Go to functions " smart home» refers to the automatic switching on of a lamp in a room as soon as a person enters it and switching it off when leaving. For this purpose, a motion sensor is used, which closes the lamp's power circuit when it detects movement in the room. After a specified time interval, if no repeated signals are received, the lighting turns off.

Motion sensor in the room to turn on the lights

The figure does not show the supply wires, since the wiring to it is hidden.

Before connecting a motion sensor to a light bulb, you need to choose the right location for it. It is usually installed at the top of the corner of the room so that it controls most of the space.

Advantages and disadvantages

When deciding to install a device, you need to know about its positive and negative characteristics. The advantages include:

• economical energy consumption, since the lamp will always be turned off on time;
• constant scanning of the area and reliable operation when a signal appears;
• no need to look for the switch in the dark;
• the scheme provides protective functions when the lamp lights up when strangers appear in the yard.

The disadvantages of sensors include high cost, false alarms for various reasons, and operation within limited temperature limits.

Types of motion sensors

1. Infrared - triggered by changes in thermal radiation from moving people. If the device scans the surrounding thermal background, it is called passive. Such sensors are more common because they are cheaper. When the device circuit contains a radiation generator and a device for measuring reflected rays, this active sensor.
2. – reaction to sound of a certain level, depending on the setting.
3. Microwave – generation of short wave radiation and response to changes in the reflected signal.
4. Ultrasonic – generation of high-frequency sound and response to a change in signal after it is reflected from objects.

The operation scheme of any type of device provides for a reaction to changes in the parameters of the scanned space.

Operating principle of the infrared sensor

The sensor detects thermal radiation from surrounding objects that reaches the light-sensitive sensor through a system of concentric segmented lenses (Fresnel lens). Their number is 20-60 pieces. The more there are, the higher the sensitivity of the optical system. The controlled coverage area directly depends on the surface area of ​​the lenses. Installing a Fresnel lens (Fig. a) instead of the usual one makes it possible to reduce the weight and dimensions of the sensor.

Fresnel lens (a) and conventional lens (b)

In the picture below in general view shows a diagram of how the motion sensor works. It reacts not to background radiation, but to sudden change heat flow from a person entering the room. The radiation receiver is a pyrodetector, which generates an electromagnetic field, which is directed at it by an optical system. Electronic circuit amplifies the signal and closes electrical circuit lighting systems. For this purpose, a controlled semiconductor is used - a thyristor.

The conductivity of the thyristor depends on the level of the input signal. If it is sufficient to trigger the device, the control unit turns on the lamp. There is a control device to change the sensitivity of the sensor.

Scheme for switching on lighting from a motion sensor

The electronic unit provides for turning off the lighting after a specified time delay. In addition, it contains a twilight switch to take the device out of operation. daytime.

Choosing an installation location

The device should cover as much space as possible in the room. When installing, you should take into account the features of the room and the paths of people passing through them. Due to the fact that the field of view is 120 0, the sensors are placed in the corner so that the rays pass through the entire room. Moving to the middle of the room will create uncontrolled spaces, although making the right choice and installation on the ceiling, the view can be increased to 360 0. If the room contains turns, instead of one, install several devices, connecting them in parallel to each other, as shown in Fig. below (c).

Motion sensor connection diagrams

When installing the sensor, the following must be avoided:

1. Do not install near heating radiators, devices with electromagnetic radiation, in a draft or in other places where operation may be affected by extraneous signals.
2. Obstacles in the field of view may cause false alarms. This could be bushes, trees, cobwebs, contamination of the device, etc.
3. The device must not be exposed to direct sunlight or artificial light from the lamp.
4. The switched load should not be pushed to its limit.
5. Parallel connection of several sensors should only be through one phase.

Connection methods

The connection diagram of the sensor instead of a conventional switch is not much different from it, only the work is done automatically. The device is used to open or close an electrical circuit.

The sensor should be connected only as shown in the diagram (Fig. a). The phase and neutral wires are connected to the sensor terminals (brown and blue, respectively), and the lamp is connected to the neutral wire and the output of the device, which is supplied with supply voltage when triggered.

All connections must be made with the mains voltage removed.

To switch on the manual control mode instead of automatic, the switch contacts are connected parallel to the motion sensor (Fig. b). If you need to go back, they will open again and the motion sensor will again control the lighting.

The old light switch is usually left in the circuit. With its help, you can turn off the motion sensor if it is not in use or during repairs.

