Mesa 7i76e setup help!

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9 years 10 months ago #83720 by vmihalca
Replied by vmihalca on topic Mesa 7i76e setup help!
Yes it worked! :D Thanks!
How can I change the selected axis in the UI when I switch between X and Z ? I suppose this should be doable! :)

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9 years 10 months ago #83742 by andypugh
Replied by andypugh on topic Mesa 7i76e setup help!
Axis has some pins to allow you to choose the active axis from the GUI, but I don't think it has a way to change the radio buttons from HAL.

linuxcnc.org/docs/2.7/html/gui/axis.html#_axisui_pins

It is possible (I haven't tried it) that Axis follows the selection on halui: halui.joint.N.select
linuxcnc.org/docs/2.7/html/man/man1/halui.1.html

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9 years 10 months ago #84699 by vmihalca
Replied by vmihalca on topic Mesa 7i76e setup help!
Hi guys and happy holidays!
So far with your help I've managed to get my control box done.
I was trying today to wire configure my limit switches for the lathe.
For X axis I have set the limit switch to be Minimum X Travel & Home Axis
For Z axis I have set the limit switch to be Maximum Z Travel & Home Axis
From pncconf I have set the home search to be towards negative for X and toward positive for Z.
When I'm trying to home the axis, it travels to the limit switch, it hits the switch, backs off then it searches slower and then I get
"joint 0 on limit switch error" for X axis and joint 2 for Z axis
The limit switches are wired as normal closed.
Any idea why this error occurs & how should I fix it?

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9 years 10 months ago - 9 years 10 months ago #84700 by PCW
Replied by PCW on topic Mesa 7i76e setup help!
One simple thing to check is if the limit switch polarity is right
With a 7I76 / 7I76E and NC switches(tied to field power) you should use the "-not" input pins
for limit and home switches (since these will be true when the switch is actuated as LinuxCNC expects)
Last edit: 9 years 10 months ago by PCW.

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9 years 10 months ago #84701 by vmihalca
Replied by vmihalca on topic Mesa 7i76e setup help!
They are, I have checked the invert checkbox. Without the invert checkbox, I was getting that error when starting linuxcnc.

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9 years 10 months ago #84702 by jtc
Replied by jtc on topic Mesa 7i76e setup help!
if you are using limit switches has a home switch you need to use HOME_IGNORE_LIMITS

linuxcnc.org/docs/html/config/ini-homing...#_home_ignore_limits

João

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