Il giorno mer, 15/08/2012 alle 07.15 -0500, Stuart Stevenson ha scritto:
> Guys
>
> let's look at this a little bit
>
> You want to keep the slide from attempting to move while the brake is
> engaged.
>
> Is that the desired machine action?
>
> If you do not physically mount a switch to the bra
W/o feedback its open loop. Just like a stepper motor. Lots of
applications are fine w/ those.
On Wed, Aug 15, 2012 at 8:15 AM, Stuart Stevenson wrote:
> Guys
>
> let's look at this a little bit
>
> You want to keep the slide from attempting to move while the brake is
> engaged.
>
> Is that t
Guys
let's look at this a little bit
You want to keep the slide from attempting to move while the brake is
engaged.
Is that the desired machine action?
If you do not physically mount a switch to the brake how does the control
know the brake is engaged or not?
Even if you find a software soluti
2012/8/15 sam sokolik :
> I just played with master.
>
> It looks like if you add LOCKING_INDEXER = 1 to a linear axis - it
> doesn't create the pins. (but does make it so you cannot jog it) So it
> 'sort of' works. :). It probably should do all or nothing.
>
If I understand correctly, then if
Thankyou, the first solution is not praticable becouse of the PID, after
unlock the motor it try to regain the error with a error proportional
velocity, the second I will try.
2012/8/15 andy pugh
> On 15 August 2012 09:59, Andrea Buono wrote:
>
> > I have made some test with the axis.N.motor-po
On 15 August 2012 09:59, Andrea Buono wrote:
> I have made some test with the axis.N.motor-pos-fb but the
> tracking error remain.
A very crude solution would be to increase the f-error limits so that
the tracking error is ignored.
Even cruder would be to net motor-pos-fb to motor-pos-cmd so tha
Hi,
Thankyou for your test, you have save me much time, but I'm a little
disappointed becouse I think that I'm stupid becouse I can't find a way to
do the job ... is it impossible that in all the time that linuxcnc exist no
one had my same problem.
Well, a way illustrated from Kirk Wallace seems g
I just played with master.
It looks like if you add LOCKING_INDEXER = 1 to a linear axis - it
doesn't create the pins. (but does make it so you cannot jog it) So it
'sort of' works. :). It probably should do all or nothing.
sam
On 08/14/2012 03:46 PM, Andrea Buono wrote:
> Yes it is,
>
> 201
I would first check to make sure that your pneumatics are working
correctly. I have found on machines I worked on that the silencer, on the
exhaust port was partially plugged up, and caused the cylinder to release
slowly. A new silencer corrected the issue.
But I do like the suggestions from the
Yes it is,
2012/8/14 sam sokolik
> Was it axis 0 that you added the LOCKING_INDEXER = 1 to*?
>
> sam
> *
> On 8/14/2012 3:31 PM, Andrea Buono wrote:
> > Hi,
> >
> > thanks to all,
> >
> > well I have made a test, I have add LOCKING_INDEXER = 1 in the linear
> axis
> > and then I had run linuxcnc
Was it axis 0 that you added the LOCKING_INDEXER = 1 to*?
sam
*
On 8/14/2012 3:31 PM, Andrea Buono wrote:
> Hi,
>
> thanks to all,
>
> well I have made a test, I have add LOCKING_INDEXER = 1 in the linear axis
> and then I had run linuxcnc, no error at startup and when I have tried to
> jog the ax
Hi,
thanks to all,
well I have made a test, I have add LOCKING_INDEXER = 1 in the linear axis
and then I had run linuxcnc, no error at startup and when I have tried to
jog the axis an error "Can't jog a locking axis"..sounds
good...after this I have modified the hm2-servo.hal to add the l
To add - It doesn't seem like it cares if it is linear or not... (I use
it on our table indexer and it works great (delays set for up/down in
ladder that control the hal loopback.)
http://www.youtube.com/watch?v=vLE4lzPcEo8&feature=plcp
sam
On 8/14/2012 12:12 PM, sam sokolik wrote:
> Someone m
Someone may have to correct me.. But I think you could use Locking
rotory.. A couple of thing to think about..
The axis can only be moved by itself.
The axis moves at rapid (G0)
•LOCKING_INDEXER = 1 - When this is set to 1 a G0 move for this axis
will initiate an unlock with axis.N.unlock pin t
Andrea,
If you hold the feed rate at zero with the motion.feed-hold until the brake
is released then no matter how long the brake takes to release the slide
will not move.
Install a physical switch to trip when the brake is physically unlocked.
Set up the motion.feed-hold to read the switch on the
On Tue, 2012-08-14 at 17:40 +0200, Andrea Buono wrote:
> Hi,
>
> I know this HAL pin but the problem is before, I mean I know that the axis
> have to move because the pid output is not zero and then with some net and
> delay I unlock the brake and set the direction output for the motor, if I
> tak
Hi,
I know this HAL pin but the problem is before, I mean I know that the axis
have to move because the pid output is not zero and then with some net and
delay I unlock the brake and set the direction output for the motor, if I
take the feed-hold to true the command gone to zero and the axis will
There is a HAL pin on the motion controller called motion.feed-hold
motion.feed-hold IN BIT
When Feed Stop Control is enabled with M53 P1, and this bit is TRUE,
the feed rate is set to 0.
Set up your HAL config so that pin is driven TRUE whenever the brake
is on.
On Tue, Aug 14, 2012, at 11:08
Hi,
I'm setting up a drilling machine with a single axis controlled by an
inverter with encoder with a Mesa 7i43 card for the loop
The axis has a brake which acts on a rack railway by a cylinder.
Now to allow time for the cylinder to unlock, I gave a delaied command to the
direction of inverter, b
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