Re: [Emc-users] Heidenhain IBV 610 troubles

[Curtis Dutton]

I ended up finding a good deal on a Motrona si251 interpolation unit. It
was a little bit more than the IBV but not much.

It worked on the first try. Documentation was much better and overall seems
more flexible and more compact.

-Curtis


On Sun, Sep 19, 2021 at 2:18 PM John Figie  wrote:

> John Figie
>
>
> I forgot to post more details about the Hedenhain TNC 151 interpolator.
> > http://machineability.com/Bridgeport_series_II.html
> >
> > On the other hand my Bridgeport series II Interact conversion which had a
> > Heidenhain TNC seemed to have some comparators and logic to do
> > interpolation and output a higher frequency AqB signal. The interpolation
> > was not very fine, in fact it is 20 steps per 360 degrees of sin. - 5
> steps
> > per 90 degrees, fairly easy to do with comparators.
> >
> > Regards,
> >
> > John Figie
> >
> >
> >>
>
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Re: [Emc-users] Heidenhain IBV 610 troubles

[John Figie]

John Figie


I forgot to post more details about the Hedenhain TNC 151 interpolator.
> http://machineability.com/Bridgeport_series_II.html
>
> On the other hand my Bridgeport series II Interact conversion which had a
> Heidenhain TNC seemed to have some comparators and logic to do
> interpolation and output a higher frequency AqB signal. The interpolation
> was not very fine, in fact it is 20 steps per 360 degrees of sin. - 5 steps
> per 90 degrees, fairly easy to do with comparators.
>
> Regards,
>
> John Figie
>
>
>>

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Re: [Emc-users] Heidenhain IBV 610 troubles

[John Figie]

I agree with Eric, Many Sin - Cos encoders like SICK and Heidenhain output
a DC reference voltage on the A- and B- signals and only the A+ and B+
actually change around the reference. Some encoders like Kubler I think
have true complementary differential outputs. In either case the
differential amplifier that receives the signals should be able to handle
either case.  I know this from first hand engineering experience with
interfacing Sin Cos encoders to the industrial servo drives I helped
develop for my former employer.

I do not know anything about what is inside the Heidenhain interpolation
box. What we did was use ADCs and FPGA logic to do the sin - cos
interpolation. The method we used was to first convert the sin and cos to
the tangent which is the ratio of sin/cos then use arc tangent lookup. By
using the tangent any amplitude changes from cable lengths or other common
factors will cancel. It is assumed that the sin and cos inputs are both
affected equally. Of course there is more to it because the tan function
does not behave well for all angles, it goes to infinity as angle
approaches 90 and 270 so you need to know what octant the encoder is in and
also use the cotangent.

On the other hand my Bridgeport series II Interact conversion which had a
Heidenhain TNC seemed to have some comparators and logic to do
interpolation and output a higher frequency AqB signal. The interpolation
was not very fine, in fact it is 20 steps per 360 degrees of sin. - 5 steps
per 90 degrees, fairly easy to do with comparators.

Regards,

John Figie


On Sun, Sep 19, 2021 at 11:25 AM Eric Keller  wrote:

