7i76E Spindle configuration
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18 Sep 2025 20:45 #335168
by RobotMatic
Replied by RobotMatic on topic 7i76E Spindle configuration
thank you for your words, I am very sorry about Mr. PCW, I respect him and I appreciate him.
I want you to be able to put yourself in my shoes as a LinuxCNC user. I have an application (pcconf) that I have used without problems in previous versions, which is not working today. I create a thread in this forum seeking help because my ability is not enough to solve the problem, I receive help and instructions to resolve it, I try to do what is requested as best as I can, I send videos, images, explain, answer more than once what I am being asked, it is not a bad attitude, it is my lack of ability that cannot satisfy those who are helping me and it is respectable that they eventually reach their limit, but there was no bad intention!!.
I need to control a VFD with the ACM-AVI signals + 10VCC (YASKAWA GA500) The Pncconf wizard should have given me the TB4 configuration when I selected 7i76e, but it didn't. that is the problem !!
There is no tension on pins (1-2) (1-3) of the TB4
I was able to manually program turning on-off-enabling, but when I wanted to program the hal pwm component and assign it to spindle out, it did not allow me.
So, as a user, I wonder why the PncConf Wizard application did not provide me with the TB4 configuration. And that is my problem to solve.
I know that the problem is overwhelming me, I just need to solve it because I have been an intensive user of linuxcnc since 2008, I use it every day of my life since then, I have learned a lot but not everything and I continue learning.
thank you for your time, I greatly appreciate it
I want you to be able to put yourself in my shoes as a LinuxCNC user. I have an application (pcconf) that I have used without problems in previous versions, which is not working today. I create a thread in this forum seeking help because my ability is not enough to solve the problem, I receive help and instructions to resolve it, I try to do what is requested as best as I can, I send videos, images, explain, answer more than once what I am being asked, it is not a bad attitude, it is my lack of ability that cannot satisfy those who are helping me and it is respectable that they eventually reach their limit, but there was no bad intention!!.
I need to control a VFD with the ACM-AVI signals + 10VCC (YASKAWA GA500) The Pncconf wizard should have given me the TB4 configuration when I selected 7i76e, but it didn't. that is the problem !!
There is no tension on pins (1-2) (1-3) of the TB4
I was able to manually program turning on-off-enabling, but when I wanted to program the hal pwm component and assign it to spindle out, it did not allow me.
So, as a user, I wonder why the PncConf Wizard application did not provide me with the TB4 configuration. And that is my problem to solve.
I know that the problem is overwhelming me, I just need to solve it because I have been an intensive user of linuxcnc since 2008, I use it every day of my life since then, I have learned a lot but not everything and I continue learning.
thank you for your time, I greatly appreciate it
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18 Sep 2025 21:20 #335172
by tommylight
That is almost always a locale issue and/or language issue, so for future reference you can boot from USB with LinuxCNC and use Live session to create a PncConf config while in English language, and also test the machine if it is attached to that PC, all from a Live session, but do not forget to save/copy that config to the internal hard drive/SSD/NVME. Then you can reboot and use the existing installation in your language to run that config.
Replied by tommylight on topic 7i76E Spindle configuration
Try setting Locale to UTF-8, google how to do that on Debian.So, as a user, I wonder why the PncConf Wizard application did not provide me with the TB4 configuration. And that is my problem to solve.
That is almost always a locale issue and/or language issue, so for future reference you can boot from USB with LinuxCNC and use Live session to create a PncConf config while in English language, and also test the machine if it is attached to that PC, all from a Live session, but do not forget to save/copy that config to the internal hard drive/SSD/NVME. Then you can reboot and use the existing installation in your language to run that config.
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18 Sep 2025 21:41 #335173
by unknown
Replied by unknown on topic 7i76E Spindle configuration
The OP was supplied with a config as requested for 4axis and a spindle, to 24k I think, by PCW. Even with is he could not get an output, taking this into account PncCONF is not the issue.
If the OP could be so kind as to supply a picture of the wiring of the actual spindle connector and a diagram as well of how he wired it I think that would be quite helpful. This is the second time I have made this request.
To OP seems to have missed or ignored the bit about PWM not being involved in configuring the spindle.
