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cheap Pentium J2900. i just posted my test results with settings few days ago in a thread called Pentium J2900 fanless pc test results, you can compare it with yours.

I'm afraid there is still a bug when generating the ini/hal.

scale in need to be set in the encoder config (signals -> scale):


and out in the joint pwm/dir config (joint -> General -> Scale):

I do get emails if I request a new password, but I never get any notifications for new replies.

Will post a latency histogram on Thursday after a business trip.

Which hardware/ pc are you using?

 

Ok. Guess if they work for you they work for everyone.

Problem solved ¯\_(ツ)_/¯

Oh i am sure:

Based on what im reading, it does seem ill need a larger card to handle all the limit switches and 3 encoders, one for each hand-wheel. I will prob go RJ45 as the parallel ports are less and less these days.

Thinking this guy, not cheap but one stop shop correct?
store.mesanet.com/index.php?route=produc...id=399&search=7I76EU

cmorley wrote:

Is the Fanuc style of Gcodes display really better then linuxcnc's?

 

Not in my opinion.

There are quite a few characteristics with Fanuc (and other commercial offerings) which are user-unfriendly compared to LCNC.  The gcode display is a good example of that.

Another one I hate is when my Fanuc 21TB removes the tool offset when I switch from MDI to jogging and then to some other mode.

I wouldn't be so sure.  I haven't received the moderator emails (email for every single post) since March, and it was sporadic before that.  I haven't received an email for a thread I asked to be notified of replies for in ... years.  

At this point it's not a complaint, I've just accepted it, getting an email for every post is excessive anyways.  

yip, very similar to what i am having on mine, interesting to see your latency histogram figures.

i still see occasional 1+ms packets once in a while mostly when I heavily use disk or usb which interrupt pci bus, or may be it is just noise and bad cable, but as i mentioned hm2_eth can work around it unless you get something over 3-4ms or 3-4 long packets in a row. then it will error out with can't finish read.

cheers!

slightly used JGL-80/1.5R24 for sale.
About 60-80 hours of work 1500$ + shipment
Can add FR-D720S-1.5K-CHT + FR-PU07 (both slightly used) for another 200$

Has its configuration for mesa / rs485

Hello EtherCAT gurus,

After generous help from OncedLoved and AI we have reached the end of our troubleshooting patience trying to resolve the strange behavior of my new closed loop VDF (Cumark 15 KW) connected to LinuxCNC via EtherCAT (non- CiA402).

Current Condition:

• The VFD is properly set up for the spindle (motor parameters and encoder) and it runs perfectly using the keypad.
• The drive successfully enters OP mode when LinuXCNC starts up and the PDOs are displayed in halshow (see attached screenshot and xml)
• In halshow, when I set Ref 1 (motor speed) to 500 and ControlWord to 2178 (decimal for hex 0x0882 = Start Command), the spindle instantly runs to 500rpm as expected.
• After a few seconds the motor speed changes to 2178 rpm! As if the motor reference value is the decimal start command value. This can happen from 10-90 seconds after the spindle is turned on.
• Then I set ControlWord to 2177 (decimal for hex 0x0881 = Stop Command), and the spindle unreliably either:
  • Turns off after a delay of 30 to 120 seconds, or
  • the motor speed changes to 2177 rpm after a similar delay range, and then turn off after and additional delay range.
• As a result, the spindle eventually turns off but not instantly.
• Actual values Act1 and Act2 are either displaying the wrong value or there is also a delay.
• This strange behaviour happens when controlling the VFD from TwinCAT as well. So I am guessing that something in the drive is not setup correctly.

Questions:

1. What is causing this inconsistent delay behaviour?
2. Anyone experienced in custom EtherCAT configurations (non-CiA402)?
3. How do I convert decimal values transmitted from the VFD  to legible Drive Status Word: (vfd manual page 59 section 6.05)

Attached is:

1. ethercat-conf.xml (just testing the VFD - slave 0)
2. generic ini and hal files for testing
3. spreadsheet of VFD ethercat relating settings and PDO mapping
4. Link to vdf and ethercat card pdf manuals, and xml from Cumark.
5. screenshot of the lcec hal pins when spindle off and on
6. Pictures of the machine frame build and spindle for your interest

It would be great to get this running and I am sure others would find this useful otherwise I would switch for Modbus or analog (not ideal).

Your expertise in this nuanced topic would be greatly appreciated!


Background about the Build in case you are interested:
CNC milling machining for my business in designing and building scientific instrumentation. The frame is made out mineral casting by Muller (Germany). The travel is 600mm X x 500mm Y x 350mm Z. It has 23 23-bit absolute encoders, AC Servos driven by EL8 Leadshine drives. It has a DECI 24K rpm, 15 kw continuous, 18 kw peak HSK 63f liquid cooled direct drive spindle controlled by a CUMARK closed loop VFD hopefully via ethercat.

To check, in halcmd:

sets b-index-enable true

and watch b-index-enable in halshow

Then move the axis past an index mark

b-index-enable should go false when the index is detected

hello,I've managed to set my PID.I've mounted an encoder directly on my machine B axis. My encoder is of the phase type A+,A-;B+,B-;Z+,Z-.the feedback is correct on my axis position. However, it's impossible to detect my Z0. I have a 7i96s and I've connected my two Z+,Z- wires to pins 13 & 14 of TB2 on my card. My .hal file is correctly configured for homing with this Z phase. I've tested 5 encoders of the same type. but I can't find the Z pulse.Is there a trick? Can anyone help me? Thanks