> I don't think that's true that they have to be compliments.  There probably
> is a way to adjust the levels like I mentioned in my previous email. Is the
> manual online, or did you just get a paper copy? I wonder if it's an issue
> with the signals not being +/- with respect to ground. Is it a Heidenhein
> encoder?
> Eric Keller
> Boalsburg, Pennsylvania
>
> On Sun, Sep 19, 2021 at 11:50 AM Curtis Dutton  wrote:
>
> > Ok after thinking about it more, the interpolate is expecting that the
> > incoming sin/cos signals a,a* are actual inverse values. however this
> > encoder is single ended, it just has a and b signals. the a* and b*
> signals
> > are a sort of reference voltage and never change. I'll experiment with it
> > some more tomorrow
> >
> >
> > On Sun, Sep 19, 2021, 12:55 AM Curtis Dutton  wrote:
> >
> > > It is an incremental. Magnetic sensor. Gear tooth with I think 256
> teeth.
> > > One sin/cos cycle per tooth.
> > >
> > > On Sat, Sep 18, 2021, 10:56 PM Ralph Stirling <
> > > ralph.stirl...@wallawalla.edu> wrote:
> > >
> > >> A lot of very high resolution, and older encoders have
> > >> sine wave gratings, which give sine and cosine waveforms
> > >> on the A and B channels.  These are connected to an
> > >> interpolator box that contains A/D converters and logic
> > >> to generate quadrature pulses.  The higher the interpolation
> > >> ratio, the lower the max velocity allowed.
> > >>
> > >> -- Ralph
> > >> 
> > >> From: Gene Heskett [ghesk...@shentel.net]
> > >> Sent: Saturday, September 18, 2021 5:22 PM
> > >> To: emc-users@lists.sourceforge.net
> > >> Subject: Re: [Emc-users] Heidenhain IBV 610 troubles
> > >>
> > >> I don't think you have an encoder, but a resolver. If you are getting
> > one
> > >> sinesoid per full turn, its a resolver.
> > >>
> > >> > Anyhow it doesn't work and I'm not sure how to troubleshoot the
> black
> > >> > box. I have the manuals and I have tried various combinations of the
> > >> > dip swithches inside.
> > >> >
> > >> > does anyone have any troubleshooting tips or stories about their use
> > >> > of an interpolater box?
> > >> >
> > >> >
> > >> > Thanks,
> > >> >Curt
> > >> >
> > >> > ___
> > >> > Emc-users mailing list
> > >> > Emc-users@lists.sourceforge.net
> > >> >
> > >>
> >
> https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.sourceforge.net%2Flists%2Flistinfo%2Femc-usersdata=04%7C01%7Cralph.stirling%40wallawalla.edu%7C5a5b014bf3fc4481176208d97b03a93b%7Cd958f048e43142779c8debfb75e7aa64%7C0%7C1%7C637676077932698528%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000sdata=sowEIC7aWNESysLAlCjxOMk84Inwx9

Re: [Emc-users] Heidenhain IBV 610 troubles

[Curtis Dutton]

I have found a manual online. It is a fanuc encoder on the top of a spindle
motor.

I don't seee any trim pots inside the box. Just 5 jumpers.


1is it for 90 or 270 deg for reference.
2nd is high or low impedence input. (not sure what this does)

3-5 is interpolation amount (5x vs 10x) and output frequency settings.



On Sun, Sep 19, 2021, 12:25 PM Eric Keller  wrote:

