How do I connect the Mesa 7i96s to Delta B3 servos

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28 Jan 2024 20:54 #291830 by Millimetergott
Hello guys, I'm currently in the process of completing a retrofit on my milling machine. I swapped the old motors for Delta B3 1kw servos. Now I want to connect them via step and direction signal, but I don't know where to start and I don't know anything about it. I can't figure it out from the instructions either. Can someone help me? I use a Mesa 7i96s to control it

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29 Jan 2024 19:06 #291919 by zz912
You should start here:
 

Pulse = step
Sign = dir

I recomended Mesa 7i85 for encoder output.
Attachments:
The following user(s) said Thank You: tommylight

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29 Jan 2024 19:32 #291923 by Millimetergott
Which pins are absolutely required or can I set this via the parameters?

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29 Jan 2024 20:16 #291928 by PCW
The minimum for a step/dir setup would be:

SIGN+ 7I96_DIR+
SIGN-  7I96_DIR+
PULSE+ 7I96_STEP+
PULSE-  7I96_STEP-

If one of the digital inputs can be programmed as ENABLE
and driven by a 7I96 output, That's probably better

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29 Jan 2024 20:31 #291931 by Unlogic
I'm using a Mesa 7i96S on my mill with Delta B3 servos. I've posted complete schematics in this thread:

forum.linuxcnc.org/12-milling/50559-opti...mh50v-cnc-conversion

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29 Jan 2024 20:40 #291933 by tommylight
@PCW,
There is a typo, the second line should have - at the end.

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02 Feb 2024 22:01 #292254 by Millimetergott
I would like to thank you in advance for your help. Cables are already soldered according to your plan, but I don't quite understand the parameterization of the power amplifier. Could you help me or send me yours?

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02 Feb 2024 22:59 #292257 by chris@cnc
I started with the quick guide from here. 
Is for the B2 controller but I think should work for B3 too. 
www.damencnc.com/userdata/file/ASDA-B2_Quick_Start_Guide.pdf

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03 Feb 2024 09:00 #292286 by Unlogic

I would like to thank you in advance for your help. Cables are already soldered according to your plan, but I don't quite understand the parameterization of the power amplifier. Could you help me or send me yours?
 

The B3 drives have a large amount of parameters available. At least it felt like that for a rookie like me. In the end I sat down and went through the list of available parameters in the manual and tried filter out which ones that applied to my setup.

In the end I didn't change many at all, basically only the mapping of some output and input pins and the number of steps per revolutions (egear).

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17 Apr 2024 16:18 - 17 Apr 2024 16:19 #298461 by Millimetergott
Last edit: 17 Apr 2024 16:19 by Millimetergott.

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