DRIVES AND FREQUENCY CONVERTERS
FRENIC4400 / FRENIC4000 common DC link inverters for rolling mills and process lines 400/850 V
Country: Japan · Model: FRENIC4400 / FRENIC4000
Two ranges of common DC link inverters for multi-motor process lines. The FRENIC4000 gives a three-phase voltage of 400 V and up to 300 kVA per unit, and the FRENIC4400 delivers 850 V and up to 2100 kVA per unit. They are installed on rolling mills and coilers, in metallurgy, the paper industry and general industry.
- FRENIC4400VM6/FM6
- three-level IGBT inverter, output 3 ph 850 V, up to 100 Hz; 690–2100 kVA per unit, up to 6300 kVA in multiplex
- FRENIC4000VM6/FM6
- output 3 ph 400 V, up to 200 Hz; up to 300 kVA per unit, up to 12 inverters in a cabinet
- Overload
- 150 % for 1 min
- Vector control VM6
- range 1:1000; accuracy ±0.005 % (4000) / ±0.01 % (4400); torque ±5 %; response 25 Hz (4400)
Technical specifications
| FRENIC4400VM6/FM6 | three-level IGBT inverter, output 3 ph 850 V, up to 100 Hz; 690–2100 kVA per unit, up to 6300 kVA in multiplex |
|---|---|
| FRENIC4000VM6/FM6 | output 3 ph 400 V, up to 200 Hz; up to 300 kVA per unit, up to 12 inverters in a cabinet |
| Overload | 150 % for 1 min |
| Vector control VM6 | range 1:1000; accuracy ±0.005 % (4000) / ±0.01 % (4400); torque ±5 %; response 25 Hz (4400) |
| Scalar control FM6 | range 1:80 |
| Supply | common DC bus; 12-pulse diode rectifier or PWM rectifier (cos φ ≈ 1) |
| Communication | E-SX bus, T-link, SX-bus, PROFIBUS-DP |
| Standards | IEC, JIS (2019 ed.) |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
The common DC bus passes the energy of motoring and generating modes between drives, which raises the energy efficiency of the whole line. The FRENIC4000 is designed for many motors of small and medium power, the output frequency reaches 200 Hz, and the overload is 150 % for 1 min. The vector version VM6 has a speed control range of 1:1000 with an accuracy of ±0.005 % of maximum speed, and the scalar FM6 controls fans, pumps and group drives in the range of 1:80. Up to 12 inverters of up to 300 kVA are installed in one cabinet, and units of different sizes can be combined. Maintenance is done from the front, and the individual unit fans are replaced by fans on the cabinet roof. The series is compatible in dimensions and interfaces with the previous VM5R, so existing cabinets can be modernized in part, and the E-SX bus in a ring configuration works with the XCS-3000 Type E controller. The FRENIC4400 builds its output on three-level PWM on IGBTs, which reduces current harmonics and torque ripple. The output frequency is up to 100 Hz, speed accuracy ±0.01 %, torque accuracy ±5 %, and the speed regulator bandwidth is 25 Hz.
How to choose
The choice starts with the drive voltage and power. For many motors of small and medium power the FRENIC4000 at 400 V is chosen. For rolling mills and coilers the FRENIC4400 at 850 V is needed, with units of 690, 1380 and 2100 kVA, and with multi-winding motors in multiplex 2760, 4140, 4200 and 6300 kVA are obtained. The link is fed from a 12-pulse diode rectifier with reduced harmonics or from a PWM rectifier with a power factor of about 1.
Request a price and lead time
FRENIC4400 / FRENIC4000 common DC link inverters for rolling mills and process lines 400/850 V. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
What are the output voltage and power of the FRENIC4000 and FRENIC4400?
The FRENIC4000 delivers three-phase 400 V, a frequency up to 200 Hz and up to 300 kVA per unit. The FRENIC4400 gives 850 V and up to 2100 kVA per unit, and in multiplex up to 6300 kVA.
How many FRENIC4000 inverters does one cabinet hold?
Up to 12 inverters of up to 300 kVA. Units of different sizes and of the VM6 and FM6 versions can be combined.
What is the speed control accuracy of the VM6 vector version?
The range is 1:1000. Accuracy is ±0.005 % of maximum speed for the FRENIC4000 and ±0.01 % for the FRENIC4400, and torque accuracy is ±5 %.
What should feed the common DC link?
A 12-pulse diode rectifier with reduced harmonics or a PWM rectifier with a power factor of about 1.
Which communication protocols do these inverters support?
Both series have T-link, SX-bus and PROFIBUS-DP. The FRENIC4000 additionally supports the E-SX bus in a ring configuration with the XCS-3000 Type E controller.
Similar products
TMdrive-10e2Low-voltage system VFD 460/575/690 V (including SPR and DP)
Perfect PitchElectric blade pitch systems for wind turbines 0.75–15 MW
Commander / Unidrive M / Powerdrive MD Smart / DigistartLV frequency converters (Commander, Unidrive M, Powerdrive MD Smart) and Digistart D4/D5 soft starters
8400 BaseLine/StateLine/HighLine/TopLine8400 BaseLine/StateLine/HighLine/TopLine cabinet frequency converters 0.25–45 kWREQUEST
Need a price, lead time or replacement?
Send us a request and we will confirm the configuration, lead time and delivery terms. We reply by email.