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Home » Frequency inverters » Fuji Electric » Fuji Electric frequency inverters FRENIC-AQUA (FRN AQ1) series for pumps and water supply

Fuji Electric FRENIC-AQUA (FRN AQ1) frequency inverter series for pumps and water supply

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Fuji Electric frequency inverters FRENIC-AQUA (FRN AQ1) series for pumps and water
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FRENIC-AQUA is the first slim type inverter dedicated for a variety of applications of water supply and wastewater treatment system from Fuji Electric. This new series follows European trends keeping high Japanese reliability. Specific functions to prevent damage on the systems and new energy saving functions are installed as standard, positioning FRENIC-AQUA as a high performance inverter on the pumping application market.
  • Wide capacity range from 0.75 kW to 710 kW
  • IP21 & IP55 with same dimension
  • DCR Reactor and EMC filter built-in up 90 kW. Built-in EMC filter for all capacities
  • Overload capability 110%
  • Torque Vector control
  • Modbus RTU, BACnet MS/TP, Metasys N2; integrated as standard
  • Large LCD display, 19 languages + user customizable language
  • Specific macros for common fan and compressor applications
  • Customizable Logic (mini PLC), 14 steps, possibility to manage digital and also analog signals
  • Real Time Clock (RTC)
  • 4 PID sets
  • Unit conversion function (kPa, bar, l/min, etc.)
  • Fire mode (forced operation)
  • Catch spinning motor
  • Password function
  • New energy saving functions (sleep mode)
  • Multipump control (up to 9 pumps with one inverter)
  • Anti jam function
  • Pipe fill mode
  • Extension cable for remote operation (CB-…S)
  • Battery (OPK-BP)

Fuji Electric Frenic Aqua series with built-in EMC filter and built-in choke PTA (degree of protection IP21)
Model Voltage,
V
Capacity,
kW
Current,
A
V/f
mode
Enclosure
IPXX
Output frequency,
Hz
Overload capacity,
% per 1 min
Dimensions
(W x H x D), mm
Weight,
kg
Price
FRN0.75AQ1M-4E 380~480 (3ph) 0,75 2.5 + IP 21 25-120 110 150x465x262 10 303,00 €
FRN1.5AQ1M-4E 380~480 (3ph) 1,5 4.1 + IP 21 25-120 110 150x465x262 10 356,00 €
FRN2.2AQ1M-4E 380~480 (3ph) 2,2 5.5 + IP 21 25-120 110 150x465x262 10 379,00 €
FRN4.0AQ1M-4E 380~480 (3ph) 4 9 + IP 21 25-120 110 150x465x262 10 488,00 €
FRN5.5AQ1M-4E 380~480 (3ph) 5,5 13.5 + IP 21 25-120 110 150x465x262 10 548,00 €
FRN7.5AQ1M-4E 380~480 (3ph) 7,5 18.5 + IP 21 25-120 110 150x465x262 10 679,00 €
FRN11AQ1M-4E 380~480 (3ph) 11 24.5 + IP 21 25-120 110 203x585x262 18 812,00 €
FRN15AQ1M-4E 380~480 (3ph) 15 32 + IP 21 25-120 110 203x585x262 18 1 004,00 €
FRN18.5AQ1M-4E 380~480 (3ph) 18,5 39 + IP 21 25-120 110 203x585x262 18 1 125,00 €
FRN22AQ1M-4E 380~480 (3ph) 22 45 + IP 21 25-120 110 203x585x262 18 1 343,00 €
FRN30AQ1M-4E 380~480 (3ph) 30 60 + IP 21 25-120 110 203x645x262 23 1 537,00 €
FRN37AQ1M-4E 380~480 (3ph) 37 75 + IP 21 25-120 110 203x645x262 23 1 917,00 €
FRN45AQ1M-4E 380~480 (3ph) 45 91 + IP21 25-120 110 - - 2 335,00 €
FRN55AQ1M-4E 380~480 (3ph) 55 112 + IP21 25-120 110 - - 2 792,00 €
FRN75AQ1M-4E 380~480 (3ph) 75 150 + IP21 25-120 110 - - 3 295,00 €
FRN90AQ1M-4E 380-480 (3ph) 90 176 + IP21 25-120 110 - - 3 762,00 €

