Mitsubishi FR-D740-0.4K-CHT FREQROL-D700 3‑Phase 0.4kW AC Drive

Mitsubishi Electric FREQROL‑D700 FR‑D740‑0.4K‑CHT is a compact micro inverter for controlling three‑phase induction motors at 380‑480 V AC, 3‑phase. Rated output 0.4 kW (0.5 HP). Built‑in RS‑485 communication (Modbus‑RTU, Mitsubishi inverter protocol), general‑purpose magnetic flux vector control for enhanced low‑speed torque (150% at 1 Hz), and STO safety function (SIL2/PLd). Self‑cooling, IP20 enclosure. Designed for three‑phase motor speed regulation in industrial automation.

Applications:

• Light‑duty conveyor speed regulation

• Small pump speed control and fluid handling

• Fan and blower speed control

• Packaging machinery and food processing equipment

• General OEM machine automation

Core Specifications:

• Motor power: 0.4 kW (0.5 HP)

• Output capacity: 1.2 kVA

• Rated output current: 1.2 A

• Output voltage: 3‑phase 380‑480 V AC (max.)

• Output frequency range: 0.2–400 Hz

• Input voltage: 3‑phase 380‑480 V AC, 50/60 Hz

• Permissible input voltage fluctuation: 325‑528 V AC

• Overload capacity: 150% for 60 s, 200% for 0.5 s (inverse‑time characteristic)

• Control methods: V/F control, general‑purpose magnetic flux vector control, optimum excitation control

• Starting torque: ≥150% at 1 Hz (vector control)

• Safety function: STO (Safe Torque Off) – SIL2/PLd (EN ISO 13849‑1 Category 3, EN 62061, IEC 61508)

• Communication: RS‑485 (Modbus‑RTU, Mitsubishi inverter protocol)

• Display: integrated digital dial/keypad (LED)

• Enclosure rating: IP20

• Cooling: self‑cooling (fanless)

• Weight: approx. 1.2 kg

• Dimensions (W × H × D): 108 mm × 128 mm × 129.5 mm

• Operating temperature: –10 °C … +50 °C

Advanced Specifications:

• Carrier frequency: Soft‑PWM / adjustable high carrier frequency PWM

• Acceleration/deceleration time: 0.1–3600 s (linear or S‑curve)

• Multi‑speed operation: up to 16 pre‑set speeds

• PID control: built‑in for closed‑loop process control

• Auto‑tuning: offline auto‑tuning for motor parameters

• Protection functions: overcurrent, overvoltage, undervoltage, overload (electronic thermal), output short‑circuit, earth fault, heatsink overheat, input phase loss, output phase loss, CPU fault

• Digital inputs: 7 (source/sink configurable)

• Digital outputs: 1 relay output (SPDT, programmable), 1 open‑collector transistor (programmable)

• Analog inputs: 2 (0‑10 V, 4‑20 mA)

System Integration:

• This inverter belongs to the Mitsubishi Electric FREQROL‑D700 series.

• Converts three‑phase 380‑480 V AC input to three‑phase 380‑480 V AC output for standard three‑phase induction motors.

• RS‑485 communication via PU connector supports Modbus‑RTU and Mitsubishi inverter protocol for parameter setting, monitoring, and control.

• Parameter setting and monitoring via integrated digital dial/keypad, optional FR Configurator software, or FR‑PA07 enclosure surface operation panel.

• For detailed installation, wiring, parameter settings, and safety precautions, refer to the FR-D700 Instruction Manual (Basic) and the FR-D700 Instruction Manual (Applied).

Standards & Compliance:
CE, UL, RoHS (varies by region). Refer to manufacturer official documentation for detailed certification and compliance information.

Related Products:

• FR‑PA07 – enclosure surface operation panel (optional, requires FR‑CB20□ connection cable)

• FR‑PU07 – parameter unit with numeric keypad and multi‑language display (optional)

• FR‑CB20□ – parameter unit connection cable

• FR‑D740‑0.75K – 0.75 kW version for higher power requirements

• FR‑E800 series – next‑generation replacement (FR‑E840‑0026‑4‑60) with enhanced performance