Last night I finished the wiring phase of my project of replacing the
old Chopper Drivers and Vexa steppers on a D&M4S mini mill with a
Gecko G540 and KL23H284-35-4B stepper for the Z axis and 2
KL23H276-28-4B steppers for the X and Y axis.
EMC picked everything up quite nicely - I still have to sort out the
charge pump.. but that's just details.. I'm quite impressed with the
G540 and the new steppers.. they move FAST and QUIET. The previous
incarnation of the system was moving at a top speed of about 9ipm for
cutting and maybe as fast as 15ipm for rapids (and that was on a good
day) The new system is running up to 60ipm for rapids!
All went VERY well with a couple of minor issues:
1) Moving fast is not an issue..going slow is. I haven't completely
narrowed down where it starts having issues.. but it's around 5-10 ipm.
(Kind of off topic for this group.. but.. I'll throw it out there
anyway)
2) In the previous incarnation I was using a Campbell break out board
with the old chopper drivers and a 4 channel solid state relay to
control the spindle on/off (with plans for some other things like
vacuum pump and swarf-sucker) The Gecko 540 looks like it grounds the
output channel instead of sending a + signal to the output channel.
My Relay has only 1 ground, and 4 inputs. Is there a realistic way
that I can control this relay or do I need to just go get a couple of
single channel relays and rework it?
Any ideas would be appreciated.
Thanks,
Michael
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