Help with 7i77 Fwd & Reverse Pulse Train
15 Jul 2016 16:47 #77512
by sticky
Replied by sticky on topic Help with 7i77 Fwd & Reverse Pulse Train
Okay, with the Hal Meter here is what I am getting:
hm2_5i25.0.encoder.00.input-index - alternates between TRUE & FALSE
hm2_5i25.0.encoder.00.velocity - changes to a very small negative number -.00xxxxxxxxxx
Everything else on that encoder remains unchanged when I turn the handle.
hm2_5i25.0.encoder.00.input-index - alternates between TRUE & FALSE
hm2_5i25.0.encoder.00.velocity - changes to a very small negative number -.00xxxxxxxxxx
Everything else on that encoder remains unchanged when I turn the handle.
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15 Jul 2016 16:51 - 15 Jul 2016 16:54 #77513
by sticky
No, it stayed negative the entire time and only went between -3.9v and -3.75 but not more or less. Is my polarity wrong? Should it be +3.9?
Replied by sticky on topic Help with 7i77 Fwd & Reverse Pulse Train
Do you get +3.9V at some positions?
if you ever get any close to 0V across the A and /A or B and /B you have a wrong connection
No, it stayed negative the entire time and only went between -3.9v and -3.75 but not more or less. Is my polarity wrong? Should it be +3.9?
Last edit: 15 Jul 2016 16:54 by sticky.
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15 Jul 2016 17:20 #77515
by PCW
Replied by PCW on topic Help with 7i77 Fwd & Reverse Pulse Train
If you don get both + and - voltage across A and /A , B and /B and Z and /Z (and never 0V)
you have a mis-connect or open signal
you have a mis-connect or open signal
7I77 P3 DRIVE CN1A
1 A 6
2 /A 16
3 GND 10
4 B 7
5 /B 17
6 +5 NC
7 IDX 5
8 /IDX 15
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15 Jul 2016 20:04 #77526
by sticky
Replied by sticky on topic Help with 7i77 Fwd & Reverse Pulse Train
I'm in! I have encoder Position and count on the Hal meter! I can even see movement on the preview window of linuxcnc when I turn the handle.
Unfortunately, i still have the joint access error whenever I try to move, however.
Unfortunately, i still have the joint access error whenever I try to move, however.
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15 Jul 2016 20:09 #77528
by PCW
Replied by PCW on topic Help with 7i77 Fwd & Reverse Pulse Train
I think this thread hopped the tracks...
please put this in the Joint 0 following error thread
forum.linuxcnc.org/forum/38-general-linu...ollowing-error#77466
please put this in the Joint 0 following error thread
forum.linuxcnc.org/forum/38-general-linu...ollowing-error#77466
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15 Jul 2016 20:14 #77529
by sticky
Replied by sticky on topic Help with 7i77 Fwd & Reverse Pulse Train
Sorry about that! I Have several windows open and accidentally posted to the wrong thread.
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