7i76e step dir signal missing for stepgen type 0
05 Sep 2024 12:34 #309404
by Traken
7i76e step dir signal missing for stepgen type 0 was created by Traken
Hello everyone, I'm trying to configure linuxcnc 2.10 and mese 7i76e and I don't have a step/dir signal at all, but when I switch stepgen to type 2, there is a signal, but it's probably not correct because the machine loses steps.
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05 Sep 2024 13:57 #309411
by PCW
Replied by PCW on topic 7i76e step dir signal missing for stepgen type 0
It probably means that you have the step time too short for
the drive to recognize the step pulses (type 2 is quadrature
so has square wave signals that are quite wide at slow speeds)
the drive to recognize the step pulses (type 2 is quadrature
so has square wave signals that are quite wide at slow speeds)
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05 Sep 2024 14:33 #309414
by Traken
Replied by Traken on topic 7i76e step dir signal missing for stepgen type 0
ok, but why don't I have a signal on Stepgen Type 0, the oscilloscope doesn't show anything
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05 Sep 2024 14:39 #309416
by PCW
Replied by PCW on topic 7i76e step dir signal missing for stepgen type 0
Do you see a signal with type 2?
What is the step length set to?
What is the step length set to?
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05 Sep 2024 14:41 #309417
by Traken
Replied by Traken on topic 7i76e step dir signal missing for stepgen type 0
Yes i see signal type 2 step length 5us
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05 Sep 2024 14:45 #309419
by PCW
Replied by PCW on topic 7i76e step dir signal missing for stepgen type 0
Maybe you have the step length too short for the scope to catch
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05 Sep 2024 14:52 #309420
by Traken
Replied by Traken on topic 7i76e step dir signal missing for stepgen type 0
Is this correct for it to work on stepgen type 2?
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05 Sep 2024 15:03 #309421
by PCW
Replied by PCW on topic 7i76e step dir signal missing for stepgen type 0
All modes work (0,1,2), but the steplength setting
only affects the step length in modes 0 and 1.
only affects the step length in modes 0 and 1.
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05 Sep 2024 15:15 #309422
by Traken
Replied by Traken on topic 7i76e step dir signal missing for stepgen type 0
How can I diagnose why it's not type 0? Maybe it's the Ethernet cable's fault?
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05 Sep 2024 15:18 #309423
by PCW
Replied by PCW on topic 7i76e step dir signal missing for stepgen type 0
Its most likely a hal file setting thats wrong: The step length
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