Hello Squan09 unfortunatly we couldn't solve the problem completly. what we do was make a downgrade from linuxcnc 2.7 to 2.6 that solve the problem a bit but we are not able to set the step space less than 3500. at 2500 the motors doesn't move. tomorrow i will post my configuration maybe it can be useful for you.
Thanks. Do you know roughly how fast you are able to move the motors in RPM? Is it the servo period that will limit the max speeds or are there other parameters that I can change to maximize RPMs?
Here are the .ini and .hal files I am using. I am currently focused on the X axis so the others can be ignored. I am using the drive setup with 8x microstepping and it is not attached to any lead screws for testing. For now I would like to tune it to get performance similar to when I use the auto tune program supplied by Leadshine.
I am also using the drive in the common anode cofiguration (image attached), with PUL+ and DIR+ connected to +5Vp on pin 6 on the 7i76 nad PUL- and DIR- connected to STEP0- and DIR0- on the 7i76.
Please let me know if there is any other info I can provide and thanks for the help.
A couple of observations:
I looks like you have only fixed the max_error and PID values for the X axis
also the X axis has some odd settings (max velocity of 50 IPS but max output of 6.25 IPS)
I would fix the max _error/PID values for all axis and remove all the max_output statements as a start
EDIT: in fact with the max_output setting of 6.25 and a step scale of 1600 and 1/8 ustep ratio (1" per turn)
I would expect to throw a following error at 375 RPM
Thank you. Changing MAX_OUTPUT was exactly what I needed. I was not able to remove it though. I got an error that the variable was not found, so I just changed it to be equal to STEPGEN_MAXVEL. I've attached my updated .hal and .ini for reference.
