken Strauss wrote:
>
> > I was also curious and found
> > https://www.motioncontroltips.com/faq-why-are-so-many-designers-replac
> >ing-re solvers-with-encoders/
>
> Some excellent discussions there Ken,
7i49, budget don't allow for it for a few weeks . I am busy in the shop
with big jobs , yes I have contemplated the 7i49 . Can the communication
signal be derived from the 7i49 ? If so then it's likely that will be my
eventuality.
Correct me if I'm wrong been hashing docs in my spare time.
1 open
On Saturday 11 August 2018 15:29:43 andy pugh wrote:
> On 11 August 2018 at 20:11, Gene Heskett wrote:
> > Where can I find a tut on how the resolver works?
>
> https://en.wikipedia.org/wiki/Resolver_(electrical)
Quite simplified, covers the basics but makes little or no mention of the
On Saturday 11 August 2018 15:24:17 Ken Strauss wrote:
> I was also curious and found
> https://www.motioncontroltips.com/faq-why-are-so-many-designers-replac
>ing-re solvers-with-encoders/
Some excellent discussions there Ken, thank you.
One thing that was mentioned in another page there but
On 11 August 2018 at 20:11, Gene Heskett wrote:
> Where can I find a tut on how the resolver works?
https://en.wikipedia.org/wiki/Resolver_(electrical)
--
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mechanical geniuses, daredevils and
I was also curious and found
https://www.motioncontroltips.com/faq-why-are-so-many-designers-replacing-re
solvers-with-encoders/
> -Original Message-
> From: Gene Heskett [mailto:ghesk...@shentel.net]
> Sent: Saturday, August 11, 2018 3:12 PM
> To: emc-users@lists.sourceforge.net
>
On Saturday 11 August 2018 15:03:28 andy pugh wrote:
> On 11 August 2018 at 19:48, jeremy youngs wrote:
> > I am planning on ignoring them at this time . I have a cui encoder
> > that can go on it.
>
> Does the budget extend to a 7i49?
>
> You can probably use a pair of 7i49 analogue outputs per
On 11 August 2018 at 19:48, jeremy youngs wrote:
> I am planning on ignoring them at this time . I have a cui encoder that can
> go on it.
Does the budget extend to a 7i49?
You can probably use a pair of 7i49 analogue outputs per drive to
create the two phase voltages. (and use the inputs to
I am planning on ignoring them at this time . I have a cui encoder that can
go on it.
On Sat, Aug 11, 2018, 1:24 PM andy pugh wrote:
> On 10 August 2018 at 23:11, jeremy youngs wrote:
> > Good day gents. Trying to get a handle on sinusoidal commutatation. I
> need
> > 2 pins 0-5 volt 120
On 10 August 2018 at 23:11, jeremy youngs wrote:
> Good day gents. Trying to get a handle on sinusoidal commutatation. I need
> 2 pins 0-5 volt 120 degrees out of phase to commutate my drive .
> http://www.linuxcnc.org/docs/html/man/man9/bldc.9.html#OPERATING%20MODES
> I find this in the docs ,
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