Dynomotion

Group: DynoMotion Message: 2452 From: gracemckay Date: 11/27/2011
Subject: Step Direction Set up for brushed servo
I have my new kflop hooked up to my pc, and I have Kmotion installed. I have my new Winford breakout set up for J7. I have my servo motor, my servo driver, and power supply all hooked up and ready to go. I have a step/direction input on the servo driver.

Next, I would like to test the servo system with the kflop/kmotion. I am having trouble understanding the documentation on which IO is needed for step/dir, and how to config the kmotion to to test this. Is there clear documentation anywhere that can get me through this? If not, could we talk about it here?

I just created a photo folder called Film Scanner. I have put a couple of images in there so you can see progress on the project.

Grace McKay
Group: DynoMotion Message: 2453 From: Tom Kerekes Date: 11/27/2011
Subject: Re: Step Direction Set up for brushed servo
Hi Grace,
 
The Step/Dir outputs for Step/Dir Generator #0 come out on IO 8 and 9 which are JP7 Pins 15 and 16.
 
This is described here
 
Drives have various input types that require the signals to be either sinking or sourcing current.  Depending on this you will also need to make a GND or +5V connection.
 
More info here
 
Next on the Config/Flash Screen push "Load Channel" and load the SimpleStepDirAxis0.mot Configuration.
 
Then on the Step Response Screen push "Move"
 
Your Motor should move. 
 
If not cycle power on KFLOP and use the Digital IO screen to toggle Bit 8 to diagnose wiring/electrical problems.
 
Regards
TK

Group: DynoMotion Message: 2454 From: gracemckay Date: 11/27/2011
Subject: Re: Step Direction Set up for brushed servo
Thanks, Tom,

Those links are what got me confused <smile>!

OK, let's see if I understand. I connect pin 15 to the Step input on the driver. I connect pin 16 to the direction input. I connect my step negative and direction negative to ground. And I say "ground" because the driver doesn't seem to care how I connect this-- they show three different wiring diagrams depending on what the controller wants- open collector, common cathode, and differential control-- are the terms they use. (In testing the servo system with a pulse generator this wiring worked.)

I am not afraid to hook this up, but I don;t want to blow up the kflop if I can help it.


Here is a link to the DCS810 driver manual.
http://www.leadshineusa.com/UploadFile/DCS810V1m.pdf
The signals are described on pdf page 6

Grace



--- In DynoMotion@yahoogroups.com, Tom Kerekes <tk@...> wrote:
>
> Hi Grace,
>  
> The Step/Dir outputs for Step/Dir Generator #0 come out on IO 8 and 9 which are JP7 Pins 15 and 16.
>  
> This is described here
>  
> Drives have various input types that require the signals to be either sinking or sourcing current.  Depending on this you will also need to make a GND or +5V connection.
>  
> More info here
>  
> Next on the Config/Flash Screen push "Load Channel" and load the SimpleStepDirAxis0.mot Configuration.
>  
> Then on the Step Response Screen push "Move"
>  
> Your Motor should move. 
>  
> If not cycle power on KFLOP and use the Digital IO screen to toggle Bit 8 to diagnose wiring/electrical problems.
>  
> Regards
> TK
>
> From: gracemckay <grace@...>
> To: DynoMotion@yahoogroups.com
> Sent: Sunday, November 27, 2011 11:51 AM
> Subject: [DynoMotion] Step Direction Set up for brushed servo
>
>
>  
> I have my new kflop hooked up to my pc, and I have Kmotion installed. I have my new Winford breakout set up for J7. I have my servo motor, my servo driver, and power supply all hooked up and ready to go. I have a step/direction input on the servo driver.
>
> Next, I would like to test the servo system with the kflop/kmotion. I am having trouble understanding the documentation on which IO is needed for step/dir, and how to config the kmotion to to test this. Is there clear documentation anywhere that can get me through this? If not, could we talk about it here?
>
> I just created a photo folder called Film Scanner. I have put a couple of images in there so you can see progress on the project.
>
> Grace McKay
>
Group: DynoMotion Message: 2455 From: TK Date: 11/27/2011
Subject: Re: Step Direction Set up for brushed servo
Hi Grace,

The specification requires more than 4V for an on and less than 0.5V for an off which KFLOP can't technically provide without adding a buffer chip. But most likely open collector mode may work.  Connect their pulse+ to +5V and pulse- to the KFLOP output pin. This will result in ~4.5V for on and ~1.1V for off.  If it doesn't work it will not cause any damage.

