I've got a 750w with absolute encoder and brake for my Z axis (RF45 clone). Anyone tried setting the sync mode manually in the HAL file? Or can we set it using ethercat directly in a bash script before starting linuxcnc? I plan to give this a go at some point to see if it gets around our startup issue. (Page 64 of the pdf manual linked by NickH details the setting).
Has anyone also looked at page 56 of the manual PDF? It has "Self-adjusting mode selection" am I too optimistic to think this is an autotune feature? There also seems to be "inertia identification" settings on the next page.
It is a basic dynamic autotune by the look. Looks similar to what my JMC's and older sanyos have. Set a desired stiffness / response, and it deals with the rest.
JMC's autotune is "ok". It did not make the motor perform better than my manual tune. What it did to is take 2 minutes instead of 10 hours to adjust, which is nice
Awesome, that sounds promising, I'll have to give it a go once the servo is mounted on the mill, I already spent my 10h trying unsuccessfully to tune the X and Y steppers with linear encoder feedback - not fun...
steppers? ha. ouch.
my experience with steppers and encoders is that the encoder is good for a safety system to make sure its not lost position, but it is best not to actually try to "drive" the stepper with the encoder feedback. The just don't have the ability to respond.
Has anyone solve "the start lcnc before plug in ethernet cable" issue yet?
i have the same thing but my driver are lichuan closed loop stepper CL3-E86H
I got it to run but still have to do the ritual every times I turn on the machine
Has anyone solve "the start lcnc before plug in ethernet cable" issue yet?
From PCW:
Code:
#!/bin/bash
echo Waiting for control power
(exit 1)
while (($?))
do
ping -c 1 10.10.10.10 >/dev/null 2>&1
done
echo Starting LinuxCNC
linuxcnc /home/cnc/linuxcnc/configs/by_machine.plasmac.axis-2/metric_plasmac.ini
Edit the IP and the location as needed, save to a text file with whatever name .sh, make the file executable in properties.
