Question on using proximity sensors as limit switch (Resolved)

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jungle
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Question on using proximity sensors as limit switch (Resolved)

Post by jungle »

I'm testing (on the x-axis) a proximity switch sensor SN04 Inductive Proximity Switch Sensor NPN NC and using my WMPG-4 to jog towards the sensor.
https://www.aliexpress.com/item/3287902 ... 4c4dz83EHe

I have clearpath SDSK motors on router
When I jog slowly at 1x, it seems to stop at the same position, no problem.
When I jog at 10x, it overshoots and hits the sensor.
Isn't it suppose to do a dead stop at the same position, at any speed?
Any settings on the Acorn or clearpath servo I need to adjust?

Thanks,
Paul
Gary Campbell
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Re: Question on using proximity sensors as limit switch

Post by Gary Campbell »

There will always be a certain amount of drive by, and as you have seen, more at higher speeds.

What you may be missing is the the sensor needs to be mounted 90* from it's current position so that the axis can drive by the sensor. Not run into it's end
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jungle
Posts: 2
Joined: Fri Feb 05, 2021 8:48 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
Oak CNC controller: No
CNC Control System Serial Number: none
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No

Re: Question on using proximity sensors as limit switch

Post by jungle »

Gary Campbell wrote: Tue Mar 23, 2021 11:30 pm There will always be a certain amount of drive by, and as you have seen, more at higher speeds.

What you may be missing is the the sensor needs to be mounted 90* from it's current position so that the axis can drive by the sensor. Not run into it's end
Thank you very much, Gary!
It make sense now, I will mount them 90°.
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