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I'm trying to get the spindle load reading from my VFD to LinuxCNC so that it can displayed in the GUI.

The VFD I'm using to control the spindle motor in my mill is a simplistic Emerson/Nidec M100. While reading the manual for this VFD I noticed that it has one digital output available which can be set to output various different parameters.

 

The output from this pin seems to be frequency or PWM based.

 

Would it be possible to use a PWM signal as input to a Mesa card?

My current setup is a 7i96S and 7i84 and I realize that in order to connect a pin with it's own 24V supply to a normal input I'd probably have to use an optocoupler.

The parameter I'm after in the VFD is called Percentage Load (4.020). The manual for the VFD is available but be aware it's one of the most cryptic manuals I've ever come across: www.nidec-netherlands.nl/media/2019-freq...ss3-0478-0352-03.pdf



 

In my old config i have connected all the driver fault with this


# --- ALL-LIMIT ---
net all-limit <= hm2_7i76e.0.7i76.0.0.input-11
to put the machine on estop when a driver failed
How can i do that in my new config?

In linuxcnc rufe ich das Programm center-hole-mm.ngc auf.

Die Routine fährt die Bohrung in x und y an findet die Mitte .
Dann noch einmal im verlangsamten modus x y an ,bleibt dann beim 2.
manchmal beim 3, mal stehen.
%
G21 F200

#1000=30 ;max radius

G91 G38.3 Z[-1]
#1001=#5061
#1002=#5062
f300
G91 G38.2 X#1000
#1003=#5061
G90 G0 X#1001
G91 G38.2 X[0-#1000]
#1004=#5061
#1001=[[#1003+#1004]/2]
G90 G0 X#1001

G91 G38.2 Y#1000
#1005=#5062
G90 G0 Y#1002
G91 G38.2 Y[0-#1000]
#1006=#5062
#1002=[[#1005+#1006]/2]
G90 G0 Y#1002


G91 G38.2 X#1000
#1003=#5061
G90 G0 X#1001
G91 G38.2 X[0-#1000]
#1004=#5061
#1001=[[#1003+#1004]/2]
G90 G0 X#1001

G91 G38.2 Y#1000
#1005=#5062
G90 G0 Y#1002
G91 G38.2 Y[0-#1000]
#1006=#5062
#1002=[[#1005+#1006]/2]
G90 G0 Y#1002


F10

G90 G0 X[#1003-0.125]
G91 G38.2 X0.4
#1003=#5061
G90 G0 X[#1004+0.125]
G91 G38.2 X-0.4
#1004=#5061
#1001=[[#1003+#1004]/2]
G90 G0 X#1001

G90 G0 Y[#1005-0.125]
G91 G38.2 Y0.4
#1005=#5062
G90 G0 Y[#1006+0.125]
G91 G38.2 Y-0.4
#1006=#5062
#1002=[[#1005+#1006]/2]
G90 G0 Y#1002

#1007=[#1003-#1004+[5]]
#1008=[#1005-#1006+[5]]
#1009=[[#1007+#1008]/2]
#1010=[atan[#1002]/[#1001]]
#1011=[sqrt#1001*#1001]+[#1002*#1002]

(debug,Xdia #1007 Ydia #1008 Dia #1009 Ang #1010 Dist #1011)

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Does this help?

linuxcnc.org/docs/html/examples/mpg.html