1-2
• Reduced motor instability at low speed
Fuji's unique control method improves voltage control performance and reduces motor instability at low
speed to about a half or under (at 1 Hz) compared with that of conventional inverters.
Refer to Chapter 4, Section 4.7 "Drive Command Controller" for details.
Figure 1.5 Example of Instability Characteristics
Default functions for fans and pumps
• Automatic energy-saving function provided as standard
To minimize the total loss (motor loss plus inverter loss), rather than just the motor loss as in the
predecessor models, FRENIC-Mini saves even more power when used with fans or pumps.
Refer to Chapter 4, Section 4.7 "Drive Command Controller" for details.
* Energy savings vary depending on the motor characteristics.
Figure 1.6 Example of Energy Savings
• PID control function
Permits motor operation while controlling temperature, pressure, or flow rate without using an external
device such as a temperature regulator.
Refer to Chapter 4, Section 4.8 "PID Frequency Command Generator" for details.
• Cooling fan ON/OFF control function
The inverter's cooling fan can be turned off while the fan or pump is stopped for noise reduction and
energy savings.
The ideal functions to serve a multiplicity of needs for small-capacity inverters
• Compatible with a wide range of frequency settings
You can select the optimum frequency setting method that matches your machine or equipment via the
keypad (
/
keys or potentiometer), analog input (4 to 20 mA, 0 to 10 V, 0 to 5 V, 1 to 5 V), multistep
speed settings (0 to 7 steps) or via RS-485 communications. (Refer to Chapter 4, Section 4.2 "Drive
Frequency Command Generator" and Chapter 9, Section 9.2.1 "F codes" for details.)
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