Regards

TK

On Nov 27, 2011, at 12:43 PM, "gracemckay" <grace@...> wrote:

 

Thanks, Tom,

Those links are what got me confused <smile>!

OK, let's see if I understand. I connect pin 15 to the Step input on the driver. I connect pin 16 to the direction input. I connect my step negative and direction negative to ground. And I say "ground" because the driver doesn't seem to care how I connect this-- they show three different wiring diagrams depending on what the controller wants- open collector, common cathode, and differential control-- are the terms they use. (In testing the servo system with a pulse generator this wiring worked.)

I am not afraid to hook this up, but I don;t want to blow up the kflop if I can help it.

Here is a link to the DCS810 driver manual.
http://www.leadshineusa.com/UploadFile/DCS810V1m.pdf
The signals are described on pdf page 6

Grace

--- In DynoMotion@yahoogroups.com, Tom Kerekes <tk@...> wrote:
>
> Hi Grace,
>  
> The Step/Dir outputs for Step/Dir Generator #0 come out on IO 8 and 9 which are JP7 Pins 15 and 16.
>  
> This is described here
>  
> Drives have various input types that require the signals to be either sinking or sourcing current.  Depending on this you will also need to make a GND or +5V connection.
>  
> More info here
>  
> Next on the Config/Flash Screen push "Load Channel" and load the SimpleStepDirAxis0.mot Configuration.
>  
> Then on the Step Response Screen push "Move"
>  
> Your Motor should move. 
>  
> If not cycle power on KFLOP and use the Digital IO screen to toggle Bit 8 to diagnose wiring/electrical problems.
>  
> Regards
> TK
>
> From: gracemckay <grace@...>
> To: DynoMotion@yahoogroups.com
> Sent: Sunday, November 27, 2011 11:51 AM
> Subject: [DynoMotion] Step Direction Set up for brushed servo
>
>
>  
> I have my new kflop hooked up to my pc, and I have Kmotion installed. I have my new Winford breakout set up for J7. I have my servo motor, my servo driver, and power supply all hooked up and ready to go. I have a step/direction input on the servo driver.
>
> Next, I would like to test the servo system with the kflop/kmotion. I am having trouble understanding the documentation on which IO is needed for step/dir, and how to config the kmotion to to test this. Is there clear documentation anywhere that can get me through this? If not, could we talk about it here?
>
> I just created a photo folder called Film Scanner. I have put a couple of images in there so you can see progress on the project.
>
> Grace McKay
>
Group: DynoMotion Message: 2456 From: Grace McKay Date: 11/27/2011
Subject: Re: Step Direction Set up for brushed servo

Thanks Tom!

I got it to work, at least a little bit. So I didn't smoke anything!  I guess the next step is to see if I can make the motor run using a c program. I'll take a stab at that tomorrow!

Grace McKay
ScanBox
High Definition Motion Scanning
Scanbox.tv



On 11/27/2011 1:26 PM, TK wrote:
 
Hi Grace,

The specification requires more than 4V for an on and less than 0.5V for an off which KFLOP can't technically provide without adding a buffer chip. But most likely open collector mode may work.  Connect their pulse+ to +5V and pulse- to the KFLOP output pin. This will result in ~4.5V for on and ~1.1V for off.  If it doesn't work it will not cause any damage.

Regards

TK

On Nov 27, 2011, at 12:43 PM, "gracemckay" <grace@...> wrote:

 

Thanks, Tom,

Those links are what got me confused <smile>!

OK, let's see if I understand. I connect pin 15 to the Step input on the driver. I connect pin 16 to the direction input. I connect my step negative and direction negative to ground. And I say "ground" because the driver doesn't seem to care how I connect this-- they show three different wiring diagrams depending on what the controller wants- open collector, common cathode, and differential control-- are the terms they use. (In testing the servo system with a pulse generator this wiring worked.)

I am not afraid to hook this up, but I don;t want to blow up the kflop if I can help it.

