ok - Maybe I can invert it at the drive.. AMC seems to be willy nilly on how it is setup (the 2 drives I have are totally opposite enable.)
On Wed, Jan 29, 2025 at 5:52 PM Peter Wallace <p...@mesanet.com> wrote: > On Wed, 29 Jan 2025, Sam Sokolik wrote: > > > Date: Wed, 29 Jan 2025 17:41:45 -0600 > > From: Sam Sokolik <samco...@gmail.com> > > Reply-To: "Enhanced Machine Controller (EMC)" > > <emc-users@lists.sourceforge.net> > > To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net > > > > Subject: Re: [Emc-users] 7i97 issue with pwmgen.04 > > > > ugh - I had mouse pads.. > > Anyway - I did some testing. > If you set 'setp hm2_7i97.0.pwmgen.04.enable.invert_output true' > > the output instantly goes to -10v > When you enable the pwmgen - then it goes to 10v.. > > It works normally if you don't invert the enable. > It does invert the enable though (this drive needed an inverted enable to > work) > > sam > > Yeah, you cannot do that (invert the enable) on a 7I97/7I97T/7I36 as the > PWM > enable also effects the analog circuitry. It also would enable your drive > (OPTO off) on a watchdog bite or at power up. > > Probably need to use an external relay or form B opto > > > > > On Wed, Jan 29, 2025 at 5:11яяPM Sam Sokolik <samco...@gmail.com> wrote: > > > > > > > On Wed, Jan 29, 2025 at 9:56яяAM Sam Sokolik <samco...@gmail.com> wrote: > > > >> I thought that inverted the enable output? (I mean - it worked for this > >> drive...) The reason I switched to the 4th pwm is that the enable is > >> separated compared to 0-3.. > >> > >> sam > >> > >> On Wed, Jan 29, 2025 at 9:53яяAM andy pugh <bodge...@gmail.com> wrote: > >> > >>> On Wed, 29 Jan 2025 at 14:28, Sam Sokolik <samco...@gmail.com> wrote: > >>> > setp hm2_7i97.0.pwmgen.pdm_frequency 75000 > >>> > setp hm2_7i97.0.pwmgen.00.offset-mode TRUE > >>> > setp hm2_7i97.0.pwmgen.00.output-type 1 > >>> > setp hm2_7i97.0.pwmgen.04.output-type 1 > >>> > setp hm2_7i97.0.pwmgen.04.offset-mode TRUE > >>> > setp hm2_7i97.0.pwmgen.04.enable.invert_output true > >>> > #setp hm2_7i97.0.pwmgen.00.enable true > >>> > >>> > what am I doing wrong? > >>> > >>> The obvious difference is the "invert output" > >>> What happens without that? > >>> > >>> > >>> -- > >>> atp > >>> "A motorcycle is a bicycle with a pandemonium attachment and is > >>> designed for the especial use of mechanical geniuses, daredevils and > >>> lunatics." > >>> яя George Fitch, Atlanta Constitution Newspaper, 1912 > >>> > >>> > >>> _______________________________________________ > >>> Emc-users mailing list > >>> Emc-users@lists.sourceforge.net > >>> https://lists.sourceforge.net/lists/listinfo/emc-users > >>> > >> > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > > Peter Wallace > Mesa Electronics_______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