Fuji Electric Frenic Aqua series with built-in EMC filter and built-in choke PTA (degree of protection IP55)
Model Voltage,
V
Capacity,
kW
Current,
A
V/f
mode
Enclosure
IPXX
Output frequency,
Hz
Overload capacity,
% per 1 min
Dimensions
(W x H x D), mm
Weight,
kg
Price
FRN0.75AQ1L-4E 380~480 (3ph) 0,75 2.5 + IP 55 25-120 110 150x465x262 10 357,00 €
FRN1.5AQ1L-4E 380~480 (3ph) 1,5 4.1 + IP 55 25-120 110 150x465x262 10 421,00 €
FRN2.2AQ1L-4E 380~480 (3ph) 2,2 5.5 + IP 55 25-120 110 150x465x262 10 462,00 €
FRN4.0AQ1L-4E 380~480 (3ph) 4 9 + IP 55 25-120 110 150x465x262 10 553,00 €
FRN5.5AQ1L-4E 380~480 (3ph) 5,5 13.5 + IP 55 25-120 110 150x465x262 10 611,00 €
FRN7.5AQ1L-4E 380~480 (3ph) 7,5 18.5 + IP 55 25-120 110 150x465x262 10 737,00 €
FRN11AQ1L-4E 380~480 (3ph) 11 24.5 + IP 55 25-120 110 203x585x262 18 873,00 €
FRN15AQ1L-4E 380~480 (3ph) 15 32 + IP 20 25-120 110 203x585x262 18 1 045,00 €
FRN18.5AQ1L-4E 380~480 (3ph) 18,5 39 + IP 55 25-120 110 203x585x262 18 1 233,00 €
FRN22AQ1L-4E 380~480 (3ph) 22 45 + IP 55 25-120 110 203x585x262 18 1 450,00 €
FRN30AQ1L-4E 380~480 (3ph) 30 60 + IP 55 25-120 110 203x645x262 23 1 711,00 €
FRN37AQ1L-4E 380~480 (3ph) 37 75 + IP 55 25-120 110 203x645x262 23 2 076,00 €
FRN45AQ1L-4E 380-480 (3ph) 45 91 + IP55 25-120 110 - - 2 493,00 €
FRN55AQ1L-4E 380-480 (3ph) 55 112 + IP55 25-120 110 - - 2 943,00 €
FRN75AQ1L-4E 380-480 (3ph) 75 150 + IP55 25-120 110 - - 3 465,00 €
FRN37AQ1L-4E 380-480 (3ph) 90 176 + IP55 25-120 110 - - 3 942,00 €

Fuji Electric Frenic Aqua series with built-in EMC filter and built-in choke PTA (degree of protection IP00)
Model Voltage,
V
Capacity,
kW
Current,
A
V/f
mode
Enclosure
IPXX
Output frequency,
Hz
Overload capacity,
% per 1 min
Dimensions
(W x H x D), mm
Weight,
kg
Price
FRN110AQ1M-4E 380-480 (3ph) 110 210 + IP00 25-120 110 - - 4 470,00 €
FRN132AQ1S-4E 380-480 (3ph) 132 253 + IP00 25-120 110 - - 5 650,00 €
FRN160AQ1M-4E 380-480 (3ph) 160 304 + IP00 25-120 110 - - 6 781,00 €
FRN200AQ1S-4E 380-480 (3ph) 200 377 + IP00 25-120 110 - - 8 510,00 €
FRN220AQ1S-4E 380-480 (3ph) 220 415 + IP00 25-120 110 - - 9 677,00 €
FRN280AQ1S-4E 380-480 (3ph) 280 520 + IP00 25-120 110 - - 11 756,00 €
FRN315AQ1S-4E 380-480 (3ph) 315 585 + IP00 25-120 110 - - 13 542,00 €
FRN355AQ1S-4E 380-480 (3ph) 355 650 + IP00 25-120 110 - - 15 255,00 €
FRN400AQ1S-4E 380-480 (3ph) 400 740 + IP00 25-120 110 - - 17 623,00 €
FRN500AQ1S-4E 380-480 (3ph) 500 960 + IP00 25-120 110 - - 19 785,00 €
FRN630AQ1S-4E 380-480 (3ph) 630 1170 + IP00 25-120 110 - - 24 031,00 €
FRN710AQ1S-4E 380-480 (3ph) 710 1370 + IP00 25-120 110 - - 26 509,00 €
Technical Information and Features