> I don't think that's true that they have to be compliments.  There probably
> is a way to adjust the levels like I mentioned in my previous email. Is the
> manual online, or did you just get a paper copy? I wonder if it's an issue
> with the signals not being +/- with respect to ground. Is it a Heidenhein
> encoder?
> Eric Keller
> Boalsburg, Pennsylvania
>
> On Sun, Sep 19, 2021 at 11:50 AM Curtis Dutton  wrote:
>
> > Ok after thinking about it more, the interpolate is expecting that the
> > incoming sin/cos signals a,a* are actual inverse values. however this
> > encoder is single ended, it just has a and b signals. the a* and b*
> signals
> > are a sort of reference voltage and never change. I'll experiment with it
> > some more tomorrow
> >
> >
> > On Sun, Sep 19, 2021, 12:55 AM Curtis Dutton  wrote:
> >
> > > It is an incremental. Magnetic sensor. Gear tooth with I think 256
> teeth.
> > > One sin/cos cycle per tooth.
> > >
> > > On Sat, Sep 18, 2021, 10:56 PM Ralph Stirling <
> > > ralph.stirl...@wallawalla.edu> wrote:
> > >
> > >> A lot of very high resolution, and older encoders have
> > >> sine wave gratings, which give sine and cosine waveforms
> > >> on the A and B channels.  These are connected to an
> > >> interpolator box that contains A/D converters and logic
> > >> to generate quadrature pulses.  The higher the interpolation
> > >> ratio, the lower the max velocity allowed.
> > >>
> > >> -- Ralph
> > >> 
> > >> From: Gene Heskett [ghesk...@shentel.net]
> > >> Sent: Saturday, September 18, 2021 5:22 PM
> > >> To: emc-users@lists.sourceforge.net
> > >> Subject: Re: [Emc-users] Heidenhain IBV 610 troubles
> > >>
> > >> I don't think you have an encoder, but a resolver. If you are getting
> > one
> > >> sinesoid per full turn, its a resolver.
> > >>
> > >> > Anyhow it doesn't work and I'm not sure how to troubleshoot the
> black
> > >> > box. I have the manuals and I have tried various combinations of the
> > >> > dip swithches inside.
> > >> >
> > >> > does anyone have any troubleshooting tips or stories about their use
> > >> > of an interpolater box?
> > >> >
> > >> >
> > >> > Thanks,
> > >> >Curt
> > >> >
> > >> > ___
> > >> > Emc-users mailing list
> > >> > Emc-users@lists.sourceforge.net
> > >> >
> > >>
> >
> https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.sourceforge.net%2Flists%2Flistinfo%2Femc-usersdata=04%7C01%7Cralph.stirling%40wallawalla.edu%7C5a5b014bf3fc4481176208d97b03a93b%7Cd958f048e43142779c8debfb75e7aa64%7C0%7C1%7C637676077932698528%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000sdata=sowEIC7aWNESysLAlCjxOMk84Inwx9pFjz4IRVk6vIo%3Dreserved=0
> > >>
> > >>
> > >> Cheers, Gene Heskett
> > >> --
> > >> "There are four boxes to be used in defense of liberty:
> > >>  soap, ballot, jury, and ammo. Please use in that order."
> > >> -Ed Howdershelt (Author)
> > >> If we desire respect for the law, we must first make the law
> > respectable.
> > >>  - Louis D. Brandeis
> > >> Genes Web page <
> > >>
> >
> https://nam12.safelinks.protection.outlook.com/?url=http%3A%2F%2Fgeneslinuxbox.net%3A6309%2Fgenedata=04%7C01%7Cralph.stirling%40wallawalla.edu%7C5a5b014bf3fc4481176208d97b03a93b%7Cd958f048e43142779c8debfb75e7aa64%7C0%7C1%7C637676077932698528%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000sdata=HxeTFPS47gukrRBopVJJ939Wg4sEwHPPRremv092Uy0%3Dreserved=0
> > >> >
> > >>
> > >>
> > >> ___
> > >> Emc-users mailing list
> > >> Emc-users@lists.sourceforge.net
> > >> https://lists.sourceforge.net/lists/listinfo/emc-users
> > >>
> > >
> >
> > ___
> > Emc-users mailing list
> > Emc-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/emc-users
> >
>
> ___
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> https://lists.sourceforge.net/lists/listinfo/emc-users
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Re: [Emc-users] Heidenhain IBV 610 troubles

[Eric Keller]

I don't think that's true that they have to be compliments.  There probably
is a way to adjust the levels like I mentioned in my previous email. Is the
manual online, or did you just get a paper copy? I wonder if it's an issue
with the signals not being +/- with respect to ground. Is it a Heidenhein
encoder?
Eric Keller
Boalsburg, Pennsylvania

On Sun, Sep 19, 2021 at 11:50 AM Curtis Dutton  wrote:

