Index homing Mesa 7i96s
- routerman22
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10 Jan 2023 09:47 #261430
by routerman22
Replied by routerman22 on topic Index homing Mesa 7i96s
most likely I'll just by an expansion board to keep it simple. For the 100 bucks or so it is not worth making a super custom config. Thank you anyway!
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11 Jan 2023 03:02 #261531
by PCW
Replied by PCW on topic Index homing Mesa 7i96s
Here is firmware for a 7I96S + 7I85 (not 7I85S) with stepgen index:
The 7I85 encoder index inputs can be stepgen or encoder indexes
The 7I85 encoder index inputs can be stepgen or encoder indexes
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05 Apr 2023 07:13 #268319
by hsn
Replied by hsn on topic Index homing Mesa 7i96s
This is awesome. Would it be possible to build a firmware which replaces the encoder with the index inputs on the 7i96s?
Unfortunately I already have a separate use case for the isolated I/O but I won't be needing an encoder on this machine.
Unfortunately I already have a separate use case for the isolated I/O but I won't be needing an encoder on this machine.
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05 Apr 2023 15:49 #268340
by PCW
Replied by PCW on topic Index homing Mesa 7i96s
Its possible (say encoder A,B,IDX = Stepgen 0,1,2 index)
I'll try and get to this some time this week
I'll try and get to this some time this week
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07 Apr 2023 16:32 #268529
by PCW
Replied by PCW on topic Index homing Mesa 7i96s
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07 Apr 2023 23:56 #268565
by PCW
Replied by PCW on topic Index homing Mesa 7i96s
I should note that there is also firmware that puts all 5 index inputs
on P1 (but of course these inputs are not really suitable for field wiring)
on P1 (but of course these inputs are not really suitable for field wiring)
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- besriworld
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15 Jun 2023 19:21 #273639
by besriworld
Replied by besriworld on topic Index homing Mesa 7i96s
Hello,
can you share the magic you do with editing the file? I have the output of the encoder from the servo driver. But many threads mention lag in different servo drivers. I'm thinking of leaving the PID control to the servo drive.
If you can share an example. Thanks!
can you share the magic you do with editing the file? I have the output of the encoder from the servo driver. But many threads mention lag in different servo drivers. I'm thinking of leaving the PID control to the servo drive.
If you can share an example. Thanks!
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15 Jun 2023 19:40 #273641
by PCW
Replied by PCW on topic Index homing Mesa 7i96s
Not sure what you are asking for...
If this is about using stepgen index for homing, the hal connections
are identical to a system using encoder index for homing except that you use
the stepgen index enable pin in the hal file rather than the encoder index enable
pin
Note that you will always use the local PID in HAL with Mesa stepgen hardware
If this is about using stepgen index for homing, the hal connections
are identical to a system using encoder index for homing except that you use
the stepgen index enable pin in the hal file rather than the encoder index enable
pin
Note that you will always use the local PID in HAL with Mesa stepgen hardware
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- besriworld
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15 Jun 2023 21:04 #273646
by besriworld
Replied by besriworld on topic Index homing Mesa 7i96s
I understood that i needed firmware that supports index on the stepgens.
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15 Jun 2023 21:14 #273648
by PCW
Replied by PCW on topic Index homing Mesa 7i96s
Yes, that is needed if you wish to home to index with a step/dir system.
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