Wide variation of model capacity in FRENIC-Aqua frequency inverter series

Model can be selected from two model types: 
- Standard type (EMC filter built-in type) 0.75~710kW (Protective structure IP21 or IP55 can be selected between 0.75 and 90kW)
- DCR built-in + EMC filter built-in type 0.75~90kW (Protective structure IP21 or IP55 can be selected between 0.75 and 90kW)
Fuji Electric Frenic Aqua series inverter capacity

Fuji inverter Frenic-Aqua series has a control terminal block

The detachable control terminal block is adopted. This allows the unit to be replaced easily without disconnecting cables.

Fuji frequency inverter Frenic-Aqua series has a capacitor board

Outputs the life prediction signal determining capacitor capacity drop and cumulative running hours. This allows the user to grasp replacement period.

Fuji drive Frenic-Agua series has a cooling fan

Easy replacement just by simply removing and attaching the part. Life prolongation is possible by controlling ON and OFF

Fuji Electric vfd Frenic-Aqua series has a EMC-filter

Drastically reduces noise. Provided to units of all capacities. Conforming to IEC61800-3.

Fuji Electric drive Frenic-Aqua series has a DCR

Drastically reduces harmonic noise. Conforming to IEC/EN61000-3-2 and IEC/EN61000-3-12. Provided as standard (to models up to 90kW), and can be attached externally as an option (to models from 110kW to 710kW).

Fuji FRENIC-Aqua inverter with optimum control by energy-saving functions

- Linearization function
- Temperature difference constant control and pressure difference constant control
- Energy saving functions including wet-bulb temperature presumption control
- Automatic energy-saving operation

Dedicated pump control function provided as standard 

- 4PID control
- Cascade control
- Mutual operation
- Control of maximum starts per hour
- Dry pump detection
- Deceleration time for check valve protection
- Slow flowrate function
- End of curve detection
- Boost function
- Acceleration and deceleration at initial stage 

Slim body

The first slim body design among the Fuji Electric inverters. The size is the same between IP21 and IP55 (the first in the industry).

Fuji Electric FRENIC-Aqua drives are user-friendly and with useful functions

- Fire Mode (forced operation)
- Customized logic
- Pick-up operation function
- Anti-jam
- Torque vector control
- Password function
- Real time clock
- User friendly, useful key pad

Stand alone 

The inverter can be installed independently; no control panel is required.

Wide usage of Fuji Electric FRENIC-Aqua inverter for Water Treatment

Water purification plant and wastewater, clean water and sewage treatment plants 

Fuji drives Frenic-Aqua series
Irrigation system
Irrigation system
Seawater desalination
Seawater desalination

Fuji Electric drives FRENIC-Aqua series pump control features

Fuji Electric drives FRENIC-Aqua series pump control

Fuji Electric drives FRENIC-Aqua series blower control features

Fuji Electric drives FRENIC-Aqua series blower control

FRENIC-Aqua series is equipped with many functions that control the pumps and blowers used in water treatment facility optimally.

Fluid-pressure device

- Oil pumping system
- Injection machine
- Hydraulic press machine
- Extruders
- Cold and Air Compressors

User friendly, easy to see keypad

The regulator is indicated by enlarging the LCD.
The Fuji Electric frequency inverter Frenic-Aqua series regulator is indicated by enlarging the LCD

Fuji Electric vfd Frenic-Aqua series is supported by multi-language: 19 languages + user customized language (Planned)

Fuji Electric vfd FRENIC-Aqua series is supported by multi-language: 19 languages + user customized language

Fuji Electric's real time clock (RTC) is provided as standard.

