StepperOnline A6 Servo

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12 Feb 2025 21:29 #321382 by tommylight
Replied by tommylight on topic StepperOnline A6 Servo
Weis ich nicht, hab nie EtherCAT nutzt.

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17 Feb 2025 00:46 - 17 Feb 2025 00:49 #321788 by MobiusToast
Replied by MobiusToast on topic StepperOnline A6 Servo
I got my motors and drivers and was able to get them setup thanks to dschultz's configuration files. My next goal is to get sensorless homing working, using homing method -2. My understanding is that I will need a custom homing component to use the external homing on the servo drive. I noticed that rodw was working on a github repository for just that . I gave the instructions a shot, and was able to build and install the component; however, it does not seem to work. I can see the additional pins that it creates in LCNC (e.g. joint.n.request_custom_homing, joint.n.is_custom_homing, and joint.n.custom_homing_finished), but starting homing does not set joint.0.request_custom_homing and setting it manually does not seem to do anything. I feel like I must be missing something in my hal file.
Something else that is unclear to me is how the homing method is set. In the manual, PDO 6098h sets the homing method. Would I need to set that in my hal file using setp? Attached are my configuration files. Any help is greatly appreciated!

 

File Attachment:

File Name: A6-machine.ini
File Size:2 KB
 

File Attachment:

File Name: ethercat-conf.xml
File Size:2 KB
 

File Attachment:

File Name: A6-machine.hal
File Size:2 KB
Attachments:
Last edit: 17 Feb 2025 00:49 by MobiusToast. Reason: attachments

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17 Feb 2025 08:42 #321810 by rodw
Replied by rodw on topic StepperOnline A6 Servo
I have not yet got a working custom homing component but I am back working on it. Basically over the weekend I threw in a bunch of pins with a view to eliminating the cia402 component. I think I will modify that so it has a parameter that bypasses all homing features of cia402.comp. I have not connected anything to hal.

github.com/rodw-au/cia402_homecomp

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17 Feb 2025 15:12 #321841 by dschultz
Replied by dschultz on topic StepperOnline A6 Servo
Rod, thanks for you time and effort on this!
I am currently in the middle of my mechanical install on the machine and plan to have that done in the next couple of weeks.
At that point it will be on to setting up homing and tuning.
Hoping to be able to use internal homing...
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17 Feb 2025 17:40 #321848 by zmrdko
Replied by zmrdko on topic StepperOnline A6 Servo
I am closely watching this too. I was trying to make work external homing on Delta B3 servos, but it did not work, no matter how I connected hal pins.
The closest I got was, when I was able to home drive, but it jumped back to original position (if the following error was large enough).
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17 Feb 2025 18:38 #321852 by rodw
Replied by rodw on topic StepperOnline A6 Servo
Glad there is some interest in this. I made a bit more progress last night and have now hooked up a hal file, but have not done any more.
We should not hijack this thread but I will raise another thread when I get a it further. 

 
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