If one device cannot control the entire room, another sensor is connected to it in parallel (Fig. c).

If it is necessary to turn on a lamp, spotlight or group of lamps with a power exceeding the specified one, the signal from the device is applied to the winding of a magnetic starter, which with its power contacts will provide the required connections.

3 wires are drawn to the device from distribution box: phases, neutrals and lamps. On its terminal block you can see the designations of phase (L), zero (N) and lamp (A).

Do not confuse the motion sensor connection terminals. An incorrect connection may cause it to fail. The phase is easily found using a voltage indicator, which does not respond to the neutral wire.

The connection is made through terminal blocks, and the wires for the screw must be tinned, since copper wire oxidizes over time.

Choice

The choice of sensor design depends on the installation location: external, internal, corner, wall, ceiling.

Sound switches

Devices that respond to sound are often used because they are cheap. Sound switch 00090 (manufactured by Argos-Trade, Russia) is connected in the same way as a regular one; a separate connection of the neutral wire is not required. The device is installed in mounting box and has good sensitivity to sound signals. It is applied for automatic switching on lighting sources with a power of up to 100 W in corridors and on staircases.

In addition to the built-in sound sensor, the device has a light sensor that allows you to set the response threshold for daytime.

Sound switch 00091 has similar characteristics, but a neutral wire is used for connection.

Motion sensor LX-01

The figure below shows a common motion sensor LX-01 (Feron, China).

Motion sensor LX-01

LX-01 has 3 settings:

1. Turn-on time interval – duration of operation from the moment of detection (up to 2 minutes). If a person continues to be in the coverage area, the device turns on again.
2. Light level – below a customizable threshold value, the sensor does not operate. There is no need to operate the sensor during the day.
3. Sensitivity – to eliminate random triggering, for example, from the movement of pets. The radius of the coverage area is adjustable.

Specifications:

• scanning angle – 120 0;
• maximum detection distance – 12 m;
• supply voltage – 220 V;
• switching time – 5-600 sec;
• Photosensitivity range – 10-2000 Lux.

At low temperatures The device operates down to -10 0 C.

DetectorLX1 consists of two boxes:

• hardware, consisting of a control board, a pyroelectric motion recognition sensor and a photosensitive photoresistor for controlling the light level;
• mounting, with fastening of the device body and holes for entering wires.

The motion sensor can be mounted on a wall or a bracket.

The figure below shows other motion sensors from well-known companies that are in demand. They are reliable and fit well into any interior. Viewing angles can reach 360 0 .

Types of infrared motion sensors

A motion sensor can be built into the lamp in the form finished product. There is no longer a need for a separate lighting connection, and then a control system, as well as installation costs. The device is installed in place and immediately starts working, for example, Wall Light Steinel-L265S. It covers an area at a distance of up to 8 m, the viewing angle is 360 0, - 100 W, and the maximum operating time is 15 minutes. The lamp costs about 10 thousand rubles, but it will be more economical in terms of costs and time than in the case when the circuit is assembled from separate parts.

Ultrasonic motion sensor

The device emits ultrasonic waves, and then the optical system catches them after reflection and sends them to a receiver, which, at a certain level, sends a signal to an electronic light switch. Manufacturers: Feron (China), Turck (Germany), Master Keith (Russia).

IN living rooms They try not to use devices, since ultrasound is perceived negatively by pets. They are mostly used in long corridors and on stairs.

The advantage of the sensor is its low price, unpretentiousness to influences external environment and fixing objects from any materials.

Disadvantages include short operating range and poor sensitivity when objects move slowly.

Microwave motion sensors

The operating principle and circuit of the device are similar to ultrasonic ones, only the work occurs in the microwave range. Recommended manufacturers: TDM Electric (China), Euroavtomatika (Russia, Belarus). The advantages include compactness, high range, ability to pick up signals from slowly moving bodies, and resistance to the external environment.

Their cost is higher compared to sensors operating on other principles. Signals can be detected even behind partitions made of non-conductive materials, which often leads to false alarms. Microwave sensors are not used in places where people are constantly present, since microwave radiation is harmful to health.

Combined sensors

By combining the advantages of several methods of parallel motion control, the sensors compensate for the characteristic disadvantages and operate more reliably.

A universal device is the “Control-Lux 1100” sensor shown in the figure below (TD Pan Electric, Russia). The device circuit provides a response to sound and movement, operates at a distance of up to 12 m, is not afraid of moisture, and is used for a lamp indoors or outside the house. The load is up to 1 kW.

