EN 
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RU Innovative Frequency Converters FR-E
The innovative technologies used in the production of FR-E frequency converters make them practically ideal in the inverter class. Their compact size is also impressive.
Models and Technologies
The FR-E frequency converter series includes models such as FR-E-740 and FR-E-720. They are equipped with a unique vector control algorithm developed by engineers and programmers at Mitsubishi Corporation. This ensures high technical specifications and new technological capabilities for the operation of asynchronous electric drives.
The combination of vector control and slip compensation options allows these frequency inverters to provide no less than 130% of the nominal torque at a frequency of 1 Hertz. This control range is achieved thanks to automatic tuning of the characteristics of the motor used, as well as a peak current limiter that ensures stable and efficient system operation even during overloads.
Areas of Application
These frequency converters have wide applications in many modern industries due to their advanced functional capabilities. They are in demand in:
- Power spinning equipment
- Knitting machines and modern weaving looms
- Conveyors and transporters
- Machining tools
- Pump and ventilation equipment
- Door drives and automatic gates
Technical Specifications
- Output frequencies ranging from 0.2 to 400 Hertz
- Vector control with automatic tuning for the motor
- More than 10 programmable speed settings
- 190% current overload
- Integrated PID controller
- Braking transistor in each device
- Support for Profibus DP network
Advantages
- Each frequency converter in the FR-E series has a full set of protection functions. The main function is automatic restart after power loss. All inverters are equipped with electronic overload protection.
- The RS485 interface, popular for frequency inverters, is included in the factory function set.
- These inverters also support bypassing resonance frequencies and can optimize acceleration and deceleration times.
- Excellent monitoring capabilities:
- Display of acceleration time
- Ability to set two sets of motor parameters
- Control of absence of output currents