A motion sensor is an electronic infrared device that allows you to detect the presence and movement of a person and helps switch power to lighting devices and other devices. electrical appliances. It is based on a special detector of temperature changes in space (). Nowadays there are a lot of models of various Chinese detectors on sale, which are almost all similar to each other and differ only in the design and power of the switched lamps - the connection diagram itself is usually the same.

If you need to connect several at once through this device powerful lamps, then the best solution would be to use a magnetic starter or a powerful relay.

Installation Features

To install it, you need to choose a place that provides the best viewing angles both horizontally and vertically with a maximum coverage area. Most PIR motion sensors have a dead zone, the location of which should be taken into account when choosing their placement height and angle of inclination.

Motion sensor HC-SR501 with regulators

If the sensor is made in a fixed housing and does not have positioning adjustment, then you need to check technical passport, for correct placement of the device. Sometimes this device requires the presence of not only phase and neutral wires, but also ground (ground). Although most operate from a regular two-wire 220 V network.

Electrical connection diagrams

How to connect a motion sensor with a switch

An option in which it is installed parallel to a conventional switch.

How to connect a motion sensor without a switch

And this is for connecting it directly to a 220 V network without any other buttons.

How to connect several sensors to the network at once

On long stairs or corridors you may need several pieces controlling one lamp or long LED strip white glow.

Inside the PIR sensor there is usually a terminal block with standard colored and labeled contacts:

• L, brown or black - phase wire.
• N, blue - neutral wire.
• Ls or L’, red - phase return to the lighting lamps.
• ⊥ , yellow-green - protective grounding.

Connection lighting fixtures should be done between pins A and N. Power supply electrical network apply to L and N, strictly observing the polarity of the connection phase. If you are interested in the circuit diagram of the detector, then follow the link at the beginning of the article.

Sensor setup and adjustment

After installation, it is necessary to carry out the procedure for adjusting the motion sensor for lighting. After all, the geometry of the room is different for everyone (humidity, lighting, wall material).

1. LIGHT or LUX - sensitivity threshold for illumination.
2. TIME - trigger timer.
3. SENSE - sensitivity.

The usual limits for adjusting the timer response time are set in most devices from a few seconds to ten minutes. The photosensitivity threshold can only be set in devices that have an appropriate light sensor. It determines the brightness daylight, in which the device stops supplying voltage to the lighting fixtures. Setting the sensor sensitivity is the most subtle and capricious setting. In any case, the sensor should respond to the appearance of a person in the room, and not small animals. When changing the viewing angle of the device, sensitivity adjustment is often required.

Video

According to experts, the connection diagram for a motion sensor for illuminating a certain space does not differ much from a conventional switch, which makes it possible to install such equipment as in country house, and in the squares around it. In addition, both motion-sensitive devices and pass-through switch mechanisms can be used to organize lighting.

In addition, such devices are often connected to other networks, for example:

• alarm systems;
• sound notification;
• other equipment used for the protection and safety of private property.

Ceiling sensors.

For models of ceiling sensors, the protected zone is 360 degrees and is made in the form of a cone with a divergence angle of up to 120 degrees. Thus, a multi-beam barrier is created, when crossed, for example, by a person or animal, the sensor detects a violation and goes into alarm mode.

As a rule, ceiling sensors, depending on the model, are installed at a height of 2.5 - 3 meters from the floor. At the same time, the protected zone in the lower part is from 10 to 20 meters in diameter.

It is better to install them in small rooms, where all four sides need to be monitored simultaneously, and where installing a wall sensor will not be effective.

Standard connection diagrams for motion detection devices

The operating principle of the device is based on detecting movement at a certain distance from the sensor. The device evaluates the light level in the room. If the indicator is below the set value, the light turns on. The light sensor allows you to avoid turning on the device during daylight hours when artificial light is not needed.

A standard device includes elements such as a sensor, photocells and lenses. Switches are usually classified according to a number of criteria: by control method, type of installation, operating principle of sensors, and functional tasks.

According to the control method, switches are divided into 2 types:

• automatic;
• with remote control.

Classification by type of installation includes the following devices:

• ceiling;
• invoices;
• built-in

Models are divided according to the operating principle of the sensors:

• ultrasonic;
• microwave;
• infrared (most common).

