On Tue, 3 Jan 2017 09:40:39 +0700
TJoseph Powderly wrote:
> Nicklas, hello
>
>
> On 01/03/17 04:17, Nicklas Karlsson wrote:
> > I made local change to the hostmot2 stepper drivers to both send and
> > receive absolute position encoder style. Behaviour could be changed with
> > configuration p
> Nicklas hello
> everybody is a novice in EDM, its just full of surprises ;-)
>
> 'interpolated position mode' ...doesthis mean position loop in hardware?
No but it could as well be. It is position loop locally inside servo driver. It
is ran twice each switching period, once for each switching
Hello Peter,
It works and I can read the value now. How can I scale this correctly? I
have a 0-5V input and need my GladeVcp bar to show Maximum at 5V input but
at 5V input it does not show maximum.
I looked at the 'scale' command but all examples and descriptions I could
find are for outputs and
Nicklas, hello
On 01/03/17 04:17, Nicklas Karlsson wrote:
> I made local change to the hostmot2 stepper drivers to both send and receive
> absolute position encoder style. Behaviour could be changed with
> configuration parameter.
do i think correctly ? the stepper gets position commands, not s
Nicklas hello
everybody is a novice in EDM, its just full of surprises ;-)
'interpolated position mode' ...doesthis mean position loop in hardware?
regards
Tomp tjtr33
On 01/03/17 01:34, Nicklas Karlsson wrote:
> Me is novice on EDM but it seems you know what you are doing. I got digital
> outp
I made local change to the hostmot2 stepper drivers to both send and receive
absolute position encoder style. Behaviour could be changed with configuration
parameter.
The change is simple but I am still thinking about protocol because with
interpolated position mode there is a need to set param
On 2 January 2017 at 20:04, Cecil Thomas wrote:
> I don't know why this is the case unless the 5i25
> didn't exist when the docs were written
This is exactly it.
Initially there was just the 5i20 and the docs seem to have been
started on the assumption that is all there would ever be, and then
ha
Andy,
Thanks for the info.
One of the things I noticed very early on as I
was trying to work all this out by myself is that
the 5i25 card is never mentioned in the documentation.
I see all kinds of examples etc. for 5i20 and
other cards but 5i25 seems to be the red headed step child of documen
Nicklas ,
any changes needed , i'd like to know
should we put a repro together , might make life easier
Sarah
On 2 January 2017 at 18:34, Nicklas Karlsson
wrote:
> Me is novice on EDM but it seems you know what you are doing. I got
> digital outputs connected on machine this weekend and will
Me is novice on EDM but it seems you know what you are doing. I got digital
outputs connected on machine this weekend and will probably be able to test
this weekend.
I have made my own servo drivers with interpolated position mode, response is
fast even though I have not yet perfected control l
Thanks Thomas , for the video , very interesting and informative too , i
learned some more lol
look forward to getting all this together
Sarah
On 2 January 2017 at 16:53, TJoseph Powderly wrote:
> Hello
> video of early iteration of edm panel in use
> https://videobin.org/+fe8/jab.html
> i thin
Hello
video of early iteration of edm panel in use
https://videobin.org/+fe8/jab.html
i think an example of reading the db file needs to be done soon
but a working model is better than just thinkin'
thanks
tomp tjtr33
--
> Its radiated noise from the motor supplies. Directly related to the
> switching, which is at nominally 17 Kilohertz, but the harmonics reach
> to well above 100 Megahertz. Never seen anything ring that way, 10 to 30
> cycles to get down to 50% of the peak.
I think you need a common mode filte
On 2 January 2017 at 15:47, andy pugh wrote:
> There is a slightly better set of docs here:
> http://linuxcnc.org/docs/devel/html/drivers/hostmot2.html
> But it is very much out-of date.
One way in which is is out of date is in insisting that only step-dir
mode is supported by the driver, whereas
On 2 January 2017 at 15:35, Cecil Thomas wrote:
> My experience has been that there is a presumption of comprehension
> in the documentation of hm2 that does not necessarily exist in the user (me).
There is a slightly better set of docs here:
http://linuxcnc.org/docs/devel/html/drivers/hostmot2
Gregg,
I am using a common treadmill controller called an MC-60. I chose it
after months of research and deliberation --NOT.
Actually it and the motor were in the treadmill that I was given to
get it out of a friends house. It is not four quadrant, just a
simple scr drive, but it works just fin
Thanks Gene and Andy. I believe Andy's answer is specific enough for
me to implement and I will try it as soon as I get to the shop.
I am pretty slow on the software side of hal and hm2. It is taking
me a while to get my mind around the syntax.
My experience has been that there is a presumpt
On 2 January 2017 at 04:39, Cecil Thomas wrote:
> How and where do I 'invert the pwm'
The PWM signal appears to be on GPIO number 8 from the 5i25. So insert
this line in your HAL file somewhere:
setp hm2_5i25.0.gpio.008.invert_output 1
(the docs are here, but could certainly be clearer, it's to
On Monday 02 January 2017 00:56:48 Gregg Eshelman wrote:
> What controller are you using? I need one able to handle a 110 volt
> DC, 1.5HP treadmill motor. My 9x20 CNC conversion is on hold due to a
> lack of motor controller.
The best controller you can put in there is a Pico Systems pwm-servo.
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