Fuji Inverter Frenic Mini Manual

The Fuji Inverter Frenic Mini is a compact, high-performance inverter designed for variable speed control of three-phase induction motors. It features easy operation, multiple control modes, comprehensive protection functions, and user-friendly programming. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting Devices 7. Operation Modes 8. Protection Features 9. Maintenance & Care 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Digital operator, Control terminals, Main circuit terminals, Cooling fan, LED indicators.

Feature	Description
Digital operator	For parameter setting and monitoring
Control terminals	For start/stop control and frequency setting
Main circuit terminals	For power input and motor connection
Cooling fan	For heat dissipation during operation
LED indicators	Power, run, fault status indication
Multi-function input	For external control signals
Analog input	For frequency reference signals
Relay output	For fault and operation signals
Braking transistor	For DC injection braking
Modbus communication	For network control and monitoring

Installation

Unpack and inspect contents. Mount in suitable enclosure.

Mounting: Install on vertical surface with proper clearance for ventilation.
Power wiring: Connect R/S/T to power supply, U/V/W to motor terminals.
Control wiring: Connect control terminals as per application requirements.
Grounding: Ensure proper grounding for safety and noise reduction.

WARNING! High voltage present; disconnect power before installation. Ensure proper grounding.

First-Time Setup

Power on inverter; configure basic parameters.

Motor data setup: Enter motor rated current, voltage, and frequency.
Control method: Select V/F control or sensorless vector control.
Frequency reference: Set maximum and minimum operating frequencies.
Acceleration/deceleration: Configure ramp times for smooth operation.

CAUTION! Verify motor parameters before operation to prevent damage.

Specifications

Power Supply: 3-phase 200-240V AC, 50/60Hz
Output Capacity: 0.1kW to 7.5kW models available
Control Method: V/F control, sensorless vector control
Frequency Range: 0.5Hz to 400Hz
Protection Functions: Overcurrent, overload, overvoltage, undervoltage, overheating
Communication: Modbus RTU, built-in RS485
Operating Temperature: -10°C to +50°C
Storage Temperature: -20°C to +65°C

Controls and Settings

Access parameters via digital operator. Front Panel: RUN/STOP, MODE, UP/DOWN arrows, ENTER.

Digital Operator: Frequency display, Parameter setting, Fault monitoring, Data copy function.

Basic Parameters: Acceleration time (F001), Deceleration time (F002), Maximum frequency (F003), Base frequency (F004). Advanced Parameters: Motor rated current (A041), Overload protection (F009), DC injection braking (F013), Multi-step speeds (F016-F022).

Connecting Devices

Power input: R/S/T terminals. Motor output: U/V/W terminals. Control: Multi-function terminals.

Disconnect power before wiring.
Use shielded cables for control signals.
Connect braking resistor if required.
Verify wiring before power application.

Tip: Keep control cables separated from power cables to prevent noise interference.

Operation Modes

Supports multiple control modes for various applications.

Keypad operation: Use digital operator for start/stop and frequency setting.
External control: Use control terminals for remote operation.
Multi-step speed: Pre-set up to 7 different speeds.
PID control: For process control applications.
Jog operation: For positioning and testing.
DC injection braking: For quick stopping.
Energy saving: Automatic voltage adjustment for efficiency.
Communication control: Network operation via Modbus.

WARNING! Do not operate beyond specified frequency limits. Monitor motor temperature.

Protection Features

Overcurrent protection: Trips at 150% of rated current for 1 minute. Overload protection: Electronic thermal protection for motor. Overvoltage/Undervoltage: Protects against power supply fluctuations. Overheating: Thermal sensor protection.

Maintenance & Care

Regular inspection: Check terminals, cooling fan, and capacitors. Cleaning: Use dry compressed air for dust removal.

CAUTION! Disconnect power before maintenance. Do not use liquids for cleaning.

Regulatory Information

CE compliant: Meets European EMC and low voltage directives. UL/cUL listed: For North American markets. RoHS compliant: Free from hazardous substances. Copyright © Fuji Electric Co., Ltd. For technical support, visit www.fujielectric.com or contact local distributor.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No display on operator	Power supply issue	Check input power and fuses; verify wiring.
Motor not running	Control circuit fault	Check run command signal; verify parameter settings.
Overcurrent fault	Motor overload/short circuit	Check motor and cables; reduce load; increase acceleration time.
Overvoltage fault	Deceleration too fast	Increase deceleration time; install braking resistor.
Overheating fault	Insufficient cooling	Clean cooling fins; ensure proper ventilation; check ambient temperature.

Reset: Clear faults by cycling power or using reset function.

Service: Contact authorized Fuji service center for repairs.