By functional characteristics The following devices are distinguished:

• with a sensor that can be switched off manually;
• with connection by timer and shutdown at a given light level;
• with the function of manual control over the time of light supply;
• with shutdown by a timer signal, regardless of the light level.

Products differ in coverage area, signal transmission range, viewing angle (90, 180 or 360 degrees). Switches vary in the class of protection of the housing and the number of simultaneously switched on lighting devices.

Motion sensors are installed not only for lighting local area, but also inside the house itself. For example, a device installed on a staircase will turn on the lights only when it is really necessary - if someone is going up or down it.

Each sensor is designed for a specific sector located in its field of view. The principle of operation is simple - if movement of objects is detected in this area, then a circuit is closed that supplies power to the lighting fixtures. Therefore, the efficiency of the system is determined by the correct choice of installation location, that is, the creation of a “view” of the controlled area necessary under specific conditions.

Lighting devices connected to the sensor can be turned on only while the object is moving in the sector, or with a subsequent turn-off delay from several seconds to 10÷15 minutes. This parameter is preset by the user.

When starting this section, you should immediately note the following. Despite the variety of models, almost all motion sensors are connected to lighting fixtures in a similar way. The exception is lamps that require voltage conversion. But here the whole difference is that the power supply is included in the circuit.

The standard connection system for the vast majority of motion sensors is a three-pin terminal. Two of them are the usual phase (L) and zero (N). The third contact can be indicated by the letter “A”, “L out” or even just an outgoing arrow →. But in any case, this is also a phase, but this one goes to the lighting device when the sensor is triggered.

A. Here is the simplest diagram for connecting a motion sensor to an LED spotlight.

A few clarifications. The power cable of a 220 volt network combines three conductors. Brown (in the diagram, in reality it may have a different color) – phase L, blue – zero N, and green-yellow – protective grounding PE.

PE grounding goes directly to the spotlight - since in most cases there is a metal case, this measure is a necessary condition operational safety.

Zero N is switched equally to the corresponding terminals of both devices.

The phase goes to terminal contact L of the motion sensor.

And finally, from contact A of the sensor terminal, when the device is triggered, the phase will be supplied to contact L of the spotlight. Thus, when the circuit in the motion sensor is closed, the lighting device will turn on.

B. The diagram shown above assumes direct connection of the motion sensor floodlight system to the electrical network. But often a switch is also provided. By the way, there may be different options with it.

So, the following diagram demonstrates that the switch can be installed in a phase break going to the terminals of the motion sensor.

It is quite obvious that when the switch is in the off position, the power is interrupted completely. That is, the motion sensor itself does not work and, accordingly, the phase cannot reach the spotlight. When turned on, the system operates in its characteristic “standby mode”, that is, it reacts by turning on the light to movement in the “sector of responsibility”.

B. But this arrangement of the switch in the circuit, as shown below, has a completely different purpose.

It is clearly visible that the power to the motion sensor is not interrupted. When the switch is in the “off” position, that is, with open contacts, the system operates in its characteristic mode, that is, the sensor controls the activation of the spotlight. But there are often situations when it is necessary to illuminate an area of ​​the yard, so to speak, on an ongoing basis - performing certain chores at dusk, receiving guests, etc.

D. You can apply the scheme with two-button switch. Then, as necessary, you can select the most appropriate operating mode of the system at the current moment.

When both keys are turned off, the system is completely de-energized.

Turning on key No. 1 puts the system into the mode of tracking movement in a given sector and turning on the spotlight based on the sensor.

Turning on key #2 (regardless of the position of key #1) simply turns on the spotlight directly.

D. Sometimes complex configuration territory (premises) forces the installation of two motion sensors, or even more. In this case, they are placed so that the “sector of responsibility” of one intersects with the area of ​​the other. That is, a moving person is constantly in the field of view of the devices.

It is most convenient in such cases to make parallel connection motion sensors. An example is shown in the diagram below.

It is clear that in operation both devices are completely independent of each other, but each of them is equally capable of controlling the spotlight.

The scheme is less commonly used sequential connection sensors, when the phase to each subsequent device comes from the control terminal A of the previous one. It is unlikely that this method would be appropriate in the yard in combination with a spotlight. Therefore, there is no particular point in providing a diagram.

Man has come up with a huge number of electronic devices designed to protect his life and property. At the same time, a convenient and reliable tool today is a motion sensor for turning on the light; there is not a single scheme for turning on these devices depending on the parameters of the controlled room.

