I'm having some problems and it seam to be that I have not got pwmgen.N.scale set right. I can not follow the manuals. Listed below is ever thing I could find. If I read it correctly the value should be some where from -1 to 1 but that does not work.
If I set pwmgen.0.scale to 1 as soon as the amps enable I get a following error. Set it to 5.5 and ever thing seam to work except homing it faults out with a following error as soon as it try to make the final move. The only way that I have got homing to work is to set MAX_VELOCITY to 1 when it should be 4.16667 witch gives me 250 IPM. Donnie http://www.linuxcnc.org/docs/html/man/man9/pwmgen.9.html * (float) pwmgen.<chan>.scale -- Scaling factor to convert value from arbitrary units to duty cycle. http://www.linuxcnc.org/docs/2.1/html/config/stepper/index.html setp pwmgen.0.scale 1800 # Change to your spindle's top speed in RPM This assumes that the spindle controller's response to PWM is simple: 0% PWM gives 0RPM, 10% PWM gives 180 RPM, etc. If there is a minimum PWM required to get the spindle to turn, follow the example in the nist-lathe sample configuration to use a scale component. http://www.linuxcnc.org/docview/html//man/man9/pwmgen.9.html *pwmgen.*/N/*.scale* float rw http://linuxcnc.org/docs/html/man/man9/hostmot2.9.html Parameters: (float rw) scale: Scaling factor to convert 'value' from arbitrary units to duty cycle: dc = value / scale. Duty cycle has an effective range of -1.0 to +1.0 inclusive. http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Released * hostmot2 changes: Config changes required! pwmgen.scale now works as advertised; stepgen timing params are "u32 ns" instead of "float seconds"; and stepgens now have a .enable pin which needs setting. http://www.linuxcnc.org/docs/devel/HAL_User_Manual.pdf 7.2.4 Parameters (F L O A T) pwmgen.<chan>.scale - Scaling factor to convert value from arbitrary units to duty cycle. ------------------------------------------------------------------------------ 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 Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
