Frequency converters
Frequency converters are an important component of any automated electric drive and belong to the type of energy-saving equipment.
Frequency converters (IF) convert energies: electrical to mechanical and are designed to control and optimize the parameters of technological processes.
The main parameters being monitored are productivity, accuracy and quality of processing, and energy consumption.
Also, when automating and controlling technological processes, the question arises of adjusting the values of parameters that describe the kinematics of the movement of electric drives - speed, moment of force, coordinates of movement of working bodies, etc.
Therefore, the main task of the frequency converter is to ensure smooth adjustment of the above parameters, as well as protection of electric motors from overloads, increase their service life and operation, and reduce energy consumption.
The operating scheme of the IF includes:
| The power part | Made on thyristors or transistors |
| The control part | Made on digital microprocessors and providing control of the power unit and a large number of control, diagnostic and protection tasks |
Depending on the control method, all frequency converters are divided into:
- frequency converters with scalar control
- frequency converters with vector control – and with the ability to control the speed of the electric motor, the supplied voltage.
Frequency control of asynchronous electric motors allows you to change the direction of rotation, smooth start of the electric motor and braking.
Also, with the help of the State of emergency, it is possible to monitor changes in the output power and the value of the rotation frequency, torques, amperage and mains voltage. Information for controlling the electric motor is shown remotely on a special display.
The frequency bands are controlled remotely from the control panel, as well as using external discrete or analog signals.
Frequency converters are used in technological processes in the following cases:
- process control (for example: electric drives of lifting machines, excavators, rolling mills, etc. machines);
- precise observance of technological parameters (for example: in electric drives of papermaking machines, aggregates in textile, etc. industries.);
- adjustment of technological parameters (for example: in electric drives of feeders and dispensers, etc.);
- control of material processing modes (for example: in CNC machines);
- optimization of processes based on energy costs (for example: in the drives of pumping units, fans and compressors).
Choose a frequency converter: price-quality?
All presented frequency converters on our website or from our price list will ensure reliable operation of the asynchronous electric motor, its smooth start, braking; optimize operating modes and increase efficiency.
Our catalog contains devices for a wide range of processes that have the ability to implement complex multi-level algorithms.
In case of selection of a frequency converter, the price of which should be within certain limits or if additional consultations are needed, call our office at +7 (495) 268 01 30 or write to the mail info@saluteh.ru .