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Author Topic: Motor tunning with CSMIO/IP-A (PID) Trouble with encoders  (Read 18481 times)

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Re: Motor tunning with CSMIO/IP-A (PID) Trouble with encoders
« Reply #40 on: October 03, 2016, 03:19:27 AM »
i changed the amps and the servos from callan type DC motors to modern servos, because i can´t find  amps with +- 10v input, 120v DC and 90A peak for the callan type motor..
used servos about 200€ and amps about 250€ on ebay.
« Last Edit: October 03, 2016, 03:21:05 AM by gravie »
Re: Motor tunning with CSMIO/IP-A (PID) Trouble with encoders
« Reply #41 on: October 07, 2016, 12:32:43 AM »
Will search on ebay. What is your problem ? Is  the motor constantly correcting the position?

Re: Motor tunning with CSMIO/IP-A (PID) Trouble with encoders
« Reply #42 on: October 07, 2016, 12:46:32 PM »

 Is  the motor constantly correcting the position?

no, that isn´t a problem.  this is  normal with linear scales on modern milling machines.

the problem is the precise and quick  positioning with linear scales and spindle clearance.

i think, it would works better with encoders and spindle clearance.




« Last Edit: October 07, 2016, 12:49:42 PM by gravie »
Re: Motor tunning with CSMIO/IP-A (PID) Trouble with encoders
« Reply #43 on: October 07, 2016, 01:03:38 PM »
But than you lose the precision ? Or I'm mistaken ? . h. Now i would like to know can you remove the back slash just between the servo driver and servo motor ? And than use the linear scales for feadback to the csmio?
Re: Motor tunning with CSMIO/IP-A (PID) Trouble with encoders
« Reply #44 on: October 08, 2016, 08:22:05 AM »
But than you lose the precision ? yes


Or I'm mistaken ? . h.


Now i would like to know can you remove the back slash just between the servo driver and servo motor ? And than use the linear scales for feadback to the csmio?
i use the linear scales with csmio.
the servo amp use the servo encoder signal (internal), but i can connect the csmio input to the servo amp encoder simulation output.

i receive next week 2 ball screw spindles for x and y axis and than i remove the gears and change to belts.

« Last Edit: October 08, 2016, 08:30:13 AM by gravie »
Re: Motor tunning with CSMIO/IP-A (PID) Trouble with encoders
« Reply #45 on: October 08, 2016, 10:58:43 AM »
Thanks for the answer. 
Can you tell me which belts and pulley are you going to use?

Re: Motor tunning with CSMIO/IP-A (PID) Trouble with encoders
« Reply #46 on: October 08, 2016, 12:14:04 PM »
hdt belts, 8 pitch, 25mm wide

22  tooth pulley on the servo side and 44 or 32 (y axis, no more space) tooth on the spindle side.



« Last Edit: October 08, 2016, 12:15:39 PM by gravie »
Re: Motor tunning with CSMIO/IP-A (PID) Trouble with encoders
« Reply #47 on: October 15, 2016, 10:35:13 AM »
the x and y axis  conversion kit is ready to mount.

i hope, it works...
Re: Motor tunning with CSMIO/IP-A (PID) Trouble with encoders
« Reply #48 on: October 23, 2016, 08:54:27 AM »
i switched the x and y axis now to belt-drive.
the pid tuning is much better than with  gears, but my spindle is not the best qualitiy.  
i think, with zero gap spindles it works perfekt.

https://www.machsupport.com/forum/index.php/topic,33125.msg232442.html#msg232442
Re: Motor tunning with CSMIO/IP-A (PID) Trouble with encoders
« Reply #49 on: February 08, 2017, 11:39:19 AM »
Greetings,

i have been also working on my machine these past couple of months.  To sum up what i have done so far.
I have changed  the energy chain and the linear scales. Also i have painted the whole machine. Now i have changed the operators panel
and added an cabinet for the new drivers for servomotors. For now i will stick with the gear transmission between the motor and spindle.
Will add a movie of my progress as son as i find some time.
Also the tuning is going to be a pain in the A**.


Here is also my thanks for HOOD he has helped a lot ! Thank you !


Best regards

Slovenec