Here is a link to the DCS810 driver manual.
http://www.leadshineusa.com/UploadFile/DCS810V1m.pdf
The signals are described on pdf page 6

Grace

--- In DynoMotion@yahoogroups.com, Tom Kerekes <tk@...> wrote:
>
> Hi Grace,
>  
> The Step/Dir outputs for Step/Dir Generator #0 come out on IO 8 and 9 which are JP7 Pins 15 and 16.
>  
> This is described here
>  
> Drives have various input types that require the signals to be either sinking or sourcing current.  Depending on this you will also need to make a GND or +5V connection.
>  
> More info here
>  
> Next on the Config/Flash Screen push "Load Channel" and load the SimpleStepDirAxis0.mot Configuration.
>  
> Then on the Step Response Screen push "Move"
>  
> Your Motor should move. 
>  
> If not cycle power on KFLOP and use the Digital IO screen to toggle Bit 8 to diagnose wiring/electrical problems.
>  
> Regards
> TK
>
> From: gracemckay <grace@...>
> To: DynoMotion@yahoogroups.com
> Sent: Sunday, November 27, 2011 11:51 AM
> Subject: [DynoMotion] Step Direction Set up for brushed servo
>
>
>  
> I have my new kflop hooked up to my pc, and I have Kmotion installed. I have my new Winford breakout set up for J7. I have my servo motor, my servo driver, and power supply all hooked up and ready to go. I have a step/direction input on the servo driver.
>
> Next, I would like to test the servo system with the kflop/kmotion. I am having trouble understanding the documentation on which IO is needed for step/dir, and how to config the kmotion to to test this. Is there clear documentation anywhere that can get me through this? If not, could we talk about it here?
>
> I just created a photo folder called Film Scanner. I have put a couple of images in there so you can see progress on the project.
>
> Grace McKay
>
Group: DynoMotion Message: 2457 From: Tom Kerekes Date: 11/27/2011
Subject: Re: Step Direction Set up for brushed servo
Hi Grace,
 
Try this:
 
#include "KMotionDef.h"
main()
{
    MoveRel(0,1000);
}
 
 
TK

Group: DynoMotion Message: 2459 From: quelisto Date: 11/28/2011
Subject: Re: Step Direction Set up for brushed servo
Grace, you can use optoisolators as an alternative to do level conversion if you have a hard time finding the right level converting IC. Jameco has them pretty cheap. the only trouble with optoisolators is that your switching speed is limited to a few hundred kHz, which may or may not be a problem in your application.