A motion sensor for lighting reacts to the appearance of a large object in the area of ​​propagation of its rays or waves, depending on the technology used in the device. The first models of these electronic assistants were initially used to improve the quality of security of industrial facilities. Today they are used almost everywhere and not only to ensure order, but also as a convenient means that allows you to turn on the lighting without unnecessary actions, thereby ensuring comfortable conditions for moving. The motion sensor used to turn on the light reacts to the appearance of a person or large animal in its sensitive area. The reaction to the appearance of an object is the switching of power circuits.

Options for using a motion sensor

In addition to lighting devices, the motion sensor can also be used to activate other warning devices. This could be an audible beacon or a central alarm system. When adding to a security complex, the sensor is mounted at the most important entrances to the building or in the corridors. You can also use the sensor as a switch to turn on the lighting in dark rooms, where you constantly need to turn on the lamp.

It is much easier and more convenient to automate the process. When a person appears in the coverage area, the sensor will automatically close the power supply circuit of the lamp and turn it off after the object leaves the area. Depending on the modification, the sensor can be configured to delay the moment of shutdown after a person disappears from 10 s to 7 m. This will not only provide comfortable conditions of movement, but also save electrical energy, because the light will only turn on when a person is in the range of the emitter and receiver.

Functionality and features of the motion sensor

Before you learn how to install a motion sensor on a light, you need to familiarize yourself with its capabilities and varieties. This will allow you to understand what principle needs to be applied when performing installation of one type or another.

Depending on the installation location of the sensor, they are divided into:

• perimetric - were used as means of monitoring large areas, in particular streets;
• peripheral;
• internal.

According to the method of action:

• ultrasonic;
• microwave;
• infrared active;
• infrared passive.

Based on the type of signal, sensors are divided into:

• thermal;
• sound;
• oscillatory.

Depending on the functionality sensors are divided into the following types:

• Universal or multifunctional. They are used not only to detect movement in the controlled area, but also determine the need for switching on. If the illumination level corresponds to the specified value, the lamp does not turn on; if not, it turns on.
• Indoor. They are mainly used to monitor indoor activity, working as part of an alarm system. Activate alerts.

How to install a motion sensor on a light

Installation of a motion sensor to turn on the light can be done in several ways, depending on the design of the room or some requirements from customers.

Depending on how to install the device, they are distinguished into the following types:

• Overhead. The sensor is mounted on the wall.
• Ceiling. The control device is installed on the ceiling; lighting can be integrated with a light motion sensor in a single housing or located directly next to the lamp.
• Mortise. The device is installed by installing it into a wall; its main purpose is to detect activity in office premises or living rooms.

Variants of motion sensor activation circuits

There are several options for connecting motion sensors to turn on the lights. The choice of a specific one is up to the customer. This is due to the fact that the sensors can be different, that is, with different contact groups. Not all device models can be used to connect devices with high current consumption, for example, spotlights with incandescent lamps. In this case, it is better to use starters as intermediate switching components, and to increase the reliability of the presence monitoring system, use different types sensors, combining their switching circuits. For example, ultrasonic and infrared.

If we consider the models of sensors, depending on the production technology and operating principle, then these can be either ultrasonic or microwave, or infrared. But it should be remembered that the first two types of sensors have a built-in generator high frequency, which can be excited due to various interferences and powerful electromagnetic waves. Therefore, they must be installed in places remote from all these factors. These could be warehouses, checkpoints, etc.

For home use or in environments with a lot of noise, sensors with infrared emitters. In this case, both active and passive ones can be used.

Generalized diagram for switching on motion sensors

The simplest circuit for connecting a motion sensor includes only a few components:

• sensor;
• connecting wires;
• lamp or audio warning system.

Almost all sensor models have a single structural device, which is a housing, a contact block, a scattering sphere or glass. The sensor itself has only 3 contacts, so there are no difficulties with it electrical connection must not be. Moreover, almost every model comes with installation and configuration instructions.

The figure below shows simplest scheme activation of the motion sensor, consisting of the sensor itself and the lamp. Installation of such a sensor can be done in almost any convenient place.

