Step regulator of 380V engine rotation speed. Five-stage transformer speed controllers. Three-phase fan speed controllers
Speed controllerssingle-phase asynchronous motorsMTY-1.5 ON and MTY-2.5 are designed to smoothly change the fan speed by changing the operating voltage at the output using a thyristor. It is possible to control several motors if the total current does not exceed the permissible value of 1.5 A for the MTY-1.5 device and 2.5 A for the MTY-2.5 device. MTY speed controller regulates from minimum possible meaning voltage 0 V to 220 V. The motor controlled by MTY must have built-in overheating protection. Also MTY speed controller equipped with 220V outputs (L1) for controlling damper drives, electric heaters and others external devices. These devices are supplied for wall mounting. At the same time, MTY 1.5 ON is supplied in a housing with a degree of protection IP54, and MTY 2.5 - with a degree of protection IP44.
When choosing the type of speed controller, it is necessary to take into account the starting current values. Fans to be used with such controllers require built-in motor overheating protection and must allow speed control by a thyristor controller (by varying the supply voltage).
Thyristor speed controllers MTY cost only 2,030 rubles, and they are always kept in stock on our. MTY-1.5 are used to control the following single-phase (220V) fans:
In the RoomKlimat online store you can buy high-quality ventilation and climatic equipment, components and automation wholesale and retail at the most affordable prices in Moscow. We offer high quality five stage transformer speed controllers for ventilation units, characterized by reliability and long service life. Automation and components can be ordered on our website with delivery to any region of Russia.
Basic Description
The single-phase and three-phase five-stage transformer speed controllers presented in our store are designed for single- and three-phase fan motors, respectively. This equipment allows you to adjust the fan rotation speed. The operation of this device is based on the use of a single-phase autotransformer to control the supply voltage of the electric motor. The speed controllers presented in the catalog are supplied in a durable housing made of high-quality plastic. Some models are equipped with built-in thermal protection.
All models of speed controllers presented on our website have a high degree of protection and differ high quality and answer international standards security. All products are covered by a service guarantee.
Speed controllers are used to control fan speed and flow air masses, created by these fans.
They are specialized for manual control of the rotation speed of electric motors of fan units. Regulators can also change the direction of air flow.
Speed controllers are mandatory elements fan operation common system indoor air conditioning and ventilation. With their help, you can change - decreasing or increasing, the flow of air masses, change its intensity, direction, leading them to maximum comfortable conditions.
According to phase design, speed controllers are divided into single-phase and three-phase.
According to the principle of operation, speed controllers are divided into:
Seven-volter
Triac controllers are used to smoothly change the rotation speed of single-phase asynchronous motors. The operation of the regulator is based on changing the output voltage using a triac.
Control is carried out from the minimum expected voltage (with stable fan rotation) to 220 V.
The input circuit of the regulator has a fuse, which serves as protection against overheating. In order to reduce engine noise at low rotation speeds, an additional smoothing capacitor is installed.
Application
The regulator is used in ventilation and air conditioning systems to smoothly regulate the rotation speed of a 220 V fan motor. For powerful fans, step-controlled rotation speed regulators are used - transformer ones.
Transformer type regulators
Such frequency converters provide the function safe work fan motor of any power and control the speed by changing the frequency of the voltage supplied to the frequency converters.
Similar control method ventilation system guarantees smooth control of fan speed over a wide range with increased rigidity of mechanical characteristics.
At the same time, controlling the rotation speed does not cause an increase in slip values asynchronous motor, therefore, power indicators with such regulation are reduced to a minimum.
Transformer motor speed controller STR-1 changes the speed by changing the supplied voltage. The voltage is generated using an autotransformer.
The regulator can only be combined with those motors whose speed can be changed by the applied voltage. When choosing a transformer, it is important to know the maximum current consumed by the motor.
The fan is one of the inconspicuous but extremely important devices that help create favorable conditions for work, relaxation and just having a good time.
Without it, computers, refrigerators, air conditioners and other equipment will not be able to function. For maximum efficient work various devices use a fan speed controller.
From our material you will learn about what types of regulators there are and the features of their operation. We will also tell you how to assemble the device with your own hands and what you will need for this.
Purpose of the device for speed control
When an air conditioner or fan constantly operates at the maximum power provided by the manufacturer, this adversely affects its service life. Some parts simply cannot withstand such a rhythm and quickly break.
