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vger
06-26-2009, 08:14 AM
I picked up 4 sets of compumotor indexers and drivers that are fairly old. The drivers are M series microstepping (25,000 steps/rev) and the indexers are 2100 series. Everything works, but the indexers take an unusual command set (via RS 232 or IEEE 488) of the form:

MN A10 V2 D35000 G

Where the MN is "goto position", A10 is acceleration rate, V2 is velocity, D35000 is the step count, and G is "go"

Does anyone know of a software package (CAM) that will deal with this type of command language?

Thanks

Steve

samco
06-26-2009, 08:44 AM
Can you remove the indexer? IF they are these drives
http://www.parkermotion.com/manuals/drives/MDrive.pdf then it looks like the indexer is an external device. The drives look like they take normal step/dir. emc2/mach/turbocnc/whatever will drive these with no issues.

sam

vger
06-30-2009, 07:17 AM
Samco,

Yeah, I can run em without the indexer, but with the upper frequency limit of the parallel port the max speed is really slow. A 25 Khz step rate gives 1 revolution per second (60 rpm). The indexer (commanded via RS232) will run it much much faster. Talk about quiet and smooth!!!

I'll keep looking, maybe someone somewhere has the solution. Perhaps using EMC and some creative programming.

Steve

samco
07-01-2009, 02:01 PM
for around <$100 you can get a mesa printer port card that does hardware step generation (it will do closed loop servo also). (48 i/o) Emc2 has some sample configs for these.

Do some research though :)

7I43

http://mesanet.com/fpgacardinfo.html

(they also have some other cards that are supported by emc2 (pci))

sam

vger
07-03-2009, 09:01 AM
samco,

Thanks for the link. That may be the way to go for these drivers. Their SoftDMC software looks like it would be fairly easy to use as well. Thanks again.

Steve

tiger1
07-03-2009, 09:30 AM
I am looking for someone fimilar with Camsoft PC based machine controls? Anyone who has use their software and boards?