M19 spindle orient

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14 Jan 2018 03:28 #104415 by dinkata
Replied by dinkata on topic M19 spindle orient
raglanlittlejohn thanks !
Does this circuit work on a real machine ?
I'll try :)

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14 Jan 2018 10:06 #104421 by raglanlittlejohn
Replied by raglanlittlejohn on topic M19 spindle orient
I've got all the electronics connected up and working,ready to fit to a lathe. This orient part works as it should. The PID varies the commanded speed to the motor as expected. The closer the motor gets to its final position, the slower it's commanded to go.
I've only got an older style VFD, and it wont respond as quickly as I'd like for accurate orient positioning. I'm trying to find out if a new vector type VFD would be better.
Good luck with your project.

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14 Jun 2019 01:00 #136860 by adamj12b
Replied by adamj12b on topic M19 spindle orient

raglanlittlejohn wrote: I've got all the electronics connected up and working,ready to fit to a lathe. This orient part works as it should. The PID varies the commanded speed to the motor as expected. The closer the motor gets to its final position, the slower it's commanded to go.
I've only got an older style VFD, and it wont respond as quickly as I'd like for accurate orient positioning. I'm trying to find out if a new vector type VFD would be better.
Good luck with your project.


I know it's been awhile, but wanted to let you know that the newer drives can handle the faster direction changes pretty well. My Emerson Commander SK is switched into a high accel mode for orientation 0.1 seconds per 1000hz and it does a nice job. I have orientation rpm limited to 200 in the pid.

-Adam

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07 Aug 2019 21:42 #141634 by lamandesigns
Replied by lamandesigns on topic M19 spindle orient
Is anyone that has this working able to share their hal and ini file for this?

Cheers,
Omid

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08 Aug 2019 21:45 #141705 by raglanlittlejohn
Replied by raglanlittlejohn on topic M19 spindle orient
Adam, good to know you had success with this. Omid, I have not looked at this for ages, but did get it working quite well with a newer vfd. I'll attach the hal and ini file I was using, but it really needs re-doing (lots of commented out bits etc).
John

File Attachment:

File Name: 18-03-2018...08-2.ini
File Size:3 KB

File Attachment:

File Name: 18-03-2018...08-2.hal
File Size:14 KB
Attachments:
The following user(s) said Thank You: lamandesigns

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08 Aug 2019 21:47 #141706 by lamandesigns
Replied by lamandesigns on topic M19 spindle orient
Great, thank you! I have a new Hitachi SJP1, so will be ok in that department.

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