Mach cant tell which axis is out of bounds nor can it tell which direction triggered the limit. Because all of the limit switches are combined If any one limit switch goes open the machine faults outĪnd you will have to manually bring the machine back into bounds before you can reset it.
They are all wired normally closed and in series and assigned to just one input.
Limit switches are fitted at the end of all three axes, one at each end for 6 switches. Repeatable quality switches/sensors to establish it. Given that your home switches set the zero machine reference of your machine at each turn on it makes sense to use the best and most I bought and fitted three top quality roller plunger microswitches and fitted one to each axis and assigned one input each as a home switch. I was using a single PP and BoB at the time and so 5 input was all I had and if I'm not mistaken the 540 has the same limitation. Seemed easy to understand at the time was to have one home switch per axis, one Estop and one limit switch input for a total of 5 inputs. Switches individually also, two per axis but you would run out of available pins with the 540. Was when I was setting up my mill for the first time.Īs Tweakie has shown you it is possible to assign an input pin to each home switch, one per axis. I'm guessing you're setting up Mach for the first time and are probably somewhat confused about the choices to make, I certainly
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