Energy Saving for the environment and our children's future

The first slim-type inverter specialized in energy-saving from Fuji Electric. Achieves a great effect on power-saving of pumps and blowers!
Contributes drastically to cost reduction by cutting power consumption!

The water business market including water purification plants and wastewater plants has continued to grow in recent years. Using a large volume of water, cost reduction is required and it largely depends on how efficiently water can be managed. It is of course achieved by reducing the amount of water to be used, however, the reduction in power consumption in water transfer and supply also allows significant cost reduction. And the key to that is the dedicated inverter which controls pumps and motors. The FRENIC-AQUA series, a Fuji’s new product, helps energy-saving of pumps, eliminating ineffectual operations by adjusting the amount of water properly to produce a significant effect both on electricity conservation and on cost reduction.

Wide variation in model capacity

Model can be selected from two model types.

• Standard type (EMC filter built-in type)

0.75 to 710kW (Protective structure IP21 or IP55 can be selected between 0.75 and 90kW.)

• DCR built-in + EMC filter built-in type

0.75 to 90kW (Protective structure IP21 or IP55 can be selected between 0.75 and 90kW.)

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).

User-friendly, 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

Wide Usage for Water Treatment

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

Irrigation system

Seawater desalination

Fuji Electric offers high-reliable inverters based on broad ideas focusing on future and with pinpoint
technical support while meeting the complicated needs regarding water treatment that requires stable
water supply and effective use of resources.

FRENIC-AQUA features dedicated functions as standard that are required in water treatment plants, such as 4PID control, cascade control, dry pump detection, slow flowrate function, and pick-up operation, as well as many options. These functions contribute strongly to protection of system and reduction of cost.

The pumps and blowers used in water purification, water supply and wastewater treatment plants need to be controlled with accurate pressure (discharge pressure). FRENIC-AQUA realizes optimal process control with high-integrity using the built-in PID controller.

The cascade control can control up to eight units + one unit (auxiliary motor), allowing for application to the large-scale system. In addition, since the operation time of each pump and blower is equalized in cascade control, the system life can be prolonged.

Pump

Blower

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