Stepper lose one step if direction is changed
11 Sep 2012 07:37 #24152
by sk800s
Replied by sk800s on topic Re:Stepper lose one step if direction is changed
Thank's all for support
I've no documentation of the aa2901. Anaheim Automation say it's the same as MBL600. But on my board are no jumpers.
The solution is really, that my drivers use CW/CCW pulse input.
I've built a circuit with 3 LS7400 to convert the stepp/direction to CW/CCW.
No the CNC machine works right. The position seems to to always back to zero.
Thank's all.
I've no documentation of the aa2901. Anaheim Automation say it's the same as MBL600. But on my board are no jumpers.
The solution is really, that my drivers use CW/CCW pulse input.
I've built a circuit with 3 LS7400 to convert the stepp/direction to CW/CCW.
No the CNC machine works right. The position seems to to always back to zero.
Thank's all.
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11 Sep 2012 08:25 - 11 Sep 2012 08:26 #24155
by andypugh
Replied by andypugh on topic Re:Stepper lose one step if direction is changed
sk800s wrote:
No need for that circuit, LinuxCNC can output the correct pulses.
www.linuxcnc.org/docs/html/hal/rtcomps.h...stepgen_step_types_a
(You want step-type 1)
The solution is really, that my drivers use CW/CCW pulse input.
I've built a circuit with 3 LS7400 to convert the stepp/direction to CW/CCW.
No need for that circuit, LinuxCNC can output the correct pulses.
www.linuxcnc.org/docs/html/hal/rtcomps.h...stepgen_step_types_a
(You want step-type 1)
Last edit: 11 Sep 2012 08:26 by andypugh.
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