Man's desire for comfort is unchanging. Household amenities are created by public utilities, for which they charge an appropriate fee, and everything else related to improving comfort is done by people themselves. When a small child appears in the family, every trip to the bathroom or toilet is accompanied by requests to turn on the light, so one of the parents must help. Everyone finds different outputs, while many decide to connect a motion sensor to a light bulb.
What is this device?
You have heard about it, maybe even more than once, but most likely you do not really understand its purpose and features. Connecting a motion sensor for lighting allows you to automatically turn on the light if a person appears in his field of vision. You can describe the principle of its operation in general terms. When activity appears in the controlled area, the motion sensor relay closes the electrical circuit, due to which the light turns on. The device switches off after a while.after the disappearance of a person from the field of view of the sensor, it is set individually.
IS-215
Before the motion sensor connection diagram is considered, it is necessary to say which models can be used for such purposes. For example, the security sensor IS-215 can be a good option. Its standard power supply is 12 volts with a normally closed group of contacts. You can connect a light control circuit to it, which will then be installed in the room of interest. In this case, a motion sensor connection scheme was chosen with a fairly simple principle of operation: when there is some activity in the field of view, the circuit is closed, which leads to the switching on of the lighting devices connected to the sensor. If there is no movement, the circuit opens automatically, turning off the lamp.
The downside of this solution
The sensor works well. If you use it in the restroom, then when you enter there, the lighting automatically turns on, and a minute after leaving it, the light goes out smoothly. In this case, there is only one drawback, but a very significant one: if you stay motionless in the toilet for a minute, the light goes out, so you need to at least move your hand to extend the time. A weak click of the relay indicates that the sensor has detected movement.
DD-008
If you are afraid of a complex motion sensor connection scheme, you can buy a ready-made device - DD-008. Its feature is the presence of a pair of hinges that rotate the sensor. Hostedsuch a device so as to cover the bathroom to the maximum.
This version of the sensor has adjustment settings: turn-off time interval, sensitivity and light level. The first parameter is for setting the amount of time the light will remain on after motion is detected. Its limits are from ten seconds to seven minutes. The level of illumination depends on the time of day. If during daylight hours the sensor detects movement, but there is enough natural light in the room, it does not work. There is logic in this. After all, during the day in a well-lit room, you do not need to turn on the light. Sensitivity is another adjustment setting. The higher this parameter, the faster the sensor works.
Operational problems
After a week, for many, such a scheme for connecting a motion sensor for lighting, as described above, may fail. The device may burn out, as well as the incandescent lamp used in the ceiling. Usually the thyristor in the control circuit burns out. The fact is that it is inappropriate to use discharge lamps to connect the sensor. Due to the burnout of the filament of the lighting lamp, a current surge occurs, which is similar to a short circuit. If there are no more additional fuses in the load circuit, this results in the loss of the thyristor.
You can unify the light control scheme for any lamps. The relay circuit is convenient, but it makes no sense to develop it yourself, you can buy a ready-made solution, namelysensor DD-009. The motion sensor connection scheme requires the mandatory use of protection devices in the form of fuses, otherwise the manufacturer does not guarantee reliable operation. Some install both the fuse itself and the neon lamp directly into the body of the device. DD-009 differs from DD-008 in the presence of only a couple of settings - the duration of the light off delay and sensitivity. For a restroom, this set is enough.
At the moment, there is such an extensive range of motion sensors on sale that it simply does not make sense to solder light control circuits. And such an acquisition solves a rather important task - no one will need to constantly worry about turning the lights on and off in the bathroom and toilet.
What does the market offer?
The market offers a huge variety of motion sensors. There is a separate view for each specific task. For example, some devices are best installed in a corridor or other room through which they often pass, but do not linger there. Motion is detected by the sensor, and the delay time of the light on is kept to a minimum. It is absolutely impossible to install such a device in a bathroom or toilet, otherwise, for constant lighting in the room, you will need to make some movements. That is why it is so important to look into the device passport in order to study its characteristics before using it in each individual case. As the main parameter that you need to focus on, you can name the duration of the turn-off delaylight after the cessation of movement in the room.
Where to install?
The connection of the motion sensor to the bulb should be made depending on the parameters of the room and the location of the doors. There is one important rule here: the device responds well to any movement, but not to direct approach or distance from it. That is why it is best to install it on the ceiling or on the side wall. He must capture the opening door with his field of view, then it will work before a person enters the room.