Motion sensor "Control-Lux 1100"

DIY sensor. Video

You can learn how to make a full-fledged motion sensor with your own hands by watching this video.

Lighting control using motion sensors saves energy and creates comfort at home. It can be used with a soft switching device for a lamp or dimmer for. Infrared sensors are the predominant application. To install them, you need to know the installation and connection rules.

If you are interested in the question of how to connect a motion sensor correctly, then you have opened the right article. After studying the material presented below, you will understand that connecting one is almost similar to installing a conventional switch, and the main difference between them is the direct principle of operation - mechanical and automatic.

Connecting one motion sensor to a circuit

First, you will learn how to connect one motion sensor to a circuit. It has three terminal clamps. From one terminal the wire is led directly to the phase, the other terminal is intended for the neutral wire, and the third is for connecting a lighting device. As you can see, the connection diagram for the motion sensor is quite simple.

Motion sensor connection diagram - Photo 04

If you would like the lighting to be constantly on, even when there is no movement in sight, you need to parallel connect the switch directly to the motion sensor. To do this, the switch is connected from a phase to a part of the wire located between the motion sensor and the lighting device. When the switch is open, the motion sensor will work as required, but if the switch is closed, the lamp will bypass the sensor. It's quite simple.

Connecting multiple sensors in a circuit

Now we will try to explain how to connect motion sensors if there are two or more of them. And this is required if the range of such a sensor is too small and is not enough to cover the required area.

It is necessary to select a location for mounting the sensor in such a way that it has the greatest viewing angle. But in rooms with a chaotic layout, this is almost impossible to accomplish using one device. In this case, the sensors are connected in parallel to one phase! If you connect sensors to different phases, then be prepared for the appearance short circuit due to phase-to-phase connection.

Installation location

Even if you have found a motion sensor circuit for lighting, choose best place It's not that easy to install. You must take into account several factors that affect the quality of its work. So, you should not install it near heating systems, air conditioners, sources of electromagnetic radiation (microwave ovens, radios, televisions).

In practice, connecting a motion sensor should begin with its inspection. On the box (usually under the terminals) there is a diagram for connecting the motion sensor. There are three terminals and they have the following designations: L, N and L with an arrow. The usual L indicates the terminal to which the phase is connected. N is the neutral wire, and L with an arrow is the wire for connecting to the lamp.

Inspect the circuit consisting of a lamp and a switch in the room. Disassemble it and make sure that the switch opens the phase. But it may also happen that the switch is installed on the neutral wire. The lamp works, although this option is unsafe.

Pay attention to the wires coming from the wall to the chandelier. There are two of them. Strip the wires and connect the three-piece terminal block. The motion sensor circuit for lighting is simple: draw a phase through the upper terminal of the chandelier block and close it to the sensor terminal marked L. Pass the neutral wire through the middle terminal of the chandelier block and close it to the sensor terminal marked N.

Two more wires pass through the middle terminal of the chandelier block. One wire connects to the chandelier, and the other to the second outlet. The phase wire from the sensor terminal goes to another terminal not directly, but through an open relay. The terminal with the letter L and an arrow on the motion sensor is connected to the third terminal of the chandelier block. A light bulb and an additional socket are connected to the bottom terminal of the chandelier block. The relay will operate when the motion sensor detects any vibrations. As you can see, connecting a motion sensor for lighting is not difficult.

Motion sensors have become popular because they can help you save on bills and make life easier. Although the device itself is easy to use, you need to figure out how to connect it. This does not require specialized education or special tools. Below you will find a diagram for connecting motion sensors for lighting.

In this article:

Principle of operation

The motion sensor is equipped with special elements that can detect changes in the position of objects in space and perform a specific action. In our case, when triggered, the device turns on the light. But sometimes such devices are connected to alarms or other systems.

The operating principle itself differs different models. Sensors can detect infrared radiation, ultrasound and microwaves, and sometimes produce combined devices. There are sensors with passive and active modes. The first option only receives data and may not work correctly. The second one emits signals and collects the reflected waves back, analyzing the state of things in the room. The last option is considered the most reliable.

The benefits of a motion sensor are enormous. It helps you save on electricity and turn off the power supply when no one is there. The device also makes life easier - sometimes it’s difficult to find the switch in the dark, and sometimes your hands are simply busy and it’s impossible to see where to step. The sensor will understand that you are in the room and will independently supply power to the lighting fixtures.

