Best/Easiest HW to support 24V DC Brush Servos?
22 Oct 2014 02:20 #52254
by dsa815
Best/Easiest HW to support 24V DC Brush Servos? was created by dsa815
Hello,
I have a Sherline CNC Mill with 24V DC brushed servos with high resolution quadrature encoders. I want to replace the current servo controller and Windows based SW and move to LinuxCNC. Can anyone suggest some reasonably-priced HW for these servos?
Thanks.
I have a Sherline CNC Mill with 24V DC brushed servos with high resolution quadrature encoders. I want to replace the current servo controller and Windows based SW and move to LinuxCNC. Can anyone suggest some reasonably-priced HW for these servos?
Thanks.
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22 Oct 2014 03:46 #52256
by BigJohnT
Replied by BigJohnT on topic Best/Easiest HW to support 24V DC Brush Servos?
If the drives are ok then the Mesa 5i25 7i77 combo works well. Are your drives analog input velocity drives?
JT
JT
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22 Oct 2014 03:52 #52257
by dsa815
Replied by dsa815 on topic Best/Easiest HW to support 24V DC Brush Servos?
Thanks for the quick reply. The servo drivers are some crazy garage-shop design. I want to replace them as well...
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22 Oct 2014 14:20 #52266
by DaBit
Replied by DaBit on topic Best/Easiest HW to support 24V DC Brush Servos?
Leadshine DCS810 maybe? Can be had for less than $100.
To drive it you can use a parallel port setup or Mesa setup (e.g. 5i25+7i76).
I have no experience with this particular drive, but their stepper drives are good.
To drive it you can use a parallel port setup or Mesa setup (e.g. 5i25+7i76).
I have no experience with this particular drive, but their stepper drives are good.
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22 Oct 2014 23:58 #52289
by dsa815
Replied by dsa815 on topic Best/Easiest HW to support 24V DC Brush Servos?
Thank you.
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23 Oct 2014 08:15 #52316
by andypugh
Pico have some experience with Sherline machines
www.pico-systems.com/smallpwm.html
I think that all Pico hardware requires a parallel port.
Mesa have a range of servo drives, this one might work:
store.mesanet.com/index.php?route=produc...th=65&product_id=137 You would need two for 3 axes, with a channel spare, encoders connect through that back to the FPGA card.
The cheapest FPGA card to connect it to a PC and LinuxCNC is probably
store.mesanet.com/index.php?route=produc...83_85&product_id=291 Which again needs a parallel port for supported LinuxCNC drivers.
If you prefer PCI (and who wouldn't) then the 5i24 is probably what you want:
store.mesanet.com/index.php?route=produc...83_85&product_id=297
If you are feeling adventurous then you can use the same driver with an ethernet-connected FPGA card, but it isn't especially mainstream or well-suppported yet:
store.mesanet.com/index.php?route=produc...e=7i80&product_id=62
Replied by andypugh on topic Best/Easiest HW to support 24V DC Brush Servos?
Can anyone suggest some reasonably-priced HW for these servos?.
Pico have some experience with Sherline machines
www.pico-systems.com/smallpwm.html
I think that all Pico hardware requires a parallel port.
Mesa have a range of servo drives, this one might work:
store.mesanet.com/index.php?route=produc...th=65&product_id=137 You would need two for 3 axes, with a channel spare, encoders connect through that back to the FPGA card.
The cheapest FPGA card to connect it to a PC and LinuxCNC is probably
store.mesanet.com/index.php?route=produc...83_85&product_id=291 Which again needs a parallel port for supported LinuxCNC drivers.
If you prefer PCI (and who wouldn't) then the 5i24 is probably what you want:
store.mesanet.com/index.php?route=produc...83_85&product_id=297
If you are feeling adventurous then you can use the same driver with an ethernet-connected FPGA card, but it isn't especially mainstream or well-suppported yet:
store.mesanet.com/index.php?route=produc...e=7i80&product_id=62
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