Inverters are power equipment used to regulate the speed of asynchronous motors. Speed variation is achieved by varying the motor drive voltage and the frequency maintaining the V/f ratio constant over the entire speed range of the motor. The application range of inverters is very wide starting from simple speed regulation of conveyor belts to speed regulation of fans, flow control of pumps, lifting systems control and synchronization of motors. Inverters are available for powers from a few kW up to thousands of kW and integrate network and diagnostic capabilities to better control performance and increase productivity; the inverter is sized according to the motor power and application. Tekna Automazione e Controllo applies and integrates inverters from the world’s leading manufacturers within Automation systems.

The SINAMICS G120 frequency converter is ideal for precise and economical speed and torque control of three-phase asynchronous motors. The modular structure of the components and the wide power range from 0.55 to 250 kW, ensures the possibility of assembling the perfect converter for any application or industrial sector.
SINAMICS G120 is in fact a modular converter system essentially made up of two functional units: the Control Unit (CU), which commands and monitors the inverter, and the Power Module (PM), which must be chosen according to the power of the motor to be driven.

Inverter SIEMENS Sinamics G120

It is the compact inverter, suitable for use in numerous variable speed drive applications and in particular for driving pumps, fans and conveyor belts.
It stands out in particular for its efficiency and easy handling and covering a power range from 0.37kW up to 132kW.

Inverter SIEMENS G120 C

It is the frequency converter for speed control of simple motors and is characterized by short commissioning times, easy handling and energy-saving functions. The converter with its nine sizes covers the power range from 0.12 kW to 30 kW, both for single-phase and three-phase supply voltage.

Inverter SIEMENS Simatics V20

The system which includes the SINAMICS V90 servo drive and the SIMOTICS 1FL6 servo motor allows applications from 0.05 to 7.0 kW to be covered. This system allows you to implement simple motion operations and achieve excellent dynamic performance while optimizing costs.

Inverter SIEMENS Sinamics V90

The SINAMICS S210 system includes a servo drive called S210 which can drive a wide range of SIMOTICS servomotors, allowing to achieve very high level performance, with a power of up to 7 kW. The integration in the TIA Portal, the rapid commissioning, the numerous integrated safety functions, make it the ideal tool for any motion application.

Inverter SIEMENS Sinamics S210

PowerFlex 755T drives are designed to provide harmonic attenuation, regeneration, and common bus solutions that help reduce energy costs, increase flexibility, and increase productivity. They are the first drives to offer TotalFORCE technology, a patented field-oriented control technology that provides precise and adaptive control of speed, torque and position of electric motors. TotalForce technology allows drives to react quickly to operating conditions and automatically take adjustments to improve performance and optimize the system. The PowerFlex 755T family also provides predictive diagnostics and maintenance capabilities to monitor drive and motor operating conditions and aid in system health analysis.

Inverter ALLEN BRADLEY PowerFlex 755T

Converters with power ratings from 0.37kW to 1,400kW provide ease of use, application flexibility and high performance. They enable sensorless vector control and permanent magnet motor control. They include various hardware and control options, as well as optional built-in safety features. These drives are well suited to a wide variety of motion control applications, including pumps, fans, and conveyors.

Inverter ALLEN BRADLEY PowerFlex 755

Allen Bradley PowerFlex 525s with power ratings from 0.4kW to 22kW feature an innovative, modular design for quick and easy installation and configuration. These next-generation compact drives offer built-in EtherNet/IP communications, programming via USB, and standard safety features. They are ideal for applications such as conveyors, fans, pumps and mixers.

Inverter ALLEN BRADLEY PowerFlex 525

Suitable for driving motors in powers from 0.25kW to 132kW, it is equipped with the latest energy saving features: with overload up to 180% for high torque applications, integrated PLC, simplified installation and commissioning. Possibility of being integrated into automation structures with the main field networks.

Inverter CONTROL TECHNIQUES Commander C200

Unidrive SPs are standard drives which lend themselves to easy installation and commissioning. They can be used in a wide variety of applications.


They allow the control and speed regulation of motors in the power range from 0.25 kW to 110kW, guaranteeing maximum performance with sensorless and open loop vector control of the asynchronous motor.
• Optimization of production capacity thanks to the integrated Machine Safety functionality
• NV Media Card for parameter copying and data archiving
• 24V d.c. back-up power supply. (optional)
• Safe torque off (STO) dual channel input
• Possibility of integration and communication with the most common field buses.

Inverter CONTROL TECHNIQUES Unidrive M100-200-300-400

The Unidrive M HIGH POWER MODULAR AC DRIVE, modular inverters, which can be connected in parallel to be able to regulate the speed of asynchronous motors up to powers of 2.8MW. Unidrive M modules are available in three parallelable 110kW, 160kw and 250kW frames, ensuring 150% heavy duty overload and high torque at low speeds.

Inverter CONTROL TECHNIQUES Unidrive M600/700

High power inverters developed by Ansaldo-ASI and specifically designed to satisfy applications in the steel, paper, cement, naval and lifting sectors.


Designed to provide 200% starting torque at 0.5Hz and capable of working with open loop torque control in the power ranges from 0.1kW to 15kW
It is both an inverter and a positioner and can be programmed to perform simple automation sequences
Optional fieldbus communications: EtherCAT, EtherNet/IP Modbus, DeviceNet, Profibus, CompoNet and MECHATROLINK-II.

Inverter OMRON MX2

Inverter con potenze nominali fino a 132kW adatto per applicazioni gravose con coppia completa a 0 Hz in anello chiuso. Controllo vettoriale ad anello chiuso e sensor-less. Applicabile in automazioni con rigenerazione in rete
Funzione di sicurezza integrata, SIL3/PLe ed opzioni
di comunicazione: EtherCAT, Profibus, Profinet, Modbus TCP

Inverter OMRON RX2

Compact inverter combining simple operation with high efficiency control for all motor types in the power range 0.1kW- 22kW for motors in 220Vac class and 400Vac class. Built-in EMC filter and SIL3/PLe safety.

Inverter OMRON Q2V