--- In DynoMotion@yahoogroups.com, Tom Kerekes <tk@...> wrote:
>
> Hi Brad,
>  
> The outputs on JP5 are the same as JP7.  You can use JP5 in the same manner that I described.
>  
> Hi Brad,
>  
> You can do the same with JP5 as with JP7.
>  
> I wouldn't do it the way you are describing.
>  
> Regards
> TK
>
>
> ________________________________
> From: bradodarb <bradodarb@...>
> To: DynoMotion@yahoogroups.com
> Sent: Wednesday, May 16, 2012 2:43 PM
> Subject: [DynoMotion] Re: Differential Step/Dir
>
>
>  
> Hello Tom,
>
> Thanks, and we thought about moving over to JP7 to do what you are recommending but....
>
> We really wanted to use JP5 here, so I was planning on running
> \PULSE and \SIGN to KFLOP vcc with a resistor between (I think it wants ~185 ohms) to pull up.
>
> Would that not work?
>
> Thanks,
> Brad Murry
>
> --- In DynoMotion@yahoogroups.com, Tom Kerekes <tk@> wrote:
> >
> > Hi Brad,
> >  
> > See page 38
> >  
> > http://www.yaskawa.eu.com/alfresco/d/d/workspace/SpacesStore/1ac27064-f314-11df-8a01-b9d9b9346635/TOEP_C710806_04B_1_0.pdf?ticket=TICKET_5acc2b13d60956857bb76a8f095b001e54c97427
> >  
> >  
> > The PULSE (Step) and SIGN (Dir) inputs are not really differential inputs.  Rather they are simply an LED with 150 ohms in series.  Those should work well driven in 3.3V LVTTL outputs.  Connect \PULSE and \SIGN to KFLOP GND.  Connect KFLOP Step and Dir outputs to PULSE and SIGN.  Use TTL output mode rather than open collector (add 8 to the channel number).  The drive current through the LED should be at least:
> >  
> > (2.8V Output - 1.4V LED) / 150 ohms = 9.3ma.  which meets their 7 - 15ma allowed range.
> >  
> > Regards
> > TK
> >
> >
> > ________________________________
> > From: bradodarb <bradodarb@>
> > To: DynoMotion@yahoogroups.com
> > Sent: Wednesday, May 16, 2012 12:22 PM
> > Subject: [DynoMotion] Differential Step/Dir
> >
> >
> >  
> > Hello Tom,
> >
> > We are using the Yaskawa Junma servo drives that can accept step/dir input.
> >
> > Docs here::
> >
> > http://www.yaskawa.eu.com/nc/en/downloads/drives-motion-documents.html
> >
> > I am told it can function like a standard step/dir drive (step, dir and common) but it also can function as a differential step/dir drive which is meant to offer more noise immunity.
> >
> > So it has wires for::
> >
> > 1 Input CW, PULS Reverse pulse,
> > Reference pulse
> > Orange 1 Black
> > 2 Input /CW, /PULS Red
> > 3 Input CCW, SIGN Forward pulse,
> > Reference sign
> > Light
> > gray
> > Black
> > 4 Input /CCW, /SIGN Red
> > 5 Input +24VIN External input power
> > supply
> > White Black
> > 6 Input /S-ON Servo ON Red
> > 7 Output SG-COM Output signal ground Yellow Black
> > 8 Input CLR Position deviation
> > Pulse clear
> > Red
> > 9 Input /CLR Pink Black
> > 10 Output PCO Phase-C signal Red
> > 11 Output SG-PCO Phase-C signal ground Orange 2 Black
> > 12 Output ALM Servo alarm Red
> > 13 Output /BK Brake Light
> > gray
> > Black
> > 14 Output /COIN Positioning completion Red
> >
> > Can I configure the Kflop to operate like this?
> >
> > Thanks,
> > Brad Murry
> >
>