Important points when connecting according to this diagram is to maintain the polarity of the wires. The phase wire from the alternating voltage network must be switched through the sensor to the lamp. You need to pay attention to the color. As a rule, blue is zero, brown is phase, red is the switch output. Color may vary depending on different manufacturers Therefore, it is advisable to use a phase indicator or other devices. As the latter, you can use not only a lighting device, but also sound alarm. When installing a powerful floodlight with a consumption of more than 0.5 kW, it is recommended to use an intermediate starter and install it in a separate mounting box. This is necessary to prevent burnout of contacts when switching a low-resistance load.

Combining a motion sensor with a switch

To ensure constant operation of the lamp, regardless of the level of illumination and the presence of a person in the range of the sensor, a switch can be installed in the circuit. A single-key type switch can be used as it. When it is turned on, the switching contacts of the sensor are bypassed, which ensures constant lighting mode.

It is important to remember that to implement the inclusion of the sensor according to this scheme, it is necessary to strictly monitor the color of the wires in order to prevent unexpected short circuit.

The neutral or neutral wire from the switch goes directly to the luminaire (lamp) from the network, the phase wire passes through the switch, the contacts of which are parallel to the switching group of the sensor. If a starter is used in the circuit, then its winding must be powered from the switch.

Connection diagram for several sensors

The first type scheme received wide application in rooms of simple shape. This can be a square, rectangle or circle, in general, something where only one specific area needs to be controlled. If you want to organize automatic switching on of indoor lighting complex shape with additional branches and bends, for example in curved corridors, then several sensors must be used. But this scheme also has its own nuances. For example, if you need to organize the comfort of movement along a long corridor, but at the same time it is necessary to ensure maximum savings, then the sensors should be turned on independently of each other, that is, in parallel.

If you need to create a reliable security system, then connecting the motion sensor to the light should be done according to the diagram presented below.

Here the sensors are interconnected by a phase wire from the network. The neutral wire is supplied to all sensors and lamps or alarms without intermediate switching. It is important here not to confuse the colors of the wires and control the phase on all devices so as not to create a short circuit in the circuit. When any of the sensors is triggered, the main signal light or sound warning system will turn on.

When creating a system with controlled lamps, a switch is installed parallel to the contact group of sensors. If the circuit consists of several motion sensors, and it is necessary to ensure that each of the lamps is switched on independently, then a switch is installed on each sensor.

Before checking the motion control device, you should make sure that the colors of the wires are correct and that they are securely clamped in the terminals.

How to properly install a light motion sensor

How to properly install a motion sensor that reacts to light so that the system works reliably without false alarms. The first step is to determine the parameters of the room. It is important that the viewing angle of the sensor is maximum and covers a large area.

If the coverage area of ​​one sensor is not enough, then several are used. Moreover, they are installed in the corners of a curved room irregular shape. Installed sensor should not intersect its controlled area with its neighboring one. In addition, it is important to remember another installation rule to avoid false alarms of sensors: there should be no plumbing pipes, power and high-frequency cables, trees and shrubs.

To correctly install a lamp with a motion sensor or a separate sensor, you should pay attention to the instructions that come with each sensor. As a rule, manufacturers present various options installation and their combinations in order to ensure best performance work.

When installing motion sensors outdoors, it is necessary to use protective terminal boxes. The sensors themselves must be securely hidden under the canopies of buildings and protected from snow or rain.

Setting up a motion sensor for lighting

There are several types of sensors on sale depending on functionality. Among them we can highlight:

• Simple. They are used only for switching the power supply circuit of a lamp in constantly dark rooms, reacting to movement in the controlled area.
• Universal. It is possible to adjust the operating time after automatic switching on(TIME), sensitivity threshold in infrared sensors(SENS) and the moment of switching on at a certain level of illumination (LUX). Setting up a motion sensor for lighting can be done within 10 seconds to 7 minutes, which is usually required for staircase landings. The staircase lighting circuit with a motion sensor in this case is no different from those given above.

The adjustable sensor allows for better energy savings and provides the most comfortable conditions for moving around the room, depending on the light level.

Video on the topic

A motion sensor is most often used to turn on lights when you pass or are near them. With its help, you can save electricity and save yourself from having to flip the switch. This device is also used in alarm systems to detect unwanted intrusions. In addition, they can also be found on production lines, where they are needed to automatically perform any technological tasks. Motion sensors are sometimes called presence sensors.

