Maybe it wants a quadrature input. Is this what you were feeding it? Regards Roland
On 10 November 2010 20:51, Peter Cauchy <[email protected]> wrote: > Sorry to dredge this up from over a year ago, but I have a little more > info that may jog someones memory to help. > > I have picked up a pair of slo-syn ss2000-md7 drivers, and following the > docs, hooked them up. The only problem I am having is they will not > change direction. > > Jon Elson suggested: > > Try connecting the step signals to what you think are the direction > input, and direction > to the step input. If it now only moves in the other direction, then > your SloSyn driver > is expecting pulses on one input for CW and on the other input for CCW. > This is a fairly > common command scheme, sometimes called 1 pulse, and the step/direction > scheme is > called 2 pulse (1P/2P). There may be an option setting on the driver to > convert it to > 2P or step/direction. If not, there is a step output selection for this > type of command. > > With that and this from the manual: > > The SLO-SYN SS2000MD7 (MD7-128) Translator/Drive is a bipolar, > speed adjustable, two-phase PWM drive that uses power MOSFET > devices. > > I have hooked it up and changed the hal file for this system for up/down > (type 1) and for phase-A phase-B (type 2) from the stepgen manpage. > > I can now, with type 2, get the motor to turn using both + and -, but in > the same direction. > > Can anyone suggest what to try next? > > > > ------------------------------------------------------------------------------ > The Next 800 Companies to Lead America's Growth: New Video Whitepaper > David G. Thomson, author of the best-selling book "Blueprint to a > Billion" shares his insights and actions to help propel your > business during the next growth cycle. Listen Now! > http://p.sf.net/sfu/SAP-dev2dev > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ The Next 800 Companies to Lead America's Growth: New Video Whitepaper David G. Thomson, author of the best-selling book "Blueprint to a Billion" shares his insights and actions to help propel your business during the next growth cycle. Listen Now! http://p.sf.net/sfu/SAP-dev2dev _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
