jlviloria wrote:Andy the feedback system is encoder, brand bei motion system company, encoder industrial.
8i20 card is capable of?
It should be, though the drive will be operating at its limits, so would need heatsinking and fans cooling. The 8i20 has a max of 30A so even at full current it would slightly under-drive the motors. I very much doubt that it matters for any practical machining operation.
I want to know how I can apply the 8i20 card to control the servo motor is full economic.
They only (easily) work with a Mesa interface card, and I would like to hear from PCW about whether he thinks that they would be suitable. The 8i20 is a lot less "Industrial Strength" than the original drives, but also very much cheaper.
On this page
support.automation.siemens.com/US/llisap...10803980&treeLang=en
there is this document:
support.automation.siemens.com/US/llisap...0&forcedownload=true
Which seems to indicate that there is some form of pulse-coder inside the motor, which I think is probably the Hall sensors mentioned in the first link. (connected to the "signal connector"
I think all the manuals are also available in Spanish:
It is much easier to control a brushless motor with Hall signals, and I don't see any suggestion that they used a different method.
Have experience with this board.
Yes, I wrote the LinuxCNC driver for it, and also the HAL component needed to drive brushless motors in general.
Friend if that board can control my servomotors, what else do I need? another board.
Yes, you need one of the Mesa PCI cards. I am not sure if a 5i25 or a 5i23 is the most appropriate. You then need some interface boards. If the PCI card is a 5i23 then you would connect the 8i20 via a 7i44. If you used a 5i25 then you would use a 7i74.
In both cases you need an encoder interface card, and probably quite a lot of general-purpose input/output.
One thing that hasn't need said yet is that LinuxCNC ought to be able to run both sets of axes, you would have XZ and UW axis pairs. I am not sure that the GUI preview can show that properly though.
Another thing, the HAL, simulates a PLC? or need a PLC to control turret, charge pump, spindle, lubrication and other things?
There is a PLC called Classic Ladder included in LinuxCNC
linuxcnc.org/docs/html/ladder/ladder_intro.html
But charge pump, spindle, lube and coolant are handled by LinuxCNC and HAL. You can control the toolchanger in ClassicLadder, by using a HAL component, or by a G-code subroutine, depending on what is best suited.
