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Author Topic: dir pulse length  (Read 2517 times)

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dir pulse length
« on: March 09, 2007, 01:23:41 PM »
Hello.
What does dir pulse mean  in the motor tunning setting? Is it time between dir output change and step impulse?
thanks for reply
michal

Hood

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Re: dir pulse length
« Reply #1 on: March 09, 2007, 01:34:11 PM »
I would imagine that it is simply the length of time of the direction pulse.
Hood

Offline chad

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Re: dir pulse length
« Reply #2 on: March 09, 2007, 04:25:51 PM »
That is a good question..  I am not sure what that is there for any way. The direction pulse is sort of a misnomer. The direction pulse doesn't really pulse, it just goes high for forward and low for reverse.  I suppose if you were going back and forth 2 stepper pulses on the step then you might need to add some time but that would be a very rare instance.   I wonder if it has something to do with macx nc mode or something..


Brian??

Chad
Re: dir pulse length
« Reply #3 on: March 12, 2007, 11:29:42 AM »
I've tried to change the value and look at the signal with oscilloscope. But nothing happens. There is some time before step pulse (20us) is it possible to change it?