Installation location

Before you start connecting a motion sensor for lighting, you need to determine where it will be mounted. The correct position will avoid false alarms and delays in closing the power circuit. Here are some tips for choosing a location:

• It is recommended to mount the sensor near the entrance to the room on the wall or ceiling. When a person moves from one room to another, the device will immediately detect the movement.
• The sensitive area of ​​the sensors should not be exposed to windows or other sources. daylight. Otherwise, you will have to fine-tune for different degrees of illumination.
• IN large rooms and where there are multiple doors, it may be necessary to install two units to maximize space coverage. An alternative could be a device mounted in a corner of the room.
• On landings, a motion sensor is installed so that it can detect movements on several flights simultaneously. You may have to tilt the device or lift it up.
• There should be no trees, bushes or other obstacles within the visibility range of the device. They reduce visibility and can lead to false positives.
• Sources of thermal or electromagnetic radiation must not be placed opposite the sensor.

Motion sensor installed next to the switch

Options for connecting a motion sensor

Like most electrical appliances, the motion sensor for lighting has three contacts: input, output and zero. Important for normal functioning correct connection to the network. There can be three options for interacting with the lighting system:

1. Direct connection to lamps. The device will operate as intended by the manufacturer. This method gives the device full rights to control the lamps.
2. A switch is added to the connection circuit on the input side. This way you can forcibly turn off the light, and with it the sensor. This feature is useful in bedrooms because it allows you to take away control of the motion-sensing device while you sleep.
3. The switch is built into the circuit on the current output side. In this case, you can leave the lamps in working condition, bypassing the device settings.

Types of motion sensor connection

Regardless of the combination, the method of connecting the motion sensor does not change.

Connecting one or more devices

The process of connecting a motion detection sensor is carried out in six steps:

1. To ensure safety when working with wires, the electricity supply in the room is turned off. Most often, this will require switching the machine lever.
2. On the device itself, the back cover is removed, since the terminals are hidden behind it. By unscrewing one bolt and removing the protection, you will see three multi-colored wires. The color helps determine the connection method. The blue wire is zero, the brown wire supplies power to the sensor, in other words, this is the input. Black or red is designed to transmit electricity from the device to the lighting fixtures.
3. A wire from the wall is pushed through the cover, and then it is fixed in the design position. It is recommended to position the wire vertically, this will facilitate subsequent installation of the sensor.
4. Only 6 cm of power cable is enough for comfortable operation of the device. Before connecting to the terminals, 5 mm of insulation is removed from the conductors.
5. Each individual wire is connected to the desired terminal connector of the motion sensor.
6. The device itself is mounted to the wall, carefully folding the wires so that they do not interfere with the installation.

Installing a motion sensor for street lighting

In some situations, one sensor is not enough to automatically turn on lighting fixtures. Then several devices are used simultaneously. Here two important conditions must be met: parallel connection and power supply through one phase.

Why might the sensor not work?

Sometimes it happens that the work was carried out according to the instructions, but the motion sensor still does not function. The cause may be poor contact of the blue wire. Perhaps it got into the terminals construction garbage or the clamp is not tightened tightly enough. Check the contacts: they probably need to be tightened or cleaned.

Another common cause could be damage to the cable itself. Perhaps during the installation process the wire broke and the current stopped flowing to the devices. To check, use a voltmeter by placing probes on the various contacts on the device. If the power is normal and there is still no light, there is a possibility that the lamp has burnt out.

Checking the functionality of the motion sensor

At times, residents encounter another problem - the light does not turn off, although there is no one in the room. If you did not add a switch to the network, then the reason is incorrect sensor settings. The auto shutdown time may be set too long.

Setting up work

For normal operation of the motion sensor, you will need to configure it. In total, it has three controllable modes: time delay, light settings and sensor sensitivity. The operating time is counted from the moment of the last recording of a person’s presence. This indicator is adjustable from 1 second to 10 minutes, depending on the model.

In walk-through rooms, a few seconds of lamp operation are sufficient. For such premises it is recommended to purchase lighting with minimal switching inertia. In addition, they should easily tolerate frequent mode switching. Most suitable option consider LED lamps.

The light setting affects the operation of the sensor during the day. If the device detects sufficient quantity light in the room, then even if it detects movement, the relay will not close. The mode is adjusted depending on the number of windows in the room. This makes the device economical to use.

