Machsupport Forum
Mach Discussion => General Mach Discussion => Topic started by: cncworks on November 06, 2005, 03:28:35 AM
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I'm gonna have to start out with kind of a general description and question.
My previous setup: Cnc Crafter, Microsystems DOS CNC Controller. Two parallel ports for the signals. I think the home/limits are normally open, in parallel.
Bought Bob Campbell's Breakout Board Plus, wired it in and began setting up Mach3.
Limit switches light up appropriate led's on breakout board like I think they should, but step/dir led's stay constantly lit with no changes. Can't get out of estop. At this point I can't see any signs of interaction between the breakout board or CNC and Mach3.
Looking for some ideas for what these symptoms might suggest.
Donn
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hi i use same board as you
have you set up the inputs in mach 3 to suit this board and check they are set to operate at the correct level ie active high / active low depending on how you have wired in your switches as defult the pin and port numbers are wrong
I tend to wire active high the voltage is held down while switch is closed 0 volts to input if swith opens voltage comes up high and this is a limit condition
i find with this way i could only use only 1 set of limit conections on bobs board else it did not see the limit wired both switches in serise with each other and back to one input
bill