It also would enable your drive (OPTO off) on a watchdog bite or at power up.
I have a relay that powers the drives that are run from an estop/mesa ssr... So this would not be a problem as if the watchdog bits or whatever - that relay drops out sam On Wed, Jan 29, 2025 at 5:54 PM Sam Sokolik <samco...@gmail.com> wrote: > 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
