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28-09-2017 #1
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01-10-2017 #2
Last edited by Schematicsman; 01-10-2017 at 12:55 PM.
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01-10-2017 #4
as Clive said
wire N/C switches in series
it should be the safer option as the machine will stop if a wire breaks
as this is more likely than a two core cable being short circuited
(although it could happen if a cable is crushed)
the last diagram of post 11 is for 1 axis ,
you will need three pairs of N/C switches for the 3 axis
as mach 3 only homes 1 axis at a time you could connect all 6 switches in series and use just 1 input
JohnLast edited by john swift; 01-10-2017 at 10:47 PM.
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02-10-2017 #5
Hi there John but your drawing has com and NO pin connected and mine is NC and COM pin on mini limit switches...
check my pic of 2 switches for one axis in series connected and tell me if I have wired it correctly???
Then which one of the COM or NC(NO) is GND or +5V and which one signal???
also Can I use all ground connections from that free connector on the right side of the board near 24V that says::--->> C NO 0-10V GND-<<<---?????
on this pic??????
I'm confused
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but your drawing has com and NO pin connected and mine is NC and COM pin on mini limit switches...
check my pic of 2 switches for one axis in series connected and tell me if I have wired it correctly???Click image for larger version.
With a multi meter is is very easy to check you have it OK. You can also check if the two grounds ie the 5V one and the one you referred to are indeed connected together. If you are not sure use the 5v ground..Clive
The more you know, The better you know, How little you know
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02-10-2017 #7
now I have seen the photo of your micro switch
I can see why you are confused
on my diagram the N/C contact is shown as the centre terminal
and on your switches the N/C terminal is at the opposite end to the common
John
PS
I can not find any details of the board to tell if the unused GND
terminal can be used as an additional Ground / common for your switches
you will have to check for continuiy with the switch common terminal
or use an additional terminal block to connect all the common switch wires together to a single wire from the switch common terminal
Last edited by john swift; 02-10-2017 at 11:15 AM.
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02-10-2017 #8
Hi,there Clive I was saying that Johns pic of two limit switches in Normally Closed connection at the top of this page looked different to my limit switches in NC connection. that's all I guess the the limit switches were different, but thank you both for being patient and very supportive,as I wouldn't even get this far.:)
Now My machine is a cnc6040Z USB 3 axis and I would like to know how and what I need to select from Step 1: of the installing of Mach 3.exe :::of this pic
And then from Step 2: after installation on this pic---->
ect ect..thank you sorry to be a pain but i'm learning allot from you guys :))Last edited by Schematicsman; 02-10-2017 at 02:21 PM.
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