Frequency inverters for pumps: prices, specifications and reviews

Frequency converters for pumps are required to adjust the power of the motors. As a result, the pressure in the system is maintained at the proper level. Qualitative converters are able to save a large amount of electricity. And this should be taken into account. In this case, the pumps can be used in a variety of ways. The most common are the systems for supplying water to the house. Also converters are necessary for circulating pumps. In addition, they can be installed in fountains and aquariums.

Features of converters

A distinctive feature of all converters for pumps is their simplicity. At the same time they do not need any maintenance and work absolutely automatically. In addition, there is an opportunity to control them through a personal computer. You can also set individual schedules for the device. At the same time, their efficiency is about 90%. Another thing to be aware of is that an expansion tank is not needed for pumps with converters. Thus, the pressure is always maintained at the optimum level.

What are the characteristics of the converters?

Important characteristics of the converters are input voltage, as well as power. In addition, the manufacturer always indicates the type of control. Today, scalar and vector control of the device are distinguished. The parameter of the rated current depends on the power of the model. The indicator of the output frequency can also be highlighted. It is usually indicated in the range from 0.1 to 600 Hz. The overload capability is calculated in percent. The degree of protection of the converter housing is indicated by a special marking. The operating temperature of the device by the manufacturer is also mandatory. Among other things, it is necessary to distinguish the acceleration time parameter, as well as the deceleration.

Reviews about converters "Danfoss 2800"

The frequency converter Danfoss is quite simple in maintenance, and also operation. In this case, a dense installation of equipment is allowed. This is largely due to a reliable cooling system. To control the pressure level in the device, special sensors are provided. We should also mention a qualitative PID controller. The input voltage of the converter is 220 V, and the power is 0.2 kW.

The output frequency ranges from 0.1 to 600 Hz. The frequency converter is controlled by a vector method. The total acceleration time takes an average of 30 seconds. The degree of protection of the housing is class "IP20". Dimensions of this unit are the following: height - 174 mm, width - 73 mm, and depth - 135 mm. Costs the frequency converter Danfoss 2800 about 11 thousand rubles.

Model INVT GD10: specifications and reviews

Many buyers appreciated these frequency converters for pumps for a large number of discrete inputs. Among other things, the presence of a relay output should be highlighted. This converter can be used at temperatures from -10 to +50 degrees. The manufacturer provides a built-in PID controller.

Also, many on the positive side appreciated the multifunction keyboard. With its help, you can quickly access absolutely all parameters. The input voltage of this device is 220 V. The nominal engine power is 0.2 kW, and the frequency varies from 0 to 400 Hz. The rated current parameter is 1.6 A. The degree of protection of the housing is class "IP20". The overload capacity of this converter is 150%. This model will cost the buyer 12 thousand rubles.

Transformer "Vesper E3-8100"

Frequency converter "Vesper E3-8100" is able to boast of its modest size. Among other things, he has special communication adapters that are designed for the network. Also note the convenient optional remote. It is equipped with modern software. The printed circuit boards of the protective device are varnished.

Dense installation of devices by the manufacturer is allowed. The control type in this converter is vector. The nominal power of the device is 0.75 kW, and the output voltage is 22 V. The output frequency of the device fluctuates around 200 Hz. The total acceleration time is 30 seconds, and the deceleration time is 50 seconds. The degree of protection of the case is set at "IP20". The unit can be operated at a temperature of -10 to +50 degrees. Costs the frequency converter "Vesper E3-8100" 13 thousand rubles.

Parameters of the INVT GD15 converter

Voltage regulation in this converter is automatic. In total, there are five digital inputs. The PID controller is installed in the built-in type. The manufacturer also provides support for all standard programs. The keyboard is multifunctional and provides quick access to the system. Separately, it is worth mentioning the EMC filter, which is built into the case. This single-phase control converter has a scalar type.

The input voltage of the device ranges from 205 to 235 V, and the engine power is 0.4 kW. The output frequency is at 300 Hz. In turn, the indicator of the rated current is 2.5 A. Within 10 seconds. The overload capacity of the converter is 180%. Dimensions this model has the following: height - 140 mm, width - 80 mm, and depth - 134 mm. This device will cost the buyer 14 thousand rubles.