A regulator is used to slow down the fan speed. Moreover, there are models that serve both one and several channels simultaneously. For example, 6 channel
Also, often in refrigeration units, computers and other equipment, certain elements overheat during operation. To prevent them from melting, the manufacturer has provided for their cooling by operating fans.
But not all tasks performed require maximum speed fan/cooler movement. When using a computer for office work or maintaining a constant temperature in refrigeration unit the load is significantly less than when performing complex mathematical calculations or freezing, respectively. A fan that does not have a regulator will rotate at the same speed.
Manufacturers offer various models regulators that you can install yourself using the recommendations from the instructions
The accumulation of a large number of powerful equipment operating in one room can create noise at a level of 50 decibels or more due to simultaneously operating fans at maximum speed.
It is difficult for a person to work in such an atmosphere; he gets tired quickly. Therefore, it is advisable to use devices that can reduce the fan noise level not only in production workshops, but also in office premises.
In addition to overheating individual parts and noise reduction regulators allow rational use of equipment, reducing and increasing, if necessary, the speed of rotation of the equipment blades. For example, in climate control systems used in many public places and production premises.
One of the important parts of smart rooms are speed controllers. Their operation is ensured by indicators of temperature, humidity, and pressure sensors. Fans used to mix the air in the gym production workshop or office space, help save money spent on heating.
Powerful ventilation systems use transformer speed controllers. Their main disadvantage is their high cost.
This occurs due to the uniform distribution of heated air circulating in the room. Fans force the upper warm layers down, mixing them with the cooler lower layers. After all, for human comfort it is important that there is warmth in the lower part of the room, and not under the ceiling. Regulators in such systems monitor the speed of rotation, slowing down and accelerating the speed of the blades.
Main types of regulators
Fan speed controllers are in demand. The market is replete with various offers and the average user who is not familiar with the features of devices can easily get lost among the various offers.
The regulator should be selected taking into account the power of the equipment to which it will be connected
Regulators differ in their operating principle.
The following types of devices are distinguished:
- thyristor;
- triac;
- frequency;
- transformer
First type devices is used to adjust the speed of single-phase devices that have overheating protection. The speed change occurs due to the influence of the regulator on the power of the supplied voltage.
Second type is a type of thyristor device. The regulator can simultaneously control DC and AC devices. Characterized by the ability to smoothly decrease/increase the speed of rotation at a fan voltage of up to 220 V.
To control the speed of 2 or more fans, you can use a 5-channel controller
Third type devices changes the frequency of the supplied voltage. The main task is to obtain a supply voltage in the range of 0-480 V. The controllers are used for three-phase equipment in room ventilation systems and in powerful air conditioners.
Transformer controllers can operate with single- and three-phase current. They change the output voltage, regulating the fan and protecting the device from overheating. They can be used in automatic mode to regulate the speed of several powerful fans, taking into account the readings of pressure, temperature, humidity sensors and others.
Transformer regulators are reliable. They are able to work in complex systems, adjusting the fan speed without constant user intervention
Most often, triac regulators are used in everyday life. They are classified as XGE type. You can find many offers from different manufacturers– they are compact and reliable. Moreover, the price range will also be very wide.
Transformer devices are quite expensive - depending on additional features, they can cost $700 or more. They belong to the RGE type regulators and are capable of regulating the speed of very powerful fans used in industry.
Features of using devices
Fan speed controllers are used in industrial equipment, in office premises, gyms, cafes, and other public places. You can also often find such controllers in climate control systems for home use.
To use the speed changer, simply connect it to the fan
Ventilation systems used in fitness centers, as well as in office premises, most often contain a rotation speed regulator. And it's not easy cheap option, but an expensive transformer device capable of regulating the rotation speed of powerful devices.
Image gallery
Depending on design features controllers are:
- mechanical control;
- automatic.
Autotransformer regulators are most often used in complex systems, where the command to action is provided by indicators obtained from a temperature, pressure, motion, humidity or photosensor. By slowing down the rotation speed, the devices reduce energy consumption.
Regulators with mechanical control connected according to the instructions and diagram. They can replace the usual switch by mounting the controller into the wall
Mechanical control of the controllers is carried out manually - the device contains a wheel that allows you to smoothly or stepwise change the rotation speed. This can often be found in triac models.
Among the regulators used to optimize the operation of industrial and household equipment, one can note such devices as Vents, SeBeP, Vortice, EnergySaver, Delta t°, Telenordik and others.
