7i76E Spindle configuration

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17 Sep 2025 16:49 #335132 by unknown
Replied by unknown on topic 7i76E Spindle configuration
I think it may have been a typo, but even then, there is a far better way to have multi versions of Linuxcnc, that's the beauty of building from source, if you can follow instructions you can do it, and taking advantage of the run in place facility, aka RIP.
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17 Sep 2025 22:21 #335143 by RobotMatic
Replied by RobotMatic on topic 7i76E Spindle configuration
Videos 7i76e spindle failure  
thankkkkkkkssssss !!!!!!
I have performed all the tests before starting the forum. It does not output 10 VCC, it does not regulate voltage, that's why I started the thread.
I am confused with this situation, the board was working perfectly on a lathe with version 2.7.15. Now I need to install it on another machine. I tried 2.8 - 2.9.4 - 2.9.5 the result is always the same, it does not regulate voltage. But there is something that is not connecting, linuxcnc shows good operation in Halshow, but it does not go out through the 7i76e.

I am going to reinstall linuxcnc from scratch again and see what happens.
thank you all for trying to help me!!! I'll post updates soon!!!
 

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17 Sep 2025 23:25 #335145 by unknown
Replied by unknown on topic 7i76E Spindle configuration
It won't have anything to with the Linuxcnc installation. If there was an issue, something missing, Linuxcnc would produce an error.
M
Maybe if you could take a picture of the power wiring to the board, that may show something. I've looked at things in the past for hours on end and missed a simple error.
I can understand how things can get very frustrating.
I take it you have measured the output voltage when not connected to the spindle input ?
The spindle does take a variable voltage and not a pwm signal, just asking as you were concerned about not being able to select pwm. Sorry for these simple questions, please dont take them as an insult .
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18 Sep 2025 01:10 - 18 Sep 2025 01:12 #335147 by PCW
Replied by PCW on topic 7i76E Spindle configuration
This is not a LinuxCNC version issue.

This is a hal setup or hardware issue.

1. Do you have +10V on 7I76E SPINDLE+ relative to 7I76E SPINDLE- ?
2. Can you set the spindle speed to 1/2 way up and then run:

halcmd show all  > all.txt
 and post the all.txt file here

(you run halcmd from a terminal window when LinuxCNC is running)
 
Last edit: 18 Sep 2025 01:12 by PCW.
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18 Sep 2025 10:15 - 18 Sep 2025 17:46 #335151 by RobotMatic
Replied by RobotMatic on topic 7i76E Spindle configuration
I performed a fresh installation of the entire system.
I updated everything.
configure the wired network connection to the motherboard and check with the PING command
using the wizard I created the configuration 7i76e (it did not allow me to configure TB4)

- Linux 6.1.0-39 rt
- Linuxcnc 2.9.5 
- New config Pncconfig wizard

 
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Last edit: 18 Sep 2025 17:46 by RobotMatic.

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18 Sep 2025 14:11 #335155 by PCW
Replied by PCW on topic 7i76E Spindle configuration
Changing the OS/LinuxCNC version is a complete waste of time.

This is most likely a hardware or hal file setup issue.

I explained how to debug this issue, but was ignored, I'm out.

 
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18 Sep 2025 15:07 #335156 by RobotMatic
Replied by RobotMatic on topic 7i76E Spindle configuration
PCW :I am very sorry about this and I thank you immensely.I did everything I could to understand you.I wanted to make sure I had a clean installation to eliminate my doubts.Thank You.!!!!!

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18 Sep 2025 17:44 - 18 Sep 2025 17:50 #335158 by RobotMatic
Last edit: 18 Sep 2025 17:50 by RobotMatic.

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18 Sep 2025 17:51 - 18 Sep 2025 17:52 #335159 by RobotMatic
Last edit: 18 Sep 2025 17:52 by RobotMatic.

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18 Sep 2025 19:02 #335162 by unknown
Replied by unknown on topic 7i76E Spindle configuration
When you make a config the only changes are made in the linuxcnc/configs directory in your home folder.
No changes are made to any system files, none at all. So it doesn't matter how bad a config is made it does not affect anything outside of the above mentioned directory.
PCW is a very patient member of the forum and the guy that runs Mesa Electronics. This is the first time I have show any frustration with a forum member. Ever.
When you have an issue, with anything in this world, diagnosis follows a process. Whilst it may not make sense to you, it does to those offering advice. To go off do something that is unnecessary and you have been advised not is deeply disrespectful and can quite possibly throw a spanner in the works and bring you back to where you started. Eventually people may come to the conclusion that trying to help is not worth their.
The best course of action would be to go back and follow PCE's advice to the letter, do not skip a step.
For a second time does your spindle controller require an analogue voltage, or does it require a PWM signal. Actually it may be an idea to qualify what controller you are using and any documents pertaining to the spindle controller.

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