--- In DynoMotion@yahoogroups.com, Grace McKay <grace@...> wrote:
>
>
> Thanks Tom!
>
> I got it to work, at least a little bit. So I didn't smoke anything! I
> guess the next step is to see if I can make the motor run using a c
> program. I'll take a stab at that tomorrow!
>
> Grace McKay
> ScanBox
> High Definition Motion Scanning
> *Scanbox.tv*
>
>
>
> On 11/27/2011 1:26 PM, TK wrote:
> > Hi Grace,
> >
> > The specification requires more than 4V for an on and less than 0.5V
> > for an off which KFLOP can't technically provide without adding a
> > buffer chip. But most likely open collector mode may work. Connect
> > their pulse+ to +5V and pulse- to the KFLOP output pin. This will
> > result in ~4.5V for on and ~1.1V for off. If it doesn't work it will
> > not cause any damage.
> >
> > Regards
> >
> > TK
> >
> > On Nov 27, 2011, at 12:43 PM, "gracemckay" <grace@...
> > <mailto:grace@...>> wrote:
> >
> >> Thanks, Tom,
> >>
> >> Those links are what got me confused <smile>!
> >>
> >> OK, let's see if I understand. I connect pin 15 to the Step input on
> >> the driver. I connect pin 16 to the direction input. I connect my
> >> step negative and direction negative to ground. And I say "ground"
> >> because the driver doesn't seem to care how I connect this-- they
> >> show three different wiring diagrams depending on what the controller
> >> wants- open collector, common cathode, and differential control-- are
> >> the terms they use. (In testing the servo system with a pulse
> >> generator this wiring worked.)
> >>
> >> I am not afraid to hook this up, but I don;t want to blow up the
> >> kflop if I can help it.
> >>
> >> Here is a link to the DCS810 driver manual.
> >> http://www.leadshineusa.com/UploadFile/DCS810V1m.pdf
> >> The signals are described on pdf page 6
> >>
> >> Grace
> >>
> >> --- In DynoMotion@yahoogroups.com
> >> <mailto:DynoMotion%40yahoogroups.com>, Tom Kerekes <tk@> wrote:
> >> >
> >> > Hi Grace,
> >> > Â
> >> > The Step/Dir outputs for Step/Dir Generator #0 come out on IO 8 and
> >> 9 which are JP7 Pins 15 and 16.
> >> > Â
> >> > This is described here
> >> > Â
> >> > Drives have various input types that require the signals to be
> >> either sinking or sourcing current. Depending on this you will also
> >> need to make a GND or +5V connection.
> >> > Â
> >> > More info here
> >> > Â
> >> > Next on the Config/Flash Screen push "Load Channel" and load
> >> the SimpleStepDirAxis0.mot Configuration.
> >> > Â
> >> > Then on the Step Response Screen push "Move"
> >> > Â
> >> > Your Motor should move.Â
> >> > Â
> >> > If not cycle power on KFLOP and use the Digital IO screen to toggle
> >> Bit 8 to diagnose wiring/electrical problems.
> >> > Â
> >> > Regards
> >> > TK
> >> >
> >> > From: gracemckay <grace@>
> >> > To: DynoMotion@yahoogroups.com <mailto:DynoMotion%40yahoogroups.com>
> >> > Sent: Sunday, November 27, 2011 11:51 AM
> >> > Subject: [DynoMotion] Step Direction Set up for brushed servo
> >> >
> >> >
> >> > Â
> >> > I have my new kflop hooked up to my pc, and I have Kmotion
> >> installed. I have my new Winford breakout set up for J7. I have my
> >> servo motor, my servo driver, and power supply all hooked up and
> >> ready to go. I have a step/direction input on the servo driver.
> >> >
> >> > Next, I would like to test the servo system with the kflop/kmotion.
> >> I am having trouble understanding the documentation on which IO is
> >> needed for step/dir, and how to config the kmotion to to test this.
> >> Is there clear documentation anywhere that can get me through this?
> >> If not, could we talk about it here?
> >> >
> >> > I just created a photo folder called Film Scanner. I have put a
> >> couple of images in there so you can see progress on the project.
> >> >
> >> > Grace McKay
> >> >
> >>
> >
>
Group: DynoMotion Message: 2466 From: M.T.S.S. Date: 11/28/2011
Subject: Re: Step Direction Set up for brushed servo
Hello Grace

Regards opto-isolation:
If I can, I would suggest very fast H11N1M ..... http://www.fairchildsemi.com/ds/H1/H11N1M.pdf
- frequency up to 5MHz
- pulse shaping using integrated Schmitt trigger gate ( additional noise immunity) 

If cheaper version required there is 1MHz version: http://www.fairchildsemi.com/ds/H1/H11L1M.pdf  (this version is good enough for you due to limited input speed in your driver)

I've got successfully integrated this IC with stepper drivers - now I'm going to do between Kflop and BLDC (step/dir) power driver we will see how it go :)

I hope this will help...

Mateusz

On 28 November 2011 20:10, quelisto <quelisto@...> wrote:
 

Grace, you can use optoisolators as an alternative to do level conversion if you have a hard time finding the right level converting IC. Jameco has them pretty cheap. the only trouble with optoisolators is that your switching speed is limited to a few hundred kHz, which may or may not be a problem in your application.



--- In DynoMotion@yahoogroups.com, Grace McKay <grace@...> wrote:
>
>
> Thanks Tom!
>
> I got it to work, at least a little bit. So I didn't smoke anything! I
> guess the next step is to see if I can make the motor run using a c
> program. I'll take a stab at that tomorrow!
>
> Grace McKay
> ScanBox
> High Definition Motion Scanning
> *Scanbox.tv*

