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Hi Friends, 

Not sure this is the right place for this but here we are. I just about finishing transitioning my Queenbee Pro ( Link ) from mach 3 to LCNC with the help of a mesa 7i96s card. I have been following  this guide  as much as made sense and was able to get through the setup. My intent was to get though the setup then tune everything in once i am sure it all works. I am building a tangential cutter with a servo motor as the cutting head so i went with an XYZA setup and didn't include a spindle.

Now that i am through the setup i use the new desktop shortcut to open and start to try and run the machine and i click the estop in the top right (gmocappy) and get the following message, "External ESTOP is set, could not change state!". 

I have two e stops but one is configured in the pncconf as a custom input (was planning on putting them in series eventually or making the custom input an estop function if i can figure that out) and they're both NC. It doesn't go through any motors/drivers its simply ran from +24V Power Supply --> External Estop-->  Mesa Pin. Is this correct??

I am happy to provide any files or logs that can assist. 

 

I just received a XP200-30pl servo drive and I am now looking for a manual in English. The documentation sent was a one page sheet all in Chinese I noticed in this thread that there is a I/O drawing in English. If someone has a English manual for the XP200 please send let me know.

Thanks
Scot Wilson

I have not found any formal documentation on the encoders or any note in the machine’s schematics, so I don’t know.

You did say in a previous response that you thought my encoders are 1M units per revolution, in response to a post where I provided the model number.

Tomorrow I will do more testing - I will try to verify one complete rotation and see how the counts check out.

What is the counts per turn value for the encoder?

Back from holidays, finally got to dig a little deeper with the oscilloscope. I managed to figure out the polarity of the connections and alas, I am now receiving the response from the encoder!

Some values are showing up on my HAL Show and now I need to figure out if everything is working correctly and whether or not I need to create a custom setup string.

After a slight turn (a few degrees) of the motor shaft in the reverse direction my HAL show reads:

 

Suggestions for next steps are encouraged.

I have the same drive, did you solve this problem? I have an xml from lichuan that appears to be designed for use with Beckhoff software, I don't know if it will work for Linuxcnc

In both cases, if the encoder is scaled correctly, the encoder velocity will read
machine units per second for linear axis and revolutions per second for spindles.
(there's also revolutions/distance per minute encoder velocity pin)

So if you can command a maximum speed (10V on an analog system)
you can measure the velocity/rpm with the encoder feedback.

For linear axis you will have disconnect the motor from the ballscrew to do this test
also the maximum actual speed will be 10-20% less than the speed at 10V
because the PID loop needs some overhead.

If the machine uses mm units, 200m = 0.2 mm/division
and a velocity of 1 means 1mm/s

In halscope what are the units ?
For example if set f-error to 200m/div what and i see 1 div how this translates to mm ?
Also in cmd-velocity if i set to 1/div how this translates to mm/sec ?

I have seen a post by @andypugh that showed an alternative method of pid tuning
know anyone the link of this post ?