The sensitivity of the device affects the number of human movements and his distance from the lighting sensor. If you walk past a device and it doesn't work, the cause may be a reduced sensitivity threshold. Conversely, if the light turns on at the slightest movement of the mouse or cat, you should reconfigure the device. It may be necessary to change operating modes in different times of the year.

The motion sensor is used to automatically turn on the lights in the house. It detects an object moving in the room and sends a signal to turn on the light. It is very convenient to use such devices in everyday life.

What is a motion sensor and why is it needed?

The motion sensor is a special wave detector powered by electricity. It detects movements in the room. That is, any moving object entering the coverage area of ​​the motion sensor activates the sensor system, which transmits it to the mechanism attached to it.

The device will not harm your health and will significantly save energy, and therefore the money that you could pay for it.

This device has many advantages:

Installing a motion sensor in any warehouse will make your life easier. As a rule, in such rooms the switches are located quite far from the entrance. This means if indoors creative chaos, you can easily get injured by tripping over an object.

Multifunctionality is one of the main advantages of motion sensors. Not only is it compact and ideal for any interior, but it can also be wireless, which is convenient. The motion sensor can be used for various purposes, be it opening a gate or signaling.

Types of motion sensors

Now there are several types of motion sensors. Before purchasing, you should understand a little about the characteristics of these devices. There are a large number of them so that everyone can choose a device that suits their specific requirements.

Motion sensors are divided into several types, depending on the location where it is located:

• Type internal. This type of sensor is located indoors. You can install it absolutely anywhere in your house or apartment.
• External type. Such a device operates at a distance of 100 to 500 meters. They are usually installed in the courtyard of a house or in large areas of various industries.

The installation, like the devices, is divided into two types:

• Ceiling installation type. This alarm device is mounted in the ceiling. Typically, it works 360 degrees.
• Wall-mounted or, another name - corner type installations. The advantage is considered to be a smaller opening angle, which reduces the number of false reactions.

The power supply of the alarm is divided into several types:

Wired power supply – they work well throughout the entire period of operation, almost like new. This happens because electricity is transmitted through wires. The alarm has a minus - it turns off if there is no electricity.

Autonomous or wireless power supply. It runs on one or more batteries that are pre-built. More modern models feed on sunlight. However, such an environmentally friendly option requires control of electricity. It should not be too little or too much.

Installation

The sensors also differ in installation. There are external or overhead ones, as well as devices that are built-in. The first ones are easy to install; you only need to connect electrical wiring to them. The second type has the main advantage of being able to be manufactured to suit the interior and overall design of the room.

To better understand what it looks like, it’s worth looking at photos of such motion sensors. Thanks to this advantage The sensor can be planned at the design stage of the whole house project. Both types differ from each other in their operating principle.

Ultrasonic motion sensor

It works quite simply. The waves that come from the moving object are read by a built-in wave catcher. This type The sensors last a long time and are easy to use. The price of the ultrasonic sensor is reasonable and it is also environmentally friendly.

However, it has some disadvantages:

• Often does not respond to slow moving objects.
• It has a negative effect on animals, so if you have pets you should not choose a sensor of this type.

Infrared sensors

Such devices react to heat emanating from a moving object, then the light turns on. The implementation of this action directly depends on the number of light bulbs that are built into the system. The more lamps, the more territory covers the device.

It is not advisable to install such a sensor in the kitchen, because... there are temperature changes, and as you already know, these devices do not like temperature changes.

The sensor is harmless to animals and people. The device is customized to suit your viewing angle and sensitivity requirements. Sensors of this type work great both indoors and outdoors - this is definitely a plus. TO infrared sensors include 12 volt motion sensors.

Disadvantages of infrared sensors:

• They react to heat waves from equipment located in the room.
• Precipitation and sun affect the infrared sensors.
• Does not react to objects that do not emit heat.

Principles of operation of motion sensors

The principle of operation of the motion sensor is quite simple. When a moving object appears in the motion sensor's viewing area, the built-in detector will turn on the relay and with its help, electricity will be transmitted to the light bulbs, thereby turning on the light.

The device operates for the time you specify in the settings. You can select from 5 seconds to 10 minutes. That is, for example, you set a timer for 5 minutes, if there is no movement during this entire time, the device will turn off the light.

Even before purchasing a sensor, you need to decide on its location. The type of device will depend on this. For example, an infrared sensor will not respond to a person if he has not entered the room. If you want the light to turn on when the doors are opened, install an ultrasonic type device.

