Normally Open vs Normally Closed - does it matter?
Posted: Thu Jan 28, 2010 10:46 pm
I got one of the garage door I/O Linc setups. Works fine. However, the readout on IndigoTouch is counterintuitive: because it is a normally closed switch (I think this is right) when the door is in the closed position, e.g. the magnet is next to the sensor, the sensor is held open (maybe that means it is normally open?). In any event, Indigo Touch tells me the garage door is OPEN whereas it is actually closed. Gives me a headache to think about it.
I found some 2 -1/2 inch active sensors at SmartHome that are normally open, so when the door would close, they would read closed. But, that means that 5v is always running thru the sensors. Does that matter?
http://www.smarthome.com/7455B/Garage-D ... -3-/p.aspx
Alternatively, could I move a wire or something on the Garage Door sensor to make it a normally open sensor?
Thanks!
BTW if I just got all this backwards, read it as I mean it....
I found some 2 -1/2 inch active sensors at SmartHome that are normally open, so when the door would close, they would read closed. But, that means that 5v is always running thru the sensors. Does that matter?
http://www.smarthome.com/7455B/Garage-D ... -3-/p.aspx
Alternatively, could I move a wire or something on the Garage Door sensor to make it a normally open sensor?
Thanks!
BTW if I just got all this backwards, read it as I mean it....