>
>
>
> On 11/27/2011 1:26 PM, TK wrote:
> > Hi Grace,
> >
> > The specification requires more than 4V for an on and less than 0.5V
> > for an off which KFLOP can't technically provide without adding a
> > buffer chip. But most likely open collector mode may work. Connect
> > their pulse+ to +5V and pulse- to the KFLOP output pin. This will
> > result in ~4.5V for on and ~1.1V for off. If it doesn't work it will
> > not cause any damage.
> >
> > Regards
> >
> > TK
> >
> > On Nov 27, 2011, at 12:43 PM, "gracemckay" <grace@...
> > <mailto:grace@...>> wrote:
> >
> >> Thanks, Tom,
> >>
> >> Those links are what got me confused <smile>!
> >>
> >> OK, let's see if I understand. I connect pin 15 to the Step input on
> >> the driver. I connect pin 16 to the direction input. I connect my
> >> step negative and direction negative to ground. And I say "ground"
> >> because the driver doesn't seem to care how I connect this-- they
> >> show three different wiring diagrams depending on what the controller
> >> wants- open collector, common cathode, and differential control-- are
> >> the terms they use. (In testing the servo system with a pulse
> >> generator this wiring worked.)
> >>
> >> I am not afraid to hook this up, but I don;t want to blow up the
> >> kflop if I can help it.
> >>
> >> Here is a link to the DCS810 driver manual.
> >> http://www.leadshineusa.com/UploadFile/DCS810V1m.pdf
> >> The signals are described on pdf page 6
> >>
> >> Grace
> >>
> >> --- In DynoMotion@yahoogroups.com
> >> <mailto:DynoMotion%40yahoogroups.com>, Tom Kerekes <tk@> wrote:
> >> >
> >> > Hi Grace,
> >> > Â

> >> > The Step/Dir outputs for Step/Dir Generator #0 come out on IO 8 and
> >> 9 which are JP7 Pins 15 and 16.
> >> > Â
> >> > This is described here
> >> > Â

> >> > Drives have various input types that require the signals to be
> >> either sinking or sourcing current. Depending on this you will also
> >> need to make a GND or +5V connection.
> >> > Â
> >> > More info here
> >> > Â
> >> > Next on the Config/Flash Screen push "Load Channel" and load
> >> the SimpleStepDirAxis0.mot Configuration.
> >> > Â

> >> > Then on the Step Response Screen push "Move"
> >> > Â
> >> > Your Motor should move.Â
> >> > Â

> >> > If not cycle power on KFLOP and use the Digital IO screen to toggle
> >> Bit 8 to diagnose wiring/electrical problems.
> >> > Â
> >> > Regards
> >> > TK
> >> >
> >> > From: gracemckay <grace@>
> >> > To: DynoMotion@yahoogroups.com <mailto:DynoMotion%40yahoogroups.com>

> >> > Sent: Sunday, November 27, 2011 11:51 AM
> >> > Subject: [DynoMotion] Step Direction Set up for brushed servo
> >> >
> >> >
> >> > Â

> >> > I have my new kflop hooked up to my pc, and I have Kmotion
> >> installed. I have my new Winford breakout set up for J7. I have my
> >> servo motor, my servo driver, and power supply all hooked up and
> >> ready to go. I have a step/direction input on the servo driver.
> >> >
> >> > Next, I would like to test the servo system with the kflop/kmotion.
> >> I am having trouble understanding the documentation on which IO is
> >> needed for step/dir, and how to config the kmotion to to test this.
> >> Is there clear documentation anywhere that can get me through this?
> >> If not, could we talk about it here?
> >> >
> >> > I just created a photo folder called Film Scanner. I have put a
> >> couple of images in there so you can see progress on the project.
> >> >
> >> > Grace McKay
> >> >
> >>
> >
>
Group: DynoMotion Message: 2467 From: albertplatek Date: 11/29/2011
Subject: Re: Step Direction Set up for brushed servo

Hi Grace

Also as an alternative you can use quad-channeldigital isolators ADuM1400ARW, which works with my stepper drivers. 

http://www.analog.com/static/imported-files/data_sheets/ADuM1400_1401_1402.pdf

The advantage of using digital isolators is that they remove the design difficulties, you don’tneed to add any resistors to circuit, only 2 bypass capacitors (1 on either side).

These digital isolators operate with the supply voltage on either side ranging from 2.7 V to 5.5 V, providing compatibility with lower voltage systems as well as enabling a voltage translation functionality across the isolation barrier.

