Motor rating1/4 HP
Input supplySingle-phase, 200 to 240 V
Rated output current1.5 A
EnclosureIP20, UL open type
Braking transistorNot available
CommunicationRS-485 Modbus RTU
The Fuji Electric FRN0002C2S-7U is a FRENIC-Mini (C2) compact variable frequency drive rated 1/4 HP with a single-phase, 200 to 240 v, 50/60 hz and a rated output current of 1.5 A.
The FRN0002C2S-7U drives a 1/4 HP four-pole standard motor from a Single-phase, 200 to 240 V, 50/60 Hz supply. Control is by V/f, slip compensation, automatic torque boost or dynamic torque vector control, with an automatic energy-saving function and a process PID regulator built in. It takes a single-phase supply and delivers a three-phase output to the motor, so a three-phase motor runs from a single-phase service. Frequency is set from the built-in volume, a 0 to +10 V DC or 4 to 20 mA DC analog input, the keypad, 16 preset steps or RS-485.
Best for
- Conveyors, fans, pumps, centrifugal separators and food processing machines
- Panels where depth matters: the frame measures 80 x 120 x 80 mm (3.15 x 4.72 x 3.15 inches) W x H x D
- Sites with only a 230 V single-phase service that need to run a three-phase motor
- Small loads that stop on their own: this model has no braking transistor, so an external braking resistor cannot be used
- Quiet or dusty locations: this model is natural cooled with no cooling fan
Warranty
3-year standard warranty from the shipping date for product installed in the USA. Product installed outside the USA carries a 2-year warranty.
Key features
Dynamic torque vector control
Delivers 150% or more starting torque running at 1 Hz with slip compensation and auto torque boost active, for conveyors and high-inertia loads.
RS-485 built in
RJ-45 connector on the unit with Modbus RTU, Fuji dedicated inverter protocol, dedicated keypad protocol and SX protocol for PC loader, plus a terminator ON/OFF switch.
Process PID regulator
Controls temperature, pressure or flow without an external controller, with a low liquid level stop function and integration reset and hold.
Sensorless synchronous motor drive
Sensorless magnetic positioning drives a synchronous motor over a speed control range of 10% of base frequency and up, on ROM version 0500 or later.
16-speed operation
Sixteen preset frequencies are selected from the five programmable digital inputs using SS1, SS2, SS4 and SS8.
Natural cooling
This model is natural cooled, so there is no cooling fan in the drive to service.
Technical specifications
| Inverter type | FRN0002C2S-7U |
| Series | FRENIC-Mini (C2), standard model |
| Nominal applied motor | 1/4 HP (Fuji four-pole standard motor) |
| Rated capacity | 0.57 kVA |
| Input phases, voltage, frequency | Single-phase, 200 to 240 V, 50/60 Hz |
| Voltage and frequency variation | Voltage: +10 to -10%, Frequency: +5 to -5% |
| Rated output voltage | Three-phase 200 to 240 V (with AVR) |
| Output voltage setting range | 80 to 240 V settable at base frequency and at maximum output frequency |
| Rated output current | 1.5 A |
| Derated continuous current | 1.4 A |
| Overload capability | 150% of rated current for 1 min; 150% of rated current for 1 min or 200% of rated current for 0.5 s when the rated current in parentheses applies |
| Rated frequency | 50, 60 Hz |
| Input rated current with DC reactor | 2.0 A |
| Input rated current without DC reactor | 3.3 A |
| Required power supply capacity | 0.4 kVA (with DC reactor) |
| Braking torque | 150% average braking torque decelerating from 60 Hz with AVR control OFF |
| Braking transistor | Not available on this model |
| Cooling method | Natural cooling |
| Weight / mass | 0.6 kg (1.3 lbs) |
| External dimensions | 80 x 120 x 80 mm (3.15 x 4.72 x 3.15 inches) W x H x D |
| Enclosure | IP20 (IEC 60529:1989), UL open type (UL50) |
| Applicable safety standards | UL508C, EN 61800-5-1:2007 |
| Maximum frequency | 25 to 400 Hz |
| Base frequency | 25 to 400 Hz |
| Starting frequency | 0.1 to 60.0 Hz |
| Carrier frequency | 0.75 to 16 kHz |
| Frequency setting resolution | Analog 1/1000 of maximum frequency; keypad 0.01 Hz at 99.99 Hz or less, 0.1 Hz from 100.0 to 400.0 Hz; link 1/20000 of maximum frequency or 0.01 Hz fixed |
| Frequency accuracy | Analog within ± 2% at 25°C (77°F); keypad within ± 0.01% at 25°C (77°F) |
| Control method (induction motor) | V/f control, slip compensation, automatic torque boost, dynamic torque vector control, automatic energy-saving function |
| Control method (synchronous motor) | Sensorless magnetic positioning, speed control range 10% of base frequency and up (ROM version 0500 or later) |
| Starting torque | 150% or more running at 1 Hz with slip compensation and auto torque boost active (induction motor drive only) |
| Torque boost | Automatic torque boost for constant torque loads; manual torque boost settable 0.0 to 20.0% |
| Acceleration / deceleration time | 0.00 to 3600 s, two independent settings switchable while running; linear, S-curve weak, S-curve strong or non-linear pattern |
| Multistep frequency | 16 steps (step 0 to 15) selected by SS1, SS2, SS4 and SS8 |
| Digital inputs | 5 programmable inputs: X1, X2, X3, FWD and REV. Sink or source selected with the built-in switches on the unit |
