Optimum performance for traversing conveyors
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 three-phase motor (8-type series: 4 poles).
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).
Braking resistor connectable to the inverter
Owing to a built-in braking transistor (0.4kW 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 1.5kW or larger, it is possible to select the model that incorporates a braking resistor.
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.
The highly used functions for fans and pumps
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.
The ideal functions to serve a multiplicity of needs for small-capacity inverters
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 panel (keys, potentiometer), analog input (4 to 20mA, 0 to +10V, 0 to 5V, 1 to 5V), multistep speed settings (8 steps) etc.
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.
A transistor output is provided.
This enables an overload early warning, lifetime forecast or other information signals to be output during operation.
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.
Side-by-side mounting is possible.
Multiple inverter units can be mounted side-by-side inside a panel. This features helps to minimize the space used for installation. (Ambient temperature: 40°C or less)
Size interchangeability with Fuji’s FVR-C11S series is provided.
RS485 communications card (option) can be installed internally.
This card can be installed inside the inverter’s body without changing the dimensions. RS-485 communications are available as option.
A model with built-in braking resistor is available on order.
For inverters of 1.5kW or larger, a built-in braking resistor type can be selected. Since installation and wiring of a separate braking resistor is not required, the total mounting space is reduced.
Simple operation and wiring
Frequency setting potentiometer is standard equipment.
The frequency can be adjusted easily by hand.
All types of data can be displayed on the keypad.
The output frequency, set frequency, load shaft speed, output current, output voltage, alarm history, input power etc. can be displayed.
The control circuit terminal block cover and main circuit terminal block cover can be quickly removed.
A menu mode is included in the keypad.
The menu items include the “function menu” for checking or changing function codes, “operation monitor” ,”I/O check”, “maintenance info.” and “alarm info.” See the FRENIC-Mini User’s Manual for details.
The lifetime of the DC bus capacitor can be estimated.
The capacitor’s condition compared with its initial state can be confirmed.
The alarm history for the 4 latest alarms is recorded.
Detailed information from back as far as the 4 latest alarms can also be checked.
A long-life cooling fan is included.
Use of a long-life cooling fan (design life: 7 years with an ambient temperature: 40 C) reduces maintenance work.
It is possible to output lifetime forecast signal to the transistor output.
This signal is output when the capacitors in the DC bus circuit, the electrolytic capacitors on the PCB or the cooling fans are nearing the end of their service life.
Cumulative running time is recorded and displayed.
The inverter records and displays the cumulative running time (lifetime) of the inverter itself, PCB, and cooling fan.
Interface for peripheral devices and comprehensive protective functions
All models are equipped with an inrush current suppression circuit.
An inrush current suppression circuit is provided as standard in all models, so the cost of peripheral devices such as input magnetic contactors can be reduced.
Input/output phase loss protective function
It is possible to detect output phase loss at all times during starting and operation.
A DC reactor (DCR) connection terminal is provided as standard.
A terminal for connection of a DCR, necessary for suppressing harmonics, is provided in all models.
Sink/Source can be switched.
The input/output mode (Sink/Source) of the digital input terminals can be switched by means of an internal jumper switch.
The motor can be protected by a PTC thermistor.
In addition to the protection by an electronic thermal relay, the motor is protected by a PTC thermistor input.
Flexible through optionals
Function code copy function
The optional remote keypad panel includes a built-in copy function, so function codes can be set easily in duplicate units.
Inverter support loader software is available.
The inverter support loader program (Windows based), which simplifies setting of function codes, is provided. The optional RS-485 communications card, remote operation extension cable and USB-RS-485 converter are necessary.
Mounting on DIN rail
Using the rail mounting base (option), the inverter can be easily mounted on a DIN rail (35mm wide).
Replacement of older models with new ones is simple.
The latest models can be mounted without drilling additional holes by use of the mouting adapter (option).
Remote operation is possible.
Remote operation can be done easily using the optional RS-485 communications card, remote keypad and remote operation extension cable.
A 400V series, in addition to the 200V series (Three-phase, single-phase), is available.
Models with EMC filter built-in, with braking resistor built-in and with RS-485 communications-compliant are also available on order.
*The RS-485 communications is applicable on the standard model with using the RS-485 communications card (optional accessory).
Type1 (NEMA1) conformed model is available by attaching optional parts.
All standard models comply with the EC Directive (CE marking), UL standards and Canadian standards (cUL certification).
All standard FRENIC-Mini inverters comply with European and North American/Canadian standards, enabling standardization of the specifications for machines and equipment used at home and abroad.
If the model with built-in EMC filter is used, the model conforms to the European EMC Directive.