开云体育

I'm a little confused on the wiring of my Rutex drives. Perhaps someone can
help? There is a line "stepper/spi" what is it for?
and "ERR/DOUT" what is this one for?

and last, the step and direction are 0v-5v. There is no ground? doesn't
there have to be a current flow?

Bob

Robert,

To get your drive going, don't worry about Stepper/spi or Err/Dout -
these are used when you're trying to interface it to a PC for changing
parameters using the test software. You should have your motor power
applied to the two power input pins and an auxialliary 24 volt (nominal)
power feed going into the 6 pin connector. You reference your step and
direction signals to this ground or 0 V - i.e. the gound line of you
auxilliary supply i.e. pin 2 of J1.

You should also be aware that the servo tuning utility that you download
from the Rutex website is fantastic to allow you to quickly tune your
PID settings. It gives the motor a step impulse and then plots the
response on the pc's screen. You will see from the graph whether you
need more/less damping etc. etc. You'll need to make a custom cable to
use the test software - but it is worth the effort!

Cheers, Peter

Quale, Robert wrote:

About the ground again. The step and direction are from the computer. The
auxiliary supply is isolated from the pc. The step and direction lines can
not get to the ground on the auxiliary supply unless the ground is tied back
to the pc port. Where is the 5v going? doesn't there have to be a current
flow?

What am I missing here?????

Bob

Hi:

I'm not fully back yet, but thought I would add a note on the SPI/Dout
rutex lines. I am adding capability to read those lines and do a tuneup test
from Mach2 on those linesl. Both Rutex and Gecko are excellent servo drives
, if you follow Marris's directions for tuning his gecko's they come into
tune very easily, but since the rutex is an spi device, I have decided to
add a small SPI driver section to the Mach2 driver for a graphical tuneup
for the RH990's.

Thanks,
Art
www.artofcnc.ca

Art.
That sounds great, when do you think I will be able to tune the rutex
through mach2?

It might be faster than me getting an old windows computer together.

About the ride, glad you had a safe trip. I would like to do the same
thing, where did you start from?

Bob

Bob:

Started from Halifax, crossed NS then ferried to NFLD, and drove to Gros
Morne national park. Great place. I got lucky, no rain for 7 days..very hot
as well which is not normal for Newfoundland..
The rutex tunng will take a little while, but the SPI code is started
already.. I suspect a few weeks to see the tuning startup..

Thanks,
Art
www.artofcnc.ca

--- In mach1mach2cnc@..., Art <fenerty@a...> wrote:

I have decided to add a small SPI driver
section to the Mach2 driver for a graphical tuneup
for the RH990's.

Now that has made my day!. Excellent news Art. I presume that means
configuring the drive via SPI will be available? (eg, setting the
encoder division ratio)

Hi:

I have not yet gotten to the point that I know the divisions can be set via
SPI, but if they can I will allow for that.

Art
www.artofcnc.ca

--- In mach1mach2cnc@..., Art <fenerty@a...> wrote:

I have not yet gotten to the point that I know
the divisions can be set via SPI, but if they
can I will allow for that.

Rutex don't seem to have made the RT990H chip datasheet available,
even though it is refered to as the source of the SPI info.

The RT990A chip datasheet has a full list of SPI register addresses
and flags but I don't know if it is the same as the RT990H