How to install a motion sensor correctly?

You already know what a motion sensor is, their types, and how they work. Now let's talk about how to properly connect a motion sensor. When placing the device, be sure to take into account the size of the room where the windows and doors are located. All this affects the correct operation of the sensor.

Consider these factors when installing the device:

• There should be no dirt or dust.
• Any objects in front of the sensor, especially outdoors, can cause the device to trigger.
• If you are installing an alarm with wiring, its insulation must be moisture resistant.
• Mount the sensor next to or opposite devices emitting light or electromagnetic waves- not a good idea.
• Set desired angle and direction, because the device will react to objects that fall within the coverage area.
• Select lamps according to power, take with a margin of 15%.

So now you know everything there is to know about motion sensors. I hope after reading this article, you have decided for yourself which motion sensor is better to choose.

Photos of motion sensors

As a rule, the term “motion sensor” in everyday life defines an electronic infrared device that allows you to detect the presence and movement of a person and helps switch the power to lighting devices and other electrical appliances.

If you want to make your home safer, buy motion sensors that will not only become convenient assistants for you, but will also help you save energy by turning it on or off when you enter or leave the room, respectively.

The motion sensor has a simple principle of operation - when movement appears in its sensitivity zone, all devices connected to it turn on. All devices turn off when the circuit automatically opens, and this happens in the absence of movement.
In this article we will look in detail motion sensor for ultralight ask 1403 lighting having a viewing angle of 180 degrees.

Typically, a motion sensor is used to turn on lights, but these devices can be used for more than just this purpose. I would like to note that there are sensors with a viewing angle of 360 degrees.

That is, the sensor is capable of detecting any movement from any direction. Therefore, if you have a store, office or any object that needs an alarm system, then in this case a security alarm can be used.

Motion sensor connection diagram to the lamp

Connecting a motion sensor is a simple process that has many similarities with connecting a regular switch. After all, like a switch, a motion sensor closes (or opens) an electrical circuit with a lamp connected in series to it, which is the similarity in the connection diagrams of the sensor and the lamp via a switch.

When purchasing a sensor, you should also receive standard instructions for its installation, configuration and connection. Another option for studying the circuit is to look at it on the body of the device itself.

Under the back cover there is a terminal block, as well as three colored wires connected to it, which come out from inside the case. The wires are connected to the terminal clamps. If you are using to connect stranded wire then it is better to use special insulated tips NSHVI.

Power to the sensor from the network comes through two wires: phase L (brown wire) and zero N (blue wire). After the phase leaves the sensor, it arrives at one end of the incandescent lamp. The second end of the lamp is connected to the neutral wire N.

If movement occurs in the control zone, the sensor is triggered, and then the relay contact is closed, which leads to the arrival of a phase to the lamp and, accordingly, to the lamp turning on.

Since the terminal block for connection has screw clamps, we connect the wires to the sensor using NShVI lugs.

It should be noted that it is best to connect the phase wire in accordance with circuit diagram, which complements the instructions.

After the wires are connected, put on the cover and proceed to next stage- connecting wires in the junction box.

Seven wires enter the box, three from the sensor, two from the lamp and two supplying phase and zero. In the power cable, the phase is brown, the neutral is blue.

Let's deal with the wires... For the cable that is connected to the sensor, the white wire is the phase, the green wire is zero, the red wire must be connected to the load.

The wires are connected approximately this way: we connect the phase wire of the power cable together with the phase wire from the sensor (brown and white wire). Then we connect together the neutral wire from the power cable, the neutral wire from the sensor (the one that is green) and the neutral wire from the lamp.

There are two unused wires left (red from the sensor and brown from the lamp) - we connect them together. All connections are ready, as you can see there is nothing complicated...

I'll show you closer how to connect a motion sensor in a box. I think figuring out the connection won’t be too difficult (if not, then write in the comments and we’ll sort it out). Now you can apply power.

The motion sensor is connected to the lamp. After this, we supply power, the sensor reacts to movement and, closing the circuit, turns on the lamp.

Is it possible to connect a sensor with a switch

It often happens that a motion sensor needs to be connected to the lamp along with a switch. It would seem that there are two devices that are designed for almost the same task - to turn on the lighting.

Indeed, the switch turns off the lamp (lamp) and the motion sensor under certain circumstances (detecting motion) performs the same task - it supplies power to the lamp. Many people don’t understand why these two devices should be connected together. So let's look at why we should do this?