Indoors
You can consider the case where you need to install the sensor in a corridor with several doors and no windows. In this case, the absence of window openings is even convenient, since there is no need to adjust different levels of illumination. A sensor is quite appropriate, which is triggered with every movement in the corridor, regardless of the time of day. If there is one door on each side, then the task becomes a little more complicated, since it requires simultaneous control of all of them so that a person entering the corridor does not fall into darkness.
For example, the Legrand motion sensor connection diagram assumes its installation in the corner of the room, since it has a 120 degree view. In the middle of the wall, it should not be mounted, as this will lead to the loss of one door from view. In this case, when opening three doors, the light will turn on immediately, and for the fourth one there will be some delay.
Stairwell
Lightingstairwell is carried out due to the fact that the sensor is mounted on the wall or ceiling above the stairs so that the entire flight of stairs is in its coverage area. Light fixtures should be attached in the same way. For lighting in this case, the period can be set small - 1-3 minutes, this will be enough.
IEK devices are popular now. The IEK motion sensor connection scheme involves setting certain parameters for it. The sensitivity should be maximum in the absence of light, and at some level of illumination - medium or minimum. A multi-storey building requires a special lighting plan. If the building has three floors, then two sensors are required, if four - three sensors. When fixing the movement on some section of the stairs, the entire path for a person will be illuminated by an appropriate device. You will be able to go up and down the fully lit stairs.
Utility rooms
In utility rooms or in storage rooms, the motion sensor connection scheme involves its installation above the front door or slightly to the side, it all depends on the layout of a particular room. It is necessary to configure the device so that the interval for turning off the light is maximum, and the response threshold must be selected depending on the constant level of illumination. When a person enters the room, the sensor is triggered and the light will be on for 10-15 minutes. If a person needs more time, then you can wave your hand so that the lightand continued to burn. If there are racks in the room or if it is divided into several rooms, a scheme for connecting two motion sensors or more of them is used. With the correct installation of the detectors, the convenience for the person in the room will be maximum.
Street lighting of a car park
Connecting a motion sensor to a spotlight is appropriate for lighting large outdoor spaces. The selection of a spotlight is carried out depending on the required power, that is, the brightness of the lighting that is needed, and it should be fixed at a sufficient height near the car park. The sensitivity of the sensor should be medium or minimal, which excludes the inclusion of light in the daytime. And the operating time should be maximum, that is, 10-15 minutes, depending on the specific model. If movement is detected in the parking area, the searchlight will turn on for 10-15 minutes. The use of such a sensor brings additional benefits in the form of scaring away unwanted guests who have entered the parking lot, because a bright light that suddenly turns on will frighten off intruders.
Installation Features
Connecting the motion sensor to the light bulb must be done in such a way that the Fresnel lens - the main element of this device - is free from various objects that can block the view. For a motion sensor, the viewing angle is the main characteristic. Fresnel lenses are embossed films or sheets that are placed around a circle. Under themcontrol is the fan-shaped division of the observation area. These lenses receive, focus and change infrared rays, including a sensor located in the depth of the device. If necessary, you can limit the viewing radius of the lens due to the fact that individual segments of the "fan" will be covered with insulating tape or self-adhesive tape.
This is how the infrared motion sensor works. The connection scheme in this case is selected depending on the tasks. You can consider several of the most convenient options.
Connecting a device
The connection diagram for a security motion sensor, as well as a lighting one, is usually shown directly on the device case. Three wires come out of the device itself, which are connected to an adapter junction box. Wire colors are blue, brown and red. They may be different, but the motion sensor connection diagram is traditionally given for the wires of the above colors.
It is quite possible that you will also need the left control switch, which will work in parallel with the sensor. This is often needed in rooms where it is sometimes necessary to keep the light on for quite a long time. In this case, the switch will be in the “on” position, then the light will burn continuously. Otherwise, it will only light up when the device is triggered.
Conclusions
Connecting two motion sensors is also a rather difficult task, since they must be connected in a circuit with one lighting fixture. When all installation work is completed,you need to check the operation of the device. If the light in the room turns on immediately after you enter it, then you have made the settings correctly.
Now you know how to connect a motion sensor for lighting. Good luck!
