What am I missing here? I see a NPN output transistor as the source to a sinking input. The sinking input has a 20K input impedance according to specs. I would think if anything, the input may need a 2 to 10K resistor to ground so the NPN can switch reliably. This is totally dependent on the minimum current of the sensor output. ________________________________ From: Gene Heskett <ghesk...@shentel.net> Sent: Wednesday, September 2, 2020 3:53 PM To: emc-users@lists.sourceforge.net <emc-users@lists.sourceforge.net> Subject: Re: [Emc-users] 7i76 input with NPN NO
On Wednesday 02 September 2020 14:07:40 Marius wrote: > I am using a 7i76e which has sinking inputs. The machine was built > using NPN N/O proximity sensors. Am I correct in saying that I have to > pull the sensor output up with a resistor and then connect that > junction to the 7i76 input? > I belive so Marius. Pull that pin up with about a 5k to 5 volts, and short it to ground to activate. > > Regards > > Marius > > > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis Genes Web page <http://geneslinuxbox.net:6309/gene> _______________________________________________ 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