> Ok after thinking about it more, the interpolate is expecting that the
> incoming sin/cos signals a,a* are actual inverse values. however this
> encoder is single ended, it just has a and b signals. the a* and b* signals
> are a sort of reference voltage and never change. I'll experiment with it
> some more tomorrow
>
>
> On Sun, Sep 19, 2021, 12:55 AM Curtis Dutton  wrote:
>
> > It is an incremental. Magnetic sensor. Gear tooth with I think 256 teeth.
> > One sin/cos cycle per tooth.
> >
> > On Sat, Sep 18, 2021, 10:56 PM Ralph Stirling <
> > ralph.stirl...@wallawalla.edu> wrote:
> >
> >> A lot of very high resolution, and older encoders have
> >> sine wave gratings, which give sine and cosine waveforms
> >> on the A and B channels.  These are connected to an
> >> interpolator box that contains A/D converters and logic
> >> to generate quadrature pulses.  The higher the interpolation
> >> ratio, the lower the max velocity allowed.
> >>
> >> -- Ralph
> >> 
> >> From: Gene Heskett [ghesk...@shentel.net]
> >> Sent: Saturday, September 18, 2021 5:22 PM
> >> To: emc-users@lists.sourceforge.net
> >> Subject: Re: [Emc-users] Heidenhain IBV 610 troubles
> >>
> >> I don't think you have an encoder, but a resolver. If you are getting
> one
> >> sinesoid per full turn, its a resolver.
> >>
> >> > Anyhow it doesn't work and I'm not sure how to troubleshoot the black
> >> > box. I have the manuals and I have tried various combinations of the
> >> > dip swithches inside.
> >> >
> >> > does anyone have any troubleshooting tips or stories about their use
> >> > of an interpolater box?
> >> >
> >> >
> >> > Thanks,
> >> >Curt
> >> >
> >> > ___
> >> > Emc-users mailing list
> >> > Emc-users@lists.sourceforge.net
> >> >
> >>
> https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.sourceforge.net%2Flists%2Flistinfo%2Femc-usersdata=04%7C01%7Cralph.stirling%40wallawalla.edu%7C5a5b014bf3fc4481176208d97b03a93b%7Cd958f048e43142779c8debfb75e7aa64%7C0%7C1%7C637676077932698528%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000sdata=sowEIC7aWNESysLAlCjxOMk84Inwx9pFjz4IRVk6vIo%3Dreserved=0
> >>
> >>
> >> Cheers, Gene Heskett
> >> --
> >> "There are four boxes to be used in defense of liberty:
> >>  soap, ballot, jury, and ammo. Please use in that order."
> >> -Ed Howdershelt (Author)
> >> If we desire respect for the law, we must first make the law
> respectable.
> >>  - Louis D. Brandeis
> >> Genes Web page <
> >>
> https://nam12.safelinks.protection.outlook.com/?url=http%3A%2F%2Fgeneslinuxbox.net%3A6309%2Fgenedata=04%7C01%7Cralph.stirling%40wallawalla.edu%7C5a5b014bf3fc4481176208d97b03a93b%7Cd958f048e43142779c8debfb75e7aa64%7C0%7C1%7C637676077932698528%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000sdata=HxeTFPS47gukrRBopVJJ939Wg4sEwHPPRremv092Uy0%3Dreserved=0
> >> >
> >>
> >>
> >> ___
> >> Emc-users mailing list
> >> Emc-users@lists.sourceforge.net
> >> https://lists.sourceforge.net/lists/listinfo/emc-users
> >>
> >
>
> ___
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>

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Re: [Emc-users] Heidenhain IBV 610 troubles

[Curtis Dutton]

Ok after thinking about it more, the interpolate is expecting that the
incoming sin/cos signals a,a* are actual inverse values. however this
encoder is single ended, it just has a and b signals. the a* and b* signals
are a sort of reference voltage and never change. I'll experiment with it
some more tomorrow


On Sun, Sep 19, 2021, 12:55 AM Curtis Dutton  wrote:

> It is an incremental. Magnetic sensor. Gear tooth with I think 256 teeth.
> One sin/cos cycle per tooth.
>
> On Sat, Sep 18, 2021, 10:56 PM Ralph Stirling <
> ralph.stirl...@wallawalla.edu> wrote:
>
>> A lot of very high resolution, and older encoders have
>> sine wave gratings, which give sine and cosine waveforms
>> on the A and B channels.  These are connected to an
>> interpolator box that contains A/D converters and logic
>> to generate quadrature pulses.  The higher the interpolation
>> ratio, the lower the max velocity allowed.
>>
>> -- Ralph
>> 
>> From: Gene Heskett [ghesk...@shentel.net]
>> Sent: Saturday, September 18, 2021 5:22 PM
>> To: emc-users@lists.sourceforge.net
>> Subject: Re: [Emc-users] Heidenhain IBV 610 troubles
>>
>> I don't think you have an encoder, but a resolver. If you are getting one
>> sinesoid per full turn, its a resolver.
>>
>> > Anyhow it doesn't work and I'm not sure how to troubleshoot the black
>> > box. I have the manuals and I have tried various combinations of the
>> > dip swithches inside.
>> >
>> > does anyone have any troubleshooting tips or stories about their use
>> > of an interpolater box?
>> >
>> >
>> > Thanks,
>> >Curt
>> >
>> > ___
>> > Emc-users mailing list
>> > Emc-users@lists.sourceforge.net
>> >
>> https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.sourceforge.net%2Flists%2Flistinfo%2Femc-usersdata=04%7C01%7Cralph.stirling%40wallawalla.edu%7C5a5b014bf3fc4481176208d97b03a93b%7Cd958f048e43142779c8debfb75e7aa64%7C0%7C1%7C637676077932698528%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000sdata=sowEIC7aWNESysLAlCjxOMk84Inwx9pFjz4IRVk6vIo%3Dreserved=0
>>
>>
>> Cheers, Gene Heskett
>> --
>> "There are four boxes to be used in defense of liberty:
>>  soap, ballot, jury, and ammo. Please use in that order."
>> -Ed Howdershelt (Author)
>> If we desire respect for the law, we must first make the law respectable.
>>  - Louis D. Brandeis
>> Genes Web page <
>> https://nam12.safelinks.protection.outlook.com/?url=http%3A%2F%2Fgeneslinuxbox.net%3A6309%2Fgenedata=04%7C01%7Cralph.stirling%40wallawalla.edu%7C5a5b014bf3fc4481176208d97b03a93b%7Cd958f048e43142779c8debfb75e7aa64%7C0%7C1%7C637676077932698528%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000sdata=HxeTFPS47gukrRBopVJJ939Wg4sEwHPPRremv092Uy0%3Dreserved=0
>> >
>>
>>
>> ___
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>> Emc-users@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/emc-users
>>
>

