Connect spindle VFD to 7i76e, DIR not working
13 Aug 2016 14:09 #78707
by newbynobi
Connect spindle VFD to 7i76e, DIR not working was created by newbynobi
Hallo,
Please find attached the connection diagram of my VFD,
My spindle does 6000 rpm.
I have 10 V on PIN 3, PIN 6 and PIN 8
Giving in MDI
S3000 M3
I get 5 V on PIN2 and 10V on PIN 6 (TB4)
No voltage on PIN 7 of TB4 (thats OK)
Now I do a
S3000 M4
I get 5 V on PIN2 and 10V on PIN 6 (TB4)
No voltage on PIN 7 of TB4 (thats NOT OK)
So spindle does not change direction, as the reverse signal does not arrive at the VFD.
Whatching with halshow:
hm2_7i76e.0.7i76.0.0.spindir
hm2_7i76e.0.7i76.0.0.spinena
hm2_7i76e.0.7i76.0.0.spinout
shows that spindir does get TRUE if I start spindle with M4
Any ides what I am making wrong?
Norbert
P.S. Firmware on 7i76E is hm2/7i76/7i76e_7i76x1_7i74x1D.BIT, flashed about 2 Month ago
Please find attached the connection diagram of my VFD,
My spindle does 6000 rpm.
I have 10 V on PIN 3, PIN 6 and PIN 8
Giving in MDI
S3000 M3
I get 5 V on PIN2 and 10V on PIN 6 (TB4)
No voltage on PIN 7 of TB4 (thats OK)
Now I do a
S3000 M4
I get 5 V on PIN2 and 10V on PIN 6 (TB4)
No voltage on PIN 7 of TB4 (thats NOT OK)
So spindle does not change direction, as the reverse signal does not arrive at the VFD.
Whatching with halshow:
hm2_7i76e.0.7i76.0.0.spindir
hm2_7i76e.0.7i76.0.0.spinena
hm2_7i76e.0.7i76.0.0.spinout
shows that spindir does get TRUE if I start spindle with M4
Any ides what I am making wrong?
Norbert
P.S. Firmware on 7i76E is hm2/7i76/7i76e_7i76x1_7i74x1D.BIT, flashed about 2 Month ago
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13 Aug 2016 14:22 - 13 Aug 2016 14:22 #78709
by PCW
Replied by PCW on topic Connect spindle VFD to 7i76e, DIR not working
Can you check nothing connected except a Ohmmeter across pins 7 and 8 ( + to 8 )
if the meter reading does not change with hm2_7i76e.0.7i76.0.0.spindir state
I would suspect a bad OPTO
Note that you cannot use the screws on the top of the connectors
to measure unless the screws are tight
if the meter reading does not change with hm2_7i76e.0.7i76.0.0.spindir state
I would suspect a bad OPTO
Note that you cannot use the screws on the top of the connectors
to measure unless the screws are tight
Last edit: 13 Aug 2016 14:22 by PCW.
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13 Aug 2016 14:39 #78711
by newbynobi
Replied by newbynobi on topic Connect spindle VFD to 7i76e, DIR not working
Hallo PCW,
checked without the plug and nothing connected:
hm2_7i76e.0.7i76.0.0.spindir = True = about 15 k Ohm
hm2_7i76e.0.7i76.0.0.spindir = False = M Ohm, out of range of my Multimeter
So something is changing.
I checked also
hm2_7i76e.0.7i76.0.0.spinena = True = about 15 k Ohm
hm2_7i76e.0.7i76.0.0.spinena = False = M Ohm, out of range of my Multimeter
So they are behaving the same, but one does work, not the other![:( :(](/media/kunena/emoticons/sad.png)
Norbert
checked without the plug and nothing connected:
hm2_7i76e.0.7i76.0.0.spindir = True = about 15 k Ohm
hm2_7i76e.0.7i76.0.0.spindir = False = M Ohm, out of range of my Multimeter
So something is changing.
I checked also
hm2_7i76e.0.7i76.0.0.spinena = True = about 15 k Ohm
hm2_7i76e.0.7i76.0.0.spinena = False = M Ohm, out of range of my Multimeter
So they are behaving the same, but one does work, not the other
![:( :(](/media/kunena/emoticons/sad.png)
Norbert
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13 Aug 2016 14:50 #78712
by newbynobi
Replied by newbynobi on topic Connect spindle VFD to 7i76e, DIR not working
Solved!!!
As it did work without the plug, I measured again with the plug an tighten screws.
Not working.
I took an unused plug from TB6 with the same connections
All OK!!!!
I have never had a brocken plug, but that seems to be the secret.
At least it is working now!
Thanks from Norbert for pushing me in the right direction.
As it did work without the plug, I measured again with the plug an tighten screws.
Not working.
I took an unused plug from TB6 with the same connections
All OK!!!!
I have never had a brocken plug, but that seems to be the secret.
At least it is working now!
Thanks from Norbert for pushing me in the right direction.
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13 Aug 2016 15:19 #78713
by PCW
Replied by PCW on topic Connect spindle VFD to 7i76e, DIR not working
Sorry for the bad plug
I don't actually think I've seen one before
Glad you are up and running again
I don't actually think I've seen one before
Glad you are up and running again
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