Just making a guess I suspect that spindle + and spindle - are not being supplied with an isolated voltage. If this is the case spindle out with not have a voltage that is in line with the selected spindle speed.
Wiring of the opto isolated outputs can be tackled later.
To reiterate the OP has a config supplied by PCW, which we can take as being gospel and if the board is wired correctly will work.
For testing I would not have the spindle connected, I would just be monitoring the spindle output with a multimeter referenced to spindle - .
This is actually how I went setting up my spindle, but using a smart serial board as I required the servo driver to be some distance from my 7i76 and did not want a small analogue voltage being transmitted over a long cable. Paranoia may have had been high that day.
If the OP could be so kind as to supply a picture of the wiring of the actual spindle connector and a diagram as well of how he wired it I think that would be quite helpful. This is the second time I have made this request.
To OP seems to have missed or ignored the bit about PWM not being involved in configuring the spindle.
Just making a guess I suspect that spindle + and spindle - are not being supplied with an isolated voltage. If this is the case spindle out with not have a voltage that is in line with the selected spindle speed.
Wiring of the opto isolated outputs can be tackled later.
To reiterate the OP has a config supplied by PCW, which we can take as being gospel and if the board is wired correctly will work.
For testing I would not have the spindle connected, I would just be monitoring the spindle output with a multimeter referenced to spindle - .
This is actually how I went setting up my spindle, but using a smart serial board as I required the servo driver to be some distance from my 7i76 and did not want a small analogue voltage being transmitted over a long cable. Paranoia may have had been high that day.
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18 Sep 2025 22:12 #335174
by PCW
Replied by PCW on topic 7i76E Spindle configuration
There is no tension on pins (1-2) (1-3) of the TB4
That means no Spindle output is possible.
The 7I76/7I76E/7I76EU do not supply the 10V.
The spindle output on these cards works as a
potentiometer. Typically the 10V is supplied by
the VFD.
That means no Spindle output is possible.
The 7I76/7I76E/7I76EU do not supply the 10V.
The spindle output on these cards works as a
potentiometer. Typically the 10V is supplied by
the VFD.
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18 Sep 2025 22:36 #335175
by RobotMatic
Replied by RobotMatic on topic 7i76E Spindle configuration
Thank you all for the responses. The VFD GA500 is already installed in the machine and I don’t have it here. I have an LS600 on my work desk which I am using for the tests. I will try to send you the information you are requesting as soon as possible.
PCW !. Thank you for coming back! From the heart!
I advance the board that I am using in the TB4 connector, I believe, as PCW explains, that I am not supplying the 10vcc. I am going to check the LS600.
PCW !. Thank you for coming back! From the heart!
I advance the board that I am using in the TB4 connector, I believe, as PCW explains, that I am not supplying the 10vcc. I am going to check the LS600.
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18 Sep 2025 22:54 #335176
by RobotMatic
Replied by RobotMatic on topic 7i76E Spindle configuration
PncConf works in Live!!!!! it was the language !!!!!!!!!! I am very happy!!!! thank you!!!!!!!!
I continue now with the VFD!!!
Thank you!!!!!!!!!!
I continue now with the VFD!!!
Thank you!!!!!!!!!!
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19 Sep 2025 00:24 - 19 Sep 2025 00:32 #335179
by RobotMatic
It works!!!! The VFD was not sending the voltage!!!.PCW ,Tommyligth,unknowm !!! thank you very much from the heart!!!He learned a great lesson today!! it works !!
Replied by RobotMatic on topic 7i76E Spindle configuration
It works!!!! The VFD was not sending the voltage!!!.PCW ,Tommyligth,unknowm !!! thank you very much from the heart!!!He learned a great lesson today!! it works !!
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Last edit: 19 Sep 2025 00:32 by RobotMatic.
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19 Sep 2025 00:55 #335181
by tommylight
Replied by tommylight on topic 7i76E Spindle configuration
Why is your DVM on the floor ???



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19 Sep 2025 12:30 #335187
by RobotMatic
Replied by RobotMatic on topic 7i76E Spindle configuration
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20 Sep 2025 00:18 #335203
by RobotMatic
Replied by RobotMatic on topic 7i76E Spindle configuration
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