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I have just finished my build of a CNC table. I am using a 7i96A controller driving three axes. I cannot get any of the motor to step.
I built a configuration using PnConf , I have a tandem Y axis. I can get nothing to move regardless of which axis I try.
When I power on the system all the motor lock, as I would expect.
I am driving the DM542T differentially and I have nothing connected to the enable inputs of any of the motor driver, which should mean that they are enabled.
I put a voltage meter across the direction input of the Y axis and jogged it forward and revere. I see the input flipping between -5.95 and +4.95 so I think the direction is working but I seem not the be getting stepper pulses.
Can someone suggest the next course of action. I am a bit lost and disappointed that I spend a good deal of time and money on this project.
Anyway, I am looking for suggestions

thanks

Hirst689

So I am new to lcnc...will have to learn halscope...in the meantime out of curiosity...what is the actual feedback looked for that results in error when not found?...

Thanks!

jogging the axis works fine. The machine has a homing switch on the Z axis at the top of its motion range. the .nc file is attached for reference.
 

Alright a few other related forum posts (forum.linuxcnc.org/gmoccapy/34296-xhc-hc04-lost-connection, forum.linuxcnc.org/38-general-linuxcnc-q...-hb04-pendant-issues) convinced me to upgrade LinuxCNC, which appears to have solved the issue.

I upgraded from 2.8 to 2.9.3.

I Have runs som programs but error was stil happening. I have no Tool Change don but i have changed the Ofset tabel in G55 and G54.

than i get a duplicatet items in the file

I'm having problems flashing the controller. I have tried two different STlink v2, but I only get error messages. Does anyone have any idea what the error could be?

 

Comment out any line with "7i76" in the hal file

(Make copy of the hal file first so you wont need to uncomment them when things are working)


also did you:

sudo mesaflash --device 7c81 --spi --addr /dev/spidev0.0 --readhmid

To verify that you have the correct firmware loaded?

 

Maybe I am having a senior moment, but how do you test the step/dir with a 7c81 when you can’t get LinuxCNC to run?

hi
i am cambridgeshire , close to peterbrough . how far are you from there?
M1 is close just how north are you?

im sure folks can help on here etc alot of info etc on the forum now. what is the problem you are having? is there one part you are having issues with? is it linuxcnc side or wiring it up ?


what is the machine in question any photos you can share etc, how much work is already done
what is the system, servos or steppers?
can you share some info here?

i have done many linuxcnc retros, all big iron mind you. laths & mills, and a few old denford mills & Lathes for people over the years... all with mesa cards , using old drives hard ware & new etc.

It is not possible to change a parameter in the hal file from the gui. Is it true?

TheRoslyak wrote:

Again, please clarify which drive you ended up taking. Because a closed-loop drive is sold by the seller at a slightly higher price. This is probably due to the low-level firmware. They might have sent you a cheaper version.

www.rtelligentglobal.com/uploads/Rtellig...ies-User-Manual1.pdf

As per the first post this is an ET60 so it has encoder inputs and associated firmware. The ECR60 is open loop only.
I wonder if you would be so kind as to share your working config?

Thanks, the axes move perfectly!

I've just set the PID parameters for my axes.
i'd like to know if bounces are ok or should i have as few as possible?
because the procedure is very well written, except that it doesn't specify what scale to stop at.
At 50 mv/div, are bounces negligible?

the images are relative to my X axis (with the turret), which is why there are more bounces when drawing. Im actualy at P=125 and F1=1

Slow speed UP (134 mm/min)
 
Slow speed DOWN (134 mm/min)
 
High speed UP (7127mm/min)
 
High speed DOWN (7127 mm/min)
 

I have exactly the same result

Edit: with 1.0 instead of 0.10 this is fine. Thanks a lot 

Since 'ci402.0.pos-scale' is a hal_parameter and not a hal_pin you cannot connect it to other hal_pins. You can only set them in using 'setp'.

As for 'ddt.0.out' that is an OUT hal_pin so it can only be connected to an IN hal_pin, so in your panel you can only connect it to something like a HAL_label to display the value.

linuxcnc.org/docs/devel/html/hal/intro.html

Coincidentally that machine was also the very first machine I ever setup/retrofitted to run Linuxcnc (EMC2 at the time) and it has been running it the longest. But back then it started out as a simple 3 axis control with 3 step/dir commanded servos using software stepgens and no control of the VFDs. (The operator had to manually start/stop the spindles/VFDs.)

Then few years later I added a Mesa 5i25/7i85S combo, to add encoder feedback to close the position loop in Linuxcnc and fast hardware step-generation. Soon after that I used Mb2hal, to add control of the 8 spindle VFDs to Linuxcnc.

I have nearly a 20yr history with this machine since we bought it new, with more than half of those years running EMC2/Linuxcnc.