Inverters-FREQROL-D800 Series Toward a decarbonized society
Use of PM motors contributes to energy saving
Contributing to a decarbonized society by driving energy-saving motors
Operation using the IE5 efficiency class motorNEW
The efficiency class IE5 motor drive achieves the energy saving operation. Power consumption can be reduced by approx. 9% compared with our SF-JR (IE1 efficiency class) motor and approx. 2% compared with our SF-PR (IE3 efficiency class) motor. Power consumption and CO2 emission can be reduced compared to using the conventional motors.
Comparison of power consumption (MWh/year) and CO2 emission (t/year)
Supporting step-by-step energy saving solution
High-efficiency motor driveVer.UP
Further energy saving operation is enabled by using IE3 induction motors or PM motors.
Step-by-step replacement of existing devices is enabled. Users can replace inverters first and then motors. There is no need to replace them all at once.
<span>Monitoring the energy-saving effect and CO<sub>2</sub> emission reduction</span>
Energy saving monitor and CO2 emission reduction monitorVer.UP
The effect of the energy saving (instantaneous value, average value, etc.) can be checked via the operation panel, output terminal, or RS-485 communication.
In addition, the amount of output power (CO2 emission) can be measured in the inverter and output as an analog signal, enabling the checking of the cumulative electric power value.*1
- *1: This function cannot be used as a meter to certify electricity billings.
Optimizing the output voltage
Load pattern selection
Optimal output characteristics (V/F characteristics) for application or load characteristics can be selected.
Energy savingFor variable-torque load (Pr.14 = “1”)
The output voltage will change in a square curve against the output frequency equal to or lower than the base frequency.
For constant-torque load(Pr.14 = “0”)
The output voltage will change linearly against the output frequency equal to or lower than the base frequency.
Increased energy saving with inverters
Advanced optimum excitation control NEW
A large starting torque can be provided with the same motor efficiency under Optimum excitation control. Without the need of troublesome adjustment of parameters (acceleration/deceleration time, torque boost, etc.), acceleration is done in a short time. Also, energy saving operation with the utmost improved motor efficiency is performed during constant-speed operation.
When Advanced magnetic flux vector control is selected, Advanced optimum excitation control is available.
Eliminating cooling fans or using PWM fansNEW
Cooling fans have been eliminated for 1.5K or lower inverters. Users need not worry about the life of the fan.
Using PWM fans enables the control of rotations per minute. They are designed to run at high speed only when cooling is required, such as during an overload, resulting in quiet operation and energy saving.
Energy saving with the regenerative option
Power regeneration function (optional)
While the motor rotates to drive the machine during power driving, the machine rotates the motor during regenerative driving, which results in energy saving since the motor serves as a generator which returns the power to the power supply.
By using the multifunction regeneration converter (FR-XC) as a common converter, the power returned from an inverter during regenerative drive can be supplied to another inverter, which in turn saves energy.
Energy saving examples
