On 08/07/2013 12:36 AM, Peter C. Wallace wrote: >> Despite real and described in manual 8i20 pinout differences, I managed >> >to run servo motor. So, the first question: why manual and pinout differs? > Which pinout differences? I am not aware of any
I mean driver parameters and pins and latest hostmot2 manual, where I find 8i20 is http://www.linuxcnc.org/docs/html/man/man9/hostmot2.9.html#8i20 Now I checked command "man sserial" and found: "... Parameters: The following parameters are exported. See the pdf documentation downloadable from Mesa for further details hm2_5i25.0.8i20.0.1.angle-maxlim hm2_5i25.0.8i20.0.1.angle-minlim hm2_5i25.0.8i20.0.1.angle-scalemax hm2_5i25.0.8i20.0.1.current-maxlim hm2_5i25.0.8i20.0.1.current-minlim hm2_5i25.0.8i20.0.1.current-scalemax hm2_5i25.0.8i20.0.1.nvbrakeoffv hm2_5i25.0.8i20.0.1.nvbrakeonv hm2_5i25.0.8i20.0.1.nvbusoverv hm2_5i25.0.8i20.0.1.nvbusundervmax hm2_5i25.0.8i20.0.1.nvbusundervmin hm2_5i25.0.8i20.0.1.nvkdihi hm2_5i25.0.8i20.0.1.nvkdil hm2_5i25.0.8i20.0.1.nvkdilo hm2_5i25.0.8i20.0.1.nvkdp hm2_5i25.0.8i20.0.1.nvkqihi hm2_5i25.0.8i20.0.1.nvkqil hm2_5i25.0.8i20.0.1.nvkqilo hm2_5i25.0.8i20.0.1.nvkqp hm2_5i25.0.8i20.0.1.nvmaxcurrent hm2_5i25.0.8i20.0.1.nvrembaudrate hm2_5i25.0.8i20.0.1.swrevision hm2_5i25.0.8i20.0.1.unitnumber (float, rw) max_current Sets the maximum drive current in Amps. The default value is the maximum current programmed into the drive EEPROM. The value must be positive, and an error will be raised if a current in excess of the drive maximum is requested. ..." Take a look at "max_current" - it does not exist. There are three parameters current-maxlim, current-minlim, current-scalemax instead. While in man9 we can see description of pin "(bit, in) amp-enable Set this pin high to enable the drive.", which I can't find in my halshow. > >> > >> >Another strange thing I noticed is that 8i20 does not react to enable >> >input. I drive it with 12V (Enable in + and Enable in -), but it does >> >not makes sense. It turns on at LinuxCNC startup and turns off at >> >LinuxCNC shutdown instead. I almost fried my motor, thinking the drive >> >was turned off. > > That should not be. > > We made a change in enable and enable masks recently for an OEM > and possible broke something or have a dependence on EEPROM setup that we > should not have. > > We should have updated firmware tommorow that fixes the enable > I think you found the right reason. Will wait for the fixes. ------------------------------------------------------------------------------ Get 100% visibility into Java/.NET code with AppDynamics Lite! It's a free troubleshooting tool designed for production. Get down to code-level detail for bottlenecks, with <2% overhead. Download for free and get started troubleshooting in minutes. http://pubads.g.doubleclick.net/gampad/clk?id=48897031&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
