x & y axis doesn't move
02 Aug 2013 16:48 #37346
by b2unit
x & y axis doesn't move was created by b2unit
linuxcnc 2.5.2(2.5.3) on D525MW w/ 5i25 & 7i76
and samsung servo motor for each axis.
I was working on very basic configuration.
not that big problem for make 3 axis move before this problem..
the situation I got is
z axis still can move but x, y axis doesn't move..I didn't change anything.
I made connection directly to computer via smartjog program.
In smartjog program make all 3 axis move via jog button but I couldn't make x & y axis move in linuxcnc and pncconf.
In this situation which point I have to check first? I'm so embarrassed..
and samsung servo motor for each axis.
I was working on very basic configuration.
not that big problem for make 3 axis move before this problem..
the situation I got is
z axis still can move but x, y axis doesn't move..I didn't change anything.
I made connection directly to computer via smartjog program.
In smartjog program make all 3 axis move via jog button but I couldn't make x & y axis move in linuxcnc and pncconf.
In this situation which point I have to check first? I'm so embarrassed..
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02 Aug 2013 21:34 #37360
by PCW
Replied by PCW on topic x & y axis doesn't move
Do the X and Y DRO readouts change when you jog X or Y?
How are the drives enabled?
How are the drives enabled?
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02 Aug 2013 21:41 #37361
by b2unit
Replied by b2unit on topic x & y axis doesn't move
you mean when I jog X or Y in linuxcnc? yes. DRO read outs changed.
I couldn't understand 'how are the drives enables?' means..I'm super newbie.
I couldn't understand 'how are the drives enables?' means..I'm super newbie.
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02 Aug 2013 22:29 #37363
by PCW
Replied by PCW on topic x & y axis doesn't move
Looks like you have a step/dir driven servo system.
The motor drives will have an input that needs to be
driven to enable the drives. (when not enabled they will not respond to
step/dir inputs and the motor shafts will be free turning)
This enable signal should come from the interface hardware and
be controlled by linuxcnc
Another possible cause of no motion,
(assuming the step/dir inputs are wired correctly)
is that the drives are not configured for step/dir position mode control.
The motor drives will have an input that needs to be
driven to enable the drives. (when not enabled they will not respond to
step/dir inputs and the motor shafts will be free turning)
This enable signal should come from the interface hardware and
be controlled by linuxcnc
Another possible cause of no motion,
(assuming the step/dir inputs are wired correctly)
is that the drives are not configured for step/dir position mode control.
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02 Aug 2013 23:05 #37369
by b2unit
Replied by b2unit on topic x & y axis doesn't move
yes. step/dir driven servo system.
x, y, z axis are all under the same condition and
only z axis could controlled by linuxcnc w/5i25 & 7i76.
It's very odd to me.
I couldn't find any option like enable signal in pncconf..
please let me know about setting up for enable signal in 5i25&7i76 situation.
thanks a lot.
x, y, z axis are all under the same condition and
only z axis could controlled by linuxcnc w/5i25 & 7i76.
It's very odd to me.
I couldn't find any option like enable signal in pncconf..
please let me know about setting up for enable signal in 5i25&7i76 situation.
thanks a lot.
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03 Aug 2013 01:25 #37371
by PCW
Replied by PCW on topic x & y axis doesn't move
normally in your hal file you would have
axis.0.amp-enable-out
linked to the X axis enable hardware
which _might_ be something like this:
net X_Axis_Enable axis.0.amp-enable-out hm2_5i25.0.7i76.0.0.output-08
(assuming your drive enables can be driven by the 7I76 outputs and X axis
enable happens to be connected to the 7I76's output 8)
Do you know how your drives are wired to the 7I76?
specifically, where are the drives enabled connected?
axis.0.amp-enable-out
linked to the X axis enable hardware
which _might_ be something like this:
net X_Axis_Enable axis.0.amp-enable-out hm2_5i25.0.7i76.0.0.output-08
(assuming your drive enables can be driven by the 7I76 outputs and X axis
enable happens to be connected to the 7I76's output 8)
Do you know how your drives are wired to the 7I76?
specifically, where are the drives enabled connected?
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08 Aug 2013 21:30 - 08 Aug 2013 21:31 #37496
by b2unit
sorry for late..
here's my hal file. I think there's servo enable command
but please check this file.
next..I'll check physical wiring but I didn't make any changes..so weird.
Replied by b2unit on topic x & y axis doesn't move
sorry for late..
here's my hal file. I think there's servo enable command
but please check this file.
next..I'll check physical wiring but I didn't make any changes..so weird.
Last edit: 08 Aug 2013 21:31 by b2unit.
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08 Aug 2013 22:25 - 08 Aug 2013 22:28 #37499
by PCW
Replied by PCW on topic x & y axis doesn't move
I dont see any I/O the would enable the servo drives at all
This might work if the drive enables are hardwired "on"
But its not clear if this is the case or not
EDIT:
For servo drives especially, they should not enabled by default but only when LinuxCNC enables them. This may require wiring changes
This might work if the drive enables are hardwired "on"
But its not clear if this is the case or not
EDIT:
For servo drives especially, they should not enabled by default but only when LinuxCNC enables them. This may require wiring changes
Last edit: 08 Aug 2013 22:28 by PCW.
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09 Aug 2013 11:43 #37515
by b2unit
Replied by b2unit on topic x & y axis doesn't move
thanks for the advice.
situation changed! the problem was hardwire.
thanks again
situation changed! the problem was hardwire.
thanks again
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