Proximity switches or limit switches

[chillybo]

Thanks Jazz. Have just had a NPN normally closed proximity switch delivered from Amazon. Im guessing then that with this device I would set the input for it to active high? Im going to have a play with it at the weekend. I have wired a couple of steppers and drivers up to the IPM to get them moving and to get familiar with Mach and the hardware. I'l connect the proximity switch up and see how it works. The electrics and the machine haven't come together yet.

[JAZZCNC]

Thanks Jazz. Have just had a NPN normally closed proximity switch delivered from Amazon. Im guessing then that with this device I would set the input for it to active high?

No that would be Active Low.
Because the type is N/C Mach sees the signal all the time(High) and when signal disappears (low) the pin goes active. So it's (Active Low)
If it was N/O type it would be the reverse. The pin is low and goes Active when the signal is High. (Active high)

Word of caution with the IP/M and it's inputs. They are Non-isolated which means the don't tolerate being miss wired so before you go connecting anything up to them be sure you fully understand what your doing, they don't take prisoners.!

[chillybo]

Nice one. Thanks for explaining this Jazz

[grantx]

Which one did you get? Im looking to get a few as well.

[JAZZCNC]

Which one did you get? Im looking to get a few as well.

Grant if you need any proximity switches I can supply you with some. Drop me an email if need any.