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Re: [Emc-users] Heidenhain IBV 610 troubles

[Curtis Dutton]

It is an incremental. Magnetic sensor. Gear tooth with I think 256 teeth.
One sin/cos cycle per tooth.

On Sat, Sep 18, 2021, 10:56 PM Ralph Stirling 
wrote:

> A lot of very high resolution, and older encoders have
> sine wave gratings, which give sine and cosine waveforms
> on the A and B channels.  These are connected to an
> interpolator box that contains A/D converters and logic
> to generate quadrature pulses.  The higher the interpolation
> ratio, the lower the max velocity allowed.
>
> -- Ralph
> 
> From: Gene Heskett [ghesk...@shentel.net]
> Sent: Saturday, September 18, 2021 5:22 PM
> To: emc-users@lists.sourceforge.net
> Subject: Re: [Emc-users] Heidenhain IBV 610 troubles
>
> I don't think you have an encoder, but a resolver. If you are getting one
> sinesoid per full turn, its a resolver.
>
> > Anyhow it doesn't work and I'm not sure how to troubleshoot the black
> > box. I have the manuals and I have tried various combinations of the
> > dip swithches inside.
> >
> > does anyone have any troubleshooting tips or stories about their use
> > of an interpolater box?
> >
> >
> > Thanks,
> >Curt
> >
> > ___
> > Emc-users mailing list
> > Emc-users@lists.sourceforge.net
> >
> https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.sourceforge.net%2Flists%2Flistinfo%2Femc-usersdata=04%7C01%7Cralph.stirling%40wallawalla.edu%7C5a5b014bf3fc4481176208d97b03a93b%7Cd958f048e43142779c8debfb75e7aa64%7C0%7C1%7C637676077932698528%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000sdata=sowEIC7aWNESysLAlCjxOMk84Inwx9pFjz4IRVk6vIo%3Dreserved=0
>
>
> Cheers, Gene Heskett
> --
> "There are four boxes to be used in defense of liberty:
>  soap, ballot, jury, and ammo. Please use in that order."
> -Ed Howdershelt (Author)
> If we desire respect for the law, we must first make the law respectable.
>  - Louis D. Brandeis
> Genes Web page <
> https://nam12.safelinks.protection.outlook.com/?url=http%3A%2F%2Fgeneslinuxbox.net%3A6309%2Fgenedata=04%7C01%7Cralph.stirling%40wallawalla.edu%7C5a5b014bf3fc4481176208d97b03a93b%7Cd958f048e43142779c8debfb75e7aa64%7C0%7C1%7C637676077932698528%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000sdata=HxeTFPS47gukrRBopVJJ939Wg4sEwHPPRremv092Uy0%3Dreserved=0
> >
>
>
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> https://lists.sourceforge.net/lists/listinfo/emc-users
>

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Re: [Emc-users] Heidenhain IBV 610 troubles

[Ralph Stirling]

A lot of very high resolution, and older encoders have
sine wave gratings, which give sine and cosine waveforms
on the A and B channels.  These are connected to an
interpolator box that contains A/D converters and logic
to generate quadrature pulses.  The higher the interpolation
ratio, the lower the max velocity allowed.