If you want your lighting to be on for a certain period of time, regardless of the light level and movements, try using sensor connection diagram with switch by connecting a regular switch with one key to the circuit, parallel to the sensor.

Thanks to this connection, you can keep the lighting on for the desired period of time when you turn on the switch. At other times, lighting control should be completely transferred to the sensor, for which the switch should be turned off.

Connecting a motion sensor with a switch - how to do it and why?

A switch that is connected in parallel to the sensor can be added to the circuit to permanent job lamp in the room, regardless of whether there is movement in the room or not. In this case, the switch can duplicate the operation of the motion sensor, as a result of which it will be possible to forcibly control the lighting.

I'll tell you my situation for which I need it. I live in a private house and often come home late in the evening in the dark, especially in winter, when it gets dark early.

For this I installed motion sensor for lighting aimed at the entrance gate in the yard. That is, when I enter the yard in the evening, the sensor should work and turn on the lighting. Moreover, I configured the sensor so that the lighting would work for a period of time sufficient to walk from the gate gate to the door of the house.

Now let’s imagine that in the evening or at night I need to go out of the house into the courtyard onto the street, for example, to the store or, say, I hear some rustling in the yard, but there is no lighting (by the way, the sensor does not cover the entire yard). To do this, do I need to go out in the dark and wave my arms until the sensor goes off?

That's why I needed it connect a switch with a motion sensor. And when I leave the house into the yard, I simply turn on the switch and the lamp lights up regardless of the sensor. Connecting a motion sensor with a switch is absolutely not difficult.

Now there is a circuit in which the switch and motion sensor are connected together, but the lamp operates from the switch (regardless of the sensor).

Setting up a motion sensor for lighting

Setting up a motion sensor- this is another important nuance of the work of this device. Almost every sensor that can be used to control lighting has additional settings that allow it to work correctly.

Such settings take the form of special potentiometers designed for adjustment: setting the shutdown delay “TIME”, adjusting the illumination threshold “LUX” and adjusting the infrared sensitivity “SENS”.

1. Setting by time - “TIME”

Using the TIME setting, you can set the amount of time the lighting will remain on since the last time motion was detected. The value setting can vary from 1 to 600 seconds (depending on the model).

Using the “TIME” regulator, you can set the time delay setting for the activated motion sensor. The limits within which the trip setting is located range from 5 seconds to 8 minutes (480 seconds). The speed of human movement in the sensor sensitivity area plays the most important role here.

When a person passes through this space relatively quickly (for example, a corridor or staircase at the entrance), it is advisable to reduce the “TIME” setting. And, conversely, when you are in a given space for a certain time (for example, in a storage room, parking lot, utility room) it is better to increase the “TIME” setting.

2. Setting the trigger on the light level - “LUX”

The “LUX” adjustment is used to ensure correct operation of the sensor during the daytime. The sensor will trigger when motion is detected at a lower ambient light level than the threshold. Accordingly, the sensor response is not detected when more high level illumination compared to the set threshold value.

The drawing that shows how to set up a motion sensor with your own hands. To set to back side The sensor contains three regulators: a sensitivity regulator, a time regulator and a light regulator. Experiment and everything will work out.

The “LUX” regulator sets the response setting according to the level of illumination environment(from twilight to solar lighting). Division of the scale on which you can set the “LUX” setting, if there are a large number of windows in your room and the predominance natural light, should be minimal or medium.

It is recommended to set the “LUX” setting to the largest division of the scale if there is natural light in your room or if there is a small amount of it.

3. Setting sensitivity to sensor response - “SENS”

You can adjust the sensitivity to triggering, depending on the volume and range of the object, using the “SENS” regulator. The sensor's response to movement directly depends on the sensitivity level. At very large quantities When the sensor is triggered, it is advisable to reduce the sensitivity and adjust the brightness of the IR illumination to which the motion sensor should respond.

You should increase the sensitivity if the sensor does not respond to you. If the lighting turns on spontaneously, you can reduce the sensitivity. If the sensor was configured in winter time years, then it is quite likely that it will need to be reconfigured in summer period, and, conversely, with summer settings it will be necessary to reconfigure in winter.

And lastly, only by customizing the controlled zone as much as possible can you get a guarantee that he will “see” you. To do this, adjust the optimal tilt position of the head of this sensor. Here it will be sufficient to check the sensor’s response to movement at some point located in the distance.