That sounds a lot like the UHU_ESTOP circuit. I've attached a PDF of it. Maybe that will help. John
> -----Original Message----- > From: Sven Wesley [mailto:svenne.d...@gmail.com] > Sent: December-08-20 3:17 PM > To: Enhanced Machine Controller (EMC) > Subject: [Emc-users] 7i96 multi wire input > > Friends, > > I am in the process of refreshing a CNC that has been running in "temporary > state" the last 12 years, time to give it an overhaul. I've found the magic > little piece we all call 7i96. It will do magic. > > The servo drives have been running flawlessly and the plan is to keep them. > They have a neat error/reset feature via two pins and the old parallel port > BOB supports it. If one drive or an emergency stop is triggering the stop > pin, all drives will be halted by the BOB. > The manual for the drive says: > > > > > > > > *Error line is pin number 6 in the Main connector and is a dual purpose, bi > directional line.This pin is �active low�, meaning that the line is > normally high indicating no problems andnormal operation. The drive will > stop if this pin is pulled low (grounded) by one of thesesources:EXTERNAL > activation; The line can be pulled low by an external source (CNCsoftware, > E-stop, etc). .... INTERNAL activation; The line is pulled low by the drive > itself due to a faultcondition.* > > Am I totally off the chart if I wire all the drives' pin number 6 together > and connect them to one of the inputs on the 7i96 and get it to stop the > program with a big alert? And maybe add a mechanical switch shortcutting to > ground for those panic moments? > If I am not totally stupid, what would the Mesa pin config look like? > > All the best, > Sven > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users
UHU_ESTOP.pdf
Description: Adobe PDF document
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