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LinuxCNC
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General LinuxCNC Questions
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Turret Rotating to fast and missing steps
Turret Rotating to fast and missing steps
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07 Oct 2022 17:01 #253708
by Turners
Am I correct a signal gets sent to the bob and when it supposed to change direction does It flick a relay. On the board .?
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07 Oct 2022 17:43 - 07 Oct 2022 17:45 #253709
by Aciera
A relay would be unusual for a direction signal. From the parallel port pin it would likely go through an optocoupler and that would change the signal going to the motor drive.
edit:
the easiest would be to use a voltmeter and check if the voltage changes when changing direction.
Last edit: 07 Oct 2022 17:45 by
Aciera.
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08 Oct 2022 10:20 #253742
by Turners
Hi
Where do I check and how I have a multimeter but not really a electrical person trying to learn.
Without you guys I wouldn't have got this far so thanks
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08 Oct 2022 11:36 #253745
by Aciera
measure the voltage between GND and the Outputpin that carries the direction signal on the breakout board. alternatively you can switch the wires from the direction signal of the X and Z axis and see if the symptom moves to the other axis.
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08 Oct 2022 12:51 #253751
by Turners
Would that be in the pinouts on stepconfig I can change?
Do I check pins like this. On board
what do I set multimeter to?
Should I get a 12v plus then a 12 minus for reverse.? Asking in advance
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08 Oct 2022 12:54 #253752
by Aciera
On the parallel port pins you should see voltages no higher than 5V so set the volmeter to the "20V" range.
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08 Oct 2022 15:05 #253754
by Turners
Multimeter not working for me lolDo you mean if I change like thisIt tested x and the axis only moves one direction is that what you mean?
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08 Oct 2022 17:39 #253766
by Turners
If I change a axis pins to different pins say 8 and 9 if that stays the same ie a spins one way on both buttons does that tell me a boards gone ?
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LinuxCNC
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General LinuxCNC Questions
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Turret Rotating to fast and missing steps
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