Hi Brad,
The Yaskawa manual actually has terminals for A, B, and C differential outputs. Page 29 describes the C "phase" as an "origin pulse" (I've seen the letter I or Z used before but never C). So I believe this is equivalent to a once per revolution Index pulse.
Kanalog has 16 differential inputs that are wired to 8 A/B hardware encoder quadrature counters. If you don't have 8 encoders the unused differential inputs can be used as Index pulse inputs. Index pulses are handled in software so any spare input can be used. If no differential inputs are available a single ended spare input might also be used by just using the + signal leaving the - signal open, but of course there will be less noise immunity.
Regards
TK
| Group: DynoMotion |
Message: 4650 |
From: Brad Murry |
Date: 4/25/2012 |
| Subject: Re: Yaskawa Legend Servo Amp to Kanalog |
Hello Tom, I am checking with Yaskawa to see if the C is required. If it is, how would I go about (handling it in software)? -Brad Murry From: DynoMotion@yahoogroups.com [mailto:DynoMotion@yahoogroups.com] On Behalf Of Tom Kerekes
Sent: Monday, April 23, 2012 6:08 PM
To: DynoMotion@yahoogroups.com
Subject: Re: [DynoMotion] Yaskawa Legend Servo Amp to Kanalog The Yaskawa manual actually has terminals for A, B, and C differential outputs. Page 29 describes the C "phase" as an "origin pulse" (I've seen the letter I or Z used before but never C). So I believe this is equivalent to a once per revolution Index pulse. Kanalog has 16 differential inputs that are wired to 8 A/B hardware encoder quadrature counters. If you don't have 8 encoders the unused differential inputs can be used as Index pulse inputs. Index pulses are handled in software so any spare input can be used. If no differential inputs are available a single ended spare input might also be used by just using the + signal leaving the - signal open, but of course there will be less noise immunity. Hello Tom,
I am looking to connect a SGDG-10GT Yaskawa Legend series servo pak to the kflop via an kanalog board.
I have perused your documentation but have not yet stumbled on to what I am after.
The we typically connect this drive to a controller that has a+a- b+b- and i+ i-.
I only see references for channels a and b for kanalog, do you have any thoughts for using the Yaskawa's I channels?
see page 28 of this manual::
http://www.yaskawa.com/site/dmservo.nsf/link2/TKUR-5PHSY9/$file/LEGENDUsersVersionF.pdf
Thanks for any assistance.
-Brad |
|
| Group: DynoMotion |
Message: 4651 |
From: Tom Kerekes |
Date: 4/25/2012 |
| Subject: Re: Yaskawa Legend Servo Amp to Kanalog |
Hi Brad,
No it wouldn't be required by the drive. That is an output (sort of like a status output). The drive may well need the signal internally to do commutation or whatever but they wouldn't care whether what they send out was used or not.
This is exactly what Bengt is trying to do in the other thread which is to be able to do more precise homing. The home routine would first jog until it detects a home switch. The home switch doesn't need to be very accurate as it only needs to put us within one specific rev of the lead screw. Then we would start jogging slowly until we detect the Index pulse, then stop. Since KFLOP User programs execute a timeslice every 180us the Index pulse must be longer than 180us to be reliably detected. This is not usually a problem.
Regards
TK
| Group: DynoMotion |
Message: 4652 |
From: Fouijar |
Date: 4/25/2012 |
| Subject: Re: Yaskawa Legend Servo Amp to Kanalog |
Hi Brad,
What is the control method you intend to use, analog or step/dir?
I personally use servo drives and have a similar encoder configuration, A+A-;B+B-;C+C- these two are used as reference (0 point).
I get the feedback signal from the drive to the Kanalog but there's no direct interaction since "it's only feedback".
I checked your drive's manual and it's basically the same scheme as mine, so you may use my configuration file and adapt to suit your process.
Maybe I missed the point you are focused on but to me there's no need to control from encoder point of view.
Regards,
Jerome
--- In DynoMotion@yahoogroups.com, Brad Murry <bradodarb@...> wrote:
>
> Hello Tom,
>
>
>
> I am checking with Yaskawa to see if the C is required.