Feedback about model INVT GD20

These frequency converters for pumps are in great demand and have a good protection system. Analog inputs and outputs are provided by the manufacturer. Also note the built-in port C485 with support for many standard programs. The brake module is installed in the built-in type. The EMC filter is of class C2. The transducer protection system copes quite well with various kinds of interference.

If necessary, the remote control in the device can be easily disconnected. The dimensions of the converter are quite compact and at the same time its mass is only 1.5 kg. The rated power of the unit is at the level of 0.7 kW, and the frequency fluctuates around 200 Hz. The rated current parameter is 4.2 A. The device can be used at temperatures from -10 to +40 degrees. Separately, it is worth mentioning a good overload capacity. The control type, in turn, is of the scalar type. It is a given frequency converter (market price) of about 12 thousand rubles.

The buyers' opinion about the device "Hundai 700E"

From other devices, this frequency converter Hyundai is characterized by a high-quality PID controller. The brake module is installed in the built-in type. The control panel is quite comfortable and equipped with a potentiometer for monitoring the speed. This model is suitable not only for pumps, but also for fans. Among other things, it is often installed on various conveyors. EMC filter is built-in type.

Drives for this model are suitable from different manufacturers, and it is very convenient. Installed the device is fairly simple and convenient to maintain. For commissioning, you can use "Flashdrip". The type of control in this model is classified as scalar. The input voltage of the device ranges from 200 to 240 V. The working power of a single-phase motor is 0.37 kW. Separately, mention should be made of a wide range of output frequencies. The nominal current parameter is at the level of 2.4 A, and the overload capacity is 150%. The degree of protection in the converter is set to "IP20". The height of this unit is 202 mm, width - 75 mm, and depth - 142 mm, with a mass of 1.1 kg. It is worth a frequency converter Hyundai 700E in a specialized store 12 thousand rubles.

Characteristics of the converter "Schnider AT12"

Connecting the frequency converter "Schnider AT12" to the circulation pumps is quite simple. This model from other devices is characterized by its compactness and increased performance. Among other things, it should be noted multifunctionality of the device. The manufacturers paid extra attention to the security system.

The parameter of overload capacity is 150%. The engine is installed single-phase, with a power of 0.18 kW. In this case, the nominal current parameter is 1.4 A. The total acceleration time takes 20 seconds, and the deceleration time is 55 seconds. The output frequency is on the average at 250 Hz. At the maximum, it can rise to 400 Hz. In turn, the input voltage of the converter is 220 V. It is worth this model in the store 14 thousand rubles.

Model "Lovar H3"

Frequency converters for pumps "Lovara H3" have acceptable characteristics, but they have one drawback. It is connected with the formation of condensate. In many respects it depends on unprotected contacts. The possibility of synchronous operation in this model is provided. Also it should be noted multifunctionality of the device. Start and stop the engine can be done remotely. Receiving of current signals is carried out from 4 to 20 mA.

The ambient temperature should be between 5 and 40 degrees. Depending on the pressure in the system, the engine speed is monitored automatically. The input voltage is at 400 V. The rated power of the three-phase motor is 3 kW. This model will cost the buyer 15 thousand rubles.

Converter FC-051

Frequency converter FC-051 is actively used for pumps and ventilation systems. This model is distinguished by a quality control unit. It should be noted and a good interface device. You can connect this converter to a personal computer. The mechanical seal is locked in automatic mode.

If necessary, the remote can be easily disconnected. At the same time, the device can be started from any distance remotely. At increased pressure, the protective system immediately triggers and locks the engine. It also protects the system from various voltage surges. Indication in this model is provided by LED. At the same time, only the most necessary indicators are available on the control panel. The noise level of the electric motor is within the normal range. In many respects this was achieved due to the qualitative variator, which produces a stable frequency at the level of 8 kHz.

To cool the entire converter there is a powerful fan. It is installed at the base of the frame and securely fastened. In this case, the device can be used for a long time and do not overheat. In addition, it should be noted that the tracking system constantly monitors external pressure. For centrifugal pumps, this model can be installed. The control sensor can withstand a maximum of 20 mA. The given frequency converter costs (the market price) about 16 thousand rbl.