Types of motion sensors

Motion sensors are distinguished by their operating principle; their operation, accuracy and features of use depend on this. Each of them has strengths and weak sides. The final price of such a sensor also depends on the design and type of element used.

The motion sensor can be made in one housing or in different housings (the control unit is separate from the sensor).

Contact

The simplest motion sensor option is to use or. Reed switch (sealed contact) is a switch that is activated when magnetic field. The essence of the work is to install a limit switch with normally open contacts or a reed switch on the door, when you open it and enter the room, the contacts will close, turn on the relay, and it will turn on the lighting. Such a diagram is shown below.

Infrared

They are triggered by thermal radiation and react to temperature changes. When you enter the field of view of such a sensor, it is triggered by thermal radiation from your body. The disadvantage of this detection method is false positives. Thermal radiation is inherent in everything that is around. Here are some examples:

1. stands in a room with an electric heater, which periodically turns on and off according to a timer or thermostat. When the heater is turned on, false alarms may occur. You can try to avoid this by taking a long time and carefully adjusting the sensitivity, as well as by trying to direct it so that there is no heater in the direct line of sight.

2. When installed outdoors, it may be triggered by gusts of warm wind.

Overall these sensors work fine and are the cheapest option. A PIR sensor is used as a sensitive element, it creates electric field proportional to thermal radiation.

But the sensor itself does not have a wide directionality; a Fresnel lens is installed on top of it.

It would be more correct to say - a multi-segment lens, or a multilens. Pay attention to the window of such a sensor, it is divided into sections; these are lens segments; they focus the incoming radiation into a narrow beam and direct it to the sensitive area of ​​the sensor. As a result, radiation beams from different directions fall on the small receiving window of the pyroelectric sensor.

To increase the efficiency of motion detection, dual or quad sensors or several separate ones can be installed. Thus, the field of view of the device expands.

Based on the above, it should also be noted that the sensor should not be exposed to light from the lamp, and there should be no incandescent lamps in its field of view, this is also a strong source of IR radiation, then the operation of the system as a whole will be unstable and unexpected. IR rays don't travel well through glass, so it won't work if you're walking behind a window or glass door.

This is the most common type of sensor; you can buy it or you can assemble it yourself, so let’s look at its design in detail.

How to assemble an IR motion sensor with your own hands?

The most common option is the HC-SR501. It can be bought at a radio parts store, on Aliexpress, and is often supplied in Arduino kits. Can be used in conjunction with a microcontroller or independently. He is printed circuit board with a microcircuit, harness and one PIR sensor. The latter is covered with a lens, there are two potentiometers on the board, one of them regulates the sensitivity, and the second is the time at which a signal is present at the output of the sensor. When motion is detected, a signal appears at the output and lasts for the set time.

It is powered by a voltage of 5 to 20 volts, operates at a distance of 3 to 7 meters, and the output signal lasts from 5 to 300 seconds, you can extend this period if you use a microcontroller or a time delay relay. The viewing angle is about 120 degrees.

The photo shows the sensor assembly (left), lens (bottom right), reverse side boards (top right).

Let's take a closer look at the board. There is a sensitive element on its front side. On the back there is a microcircuit, its wiring, on the right there are two trimming resistors, where the top one is the signal delay time, and the bottom one is the sensitivity. In the lower right part there is a jumper for switching between modes H and L. In mode L, the sensor produces an output signal only for the period of time set by the potentiometer. Mode H produces a signal while you are in the range of the sensor, and when you leave it, the signal will disappear after a time set by the upper potentiometer.

If you want to use a sensor without microcontrollers, then assemble this circuit, all elements are labeled. The circuit is powered through a quenching capacitor, the supply voltage is limited at 12V using a zener diode. When a positive signal appears at the sensor output, relay P is turned on through an NPN transistor (for example BC547, mje13001-9, KT815, KT817 and others). You can use a car relay or any other with a 12V coil.

If you need to implement some other functions, you can use it in conjunction with a microcontroller, for example. Below is the connection diagram and program code.

Ultrasonic

The emitter operates at high frequencies - from 20 kHz to 60 kHz. This leads to one problem - animals, such as dogs, are sensitive to these frequencies, moreover, they are used to scare them away and train them. Such sensors can irritate them and this causes problems.

The ultrasonic motion sensor operates on the Doppler effect. The emitted wave, reflected from a moving object, returns and is received by the receiver, while the wavelength (frequency) changes slightly. This is detected and the sensor produces a signal that is used to control a relay or triac and switch the load.

