I am using the Mesa 5i20 & 7i33 DAC board combination to retrofit a Kasuga mill. I am controlling the spindle thru a VFD that takes the standard 0-10V speed reference plus start and reverse. I am currently working on the problem of outputting a speed command /voltage signal that does not switch to a negative integer/value when I hit m4. The command: m3s3000, for example works fine without the abs component loaded, but M4 will turn the integer output from motion.spindle-speed-out to a negative value, which my vfd won't respond to. I am trying to use the abs component to strip the negative value from the floating point speed command integer coming out of motion.spindle-speed-out.
Below are the corresponding statements from my m5i20_io.hal file: # Set up spindle speed control loadrt abs count=1 net spindle-rpm-cmd motion.spindle-speed-out linkps abs.0.in <= spindle-rpm-cmd newsig abs-spindle float linkps abs.0.out => abs-spindle linksp abs-spindle => m5i20.0.dac-03-value net SpindleOn motion.spindle-on linksp SpindleOn => m5i20.0.dac-03-enable setp m5i20.0.dac-03-gain [SPINDLE]DAC_SCALE #from 5i20ini file# setp m5i20.0.dac-03-offset 80 Looking at the Halmeter pins/signals, the abs component shows up with 3 pins but integer values that appear on the abs.0.in pin never come out on the abs.0.out pin. Zip, nada, no output from abs. Is there a parameter or argument that I am not aware of to make it function properly? Is there something I am missing here? Thanks everyone for considering this. Tom ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