Parameter

Symbol

Min

Typ

Max

Unit

Test Conditions

SWITCHING SPECIFICATIONS

ADuM140xARW

Maximum Data Rate

1

Mbps

CL = 15 pF, CMOS signal levels

Propagation Delay

tPHL, tPLH

50

65

100

ns

CL = 15 pF, CMOS signal levels


Regards
Albert

--- In DynoMotion@yahoogroups.com, "M.T.S.S." <matemos@...> wrote:
>
> Hello Grace
>
> Regards opto-isolation:
> If I can, I would suggest very fast H11N1M .....
> http://www.fairchildsemi.com/ds/H1/H11N1M.pdf
> - frequency up to 5MHz
> - pulse shaping using integrated Schmitt trigger gate ( additional noise
> immunity)
>
> If cheaper version required there is 1MHz version:
> http://www.fairchildsemi.com/ds/H1/H11L1M.pdf (this version is good enough
> for you due to limited input speed in your driver)
>
> I've got successfully integrated this IC with stepper drivers - now I'm
> going to do between Kflop and BLDC (step/dir) power driver we will see how
> it go :)
>
> I hope this will help...
>
> Mateusz
>
> On 28 November 2011 20:10, quelisto quelisto@... wrote:
>
> > **
> >
> >
> > Grace, you can use optoisolators as an alternative to do level conversion
> > if you have a hard time finding the right level converting IC. Jameco has
> > them pretty cheap. the only trouble with optoisolators is that your
> > switching speed is limited to a few hundred kHz, which may or may not be a
> > problem in your application.
> >
> >
> > --- In DynoMotion@yahoogroups.com, Grace McKay grace@ wrote:
> > >
> > >
> > > Thanks Tom!
> > >
> > > I got it to work, at least a little bit. So I didn't smoke anything! I
> > > guess the next step is to see if I can make the motor run using a c
> > > program. I'll take a stab at that tomorrow!
> > >
> > > Grace McKay
> > > ScanBox
> > > High Definition Motion Scanning
> > > *Scanbox.tv*
> >
> > >
> > >
> > >
> > > On 11/27/2011 1:26 PM, TK wrote:
> > > > Hi Grace,
> > > >
> > > > The specification requires more than 4V for an on and less than 0.5V
> > > > for an off which KFLOP can't technically provide without adding a
> > > > buffer chip. But most likely open collector mode may work. Connect
> > > > their pulse+ to +5V and pulse- to the KFLOP output pin. This will
> > > > result in ~4.5V for on and ~1.1V for off. If it doesn't work it will
> > > > not cause any damage.
> > > >
> > > > Regards
> > > >
> > > > TK
> > > >
> > > > On Nov 27, 2011, at 12:43 PM, "gracemckay" grace@
> > > > <mailto:grace@> wrote:
> > > >
> > > >> Thanks, Tom,
> > > >>
> > > >> Those links are what got me confused <smile>!
> > > >>
> > > >> OK, let's see if I understand. I connect pin 15 to the Step input on
> > > >> the driver. I connect pin 16 to the direction input. I connect my
> > > >> step negative and direction negative to ground. And I say "ground"
> > > >> because the driver doesn't seem to care how I connect this-- they
> > > >> show three different wiring diagrams depending on what the controller
> > > >> wants- open collector, common cathode, and differential control-- are
> > > >> the terms they use. (In testing the servo system with a pulse
> > > >> generator this wiring worked.)
> > > >>
> > > >> I am not afraid to hook this up, but I don;t want to blow up the
> > > >> kflop if I can help it.
