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incremental encoder 10.000 RPM
« on: January 08, 2015, 07:03:22 AM »
Hello,


I can buy a second Schaublin 102 CNC lathe.

the rotational speed of the spindle is a maximum of 10.000 RPM

Can this with your incremental encoder - differential signal, TTL 5V :: 2500 p / rev :: IHU4808 and CSMIO ENC-threading module CS LAB?

Whether I use a proxy, or a Hall sensor with the I / O card CS Lab or a POKEYS57?

Thanks for thinking along

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Re: incremental encoder 10.000 RPM
« Reply #1 on: January 08, 2015, 03:45:02 PM »
The encoder you mention has a max 6000rpm from the looks of it.
Also it has a response frequency of 120KHz, that would mean a 2500 line encoder would max out at 2880rpm.

Hood

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Re: incremental encoder 10.000 RPM
« Reply #2 on: January 08, 2015, 04:16:40 PM »
Also should have said, the Enc module itself will not be an issue, the spindle on my Chiron has a max rpm of 3800 and I have an encoder output of 32,768 pulses per rev, so that is  just over 2MHz.
With a 2500 line encoder at 10,000 rpm that would be 1.6MHz.
I think the Enc module can handle at least 3MHz.

Hood
Re: incremental encoder 10.000 RPM
« Reply #3 on: January 08, 2015, 04:34:47 PM »
Hello HOOD

thx for the response
the Enc module is not a problem, but the incremental encoder - differential signal, TTL 5V :: 2500 p / r cs lab ..

I would an incremental encoder - differential signal, TTL 5V: find 10,000 RPM?

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Re: incremental encoder 10.000 RPM
« Reply #4 on: January 08, 2015, 05:38:51 PM »
Just did a Google search for 10,000rpm encoder and came up with a few. This one seems to fit the specs but it just gives a rise and fall time which if I am calculating correctly will give you a max of about 666KHz. That would mean a max of 1,000 lines (4000 ppr) at 10,000rpm  but that should be more than adequate for your needs.
http://www.usdigital.com/products/encoders/incremental/rotary/shaft/h3?specification=phase-relationship#description

If you are thinking of buying one you would be best to contact them first just to make sure I have worked things out correctly.
Hood
Re: incremental encoder 10.000 RPM
« Reply #5 on: January 08, 2015, 05:42:41 PM »
Would that work with the ENC CS LAB Module?

I'm a newbie

grtz

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Re: incremental encoder 10.000 RPM
« Reply #6 on: January 08, 2015, 05:45:46 PM »
Yes but ideally you would want to get their line driver or make one up yourself.
It is just a single ended encoder so the line driver would make it a differential signal which is preferred and what the Enc module ideally is looking for.
Hood
Re: incremental encoder 10.000 RPM
« Reply #7 on: January 08, 2015, 05:54:39 PM »
problem is that 10,000 rpm and that of CS LAB (http://www.alibaba.com/product-detail/IHU4808-48mm-8mm-2500-pulse-rotary_1977055807.html) is max 6000 RPM

CS LAB my question has not been answered yet.
I will ask at Yumo whether they have the same model but 10,000 RPM;

I'm in love with CS LAB material but do not speak English and that is a big barrier when I have a question for CS LAB and it takes several days for a response.
And have to retrofit many machines ...


bat see link  https://www.troostwijkauctions.com/nl/vertikaal-bewerkingscentrum/03-19991-226-2948115/
« Last Edit: January 08, 2015, 05:56:47 PM by FredMazak »

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Re: incremental encoder 10.000 RPM
« Reply #8 on: January 08, 2015, 06:01:28 PM »
It is likely even more of a problem because CS-Lab is Polish.

As mentioned earlier though, even if they have a 10,000rpm version you will have to also consider the response frequency. The one quoted is 120KHz so at 10,000rpm that would be a max of  720 ppr so a 180 line encoder would be your max.
Hood

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Re: incremental encoder 10.000 RPM
« Reply #9 on: January 08, 2015, 06:03:50 PM »
Have you bought that Chiron?
Hood