While I have not hooked it up yet, I have tested the Automation Direct GS2 drive with the gs2 userspace driver coming out in 2.3. It works over modbus... SWP wrote the driver and it seems to work pretty slick... It is not real time so if you don't need real time it is real cost effictive...
http://www.linuxcnc.org/docs/devel/html/drivers_GS2.html http://www.linuxcnc.org/docs/devel/html/examples_gs2_example.html http://www.linuxcnc.org/docs/devel/html/hal_pyvcp_examples.html#sec:GS2-RPM-Meter John On 7 Feb 2009 at 22:45, Thomas Kaiser wrote: > Hey > > As I said in some other posts, I retrofit a Schaublin 125 lathe with > EMC2. > > On this machine the spindle speed is controlled by 2 different motor > speeds and a mechanical "stepless" gear. > > Instead of programming a hal component to use this 'stepless" gear, > I > would like to use a VFD instead. The motor and the gear will be set > to > its highest speed and then the VFD can control the speed of the > motor. > > As I use the parallel port I would like to control the speed by PWM > instead of a analog 0-10V signal (I know I can convert PWM to analog > with a low pass filter). > > Do VFD exist which can be controlled by PWM? recommendations? > > Motor data: > Low speed, 750 rpm, 0.9 kW > High speed, 1500 rpm, 3.0 kW > > Thomas > > > > -------------------------------------------------------------------- > ---------- > Create and Deploy Rich Internet Apps outside the browser with > Adobe(R)AIR(TM) > software. With Adobe AIR, Ajax developers can use existing skills > and code to > build responsive, highly engaging applications that combine the > power of local > resources and data with the reach of the web. Download the Adobe AIR > SDK and > Ajax docs to start building applications > today-http://p.sf.net/sfu/adobe-com > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ Create and Deploy Rich Internet Apps outside the browser with Adobe(R)AIR(TM) software. With Adobe AIR, Ajax developers can use existing skills and code to build responsive, highly engaging applications that combine the power of local resources and data with the reach of the web. Download the Adobe AIR SDK and Ajax docs to start building applications today-http://p.sf.net/sfu/adobe-com _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
