> From: Leonardo Marsaglia [mailto:ldmarsag...@gmail.com]
> >
> > BTW, Here's a link to the video that shows how I screwed up thinking it
> > was in position mode and was losing position with higher velocities.
> > https://youtu.be/cx-kAqdwceU
> >
> > When really it was running in velocity mode.
>
> BTW, Here's a link to the video that shows how I screwed up thinking it
> was in position mode and was losing position with higher velocities.
> https://youtu.be/cx-kAqdwceU
>
> When really it was running in velocity mode.
So if I understand correctly, these drives have the option of
BTW, Here's a link to the video that shows how I screwed up thinking it was in
position mode and was losing position with higher velocities.
https://youtu.be/cx-kAqdwceU
When really it was running in velocity mode.
John
> -Original Message-
> From: Leonardo Marsaglia
>
> Nope. Drive and motor and cables. The adaptor board converts the TTL
> step/dir or pwm/dir into the appropriate signals. Step requires RS422 for
> high speed step rates. Slower rates can be open collector type drivers.
> The PWM module I picked up off aliexpress for about $10 which is how
sounds like its just hard to get ahold of them.. but any ideas sing out.
I think the motors on the cnc lathe are probably 4kw at a guess.
On Thu, Apr 9, 2020 at 12:43 PM John Dammeyer
wrote:
> The STBML drives for AC servos aren't too hard to tune. Especially if the
> encoder has a UVW output
The STBML drives for AC servos aren't too hard to tune. Especially if the
encoder has a UVW output too. I was never able to satisfactorily tune the DC
Servos with the STMBL drive. I went back to the HP_UHU drives with Henrik
Olsson's dsPIC upgrade processor module. They work really nicely.
yuhai is similar.
they link the drive to the motor with a motor code. I actually tried to
get my heidenhain motors going first on yuhai drives. they tried to help
me set it up and recommended the closest settings I could use for motor
code. and I fitted one of their encoders on the back just a
> -Original Message-
> From: andrew beck [mailto:andrewbeck0...@gmail.com]
> Sent: April-08-20 3:49 PM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] closing the loop in linuxcnc with a 7i76 mesa card
> and step direction control
>
> john one thing I still havn't
actually if anyone has a minute I am just about to connect my MPG up to the
mesa 7i76 board.
I am using the 5v fanuc mpg for now just to get it working. I will use the
12 volt mpg later probably or buy a whole pendant.
I think I may need to connect the 5vground and 24v ground together on the
john one thing I still havn't sussed is the windows servo tuning software
for the drives. I am still struggling to connect
Did you get that sussed for the bergerda servo drives?
On Thu, Apr 9, 2020 at 10:41 AM John Dammeyer
wrote:
> Hi Andrew,
>
> The Bergerda sales support was excellent and
Hi Andrew,
The Bergerda sales support was excellent and any questions he couldn't answer
went to his engineers. They came back with answers right away. I think there
are now two classes of service from China.
There is still the make a buck at any price group at the lowest level of
quality
Haha thanks Sam!
On Thu, Apr 9, 2020, 9:51 AM Sam Sokolik wrote:
> Yay!!!
>
>
> On Wed, Apr 8, 2020, 4:32 PM andrew beck wrote:
>
> > hi guys if anyone wants to connect a external e stop with linuxcnc and
> have
> > it all connected up properly, I finally worked it out and made a video of
> >
john you drives look very similar to mine lol
the brand I use is yuhai.
they are very good.
1 matched set 700w servo drive an motor is about 200 usd I think. that is
just will the standard 2500 ppr encoders. but for $50 more you can get a
17 bit absolute encoder from japan or germany i
Yay!!!
On Wed, Apr 8, 2020, 4:32 PM andrew beck wrote:
> hi guys if anyone wants to connect a external e stop with linuxcnc and have
> it all connected up properly, I finally worked it out and made a video of
> the process.
>
> my E stop video showing the whole process from start to finish
thanks Todd. sounds like I should get the 7i85s then. or possibly the
7i89 if I can get a hold of them. as peter said above that they have extra
encoder counters which would be nice for a future 5 axis project.
I am just trying to get the chinese servo tuning software going now
actually. they
hey jon
I actually have some of your servo drives here at the moment. they look
pretty good. I haven't used them yet as they are two small and the chinese
stuff runs straight from 400v three phase so I don't need a transformer.
On Mon, Apr 6, 2020 at 1:47 PM Jon Elson wrote:
> On 04/05/2020
hi guys if anyone wants to connect a external e stop with linuxcnc and have
it all connected up properly, I finally worked it out and made a video of
the process.
my E stop video showing the whole process from start to finish (its long
and boring but should help people who are stuck lol)
17 matches
Mail list logo
