npn -relay- pmdx-122 wiring diagram

[saas]

After much thinking, ... I was unable to resolve this
http://img835.imageshack.us/img835/7816/npnsensor.jpg (http://imageshack.us/photo/my-images/835/npnsensor.jpg/)

how to connect this?

I hope that there is someone who has the time to help me

tx

[sailfl]

See if this helps you.

There is some additional stuff that you don't need.

[saas]

first like to thank you found time for me and your explanation
http://img849.imageshack.us/img849/7816/npnsensor.jpg (http://imageshack.us/photo/my-images/849/npnsensor.jpg/)



means,

I have to have a power supply of 12 V DC!?

which is most commonly used?

[smreish]

Or 5v or 24v or other.
Personally, I ordered a power supply from Antek with:
56V tap for steppers
12V tap for prox circuit
5v tap for laser, led's

[saas]

I have a toroid trans output of about 30V and 9V/1A

can I use the 9v for pmdx-122 and prox?

[smreish]

Most Prox are 12v/24v but to vary. For instance, you can order a version that is 10vdc-30vdc allowable. 9v might be low for the sensor to activate and sense properly.

[saas]

hmm,
Then, without complicating remains (repeatedly presented)

DC Switching Power Supply,
Slim-line,
DIN-rail mount,
Plastic Case,
12V/4.2A Output,
85-264VAC Input

Do you agree?

[KenC]

4.2A (50VA)is too big... you can save easily 50% if you go for a 2A SMPS which is still too much capacity for just 3 proxy switches. If I remember off the back of my head, each swith is 200mA & a3x200ma=0.6A double safty factor (which is already way too much for such application) is 1.2A & triple the safety factor is 1.8A... Why don't you save the difference in price to get a 6-pack? :)

[saas]

..on this data I'm not careful

thanks Ken