a cheap motor..

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30 Dec 2010 13:01 #6334 by dab77
Replied by dab77 on topic a cheap motor..
BigJohnT wrote:

When you do order don't forget the 50 pin cables to connect it all together...

John

thanks John, i'll remember that!

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30 Dec 2010 14:39 #6335 by PCW
Replied by PCW on topic a cheap motor..
Actually the 7I43 will drive 4 7I29 cards (or 2 7I29s and a 7I37). Even though the 7I29 uses a full 50- pin I/O connector. it only connects to 12 of the 24 signals on the cable, and has an option jumper to select whether it connects to the channel 0/1 or 2/3 signals. This means that 2 7I29s (4 Axis)can connect to a single FPGA card connector. The smaller 7I40 bridge has the same feature.

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30 Dec 2010 17:44 #6336 by dewey525
Replied by dewey525 on topic a cheap motor..
Cool Ty PCW for clarifying. This board is full of great experience with these systems. For Newbs like me trying to work their way to an end result.

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31 Dec 2010 10:59 #6342 by dab77
Replied by dab77 on topic a cheap motor..
PCW wrote:

Actually the 7I43 will drive 4 7I29 cards (or 2 7I29s and a 7I37). Even though the 7I29 uses a full 50- pin I/O connector. it only connects to 12 of the 24 signals on the cable, and has an option jumper to select whether it connects to the channel 0/1 or 2/3 signals. This means that 2 7I29s (4 Axis)can connect to a single FPGA card connector. The smaller 7I40 bridge has the same feature.

Thanks, i have read that, but wasn't sure of clear understanding.
so a configuration like one 7i43, two 7i29s and a 7i37 would be perfect. maybe just to begin i'll prefer the 7i40 that you suggest (money..)

a question: for a further enhancement, will it be possible having this configuration, change the two 7i29 with 4 3phase 8i20?

i know emc support for 8i20 is still in a dev-phase, but in the future i wish is going to work..
what about emc2 and the other mentioned cards?

thanks, Davide.

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31 Dec 2010 16:20 #6346 by PCW
Replied by PCW on topic a cheap motor..
Support for the 8I20 is still beta but the 7I43 can support 6 8I20s via the 7I52 6 channel com / 6 channel encoder daughtercard or even a 7I47 daugtercard (4 channels) though the serial channel pinout is sort of awkward on the 7I47.

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