Also, all three inputs use the same input pin for each axis, 10 for x, 11 for y and 12 for the z. I have all three inputs enabled in Mach3, (++, - and Home) for each of the axis. I don't know if that voltage is correct but it does show that all 3 circuits are functioning exactly the same and that all of the switches are connected NC. If I engage any of the switches from any of the circuits, I get approximately 11 vdc. All three of the above circuits show zero volts to ground in a normal state. I have checked continuity of the switches for all of the axis and see no difference in the measurements with my Fluke meter. When on the diagnostic tab, I can see the switches for x and y light up the appropriate input light, but the z axis never indicates anything and will not trigger a stop. The problem I'm having is that no matter how I configure the settings in ports and pins/inputs, I cannot get the z axis switches to do anything. All of the grounds are tied together as in the Gecko manual.
#GECKODRIVE G540 MANUAL SERIES#
The two z axis switches are wired in series and connected to input 3. The y axis switch is connected to input 2. As I have it wired, I have both of the x axis switches wired in series and connected to input 1 of my G540. I have two switches for the z axis, one at the top and one at the bottom. I have one switch for the y axis with adjustable stops on each end. I have two switches for the x axis, one on each end. Which will double as home switches be good units to achieve best repeatability. I would still recommend that the switches Having said that lots of people do it this way without problem. If a Y axis limit switch was accidentally triggered while Mach was trying to home the X axis then homing is compromised and a later crash Limit switch 'string' opens then Mach will interpret that event as home switch for the axis being homed. When homing the machine temporarily looks to the limit switch assigned to the axis being homed as home switch. You will no doubt have read that you can combine home and limit switches and in interests of saving inputs and the number of switches
#GECKODRIVE G540 MANUAL HOW TO#
How to handle each 'out of bounds' excursion. You will have to inspect the machine and decide 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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