Fibaro Universal Sensor

[esencia 1]

Hi,

Sorry for the delay. The 1 connector is the negative or 0V, and it's always in that state.

Conecctor 3 and 4 are connected to the central alarm (probably to a relay inside it), and that´s the reason why they are not dry contact. +14,3V when nothing is detected and 0V when it detects movements.

I've bought a micro relay RN12 to transform the active signal into a passive signal, and then plug the universal sensor to it

[esencia 1]

Apologies for the delay, but the day job gets in the way

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/emoticons/default_icon_wink.gif" alt=";-)" /> Just looked up the details for your detector, and found this;

Terminals 1 (–) & 2 (+): Voltage limits are 9 to 15 VDC. Use no smaller than #22 AWG (0.8 mm) wire pair between the detector and the power source.

Terminals 3 & 4: Alarm relay (reed) contacts rated 3 watts, 125 mA, 28 VDC maximum for DC resistive loads and protected by a 4.7 ohm, 0.5 watt resistor.

This almost states that 3 & 4 are electrically isolated from the detector. Could you please do your voltage measurements again, confirming that 1) the negative/black probe is always on connector 1, and 2) nothing else external connected to 3&4.

EDIT: Instructions found

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Hi davedotnet,

I've been doing a test about this with a mini relay, and it seems to work for a while. My problem there was that the relay it´s noisy (even the smallest one that I could get), so I'll try with an "optocoupler"?? The bad thing is that I think there is no one that admits that voltage, so I'll need to put some rectifier...

But my other concern was that I plugged the universal sensor with the Dallas temperature sensor plugged with it in the first time, but I was unable to discover it.. It seems not to detect it. I plug the 3 wires following the scheme but it seems not to be working ..

With all your electronic knowledge, do you have any solution for this two deals?

Thank you very much for your help again!

[davedotnet 0]

But my other concern was that I plugged the universal sensor with the Dallas temperature sensor plugged with it in the first time, but I was unable to discover it.. It seems not to detect it. I plug the 3 wires following the scheme but it seems not to be working ..

I'm assuming it found the Universal Binary Sensor (pushing the B button three times), but it didn't find the sensors. This is my tried and trusted method for getting the Universal Binary Sensor to recognise the Dallas sensors:

Whilst holding down B button - Power off, Power On, wait 10 secs, release button

Power off, power on

Wait 10+ secs (for it to interrogate all the sensors)

Add Device (on HC2)

Press B button three times

Remember though that every time you do this, HC2 will find a 'new' Universal Sensor, so either delete the old one, or, remove the association by "Delete'ing the Device" beforehand.

[davedotnet 0]

Connector 3 and 4 are connected to the central alarm (probably to a relay inside it), and that´s the reason why they are not dry contact. +14,3V when nothing is detected and 0V when it detects movements.

I've bought a micro relay RN12 to transform the active signal into a passive signal, and then plug the universal sensor to it

I should have responded earlier. I think my diagram still stands in terms of connecting IN1 to your detector. You should then confirm whether it detects motion. I think the fact that the central alarm just needed a relay closing/opening, then inserting the Fibaro will just replicate that. There should be no need for relays, etc, they are built into the Fibaro. Have prepped a diagram. See if that agrees with the 'before' state.

Can you tell me the manufacturer and model of the central alarm so that I can look up the contact details.

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[esencia 1]

Connector 3 and 4 are connected to the central alarm (probably to a relay inside it), and that´s the reason why they are not dry contact. +14,3V when nothing is detected and 0V when it detects movements.

I've bought a micro relay RN12 to transform the active signal into a passive signal, and then plug the universal sensor to it

I should have responded earlier. I think my diagram still stands in terms of connecting IN1 to your detector. You should then confirm whether it detects motion. I think the fact that the central alarm just needed a relay closing/opening, then inserting the Fibaro will just replicate that. There should be no need for relays, etc, they are built into the Fibaro. Have prepped a diagram. See if that agrees with the 'before' state.

Can you tell me the manufacturer and model of the central alarm so that I can look up the contact details.

Wow, Thanks a lot for your deep detail!!

But I think that we'll have a problem with 4 and 1, because 4 has 0v in on state and 14v in the other, but 1 allways has 0v. So the central will have a problem with it. In fact, if I connect 1 to 4 it will start the alarm because it thinks that there is a sabotage on it.

With this connection plus a relay it worked for a while (but no temperature sensor

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1 to gnd

2 to P

4 to IN1