High starting torque, at 150% or more
Equipped with Fuji's original simplified torque-vector control system and the automatic torque boost function, the inverter provides consistent powerful operation (when automatic torque boost is ON, slip compensation control is ON, and when running at 5Hz or more).
*The above graph shows an example of torque characteristics obtained when FRENIC-Mini is combined one-to-one with Fuji,s standard 3-phase motor (8-type series: 4 poles).
Braking resistor connectable to the inverter
Owing to a built-in braking transistor (1/2HP or larger), an optional braking resistor can be connected to increase the regenerative braking capacity for conveyance and transportation machinery that require large braking power. For inverters of 2HP or larger, it is possible to select the model that incorporates a braking resistor.
The remarkably improved current limiting function (stall prevention) allows trip-free operation even for an impact load.
Stable operation even for a step load
The slip compensation function permits stable operation even when the motor load fluctuates (step load).
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 less (at 1Hz) compared with that of conventional inverters.
Automatic energy-saving provided as a standard function
By controlling the motor loss to a minimum, FRENIC-Mini further saves electric power when applied to fans or pumps.
*Energy saving rate varies with the motor characteristics*
PID control function
Permits motor operation while controlling temperature, pressure, or flow rate without using an external device such as temperature controller.
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.
Compatible with a wide range of frequency settings
The optimum frequency setting method can be selected to match your machine or equipment. Setting can be done by keypad , analog input (4 to 20mA, 0 to +10V, 0 to 5V, 1 to 5V), multistep speed settings (8 steps) etc.
A transistor output is provided.
This enables an overload early warning, lifetime forecast or other information signals to be output during operation.
The output frequency can be set to a maximum of 400Hz.
The inverter can be used for equipment that requires a high motor speed such as centrifugal separator. In this case, check the operation in combination with the motor.
Two points can be set for a non-linear V/f pattern.
One point for the non-linear V/f pattern, which can be set as desired, has been added (making a total of 2 points), and so the V/f pattern can be adjusted to match the application.