The most common option for using control equipment in a domestic environment is a computer and laptop. This is where the regulator is most often used, controlling and changing the speed of the cooler. Due to this device, the equipment creates significantly less noise during operation.
For computers you can choose the most suitable option based on personal preferences - there are a huge number of offers on the market
Cooler controllers come in both simple and additional features. These can be models with backlight, with a temperature sensor, with an alert signal, with an emergency shutdown, etc.
By appearance There are regulators with and without display. The first option is more expensive, and the second is cheaper. This device is often called a reobass.
Manufacturers offer models that control the operation of one or more fans. Good reviews They use cooler speed controllers from companies such as Scythe, NZXT, Reeven, AeroCool, Aqua Computer, Strike-X Advance Black, Akasa Fan Controller, Cooler Master, Innovatek, Gelid, Lian Li, etc.
A cooler regulator that does not have a display costs much less. But additional functions he doesn't have
Using a controller in computer operation significantly reduces the noise level, which has a positive effect on the user’s well-being and mood - nothing buzzes or roars. Also, which is very important, it helps to avoid overheating of the equipment itself, thereby extending its service life.
Controller connection rules
To connect the fan speed controller, you can use the services of specialists or try to do it yourself. There are no fundamental features in connection - it is quite possible to cope with such a task on your own.
Depending on the design features and type of equipment being serviced, controllers can be installed:
- on the wall as an overhead socket;
- inside the wall;
- inside the equipment housing;
- in a special cabinet that controls smart devices at home. This is usually a terminal block;
- connect to the computer.
To connect the regulator yourself, you must first carefully read the instructions offered by the manufacturer. Such a document usually comes with the device and contains useful recommendations both in terms of connection, use and maintenance.
Wall-mounted and in-wall models must be secured to the wall with screws and dowels. Components are most often supplied by the manufacturer along with the main device. Also in the instructions for the regulator you can see a diagram of its connection. This will make it much easier further work for its correct installation.
The speed controller is connected to the cable supplying the fan, according to the manufacturer's diagram. The main goal is to cut the phase, neutral and ground wires and connect the wires to the input and output terminal blocks, following the recommendations. In the case where the fan has its own separate switch, it will have to be replaced with a regulator, dismantling the first one as it is unnecessary.
Do not forget that it must correspond to the maximum voltage current of the connected device.
It is important to find the inlet and outlet openings on the connected device for connecting the power cable of the appropriate cross-section. The diagram supplied by the manufacturer will help with this.
If you have to connect the controller to a PC, you first need to find out what the maximum permissible temperature individual components of technology. Otherwise, you may permanently lose your computer, which will overheat and burn out. important details– processor, motherboard, graphics card and others.
The model of the selected reobass also has instructions and connection recommendations from the manufacturer. It is important to adhere to the diagrams given on its pages when self-installation device.
If there is a need to connect more than 1 fan, then you can buy a multi-channel rheobass
There are regulators and devices built into the housing that are purchased separately. To connect them correctly, you should follow the instructions.
For example, a built-in controller has on/off buttons on the outside system unit. The wires coming from the regulator are connected to the cooler wires. Depending on the model, the rheobass can control the speed of 2, 4 or more fans in parallel.
For computer fans and others used at home, you can make a regulator yourself
A separate regulator for the cooler is installed in a 3.5 or 5.25-inch bay. Its wires are also connected to coolers, and additional sensors, if included, are attached to the corresponding components of the system unit, the state of which they will monitor.
Assembling the device yourself
You can assemble the fan speed controller yourself. To do this you will need the simplest components, a soldering iron and some free time.
To make your own controller, you can use various components, choosing the most suitable option for yourself.
So, to make a simple controller you need to take:
- resistor;
- variable resistor;
- transistor.
The base of the transistor must be soldered to the central contact of the variable resistor, and the collector to its extreme terminal. To the other edge of the variable resistor you need to solder a resistor with a resistance of 1 kOhm. The second terminal of the resistor should be soldered to the emitter of the transistor.
The manufacturing scheme of a regulator consisting of 3 elements is the simplest and safest
Now all that remains is to solder the input voltage wire to the collector of the transistor, which is already connected to the extreme terminal of the variable resistor, and the “positive” output to its emitter.
To test your homemade product in action, you will need any working fan. To evaluate a homemade reobass, you will need to connect the wire coming from the emitter to the fan wire with the “+” sign. The homemade output voltage wire coming from the collector is connected to the power supply.