The sensor processes movements well, but if the movements are very slow, it may not work. The advantage is that they are not sensitive to changes in environmental conditions.

Laser or photo sensors

They have an emitter (for example, an IR LED) and a receiver (a photodiode of a similar spectrum). This is a simple sensor, it can be implemented in two versions:

1. The emitter and photodiode are mounted in the passage (controlled area) opposite each other. When you pass through it, you block the radiation and it does not reach the receiver, then the sensor is triggered and the relay is turned on. This can also be used in alarm systems.

2. The emitter and the photodiode are located next to each other, when you are in the range of the sensor, the radiation is reflected from you and hits the photodiode. This is also called an obstacle sensor and is successfully used in robotics.

Microwave

It also consists of a transmitter and receiver. The first generates a high-frequency signal, the second receives them. When you pass nearby, the frequency changes. The receiver is configured in such a way that when the frequency changes, the signal is amplified and transmitted to an actuator, such as a relay, and the load is turned on.

Microwave motion sensors are very sensitive, allowing you to “see” an object even behind a door or behind glass, but this also causes problems of false alarms when the object is outside the field of intended visibility.

These are quite expensive sensors, but they respond to even the smallest movements.

Capacitive devices work in a similar way. Such a diagram is shown below.

How to connect a motion sensor?

You can come up with countless options and schemes for connecting a motion sensor depending on your needs; sometimes you need the system to be triggered when moving in different places, for example street lighting along the way from the house to the gate and vice versa, in other cases it is necessary to force the lights on or off, etc. We will look at several options.

Typically a motion sensor has three wires or three terminals to connect to:

1. Coming phase.

2. Phase leaving to power the load.

If you do not have enough sensor power, use an intermediate relay and. To do this, instead of a light bulb in the circuits below, the coil terminals are connected.

The photo below shows the terminals to which the power wires are connected.

Conclusion

Using motion sensors is, as much as it sounds, a step. Firstly, it will help save energy and lamp life. Secondly, it will eliminate the need to flip the switch every time. For outdoor lighting, with the correct settings, you can make the light turn on when you approach the gate of the house.

If the distance from the gate to the house is 7-10, you can get by with one sensor, then you won’t have to lay a cable to the second sensor or assemble a circuit with a pass-through switch.

As already mentioned, IR sensors are the most common; they are sufficient for simple tasks; if you need greater sensitivity or accuracy, take a closer look at other types of sensors.

The motion sensor is infrared electronic device, which makes it possible to detect the presence and movement of a living creature and helps connect power to lighting devices and other electrical devices.

As a rule, a motion sensor is used to turn on lighting fixtures, but they can also be used for other purposes.

By location:

• perimetric - used for street lighting;
• internal;
• peripheral.

Based on the operating principle:

• ultrasonic - react to high-frequency sound waves;
• microwave – high frequency radio waves;
• infrared - use heat radiation;
• active – there is a transmitter and receiver of infrared radiation;
• passive – there is no transmitter.

By type of operation:

• thermal - react to temperature changes at the trigger point;
• sound - triggered by an impulse when the air vibrates from sounds;
• oscillatory - respond to change external environment and magnetic field when objects move.

By device:

• single-position – the presence of the receiver and transmitter together in one block;
• two-position – the transmitter and receiver are used in different housings;
• multi-position - two or more blocks with transmitters and receivers.

• multifunctional sensors used to determine movement and lighting levels indoors;
• room sensor is used for monitoring and control systems;
• an external light sensor is used to measure the degree of external lighting;
• the overhead light sensor is designed for wall installation;
• a ceiling light sensor is installed in a suspended ceiling;
• The built-in light sensor is used to detect movement in office and residential premises.

Motion sensor circuit for lighting

Connecting the motion device is easy, no more complicated than the circuit how to connect a motion sensor to a light bulb. In both cases, the electrical circuit is closed or opened.

If needed Full time job light in the complete absence of any movement, a switch can be included in the circuit device by connecting it in parallel to the motion sensor.

Thanks to this, when the switch is turned on, the lighting will be turned on via another chain, bypassing the device, since when the switch is off, control over the lighting state will completely return to the motion sensor.

It often happens that the specific shape of a room physically does not allow one device to cover the entire area of ​​the room.