> > > >>
> > > >> Here is a link to the DCS810 driver manual.
> > > >> http://www.leadshineusa.com/UploadFile/DCS810V1m.pdf
> > > >> The signals are described on pdf page 6
> > > >>
> > > >> Grace
> > > >>
> > > >> --- In DynoMotion@yahoogroups.com
> > > >> <mailto:DynoMotion%40yahoogroups.com>, Tom Kerekes <tk@> wrote:
> > > >> >
> > > >> > Hi Grace,
> > > >> > Â
> >
> > > >> > The Step/Dir outputs for Step/Dir Generator #0 come out on IO 8 and
> > > >> 9 which are JP7 Pins 15 and 16.
> > > >> > Â
> > > >> > This is described here
> > > >> > Â
> >
> > > >> > Drives have various input types that require the signals to be
> > > >> either sinking or sourcing current. Depending on this you will also
> > > >> need to make a GND or +5V connection.
> > > >> > Â
> > > >> > More info here
> > > >> > Â
> > > >> > Next on the Config/Flash Screen push "Load Channel" and load
> > > >> the SimpleStepDirAxis0.mot Configuration.
> > > >> > Â
> >
> > > >> > Then on the Step Response Screen push "Move"
> > > >> > Â
> > > >> > Your Motor should move.Â
> > > >> > Â
> >
> > > >> > If not cycle power on KFLOP and use the Digital IO screen to toggle
> > > >> Bit 8 to diagnose wiring/electrical problems.
> > > >> > Â
> > > >> > Regards
> > > >> > TK
> > > >> >
> > > >> > From: gracemckay <grace@>
> > > >> > To: DynoMotion@yahoogroups.com <mailto:DynoMotion%40yahoogroups.com
> > >
> >
> > > >> > Sent: Sunday, November 27, 2011 11:51 AM
> > > >> > Subject: [DynoMotion] Step Direction Set up for brushed servo
> > > >> >
> > > >> >
> > > >> > Â
> >
> > > >> > I have my new kflop hooked up to my pc, and I have Kmotion
> > > >> installed. I have my new Winford breakout set up for J7. I have my
> > > >> servo motor, my servo driver, and power supply all hooked up and
> > > >> ready to go. I have a step/direction input on the servo driver.
> > > >> >
> > > >> > Next, I would like to test the servo system with the kflop/kmotion.
> > > >> I am having trouble understanding the documentation on which IO is
> > > >> needed for step/dir, and how to config the kmotion to to test this.
> > > >> Is there clear documentation anywhere that can get me through this?
> > > >> If not, could we talk about it here?
> > > >> >
> > > >> > I just created a photo folder called Film Scanner. I have put a
> > > >> couple of images in there so you can see progress on the project.
> > > >> >
> > > >> > Grace McKay
> > > >> >
> > > >>
> > > >
> > >
> >
> >
> >
>
Group: DynoMotion Message: 2468 From: Grace McKay Date: 11/29/2011
Subject: Re: Step Direction Set up for brushed servo
Thanks, guys, for the info on level conversion and optoisolators--  I found a couple of items on Sparkfun http://www.sparkfun.com/products/9118  and  http://www.sparkfun.com/products/8745  that I thought might work. But I am unsure whether I need anything at all. (By the way, the servo driver has an optoisolator stage built-in. Maybe that is why it is working) The motor is now turning in response to Kmotion commands on the test screen. And to simple c programs as well. How do I tell if what I have is working correctly or not? I have not yet mastered any of the graphs that the testing screens generate so that is not much help.

