wiring a relay with a prox switch

[supersparky]

how can I do this without buring up the prox switch. I have used prox switches in the past with plcs and have never had any problems. I am trying to control a relay and the prox switches keep burning up. Do I need a different relay? It is a 120 VAC circuit.

 

[itsmoked]

Oh yeah! Rapidly switching a relay with a proximity switch will cook something.

Can you use an opto-relay for what you're doing? They automatically provide zero crossing, (or not), if your application would revolt. You can get them in AC or DC. They require only about 5mA to switch which unburdens the prox
switch greatly.

Keith Cress
Flamin Systems, Inc.-

http://www.flaminsystems.com

 

[powerjunx]

supersparky:
You may check the spec's of prox. switch such as voltage suitabilty. How often switching occurs, by the way? If it occurs most often to the extent that exceeds its specified operation, then Itsmoked is right.
Else, to resolve the issue without replacing new relay, you may try to suppress the surge effect of switching like putting up a diode or a series capacitor-resitor circuit across (parallel) the control relay coil.



"..the more, the merrier" Genghis Khan