>
>
>
> If it is, how would I go about (handling it in software)?
>
>
>
> -Brad Murry
>
>
>
> From: DynoMotion@yahoogroups.com [mailto:DynoMotion@yahoogroups.com] On Behalf Of Tom Kerekes
> Sent: Monday, April 23, 2012 6:08 PM
> To: DynoMotion@yahoogroups.com
> Subject: Re: [DynoMotion] Yaskawa Legend Servo Amp to Kanalog
>
>
>
>
>
> Hi Brad,
>
>
>
> The Yaskawa manual actually has terminals for A, B, and C differential outputs. Page 29 describes the C "phase" as an "origin pulse" (I've seen the letter I or Z used before but never C). So I believe this is equivalent to a once per revolution Index pulse.
>
>
>
> Kanalog has 16 differential inputs that are wired to 8 A/B hardware encoder quadrature counters. If you don't have 8 encoders the unused differential inputs can be used as Index pulse inputs. Index pulses are handled in software so any spare input can be used. If no differential inputs are available a single ended spare input might also be used by just using the + signal leaving the - signal open, but of course there will be less noise immunity.
>
>
>
> Regards
>
> TK
>
>
>
> From: bradodarb <bradodarb@...>
> To: DynoMotion@yahoogroups.com
> Sent: Monday, April 23, 2012 5:24 PM
> Subject: [DynoMotion] Yaskawa Legend Servo Amp to Kanalog
>
>
>
>
>
> Hello Tom,
>
> I am looking to connect a SGDG-10GT Yaskawa Legend series servo pak to the kflop via an kanalog board.
>
> I have perused your documentation but have not yet stumbled on to what I am after.
>
> The we typically connect this drive to a controller that has a+a- b+b- and i+ i-.
>
> I only see references for channels a and b for kanalog, do you have any thoughts for using the Yaskawa's I channels?
>
> see page 28 of this manual::
> http://www.yaskawa.com/site/dmservo.nsf/link2/TKUR-5PHSY9/$file/LEGENDUsersVersionF.pdf
>
> Thanks for any assistance.
> -Brad
> |
|
| Group: DynoMotion |
Message: 4654 |
From: Brad Murry |
Date: 4/25/2012 |
| Subject: Re: Yaskawa Legend Servo Amp to Kanalog |
Hello Tom, I guess I should have read the manual a bit further… I did not read it as an index pulse, saw AB on Kanalog and then ABC on Legend and freaked! I think my experience using controllers with high-level functionality like built in homing routines is biting be in the backside here too, otherwise it might have been obvious. Thanks Tom, -Brad Murry From: DynoMotion@yahoogroups.com [mailto:DynoMotion@yahoogroups.com] On Behalf Of Tom Kerekes
Sent: Wednesday, April 25, 2012 5:02 PM
To: DynoMotion@yahoogroups.com
Subject: Re: [DynoMotion] Yaskawa Legend Servo Amp to Kanalog No it wouldn't be required by the drive. That is an output (sort of like a status output). The drive may well need the signal internally to do commutation or whatever but they wouldn't care whether what they send out was used or not. This is exactly what Bengt is trying to do in the other thread which is to be able to do more precise homing. The home routine would first jog until it detects a home switch. The home switch doesn't need to be very accurate as it only needs to put us within one specific rev of the lead screw. Then we would start jogging slowly until we detect the Index pulse, then stop. Since KFLOP User programs execute a timeslice every 180us the Index pulse must be longer than 180us to be reliably detected. This is not usually a problem. I am checking with Yaskawa to see if the C is required. If it is, how would I go about (handling it in software)? The Yaskawa manual actually has terminals for A, B, and C differential outputs. Page 29 describes the C "phase" as an "origin pulse" (I've seen the letter I or Z used before but never C). So I believe this is equivalent to a once per revolution Index pulse. Kanalog has 16 differential inputs that are wired to 8 A/B hardware encoder quadrature counters. If you don't have 8 encoders the unused differential inputs can be used as Index pulse inputs. Index pulses are handled in software so any spare input can be used. If no differential inputs are available a single ended spare input might also be used by just using the + signal leaving the - signal open, but of course there will be less noise immunity. Hello Tom,
I am looking to connect a SGDG-10GT Yaskawa Legend series servo pak to the kflop via an kanalog board.