I am afraid my learning curve is much earlier that jumping right to the chip-level design stage. <smile>

Grace McKay
ScanBox
High Definition Motion Scanning
Scanbox.tv


On 11/28/2011 11:57 PM, M.T.S.S. wrote:
 

Hello Grace


Regards opto-isolation:
If I can, I would suggest very fast H11N1M ..... http://www.fairchildsemi.com/ds/H1/H11N1M.pdf
- frequency up to 5MHz
- pulse shaping using integrated Schmitt trigger gate ( additional noise immunity) 

If cheaper version required there is 1MHz version: http://www.fairchildsemi.com/ds/H1/H11L1M.pdf  (this version is good enough for you due to limited input speed in your driver)

I've got successfully integrated this IC with stepper drivers - now I'm going to do between Kflop and BLDC (step/dir) power driver we will see how it go :)

I hope this will help...

Mateusz

On 28 November 2011 20:10, quelisto <quelisto@...> wrote:
 

Grace, you can use optoisolators as an alternative to do level conversion if you have a hard time finding the right level converting IC. Jameco has them pretty cheap. the only trouble with optoisolators is that your switching speed is limited to a few hundred kHz, which may or may not be a problem in your application.



--- In DynoMotion@yahoogroups.com, Grace McKay <grace@...> wrote:
>
>
> Thanks Tom!
>
> I got it to work, at least a little bit. So I didn't smoke anything! I
> guess the next step is to see if I can make the motor run using a c
> program. I'll take a stab at that tomorrow!
>
> Grace McKay
> ScanBox
> High Definition Motion Scanning
> *Scanbox.tv*

>
>
>
> On 11/27/2011 1:26 PM, TK wrote:
> > Hi Grace,
> >
> > The specification requires more than 4V for an on and less than 0.5V
> > for an off which KFLOP can't technically provide without adding a
> > buffer chip. But most likely open collector mode may work. Connect
> > their pulse+ to +5V and pulse- to the KFLOP output pin. This will
> > result in ~4.5V for on and ~1.1V for off. If it doesn't work it will
> > not cause any damage.
> >
> > Regards
> >
> > TK
> >
> > On Nov 27, 2011, at 12:43 PM, "gracemckay" <grace@...
> > <mailto:grace@...>> wrote:
> >
> >> Thanks, Tom,
> >>
> >> Those links are what got me confused <smile>!
> >>
> >> OK, let's see if I understand. I connect pin 15 to the Step input on
> >> the driver. I connect pin 16 to the direction input. I connect my
> >> step negative and direction negative to ground. And I say "ground"
> >> because the driver doesn't seem to care how I connect this-- they
> >> show three different wiring diagrams depending on what the controller
> >> wants- open collector, common cathode, and differential control-- are
> >> the terms they use. (In testing the servo system with a pulse
> >> generator this wiring worked.)
> >>
> >> I am not afraid to hook this up, but I don;t want to blow up the
> >> kflop if I can help it.
> >>
> >> Here is a link to the DCS810 driver manual.
> >> http://www.leadshineusa.com/UploadFile/DCS810V1m.pdf
> >> The signals are described on pdf page 6
> >>
> >> Grace
> >>
> >> --- In DynoMotion@yahoogroups.com
> >> <mailto:DynoMotion%40yahoogroups.com>, Tom Kerekes <tk@> wrote:
> >> >
> >> > Hi Grace,
> >> > Â

> >> > The Step/Dir outputs for Step/Dir Generator #0 come out on IO 8 and
> >> 9 which are JP7 Pins 15 and 16.
> >> > Â
> >> > This is described here
> >> > Â

> >> > Drives have various input types that require the signals to be
> >> either sinking or sourcing current. Depending on this you will also
> >> need to make a GND or +5V connection.
> >> > Â
> >> > More info here
> >> > Â
> >> > Next on the Config/Flash Screen push "Load Channel" and load
> >> the SimpleStepDirAxis0.mot Configuration.
> >> > Â

> >> > Then on the Step Response Screen push "Move"
> >> > Â
> >> > Your Motor should move.Â
> >> > Â

> >> > If not cycle power on KFLOP and use the Digital IO screen to toggle
> >> Bit 8 to diagnose wiring/electrical problems.
> >> > Â
> >> > Regards
> >> > TK
> >> >
> >> > From: gracemckay <grace@>
> >> > To: DynoMotion@yahoogroups.com <mailto:DynoMotion%40yahoogroups.com>

> >> > Sent: Sunday, November 27, 2011 11:51 AM
> >> > Subject: [DynoMotion] Step Direction Set up for brushed servo
> >> >
> >> >
> >> > Â

> >> > I have my new kflop hooked up to my pc, and I have Kmotion
> >> installed. I have my new Winford breakout set up for J7. I have my
> >> servo motor, my servo driver, and power supply all hooked up and
> >> ready to go. I have a step/direction input on the servo driver.
> >> >
> >> > Next, I would like to test the servo system with the kflop/kmotion.
> >> I am having trouble understanding the documentation on which IO is
> >> needed for step/dir, and how to config the kmotion to to test this.
> >> Is there clear documentation anywhere that can get me through this?
> >> If not, could we talk about it here?
> >> >
> >> > I just created a photo folder called Film Scanner. I have put a
> >> couple of images in there so you can see progress on the project.
> >> >
> >> > Grace McKay
> >> >
> >>
> >
>
Group: DynoMotion Message: 2471 From: Tom Kerekes Date: 11/29/2011
Subject: Re: Step Direction Set up for brushed servo
Hi Grace,
 
Most likely you are ok.  Even though the spec says you must be below 0.5V most any LED requires at least 1.2V to even begin to start to turn on.  You might run into problems if your +5V is high.  For example +5.5V. 
 
Without encoder feedback you can't really tell from the plots if any of the step pulses are lost.  Move your motor to some Destination and mark the position, then move the motor at various speeds and directions  for a while and then move back to the same Destination.  If the physical position is the same as when you started then you probably aren't loosing any counts and are ok.
 
Regards
TK