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03 Mar 2024 20:48
Replied by PCW on topic 0-10v Servo Control with 7i76E

0-10v Servo Control with 7i76E

Category: HAL

Yes, use a buffer powered by a reference voltage to provide
noise free, accurate voltage PWM
03 Mar 2024 20:46
Replied by besriworld on topic 0-10v Servo Control with 7i76E

0-10v Servo Control with 7i76E

Category: HAL

Thank you for sharing! After simulating the circuit, I changed some resistors. Now I have a faster reaction. It seems that the main problem in my scheme is that I use a common power supply. I have 35mV (Pk to Pk) ripple in the 5V power supply. Do you have any ideas for reducing in power supply ripple or other easy modification in board?

 
03 Mar 2024 15:04 - 03 Mar 2024 15:07
Replied by chris@cnc on topic 0-10v Servo Control with 7i76E

0-10v Servo Control with 7i76E

Category: HAL

I check this on my noise nightmare. 10V Signal and out at 4K and 8K.   0,4V max
03 Mar 2024 14:46
Replied by PCW on topic 0-10v Servo Control with 7i76E

0-10v Servo Control with 7i76E

Category: HAL

Here is the analog output circuit of the 7I97
Note that this uses offset PWM (no direction signal)
It does need an enable signal.

Note that the power for the LCX04s come from a
3.3V reference supply

 

This browser does not support PDFs. Please download the PDF to view it: Download PDF


 
03 Mar 2024 12:10
Replied by besriworld on topic 0-10v Servo Control with 7i76E

0-10v Servo Control with 7i76E

Category: HAL

The problem is that if I put a big capacitor and a resistor, I will add a big delay. I want the spindle to also work as a C axis for milling. I don't know what's wrong. Does anyone have a diagram of the solution that is in MESA card? Or a picture of the output with an oscilloscope?
03 Mar 2024 12:10
Replied by rodw on topic What bit file for a 7i76e + 7i85s

What bit file for a 7i76e + 7i85s

Category: Driver Boards

My Chrome some why don't allow to download... (that is why I have asked, I know it's on the website, just thought it was deleted...)
But tried in Firefox and success...

Yes, I noticed Mesa is not using a SSL certificate on some parts of their website. Maybe they have a http:// link on the download....
03 Mar 2024 12:00
Replied by xenon-alien on topic What bit file for a 7i76e + 7i85s

What bit file for a 7i76e + 7i85s

Category: Driver Boards

My Chrome some why don't allow to download... (that is why I have asked, I know it's on the website, just thought it was deleted...)
But tried in Firefox and success...
03 Mar 2024 09:40
Replied by N3pu on topic Spindle CW and Stop Toggle Button

Spindle CW and Stop Toggle Button

Category: HAL

This seems to work:
loadrt and2 names=spindle_button.cw,spindle_button.stop

# --- SPINDLE-MANUAL-CW AND OFF ---
#net spindle-manual-cw     <=  hm2_7i76e.0.7i76.0.0.input-11

loadrt edge
addf edge.0 servo-thread
setp edge.0.in-edge FALSE
setp edge.0.out-width-ns 18000000

net button_spindle_full <= hm2_7i76e.0.7i76.0.0.input-11
net button_spindle_full => edge.0.in
net button_spindle <= edge.0.out

#Create Spindle-Enable-NOT Signal
loadrt not count=1
addf not.0 servo-thread

net spindle-enable => not.0.in
net spindle-enable-not <= not.0.out

#spindle-enable AND button_spindle THEN spindle Stop
addf spindle_button.stop servo-thread

net spindle-enable => spindle_button.stop.in0
net button_spindle => spindle_button.stop.in1
net spindle-manual-stop <= spindle_button.stop.out

#!spindle-enable AND button_spindle THEN spindle CW
addf spindle_button.cw servo-thread

net spindle-enable-not => spindle_button.cw.in0
net button_spindle => spindle_button.cw.in1
net spindle-manual-cw <= spindle_button.cw.out

Thank you Guys. I begin to love this Software :)
03 Mar 2024 08:10
Replied by N3pu on topic Spindle CW and Stop Toggle Button

Spindle CW and Stop Toggle Button

Category: HAL

Thank you.

I don´t know how to handle my "idea" with a flipflop or a toggle. I also read that some users did more or less similiar things with that kind of component, but not this exactly one. Multiclick sounds very interesting and easy, too. I didn´t knew before.

I wrote my kind of idea with an and + not component. I will give it a try today on the machine. For now it´s just written "offline":
# --- SPINDLE-MANUAL-CW AND OFF ---
#net spindle-manual-cw <= hm2_7i76e.0.7i76.0.0.input-11

#Create Spindle-Enable-NOT Signal
loadrt not count=1
addf not.0 sero-thread

net spindle-enable => not.0.in
net spindle-enable-not <= not.0.out

loadrt and2 count=2

#spindle-enable AND button_spindle THEN spindle Stop
addf and2.0 servo-thread

net spindle-enable => and2.0.in0
net button_spindle hm2_7i76e.0.7i76.0.0.input-11 => and2.0.in1
net spindle-manual-stop <= and2.0.out

#!spindle-enable AND button_spindle THEN spindle CW
addf and2.1 servo-thread

net spindle-enable-not => and2.1.in0
net button_spindle => and2.1.in1
net spindle-manual-cw <= and2.1.out
03 Mar 2024 01:08 - 03 Mar 2024 01:09
Replied by PCW on topic What bit file for a 7i76e + 7i85s

What bit file for a 7i76e + 7i85s

Category: Driver Boards

7i76e_7i76x1_7i85sx2d.bit is the proper bit file

All 7I76E firmware is in the 7I76E zip archive:

www.mesanet.com/software/parallel/7i76e.zip

(There is a link to each card specific support zip file in the specification tab
of that card  in the  Mesa webstore)
03 Mar 2024 00:49 - 03 Mar 2024 01:02
Replied by xenon-alien on topic What bit file for a 7i76e + 7i85s

What bit file for a 7i76e + 7i85s

Category: Driver Boards

Hello!
I want to use 7i76e (REV. C) + 7i85s + 7i85s, but I can't download the archive with the bit files.
Can anybody help me out? (it can be encoder + stepgen for both 7i85s cards)
 
02 Mar 2024 21:30 - 02 Mar 2024 21:44
Replied by Mecanix on topic 0-10v Servo Control with 7i76E

0-10v Servo Control with 7i76E

Category: HAL

edit; ignore that, just noticed the tiny _invert label
02 Mar 2024 21:09
Replied by besriworld on topic 0-10v Servo Control with 7i76E

0-10v Servo Control with 7i76E

Category: HAL

Hi, I can't clear the output voltage ripple ...Does anyone have a photo of the +-10v signal with the oscilloscope.
What can I improve on the scheme?
02 Mar 2024 19:20 - 02 Mar 2024 19:20
Spindle CW and Stop Toggle Button was created by N3pu

Spindle CW and Stop Toggle Button

Category: HAL

Hey

I want to add a hardware momentary pushbutton to Start the Spindle CW if it´s not turning.
If it´s turning (no matter if CW or CCW) and the Button is pushed again the Spindle should stop.

Could someone help me?

I just got the Button configured that it will run the spindle CW by pushing:
net spindle-manual-cw     <=  hm2_7i76e.0.7i76.0.0.input-11

But how should I handle the "if (hm2_7i76e.0.7i76.0.0.input-11 && (spindle-manual-cw OR spindle-manual-ccw)) then {spindle-manual-stop}" ?

Jannik
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