| Analog inputs | 2 inputs: terminal 12 accepts 0 to +10 V DC for 0 to 100%; terminal C1 accepts +4 to +20 mA DC (or 0 to +20 mA DC) for 0 to 100%. Either can be used as PID process command or feedback |
| Frequency setting potentiometer | Built-in volume. Terminal 13 supplies DC 10 V for an external 1 to 5 kΩ potentiometer |
| Transistor output | 1 output (Y1). Short circuit when ON signal is output, or open circuit when ON signal is output. Max 27 V DC, max 50 mA, leak current 0.1 mA max, ON voltage within 2 V at 50 mA |
| Alarm relay output | 1 output (30A, 30B, 30C). No-voltage contact signal (1c) when the inverter stops on an alarm. Alarm output can be switched between excitation operation and non-excitation operation. Contact rating AC 250 V 0.3 A cosφ = 0.3, DC 48 V 0.5 A |
| Analog output | 1 output (FMA). DC voltage 0 to 10 V, gain settable between 0 and 300%. Selectable monitor: output frequency before or after slip compensation, output current, output voltage, input power, PID feedback value, DC link circuit voltage, PID command, PID output, analog output test |
| Serial communication | Built-in RJ-45 connector, RS-485. Selectable protocol: dedicated keypad protocol, Modbus RTU, Fuji dedicated inverter protocol, or SX protocol for PC loader. Includes terminator ON/OFF switch |
| PLC terminal | +24 V (22 to 27 V), max 50 mA |
| PID control | Process PID regulator. Command from keypad, analog input terminal C1 or RS-485; feedback from analog input terminal C1. Low liquid level stop function, forward/reverse switching, integration reset and hold |
| DC injection braking | Starting frequency 0.0 to 60.0 Hz, braking time 0.0 to 30.0 s, braking level 0 to 100% (induction motor drive only) |
| Momentary power failure | Protective function stops the inverter on a momentary power failure of 15 ms or more; restart selectable |
| Installation location | Indoors, free of corrosive gases, flammable gases, dust and oil mist, contamination level 2 (IEC 60664-1: 2007). Keep out of direct sunlight |
| Ambient temperature | −10°C (14°F) to +50°C (122°F) open type (IP20); −10°C (14°F) to +40°C (104°F) with side-by-side mounting or with a NEMA 1 kit fitted |
| RoHS | Yes |
| Ambient humidity | 5 to 95% RH (no condensation) |
| Altitude | 1000 m (3300 ft) or less with no output derating |
| Vibration | 3 mm (0.12 inch) vibration width from 2 to less than 9 Hz; 9.8 m/s² from 9 to less than 20 Hz; 2 m/s² from 20 to less than 55 Hz; 1 m/s² from 55 to less than 200 Hz |
Specifications on this page are taken from Fuji Electric FRENIC-Mini Series catalog, 24A1-E-0011e, printed pages 6, 7, 9 to 14 and 16. Ambient temperature derating and RoHS status are taken from Fuji Electric Corp. of America datasheet FECA-DS-101b. Verified September 2026.
Matched options
| Option | Part number | Note |
|---|---|---|
| NEMA 1 kit | NEMA1-C2-101 | Not applicable to the EMC filter built-in type or to inverters of 5.5 kW or above |
| DIN rail mounting base | RMA-C1-0.75 | Not suitable for inverters of 5.5 kW (7.5 HP) or above |
Specifications on this page are taken from Fuji Electric FRENIC-Mini Series catalog, 24A1-E-0011e, printed pages 19, 20 and 21. Verified September 2026.
Documentation
Frequently asked questions
- What motor can the FRN0002C2S-7U run?
- It is rated for a 1/4 HP Fuji four-pole standard motor, with a rated capacity of 0.57 kVA and a rated output current of 1.5 A.
- What input power does the FRN0002C2S-7U need?
- Single-phase, 200 to 240 V, 50/60 Hz. The permitted variation is voltage: +10 to -10%, frequency: +5 to -5%.
- What is the overload rating of the FRN0002C2S-7U?
- 150% of rated current for 1 min; 150% of rated current for 1 min or 200% of rated current for 0.5 s when the rated current in parentheses applies, on a rated output current of 1.5 A.
- Does the FRN0002C2S-7U support Modbus RTU?
- Yes. RS-485 is built in on an RJ-45 connector and Modbus RTU is one of the selectable protocols, alongside the Fuji dedicated inverter protocol, the dedicated keypad protocol and SX protocol for PC loader.
- Can the FRN0002C2S-7U run a three-phase motor?
- Yes. The input is single-phase, 200 to 240 v, 50/60 hz and the rated output voltage is three-phase 200 to 240 v (with avr).
- Can a braking resistor be used with the FRN0002C2S-7U?
- No. This model has no braking transistor, so an external braking resistor cannot be operated with it.
- Which NEMA 1 kit fits the FRN0002C2S-7U?
- The NEMA1-C2-101. Mounting the kit brings the inverter enclosure into compliance with the NEMA1 Standard (UL TYPE1 certified).
- What temperature and humidity can the FRN0002C2S-7U run in?
- −10°C (14°F) to +50°C (122°F) open type (IP20); −10°C (14°F) to +40°C (104°F) with side-by-side mounting or with a NEMA 1 kit fitted. Humidity is 5 to 95% RH with no condensation, at 1000 m (3300 ft) or less without derating.
- Series:
- FRENIC-Mini (C2)
- Phase:
- 1-Phase
- Voltage:
- 230VAC
- Power Rating:
- 1/4 HP
- Enclosure:
- IP20
- Safe Torque Off (STO):
- No
- Communication:
- Modbus RTU
- Warranty:
- 3-Year Standard Warranty
- Software Included:
- FRENIC-Loader
- Braking Transistor:
- Not Available