- Alarm information with date and time: Alarm information for last ten times is stored and displayed with date and time
- Timer function: 1)  Possible to set the maximum four timers for a week. 2)  Possible to set flag holidays (20 days a year).
- Unit conversion function between PV and SV values: Unit conversion allows you to easily set data

Fuji Electric Frenic-Aqua's real time clock (RTC) is provided as standard

-Cascade control
The cascade control is the function that controls the multiple pumps by one inverter. The pumps are controlled with combination of inverter drive and commercial drive. This can be applied in a large-scale water treatment plant. In cascade control, the signals of flow rate and pressure sensors are controlled by the PID regulator that is built in the inverter. Each pump is driven either by the inverter or commercially according to the switching signal from the inverter. The pumps are controlled only by the inverter when the discharge volume is small, and adding to the inverter drive, they are controlled using commercial drive by adding them one by one as the discharge volume gets larger in order to ensure the required discharge volume in total. There are two following methods in control: inverter drive motor fixed method and inverter drive motor fixed method.

Fuji Electric vfd Frenic-Aqua series has an Optimal Function for Usage in Water Treatment

-  Inverter drive motor fixed method (FIXED)
The system is configured by combining the motor driven by the inverter (M0), motors that are commercially driven (M1 to M8) and auxiliary motor (MA). TThe motor driven by the inverter is always fixed as motor M0. Motors commercially driven are added one by one in control when the required discharge flow rate cannot be achieved with the motor M0 only.

Fuji Frenic-Aqua inverter drive motor fixed method

- Mutual operation
The system can be configured without using a controller by connecting the inverters via communications. In this system, if a failure occurs to the master inverter, the next inverter is driven as the master inverter. Moreover, wiring can be saved with use of communications services, which eliminates the need of additional options by using the Modbus RTU communications.

Customized logic

The customized logic interface function is provided to the inverter body. This enables forming of logic circuit and arithmetic circuit to the digital and analog input and output signals, allowing simple relay sequence to be built while processing the signals freely.
Fuji Electric Frenic-Aqua customized logic interface function

Boost function

Frequency can be output forcibly at a fixed rate in preference to PID control. By setting the operation frequency, operation time, and acceleration time at starting, optimal operation for starting the pump can be achieved.
Pressurizing operation can be applied for a certain period of time at the time of start.
Frenic-Aqua drive boost funktion

Password

Function codes can be read/write, displayed or hidden by setting the two passwords. This prevents erroneous operation or overwriting of function codes. In addition, if a wrong password was input exceeding the specified number of times, the inverter is restricted from operating as the user is regarded as improper.

Dry pump detection

Pump dry condition can be detected from PID deviation value by setting the output frequency, output current, and flow rate sensor value. Water leakage and pressure drop due to impeller damage can be detected as well.

Slow flowrate function (pressurized operation available before slow flowrate)

The inverter can be stopped when the discharge rate becomes low due to increase of pump discharge pressure. Facility having a bladder tank can make the stoppage period longer by applying pressure immediately before stoppage, which realizes energy-saving operation.
Fuji Electric vfd Frenic-Aqua series slow flowrate function (pressurized operation available before slow flowrate)

Initial acceleration/deceleration time

When a pump such as a deep well pump is operated at low speed over a long period of time, the pump may be damaged since the load current is large in the low-speed range. It is possible to provide acceleration/deceleration time specific to the low-speed range in order to avoid prolonged operation.
Fuji Electric frequency inverter Frenic-Aqua series initial acceleration/deceleration time

Anti-jam function

The motor is rotated in reverse when it is determined that any abnormality, such as being engaged or trapped, is occurred. If sand or dust were caught in the impeller with a submerged pump and overcurrent protection function is activated, the motor is rotated in reverse at restart so that the sand and dust are ejected from the impeller. Then, the motor resumes rotation in forward, allowing water to be supplied in a normal manner.

Deceleration time for check valve protection

If a valve is closed quickly after pump stoppage, there is a risk of damaging the check valve (piping, pump, valves, etc.) due to water hammer phenomenon. To protect the check valve from this, the pump speed is gradually slowed down when the check valve closes.

Other Fuji vfd Frenic-Aqua series featured functions

- 4PID control
- Control of maximum starts per hour
- Abnormal pressure rise prevention
- End of curve detection
- Pick-up operation