Machsupport Forum
Third party software and hardware support forums. => CS-Lab => Topic started by: FredMazak on January 08, 2015, 07:03:22 AM
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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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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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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
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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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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
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Would that work with the ENC CS LAB Module?
I'm a newbie
grtz
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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
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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/
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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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Have you bought that Chiron?
Hood
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Hello HOOD
Unfortunately not - no money ...
especially those used mazak, emco, Schaublin, celtic
but I knew you had a chiron;-)
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Ha ha I think we all suffer from the lack of money problem ;)
Hood
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I have no more room for additional equipment
First retrofitting the existing machines
you can help me with the settings for that encoder 10000 RPM
thanks in advance
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If you email US Digital and ask them what cpr their encoder can have at 10,000rpm.
As I said I think it will be 1000cpr (4000 pulses for Mach) that will be the max but best check with them.
Hood
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have you faster access to cs lab?
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No, afraid not.
Hood
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too bad,
I thought you had direct contact with the president
grtz
fred
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LOL
I wouldn't talk to him, I have no respect for elites ;)
Hood
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ROGER :o
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Could you gear down the encoder /2 to make it work ??
Just a thought, (;-) TP
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there I even thought about but do not know how to set that than in Mach3? Pulley 1/2 ??
grtz
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Afraid not, the CS-Lab products use full encoder for lathe threading and it needs to be 1:1.
On the small lathe I had a servo motor geared 2:1 and I used the motors encoder for feedback to the Enc module, I however scaled the encoder output in the drive so that there was still one Index per rev.
Hood
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HOWEVER I scaled the encoder output in the drive so thatthere was still one index per rev.
Is that not the solution? But how do you scale that up?
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ups, error of me> servomotor
I use a rotary engine with a freq regulator
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Only if you have a servo motor and drive for the spindle and only if the drive is capable of dividing buffered encoder outputs.
Hood
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@ Hood,
Indeed, in a servomotor, but I was wrong
The CS LAB encoder which only need to thread? I would that encoder mechanical / pneumatic can switch in and out so that it does not work at + 6000 rpm.
So then I could run up to 10000 rpm, and threading with an enabled encoder.
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The other issue would be when using G95, as is normal in lathe work. You would not get a spindle reading and thus your feed per rev would be incorrect.
Hood
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@ Hood,
I will assemble the 6K encoder until I found a full 10K rpm encoder or someone can help me ...
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Why not ask about the one I linked to?
It is 10,000rpm.
Hood
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@ Hood,
sorry I do not understand you now
So you have an encoder already linked to a 10K rpm spindle?
Sorry for my bad english> google translate
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http://www.usdigital.com/products/encoders/incremental/rotary/shaft/h3?specification=phase-relationship#description
But as I said if I calculated things correctly then the max line count you could use is 1000 (4000 pulses per rev)
Hood
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@ Hood,
That become an expensive encoder USA shipping + tax
but ok if it will work
1- Can that be so directly linked to the ENC or should there be some extra geprogammeerd?
2- That 5V supply is that of the ENC or is that a separate power supply?
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Just a thought but only the index signal needs to be one per rev for the thread start point The Controller would have no idea that the encoder was geared to the spindle as only the count per rev would change with gearing.
10,000 /2 = 5000 rpm at the encoder.
Add a seperate indexer signal on the spindle. One per rev.
(;-) TP
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Dear,
Must work with ENC http://www.cs-lab.eu/en/produkt-11,2-CSMIOENC_threading_module.html
and / encoder 10K rpm
of cs lab 6K rpm see linkhttp://www.cs-lab.eu/en/produkt-19,4-Incremental_rotary_encoder___differential_signal_TTL_5V__2500_prev__IHU4808.html
You can always send me a concrete wiring diagram
grtz
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1- Can that be so directly linked to the ENC or should there be some extra geprogammeerd?
Ideally you also want a line driver. US digital sells them or you could make your own circuit up.
2- That 5V supply is that of the ENC or is that a separate power supply?
You would use the 5V and 0V connections on the Enc module to power the encoder.
Hood
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Ideally you want a line driver. American Digital sells
@Hood Link you can send those line driver
thx
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http://www.usdigital.com/products/pc5
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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
Hi, you say ENC module can handle at least 3MHz.
Can't seem to find this information. How do you know this?
Grtz.
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Wojtek said in response to a question I had, well actually just looked back my emails and it was with regards the Encoder inputs of the IP-A. I would presume however that the Enc module would be the same.
Here is what Wojtek said
Max. encoder input frequency for CSMIO/IP is 3Mhz.
Regards
Wojtek Trawicki
Hood