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Author Topic: Spindle Speed Sensor Wiring  (Read 1670 times)

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Spindle Speed Sensor Wiring
« on: January 04, 2017, 11:13:00 AM »
I need help wiring an optical sensor for spindle feedback. I am
electrically challenged so any help is greatly appreciated. My setup:



Gecko G540

FC-03 sensor -


I have a 5 volt 1200ma wall wart.

I have connected the 5v power supply to the VCC and Gnd pins. Both the red
and green LED's light and when I break the sensor the green LED goes out, so
it seems it is powered. If I put a volt meter to the DO and Gnd pin and
break the sensor I get 5.5 volts.

I thought all I had to do is connect a wire from the DO pin to the Gecko
input pin(12 for this, third connector on the Gecko), set the ports and pins
to 1,12, enable and should be able to get the signal. No Joy. No
indication that the UC100 or Mach3 is receiving any signal. I have check
the continuity of the wiring and it is good.

I have pin 10 set for probe, pin 11 set for limits and these work well. If I connect the probe
to pin 12 it does register both through the UC100 and in Mach3 so I believe it is
not a problem with either of those. I have also tried connecting the sensor
on pin 10 and it does not register on that pin either.

I have to be doing something wrong with the wiring. I thought using the
wall wart was the easiest way to go since the Gecko has 11 volts.

What am I missing?
Re: Spindle Speed Sensor Wiring
« Reply #1 on: January 04, 2017, 04:17:18 PM »
Disregard, I found a solution.