Fuji FRN0018G2S4C Inverter

Model Code Explanation

FRN: Fuji inverter series

0018: Capacity code; Heavyduty HHD: 5.5 kW, Lightduty HND: 7.5 kW

G2S: FRENICMEGA G2S series (successor model of G1S)

4: 3phase 380480 V

C: Chinaspecific version, builtin EMC filter

Core Electrical Specifications

Main Functions

1. Sensorless vector control, 200% starting torque at 0.3 Hz, good adaptability for shockloaded applications
2. PID autotuning, 260step custom logic, multispeed, simple positioning & orientation
3. Optional communication cards: DP, Modbus, EtherNet/IP, etc.
4. Servicelife diagnosis, fault history traceback, parameter upload/download via keypad or software
5. Compatible with induction motors and synchronous motors

Typical Applications

Conveyors, packaging machinery, fans & pumps, machine tools, extrusion equipment, generalpurpose process drives.

Replacement References

1. Sameseries alternative: FRN0018G24J (Overseas version, no builtin EMC filter)
2. Domestic alternatives: Inovance MD380T5.5GB/7.5PB; INVT GD3505R5G4

⚠️Replacement note: Terminal definitions, functioncode mapping and communication protocols are not fully compatible. Motor autotuning must be reperformed.

Secondhand Unit Inspection Checklist

1. Verify 3phase output current balance; no phase loss or current unbalance
2. Inspect fan and electrolytic capacitors for bulging or electrolyte leakage
3. Run motor static autotuning to confirm normal vectorcontrol performance
4. Check fault history and clear old alarms

Important Clarification

There is no Mitsubishi FRN0018G2S4C model.

FRN0018G2S4C is a Fuji Electric FRENICMEGA G2S inverter. Mitsubishi inverters use the prefix FR, e.g. FRD740, FRA840. Mitsubishi has no FRNprefixed models. It is a common industry misnomer to call Fuji FRNseries units “Mitsubishi”.

Full Information for Fuji FRN0018G2S4C

Model: FRN0018G2S4C

Brand: Fuji Electric (manufactured in Wuxi, China)

Voltage: 3phase 380480 V

HHD Heavyduty: 5.5 kW; HND Lightduty: 7.5 kW; Output current:13.5 A

Suffix 4: 400 V class; S: Standard model; C: Chinamarket version with builtin EMC filter

Series: FRENICMEGA G2S (G1S upgrade, equipped with STO, sensorless vector, simple positioning)

Frequently Confused: Mitsubishi Peerrating Reference

If you intend to compare with Mitsubishi equivalentpower inverter, the counterpart is FRA8400170460 (5.5 kW heavyduty). Comparison table below:

Onsite Identification Tips

1. Nameplate marking: Fuji displays FRENICMEGA; Mitsubishi displays Mitsubishi Electric
2. Model rule: FRN = Fuji; FR= Mitsubishi. Wrong ordering prefix will result in wrong delivery.
3. Keypad layout: G2S keypad layout differs completely from Mitsubishi A840 series.

Replacement Reminder

Direct dropin swap from Fuji G2S to Mitsubishi A840 is impossible. Terminals, parameters and motortuning logic differ; full recommissioning is required.

Application Fields of Fuji FRN0018G2S4C (FRENICMEGA G2S)

Unit features: HHD Heavyduty 5.5 kW, HND Lightduty 7.5 kW, sensorlessvector control, 200% starting torque @0.3 Hz, builtin braking transistor, STO SafeTorqueOff, simple positioning/orientation, PID autotuning. Suffix4C is Chinaversion with builtin EMC filter, optimized for shockload and constanttorque process drives.

1. Materialhandling & Logistics (Constanttorque, shockprone loads)

Belt / roller / chain conveyors, screw conveyors

Stackers, AS/RS transfer mechanisms, sorting lines

Material hoists, unloading equipment

Fit reasons: Shockload tolerance, high lowspeed torque, multispeed capability, RS485 networking support, builtin braking transistor for emergencystop conditions.

2. Packaging & Foodprocessing Machinery

Packaging machines, sealers, case packers, labelers

Food mixers, slicers, grainprocessing equipment

Processingline material handling

Fit reasons: 260step onboard custom logic may replace smallsize PLC; PID regulation for stable speed; builtin EMC filter reduces field electromagnetic interference.

3. Plastics & Rubber Extrusion

Small extruders, feeders, traction rolls, unwinder/winder equipment

Fit reasons: Stable sensorlessvector speed regulation, good antidisturbance under load fluctuation; supports both induction and synchronous motors; suitable for constanttension traction in extrusion lines.

4. Machinetool & Woodworking Machinery

Auxiliary machinetool axes, rotary worktables, woodplaners, cutters

Highspeed smallspindle drives up to 599 Hz output frequency

Fit reasons: Highresponse vector control, simple positioning/orientation for angularstop applications; STO fulfills machinetool safety requirements.

5. HVAC, Watersupply, Fans & Pumps (HND Lightduty 7.5 kW)

Constantpressure watersupply pumps, circulating pumps, coolingtower fans, boiler fans, HVAC systems

Fit reasons: PID autotuning, energysaving automatic operation. ⚠️Note: G2S is highperformance generalpurpose drive. For largevolume fanpump projects Fuji F2S series is more costeffective.

6. Textile, Papermaking & Cable Equipment

Spinning & knitting machinery; small winders & rewinders

Papermaking auxiliary drives, coatingprocess rolls

Fit reasons: Sufficient lowspeed torque, fast response, stable speed under varying loads; supports optional communication cards for networked control.