I have perused your documentation but have not yet stumbled on to what I am after.
The we typically connect this drive to a controller that has a+a- b+b- and i+ i-.
I only see references for channels a and b for kanalog, do you have any thoughts for using the Yaskawa's I channels?
see page 28 of this manual::
http://www.yaskawa.com/site/dmservo.nsf/link2/TKUR-5PHSY9/$file/LEGENDUsersVersionF.pdf
Thanks for any assistance.
-Brad |
|
| Group: DynoMotion |
Message: 4655 |
From: Brad Murry |
Date: 4/25/2012 |
| Subject: Re: Yaskawa Legend Servo Amp to Kanalog |
Hello Jerome, We are going to run analog. Yep, I was way off thinking it was some weird Yaskawa proprietary channel. I’ll probably just hook it into an opto-input for good homing like Bengt. Thanks, Brad Murry From: DynoMotion@yahoogroups.com [mailto:DynoMotion@yahoogroups.com] On Behalf Of Fouijar
Sent: Wednesday, April 25, 2012 5:17 PM
To: DynoMotion@yahoogroups.com
Subject: [DynoMotion] Re: Yaskawa Legend Servo Amp to Kanalog Hi Brad,
What is the control method you intend to use, analog or step/dir?
I personally use servo drives and have a similar encoder configuration, A+A-;B+B-;C+C- these two are used as reference (0 point).
I get the feedback signal from the drive to the Kanalog but there's no direct interaction since "it's only feedback".
I checked your drive's manual and it's basically the same scheme as mine, so you may use my configuration file and adapt to suit your process.
Maybe I missed the point you are focused on but to me there's no need to control from encoder point of view.
Regards,
Jerome
--- In DynoMotion@yahoogroups.com, Brad Murry <bradodarb@...> wrote:
>
> Hello Tom,
>
>
>
> I am checking with Yaskawa to see if the C is required.
>
>
>
> If it is, how would I go about (handling it in software)?
>
>
>
> -Brad Murry
>
>
>
> From: DynoMotion@yahoogroups.com [mailto:DynoMotion@yahoogroups.com] On Behalf Of Tom Kerekes
> Sent: Monday, April 23, 2012 6:08 PM
> To: DynoMotion@yahoogroups.com
> Subject: Re: [DynoMotion] Yaskawa Legend Servo Amp to Kanalog
>
>
>
>
>
> Hi Brad,
>
>
>
> The Yaskawa manual actually has terminals for A, B, and C differential outputs. Page 29 describes the C "phase" as an "origin pulse" (I've seen the letter I or Z used before but never C). So I believe this is equivalent to a once per revolution Index pulse.
>
>
>
> Kanalog has 16 differential inputs that are wired to 8 A/B hardware encoder quadrature counters. If you don't have 8 encoders the unused differential inputs can be used as Index pulse inputs. Index pulses are handled in software so any spare input can be used. If no differential inputs are available a single ended spare input might also be used by just using the + signal leaving the - signal open, but of course there will be less noise immunity.
>
>
>
> Regards
>
> TK
>
>
>
> From: bradodarb <bradodarb@...>
> To: DynoMotion@yahoogroups.com
> Sent: Monday, April 23, 2012 5:24 PM
> Subject: [DynoMotion] Yaskawa Legend Servo Amp to Kanalog
>
>
>
>
>
> Hello Tom,
>
> I am looking to connect a SGDG-10GT Yaskawa Legend series servo pak to the kflop via an kanalog board.
>
> I have perused your documentation but have not yet stumbled on to what I am after.
>
> The we typically connect this drive to a controller that has a+a- b+b- and i+ i-.
>
> I only see references for channels a and b for kanalog, do you have any thoughts for using the Yaskawa's I channels?
>
> see page 28 of this manual::
> http://www.yaskawa.com/site/dmservo.nsf/link2/TKUR-5PHSY9/$file/LEGENDUsersVersionF.pdf
>
> Thanks for any assistance.
> -Brad
> |
|
| | | |