For example, in a curved corridor, if you install one motion sensor, then it won't work when the object moves around the bend.

In this case, a device connection diagram is used when several sensors are connected in parallel to each other.

In other words, the zero phase is separately and uninterrupted; it is supplied to each device, after which all outputs are connected to the lamp. As a result, the activation of any of these sensors closes the circuit, supplying voltage to the lamp.

With this connection you need to know that both devices must be connected from the same phase, otherwise a short circuit will occur between the phases.

Moreover, technical specifications And design features premises also have a direct impact on connectivity.

The device must be installed as follows: so that he gets the largest possible viewing angle to the intended areas of movement, but should not screen interior parts, as well as window and door openings.

Motion sensors have a long-term permissible power value of five hundred to a thousand watts. This limits their use in high load environments.

If there is a need to connect several powerful lamps through the devices at once, then the best solution a magnetic starter will be used.

When purchasing a device, The kit should contain standard instructions for its installation, connection and configuration. Also, the diagram should be on the body of the device itself.

Under the cover of the device there is a connecting block, as well as three colored contacts connected to it, which are located outside the case. The wires are connected to the connecting terminals. If a multi-core cable is used for connection, then it is better to use special NShVI sleeve lugs.

The current to the device comes from the network through two wires: phase L (brown wire) and zero N (blue wire). After phase L leaves the motion sensor, it arrives at one end of the light bulb. The other end of the incandescent lamp is connected to the zero contact N.

When movement appears at the control point the sensor is triggered and closes the relay contact, which leads to the arrival of phase to the lamp and the light turns on.

Since the connection terminal block has screw clamps, the wires are connected to the device using NShVI lugs.

You should know that connecting a phase cable best done by schematic diagram , which complements the manual.

• After connecting the wires, you need to put on the cover and move on to the next stage - connecting the cables in the junction box.
• There are seven wires in the box, two from the lamp, three from the sensor and two supplying zero and phase. In the power cable the phase is colored Brown color, zero – in blue.
• On the wire that is connected to the device, the white cable is the phase, the green cable is zero, the red cable needs to be connected to the network.
• The wires are connected approximately like this: the phase cable of the supply wire is connected together with the phase wire from the device (white and brown cable). Next, connect the neutral wire from the power cable, the neutral cable from the device (green) and the neutral cable from the lamp.
• There are two free cables left (red from the movement device and brown from the lamp) - they are connected together. The connection is complete.

The motion sensor is connected to the lamp. Then we apply power, the device reacts to movement, closes the circuit and turns on the light.

Can the device be connected with a switch?

To ensure that the light does not turn off for some time, regardless of the degree of illumination and movement, you can apply the connection diagram for a device with a switch by connecting an ordinary switch to the circuit in parallel with the motion sensor.

Due to this connection, you can keep the light bulb on for the required time when the switch is on. If the lighting control needs to be transferred entirely to the device, then the switch is turned off.

Setting up your device for lighting

Device setup is another important stage motion sensor operation. Almost any device with which you can control lamps has additional settings that make it possible to achieve normal operation.

Such settings look like special mini-devices that are designed for regulation - this is setting the TIME shutdown pause, adjusting the degree of illumination LUX and setting the sensitivity to infrared radiation SENS.

1. Setting the switch on depending on the level of illumination. LUX adjustment is used for correct operation of the device during the day. The device will operate at a lower level of illumination compared to the minimum value. Hence, the sensor will not work at higher levels of illumination compared to the set threshold value.
2. Setting the time. Using the TIME setting, you can set the amount of time the lights will remain on since motion was last detected. The time interval can vary from 1 to 600 seconds.
3. Setting device sensitivity. You can adjust the sensitivity to connection, depending on the volume and distance of the object, using the SENS regulator. The response of the device directly depends on the degree of sensitivity. With a large number of sensor activations, it is better to reduce the sensitivity and set the brightness of the IR illumination to which the motion sensor will respond.

Objects that emit heat or light should not fall into the field of view of a sensor installed outdoors. You should not install the device near trees and bushes, which will interfere with the correct detection of movement.

You have to try minimize probable exposure to electromagnetic radiation, which may cause false alarms of the device.

The sensor must be aimed directly at the area where motion detection should trigger the lighting.

It is necessary to keep the sensor clean, as contamination negatively affects the quality of the device’s operation and range.