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Home Forum HAL HAL Components USE_INDEX in homing with HAL

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TOPIC: USE_INDEX in homing with HAL

USE_INDEX in homing with HAL 23 Dic 2009 21:46 #1384

  • aike
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Hi all!
I want to use USE_INDEX = TRUE scheme for homing.
I found the description of this method in HAL Manual Chapter 4.5 Encoder.
Can anybody help me with examples?
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Re:USE_INDEX in homing with HAL 25 Dic 2009 04:55 #1393

  • BigJohnT
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Please post questions only in one forum. Cross posting is not needed.

Do you have a servo driven machine with an encoder feedback that has an index pulse?

John
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Re:USE_INDEX in homing with HAL 25 Dic 2009 06:01 #1395

  • robh
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please let us know what hardware you are using?
MESA card or other
as john says do your encoders have an index signal.

if so take a look at the servo example hal files included with emc these show a MESA setup but as we dont know what setup you are running im afraid we can not offer any more detail help

thanks,
rob
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Re:USE_INDEX in homing with HAL 25 Dic 2009 10:09 #1397

  • aike
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BigJohnT wrote:
Please post questions only in one forum. Cross posting is not needed.

Do you have a servo driven machine with an encoder feedback that has an index pulse?

John
Yes, I have servo driven machine (SA-030-KM-11-04.0-030 www.bsystem.ru/products/55.php).
We use lathe scheme, with LPT output, XZ axes, no any additional servo or any card.
But only instead of step motor, we use above servo driven machine per each axe.
It permit us to make deviavation in 0,005 mm.
Off couse, we adjust config according to accuracy. But so as this servo machine permit
to make more 2500 rnd/min and has 6Hm, we can adjust its drive flexible.
Now we have only one problem. Every time after switch on the lathe, we have "new" coordinate
system. Latch and switch limit make error in 0.1 - 0.05 mm. If we will use "USE_INDEX", then
our coordinate system will adjusted each time in join limit switch and strop impulse from
servo drive.
We 've read the HAL manual, and found that can use it in our reseach.
We need only example (config) how to do it.
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Re:USE_INDEX in homing with HAL 26 Dic 2009 04:26 #1400

  • BigJohnT
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The following use_index = yes

montenc
sim/servo
all the hostmot2 servo
demo_mazak
boss

John
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