KFLOP with linear encoder

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TomKerekes
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Re: KFLOP with linear encoder

Post by TomKerekes » Wed Feb 05, 2020 9:00 pm

You didn't use the Save Data Button and attach the .txt file here.
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Tom Kerekes
Dynomotion, Inc.

Igor
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Re: KFLOP with linear encoder

Post by Igor » Wed Feb 05, 2020 9:13 pm

these data?
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bode test.txt
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test.txt
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Igor
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Re: KFLOP with linear encoder

Post by Igor » Wed Feb 05, 2020 10:57 pm

About sliding gam discoveries of the wonderful.
prepares educations spirit.
And experience son is wrong difficult
And the genius of paradoxes friend
A.S Pushkin

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TomKerekes
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Re: KFLOP with linear encoder

Post by TomKerekes » Thu Feb 06, 2020 12:45 am

Hi Igor,

Yes test.txt is the Step Response Data we have been asking for.

Below is a plot of the error while moving.

Note the maximum error is 50 x 3.84 = 192um (red)
Corrections of 90 x 3.84 = 345um are being made (green)
Final Error is zero (blue)

Error.png

Do you understand this? Please describe what you understand.

Now set P = I = D = 0 and plot the error with out any correction from the scales.


I like this translation better :)

Oh, so lots of revelations
Gives us the Spirit of Enlightenment
And skill that's born from faults and hardship,
And genius - friend of paradox,
And chance - the god of all inventions...
Regards,

Tom Kerekes
Dynomotion, Inc.

Igor
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Re: KFLOP with linear encoder

Post by Igor » Thu Feb 06, 2020 5:35 pm

Good afternoon Tom, I don 't quite understand the idea you 're trying to convey to me. But that the blue line should be at zero?
Too large between 192 and 345. Should these values ideally be the same?
Attachments
test00011.JPG
0.0201.JPG

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TomKerekes
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Re: KFLOP with linear encoder

Post by TomKerekes » Fri Feb 07, 2020 1:59 am

Hi Igor,
But that the blue line should be at zero?
It is at zero. The blue line/arrow shows at the end of the move the error is zero. Which is good. Or did you mean the blue plot not the blue line? Please use more words in your responses to be more clear.

Too large between 192 and 345. Should these values ideally be the same?
No. The 192um error should be reduced as much as possible. Your new plot with I=0.0201 has the error reduced to 12 steps * 3.84um/step = 46um

Note 0.0201 is essentially the same as 0.02. So it is sort of silly to use 0.0201.

The Output (green) is the amount being corrected. That should be whatever is necessary to correct the mechanics (leadscrew, backlash, stepper error, etc...)

Again you didn't attach the data.

You ignored my request to set P=I=D=0. The idea is to see the errors of your mechanics with no corrections of the linear scales. Only use the scales for measurements of the open loop system.
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Tom Kerekes
Dynomotion, Inc.

Igor
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Re: KFLOP with linear encoder

Post by Igor » Fri Feb 07, 2020 10:33 am

Good afternoon Tom. I 'm starting to understand you a little. Why I 'm not many words, because I don 't know how much I 'm right to pharmaceutical my thoughts. This is the first time I have encountered such difficulties. And thank you very much for taking the time to explain to me foolishly. Complicated hangings with a simple legible tongue. I will still have questions for you but geo-reviews,
And with the team G43 - I didn t decide to the end.
I don 't have a tool car change. And the departure of the mill is calculated by the postprocessor. But this we will discuss at another time)
You can judge which type of converter I choose.
1 - https://aliexpress.ru/item/32436865218. ... b201603_53
2- https://aliexpress.ru/item/32995400915. ... EHdPn&mp=1
Attachments
STOK.JPG
Lesson1.JPG
Lesson1.txt
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TomKerekes
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Re: KFLOP with linear encoder

Post by TomKerekes » Fri Feb 07, 2020 5:40 pm

Hi Igor,

Are you using Google Translate? Usually it does much better translations. I don't understand most of what you said.

Ok. The first plot is the open loop errors. +/-10 steps when stopped +/- 110 steps when moving.

I don't know why you set max limit output to only 3 steps. We need to correct ~120 steps of error.

Why do you refer to resistors? What is A and B?

Limit3.png


#2 should work as a differential receiver. You probably don't need the Z index pulse.

SICT-102.png
Regards,

Tom Kerekes
Dynomotion, Inc.

Igor
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Re: KFLOP with linear encoder

Post by Igor » Fri Feb 07, 2020 5:52 pm

Yes I use an interpreter, English is not my native language. And B channels of encoder output. I put up an exhibition. To see what happens. And I see a phase skew. And I want to know how to fix it. I will try to order a converter from your link. They only have RJ45 on sale?

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Re: KFLOP with linear encoder

Post by TomKerekes » Fri Feb 07, 2020 6:19 pm

I don't understand. A and B encoder signals have nothing to do with the plot of the Output.

Try using Google Translate. Type a complete explanation in Russian then translate it.
Regards,

Tom Kerekes
Dynomotion, Inc.

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