Having finished collecting homemade device to adjust the speed, it must be checked in operation
The wire with the “–” sign is connected directly, bypassing the homemade regulator. Now all that remains is to check the operation of the soldered device.
To decrease/increase the speed of rotation of the cooler blades, you need to turn the variable resistor wheel and observe the change in the number of revolutions.
This homemade device safe for use, because the wire with the “–” sign goes straight. Therefore, the fan is not afraid if something suddenly shorts in the soldered regulator.
Such a controller can be used to adjust cooler speed, and others.
Conclusions and useful video on the topic
Video about the features of connecting and using a fan speed controller from the Vents company:
Video information on creating a fan speed controller:
Review of electronic autotransformer fan speed controller:
Having familiarized yourself with the types of fan speed controllers and the rules for connecting them, you can choose the most suitable one. best option, able to satisfy the user's needs. If you wish, you can entrust installation issues to specialists. If you want to test your strength, then a simple device is easy to assemble yourself.
> SELPRO speed controllers
Company (Italy), one of the leading European manufacturers fan speed controllers, specializing in the production of controllers that change the rotation speed by changing the voltage. SELPRO speed controllers are approved for use by the largest German manufacturers axial fans: ebm-papst And Ziehl-Abegg.
(control by signal 4-20mA, 0-10V, NTC from sensor)
The VTM300 series are designed for automatic regulation asynchronous (AC), three-phase motors, axial and centrifugal fans. It has 1 input and 5 different modes of regulating the remote control signal are available.
- depending on pressure
- protection class IP55
| Model | Supply voltage (V/f/Hz) |
Operating current (A) |
Max. power (kVA) |
Power consumption (W) |
Dimensions (mm) |
Weight (kg) |
Price EUR) |
|---|---|---|---|---|---|---|---|
| VTM312 - 401 - 00S001 | 400/3/50 | 12 | 8 | 48 | 230*300*128 | 2,5 | 476 |
| VTM320 - 401 - 00S001 | 400/3/50 | 20 | 14 | 72 | 230*300*158 | 3,8 | 588 |
Three-phase fan speed controllers
The RDM300 series are designed for manual or automatic control of asynchronous (AC), three-phase motors, axial and centrifugal fans, with control system devices. Has 2+1 inputs and 14 different control modes are available.
- regulation of rotation speed by changing voltage from 0% to 100%
- external control signal 4-20mA, 0-10V, NTC
- designed for three-phase fans,
- protection class IP55
- regulator power supply 400V/3/50Hz
| Model | Supply voltage (V/f/Hz) |
Operating current (A) |
Max. power (kVA) |
Power consumption (W) |
Dimensions (mm) |
Weight (kg) |
Price EUR) |
|---|---|---|---|---|---|---|---|
| RDM312 - 401 - 00S00 | 400/3/50 | 12 | 8 | 48 | 199*311*128 | 2,7 | 700 |
| RDM320 - 401 - 00S00 | 400/3/50 | 20 | 14 | 80 | 236*311*178 | 3,9 | 840 |
| RDM328 - 401 - 00S00 | 400/3/50 | 28 | 20 | 112 | 236*374*200 | 5,6 | 980 |
Three-phase fan speed controllers
(control by signal 4-20mA, 0-10V, NTC from sensor and controller)
The RGM300 series are designed for manual or automatic control of asynchronous (AC), three-phase motors, axial and centrifugal fans, with control system devices. Has 2 inputs and 12 different control modes are available.
- regulation of rotation speed by changing voltage from 0% to 100%
- external control signal 4-20mA, 0-10V, NTC
- designed for three-phase fans,
- protection class IP55
- regulator power supply 400V/3/50Hz
| Model | Supply voltage (V/f/Hz) |
Operating current (A) |
Max. power (kVA) |
Power consumption (W) |
Dimensions (mm) |
Weight (kg) |
Price EUR) |
|---|---|---|---|---|---|---|---|
| RGM340 - 420 - UPPS1 | 400/3/50 | 40 | 27 | 160 | 315*415*178 | 11 | 2 100 |
| RGM360 - 420 - | 400/3/50 | 60 | 41 | 240 | 215*460*228 | 17 | 2 520 |
| RGM390 - 420 - | 400/3/50 | 90 | 61 | 360 | 408*590*290 | 25 | on request |
