Hi
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Between your points 19x7-2 and 19x7-9
24VDC regardless whether the tool setter is depressed or happy.
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BAD. You will never get a change on io. First there must be a change!!
Measure if 3a1-5 is on gnd level.
Do you have the same gauge as the original poster (Sliptonic?)
If so, then you need to power the sensor with 24V and then the yellow output wire will change state as the switch is pressed.
So, you need both the wiring you show (where the switch is yellow to ground) and the 24V + GND power supply for the sensor itself.
The instructions include a limitation on not more than 20mA current. Wouldn't shorting 24VDC directly though this switch to a 7i77 input pin exceed that current limit?
Digital inputs are high impedance. They have to be ur nothing could ever change their voltage level.
If you want to be sure, use a multimeter in current mode to connect an input to +24V. You should see a state-change in the input and a few mA of current.
Just for the record, my tool is using a KAQY214S solid state mosfet inside. Now you can look up the detailed specs yourself, it's easy to disassemble the entire unit, there's not much technology inside
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I think 2 components which look like a capacitor are just Fuses / PTC fuses maybe.
