0-10v Servo Control with 7i76E
is an option (though a bit overkill with 6 channels)
The 7I76E analog output is not terribly fast as it's intended
for normal spindle control and the isolation limits the PWM
frequency and thus filter bandwidth.
My idea is to load 7i76e_7i76x1_7i77x1D firmware and just make a small board to add 1 fast analog output. But I don't know if this is possible and did anyone do it?
It just takes a long time to buy a new card.
The driver is: Unidrive sp1404
I look at the manual and I'm not sure there is no step direction controll.
Manual : www.nidec-netherlands.nl/media/2133-freq...s11-0471-0002-11.pdf
The source for frequency slaving mode may be quadrature A/B encoder signals or Frequency and Direction. With the latter care must be taken to
ensure that the D set-up time (10s) is observed or pulses may be lost. The frequency slaving input must be selected as F and D or quadrature to
match the source mode. The input mode is selected by Pr 3.38 which defines the encoder type. The default for source and destination drives is
quadrature A/B mode, unlike previous products which used F and D only.
Now I need to redesign the dashboard for new drivers. I have three free drivers. But they do not accept step and direction.
I want to make a new MESA configuration. And this 7i76E board should remain for the next project.
Can they work together Mesa 7i93 + mesa 7i48 ?
Is there a ready firmware for this configuration. Thanks!
But you would need to also consider the position feedback part of the equation so something like the 7i48 might be better,
But the 7i48 is not really compatible with the 7i92. You would normally use:
7i92 + 7i77 (note that the 7i77 could also be connected to the header on the 7i76E)
7i93 + 7i48 (or 7i33TA)
(All assuming that you want to continue with Etthernet as the link, If not then the 5i24 PCI card + 7i48 is an option.)
There are two styles of Mesa cards, 50-pin (HD) and 25-pin (DB)
They both offer advantages and disadvantages. (50 pin have 24 IO pins per header + GND and DB25 have 17 + GND)
You need to decide which way to go fairly early in the process as the card selections are different but overlapping. (there is no Resolver interface for DB25, for example)
Both types support additional Smart-Serial cards connected via CAT5 cables.