> -----Original Message----- > From: Jon Elson [mailto:[email protected]] > Sent: September-15-20 8:50 AM > To: Enhanced Machine Controller (EMC) > Subject: Re: [Emc-users] False mesages at lcnc launch > > On 09/15/2020 08:40 AM, Gene Heskett wrote: > > > > Axis X Fault > > Axis Z Fault > > Axis X Fault > > Axis Z Fault > > > Note that a lot of drives present the fault signal when > disabled. I have had to build a module to "cover" that > signal when not enabled so that LinuxCNC can be brought out > of E-stop. > > Jon
I did the same thing with a small PIC micro-controller because the STMBL drives fault on low motor voltage so the fault is there before the DC High voltage is applied which causes the ESTOP which prevents the DC High Voltage from being turned on which causes the STMBL drive fault... All because the system enable switches on the DC power supplies for the various motors and also asserts the drive enable. There was probably a way to fix that in the HAL file but this system had to work with both Win-XP/MACH3 and LinuxCNC and MachineKit for the Beagle. All three systems attached to the BoB via a PC based parallel port connection but how the port signals are created varies with the system. In the case of the: LinuxCNC PC it can use the stock parallel port or the MESA 7i92H Raspberry Pi4 the MESA 7i92H BeagleBone Black the Xylotex BBB_DB25 (haven't tried that in a while) WIN-XP either PC parallel port or USB Smooth Stepper. It's been an interesting research project. John Dammeyer > > > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