7. Chemical & Buildingmaterial Generalprocess Equipment

Agitators, reactor stirrers, centrifuges, small compressors

Buildingmaterial productionline conveyors, grinding equipment

Fit reasons: Strong overload capability:150%1 min /200%3 s; servicelife diagnosis and fault history for maintenance troubleshooting.

8. Other Generalpurpose Equipment

Washing machines, carwash systems, testbenches, various nonstandard automation machines.

Selection & Usage Hints

1. HHD Heavyduty 5.5 kW: For shockloaded, highstartingresistance equipment (conveyors, extruders, winding machines).
2. HND Lightduty 7.5 kW: For smoothload fans and pumps.
3. Builtin EMC filter: Wellsuited for Chinese factory environments; reduces interference to nearby sensors.
4. Simplepositioning function: Can realize basic station positioning without servo drives for cost reduction.

Parameter Setting Procedure for Fuji FRN0018G2S4C (FRENICMEGA G2S)

Keypadbutton description:

PROG/RESET: Enter parameter menu / fault reset

FUNC/DATA: Enter functioncode menu / save parameters

▲ ▼: Scroll functioncodes / modify values

MODE: Toggle monitor screens (frequency, current, voltage, fault records)

FWD, REV, STOP: Keypad forward, reverse, stop commands

1. Standard Commissioning Sequence (Field Workflow)

Step 1: Factory Reset

1. Press【PROG/RESET】to enter parameter mode
2. Locate F00 (Initialization), set value =1
3. Press【FUNC/DATA】to confirm, powercycle the inverter. All parameters revert to factory defaults.

⚠️Important: Perform reset for new units, motor replacement, or abnormal commissioning status.

Step 2: Input Motornameplate Data (Pgroup motor parameters)

Input exact values from the motor nameplate. Mandatory for vectorcontrol operation.

Step 3: Motor Autotuning (Mandatory for vectorcontrol, to achieve 200% @0.3 Hz torque)

1. Static autotuning (Fieldfriendly; no mechanical disconnection required)

Set P07=1 (Static autotuning), press【FUNC/DATA】, display shows TUNE

Press【FWD】to start tuning; wait dozens of seconds, process terminates automatically.

2. Rotational autotuning (Motor must run unloaded; best tuning result)

Set P07=2, press【FWD】. Motor will run at low speed for learning.

Warning: For rotational autotuning, motor must be mechanically decoupled to avoid injury risk.

Step 4: Runcommand & Frequencyreference Source Configuration

✅ Keypad control (Keypad start/stop + keypad frequency adjustment)

F02 Runcommand source =0 (Keypad buttons)

F01 Frequencyreference source =0 (Keypad ▲▼ keys)

✅ Terminal control (Fieldmostcommon: externalterminal startstop, analog speed reference)

F02 =1: Terminal runcommand (Short FWD to COM for forward rotation; short REV to COM for reverse rotation)

F01 Frequencyreference source:

1: Terminal 12 (010 V voltage reference)

2: Terminal C1 (420 mA current reference); set mainboard DIPswitch SW8 to C1 position.

✅ RS485 Communication control

F02 =2: Communication runcommand; F01=4: Communication frequency reference.

Step 5: Basic Fgroup Operating Parameters

This unit has builtin braking transistor. If OV overvoltage faults occur during deceleration, connect external braking resistor between P(+) and DB terminals.

1. Quicksetup for Frequentlyused Functions
2. Multispeed operation (Select preset speeds via Xterminals)
3. Set E01(X1 terminal)=1(SS1); E02(X2 terminal)=2(SS2)
4. C05C19: Multispeed frequency 115, configure each presetspeed value.

Combination logic of X1/X2 terminals supports up to 15 preset speeds. Multispeed has higher priority than analog reference.

2. PID Control (Constantpressure watersupply, constanttension applications)
3. J01=1: Enable PID
4. J02: Select PID setpoint source
5. J03J05: P/I/D gain parameters; enable J30 PID autotuning for automatic gain optimization.
6. STO SafeTorqueOff (Hardware safety circuit)

Terminals TH1TH2: Both terminals must be shortcircuited to enable inverter output. Open STO circuit directly blocks power output without alarm code.

III. Parameter Backup & Upload/Download

Requires TPA2SW operator keypad:

1. Read parameters from old inverter: Enter menu Y98 to upload parameters to keypad memory.
2. Write parameters to new inverter: Set Y99 for download; bulkimport all parameters without manual entry.
3. Controlmode Selection for Different Load Types
4. Conveyors, extruders, hoists (Heavyduty constanttorque)

F42 Controlmode =1【Sensorless Vector 2】. Complete motor autotuning for high lowspeed torque.

2. Fans & pumps (Lightduty squarelaw load)

F42 =0: V/F control. Motor autotuning is unnecessary.

3. Highspeed spindle applications (Highfrequency output)

Increase F03 maximumoutputfrequency setting, run under V/F mode. Respect motor maximumspeed rating.

1. Common Commissioningfault Troubleshooting
2. OC Overcurrent: Doublecheck P03 motorcurrent setting; confirm autotuning completion; increase accelerationtime value.
3. OV Overvoltage: Decelerationtime too short; increase F08 decelerationtime; fit braking resistor for highinertia loads.
4. Insufficient torque: Verify correctness of Pgroup motorparameters, finish autotuning, activate sensorlessvector mode.
5. Electromagnetic interference: 4C model has builtin EMC filter; use shielded motor cables; reliable earthing for inverter and motor.
6. Practical Operation Notes
7. After modifying parameters, press FUNC/DATA to save; otherwise settings will be lost after poweroff.
8. After motor replacement, reenter P01P06 and rerun autotuning.
9. Toggle HHDHeavyduty / HNDLightduty mode via F44: 0 = HHD Heavyduty 5.5 kW; 1 = HND Lightduty 7.5 kW.