-- Ralph

From: Gene Heskett [ghesk...@shentel.net]
Sent: Saturday, September 18, 2021 5:22 PM
To: emc-users@lists.sourceforge.net
Subject: Re: [Emc-users] Heidenhain IBV 610 troubles

I don't think you have an encoder, but a resolver. If you are getting one
sinesoid per full turn, its a resolver.

> Anyhow it doesn't work and I'm not sure how to troubleshoot the black
> box. I have the manuals and I have tried various combinations of the
> dip swithches inside.
>
> does anyone have any troubleshooting tips or stories about their use
> of an interpolater box?
>
>
> Thanks,
>Curt
>
> ___
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Cheers, Gene Heskett
--
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
If we desire respect for the law, we must first make the law respectable.
 - Louis D. Brandeis
Genes Web page 
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Re: [Emc-users] Heidenhain IBV 610 troubles

[Eric Keller]

I didn't see the manual online.  Some of their older boxes had
potentiometer adjustments internally so that the signal would be
recognized. We had a cnc machine where if one of the axes went out, the fix
was to fiddle with the pots. Otherwise, I have very little knowledge about
them.
Eric Keller
Boalsburg, Pennsylvania


On Sat, Sep 18, 2021 at 7:42 PM Curtis Dutton  wrote:

> So I have a fanuc spindle motor with an MZ hall effect encoder on it.
>
> I'm attempting to interface that via an IBV 610 to a quadrature encoder.
>
> I have no experience with these and I'm trying to figure out what is going
> wrong.
>
> The encoder runs on 5v and has A,A* and B,B* signals.
>
> the a*,b* pins output a refernace voltage of 2.5v. The a and B pins vary
> sinusoidally from 2.2v to 2.8 v. If you measure across a to a* (or b to b*)
> you get -.3v to .3v.
>
> I think that this is what is called a 1vpp signal. (am I wrong?)
>
> Anyhow I hooked up all of the signals from encoder to ibv box through to
> the quadrature encoder input. I have double checked all pins, power is
> being delivered to everything and the sinusiod signals are getting back to
> the interpolate box.
>
> Anyhow it doesn't work and I'm not sure how to troubleshoot the black box.
> I have the manuals and I have tried various combinations of the dip
> swithches inside.
>
> does anyone have any troubleshooting tips or stories about their use of an
> interpolater box?
>
>
> Thanks,
>Curt
>
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Re: [Emc-users] Heidenhain IBV 610 troubles

[Gene Heskett]

On Saturday 18 September 2021 19:40:02 Curtis Dutton wrote:

> So I have a fanuc spindle motor with an MZ hall effect encoder on it.
>
> I'm attempting to interface that via an IBV 610 to a quadrature
> encoder.
>
> I have no experience with these and I'm trying to figure out what is
> going wrong.
>
> The encoder runs on 5v and has A,A* and B,B* signals.
>
> the a*,b* pins output a refernace voltage of 2.5v. The a and B pins
> vary sinusoidally from 2.2v to 2.8 v. If you measure across a to a*
> (or b to b*) you get -.3v to .3v.
>
> I think that this is what is called a 1vpp signal. (am I wrong?)
>
> Anyhow I hooked up all of the signals from encoder to ibv box through
> to the quadrature encoder input. I have double checked all pins, power
> is being delivered to everything and the sinusiod signals are getting
> back to the interpolate box.
>
I don't think you have an encoder, but a resolver. If you are getting one 
sinesoid per full turn, its a resolver.

> Anyhow it doesn't work and I'm not sure how to troubleshoot the black
> box. I have the manuals and I have tried various combinations of the
> dip swithches inside.
>
> does anyone have any troubleshooting tips or stories about their use
> of an interpolater box?
>
>
> Thanks,
>Curt
>
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Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
If we desire respect for the law, we must first make the law respectable.
 - Louis D. Brandeis
Genes Web page 


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