LinuxCNC_Documentation.pdf 3.7.11.3 Home and Limit Switch wiring options

More
22 Nov 2019 08:09 #150883 by mdm55
I am in the process of setting up a mill for linuxcnc and I am having trouble with section 3.7.11.3 of "LinuxCNC_Documentation.pdf." It seems to me that the following is incorrect since it describes the two figures has having the same behavior with respect to switch actuation:

"The figures below show the general idea of wiring multiple switches to a single input pin. In each case, when one switch is
actuated, the value seen on INPUT goes from logic HIGH to LOW."

In the first figure, the logic state is LOW and actuation of one switch will cause the input to go HIGH.
In the second figure, the logic state is HIGH and actuation of one switch will cause the input to go LOW.

Am I missing something or is this a documentation error?

Please Log in or Create an account to join the conversation.

More
22 Nov 2019 10:57 #150896 by Leon82
I think it depends on the brakout board.
something like normally open or closed, or on a card it can probably be programmed.

On my breakout board I had to invert the pin if I recall correctly.

You will need to set your home sequence for your joints, 0 1 2 ECT.

Please Log in or Create an account to join the conversation.

Time to create page: 0.175 seconds
Powered by Kunena Forum