hello all, I need some help and suggestions on interfacing dmm dyn4 servo driver with Linuxcnc At the moment I have 4 liner axis bellow is a rough outline of what i have in mind. My 2 questions are:
Dose this make sense or is there a better way to do this? (am I completely out to lunch) What hardware should i use to bring these signals in and out of linux cnc bearing in mind i will need IO for limit switches cycle start and feed over rides ect. I was leaning toward a mesa 7i92 because of its network interface allowing me to keep all my io wiring short and clean just leaving me one network cable to control computer. but not sure what to use for daughter cards but am open to other suggestions. current plan for linear axis - Run the servo in position mode - Feed the servo drive a step and direction signal from linuxcnc let the drive do its magic with its own pid loop. - Take the encoder signal from the servo drive for linxcnc to use in displaying position in the gui ect. - Take the position error signal from the drive and feed this back to linuxcnc for warning error ect servo spec for step pulse 5vdc +-10% max pulse freq 500khz min plse with 0.8us servo spec encoder signal output 5vdc standard line drive output with +A -A +B -B Z z pulse 0.7us servo spec position error analog out put of 0 to 3.3 vdc with zero error at 1.65vdc I can supply the spec sheets and manuals from dmm if more info is needed thanks in advance for any help or thoughts you can provide. linden ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users