Motion detector - Connecting two motion detectors to one lamp

Question

Hello, I wonder if I can connect two simplest motion sensors to one lamp (basically a series of lamps, but they are lit together from one switch and are connected in parallel in one box, so I treat them as one point). Unfortunately, this line is separated by a glass pane and it is difficult to...

nuszek · Accepted Answer

Check if the sensors will be powered from the same circuit protected with the same fuse, there are no contraindications. If from others, then you have to give relays.

GBW · Accepted Answer

Additionally, detectors must have three wires, two-wire versions may not work.

BILGO · Accepted Answer

Everything they wrote above + sensors so that they have relays inside ... If they do not have, then you need to add them to the detectors.

BILGO · Accepted Answer

A very simple preview drawing, please

.Jack · Accepted Answer

You can, it will not affect the condition of the motion sensors.

nuszek · Answer

And why should they have relays, if they are powered from the same phase and the same fuse, and what happens when the detector gets phase voltage at the output, there is probably a triac at the end, after all, it will not make a short circuit.

aslan66 · Answer

Thank you for your quick response

Can someone else post a diagram, because I have no idea how to connect these two detectors together ...
thank you very much

Added after 4 [minutes]:

Oh, the lamps are powered from one point, they are lit by one switch. It's just a series of lamps in the corridor, only separated by this unfortunate glass.

kkas12 · Answer

If the lighting is to be controlled by motion sensors, why this switch?

Łukasz-O · Answer

Service switch

aslan66 · Answer

Thank you, which is just two detectors in parallel and that's it, I thought it was more complicated . The switch can actually stay, unless it will not disturb.

.Jack · Answer

Rather, it will be because there is a problem on which side of the corridor to mount it and make sure that it is turned on all the time - otherwise the threads from the automatic operation of the lighting. The second thing is, if there is a partition in the corridor (apart from the escape route) and there is an entrance, it is better to divide the lighting into two circuits (for the right side of the partition and for the left side). But that's way off topic.

aslan66 · Answer

As you write, it would probably be best, only the possibilities of alteration are limited there, an old tenement house, every move is a conservator of monuments

.
The switch is in a place known only to the staff, so it will be ok. I just wonder if the first detector turns on the lamp from its Lo output and the object appears in the second detector's field of view behind the glass, then how it works will not make a short circuit? It's supposed to be the same phase, but first the voltage will appear from the output of the first detector to the output of the second one and the second one will add its own ...?
Maybe I'm thinking wrong, but I'd rather be sure

.Jack · Answer

No worries. And so, the activation time to deactivation will be counted from the detector which turned on the lighting first, when there was no movement in the second detector. And each actuation of the second detector with active lighting will be counted from that time of actuation of the last activated detector. There will be no short circuit. Manufacturers specify the number of detectors that can be installed on one circuit and for 100% it is more than two.

aslan66 · Answer

Thanks. The user still thought that he would like to have the entire system turned off during the day and that the lamps would shine constantly, it would switch to motion detectors only at night. I understand that I can safely do such a bypass on the so-called switch. feed left-right and phase once to the L inputs of detectors, and once directly to the lamps? Detectors de-energized will not be hurt by the "bare" phase at the Lo outputs?

Added after 2 [minutes]:

This switch would of course be a switch instead, one pole for the detectors, the other for the lamps.

Added after 5 [hours] 23 [minutes]:

The workaround I wrote about above would be what you think, can you do that?

aslan66 · Answer

Well, I'm working next week, I'll let you know the effects, thanks to everyone

grudziu · Answer

Such a remark, but I am not 100% sure about it: with relays it may happen that the detector will not reflect it, too low power consumption. Sometimes you can read such a comment in the instructions.

aslan66 · Answer

Thanks for your attention and vigilance , but there will be no relay, only a manual left-right switch, so that it works once on the detectors, and once it is on all the time, as in the diagram above.

aslan66 · Answer

And the topic is closed, everything works as we assumed. You didn't even need a switch, it is enough to close the detector outputs so that the lamps stay on all the time, when they open, they act on the detectors. So a simple phase switch did the trick. I used Kanlux detectors, the simplest ones. Thank you once again

admirators · Answer

Please confirm that nothing will be damaged in this situation. greetings

mikus39 · Answer

Can the sensors be from different manufacturers? And how to connect a microwave sensor with 4 wires in this system?

admirators · Answer

I have sensors from different manufacturers installed and they work without a problem.

Arturo2005 · Answer

Any specific type?

Motion detector - Connecting two motion detectors to one lamp

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