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I/O Linc sensor dry contact closure meaning


drinkwater

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No.  At least not directly w/o putting some kind of sensor on the fan/circuit.

Dry contact closure basically means an open or short circuit like that provided with a relay.

It is also possible to use an electronic circuit (like a transistor or optoisolator) to simulate a relay contract closure.

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20 minutes ago, gzahar said:

No.  At least not directly w/o putting some kind of sensor on the fan/circuit.

Dry contact closure basically means an open or short circuit like that provided with a relay.

It is also possible to use an electronic circuit (like a transistor or optoisolator) to simulate a relay contract closure.

Do you have any details on how to "convert" the current on the fan circuit into a dry contact circuit which could be used with I/O Linc?

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28 minutes ago, MrBill said:

using a relay with the same coil voltage that the fan operates on.  the contacts of the relay are 'dry contacts"

A cheap automotive 12VDC relay may pull in at 5VDC.  Some experimentation may be required.  You'll want to look at the "Coil Pull In Voltage" in the specs before purchasing.

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7 minutes ago, tmorse305 said:

Do you want to know if the fan has power or if the fan is turning?  It looks like there is a tachometer terminal on the fan you are showing. No wire attached.

I just need to know if their is power to the fan - to be able to convert that into a dry contact for the I/O Linc sensor input.

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3 minutes ago, drinkwater said:

How would I wire that up with the existing wires on the fan (sorry if I asking too much) ?

Depends on how good you are with a soldering iron.  I would tack on two more wires right there at the fan where you see the red and black wires attach.

Probably the simplest way is to use some type of wire tap like this: https://www.amazon.com/Nicelux-Electrical-Connectors-Connection-Self-Stripping/dp/B07ZC4CTLW

which crimps on.

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1 minute ago, MrBill said:

Depends on how good you are with a soldering iron.  I would tack on two more wires right there at the fan where you see the red and black wires attach.

Probably the simplest way is to use some type of wire tap like this: https://www.amazon.com/Nicelux-Electrical-Connectors-Connection-Self-Stripping/dp/B07ZC4CTLW

which crimps on.

I think I can solder it on the existing fan wires. Was thinking more about how to connect to the relay you mentioned and then from their to the I/O Linc input sensor.

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