Mitsubishi FR-D740-0.75K-CHT FREQROL-D700 Single-Phase Input 0.75kW 3-Phase Output AC Drive

Mitsubishi Electric FREQROL-D700 FR-D740-0.75K-CHT is a compact micro inverter designed for controlling three‑phase induction motors using a single‑phase 200‑240 V AC power supply. Rated output 0.75 kW at 200‑240 V, 3‑phase. Built‑in RS‑485 communication (Mitsubishi inverter protocol and Modbus‑RTU), general‑purpose magnetic flux vector control for enhanced low‑speed torque, integrated brake transistor, and safety stop function (STO). IP20 enclosure, self‑cooling, compact footprint.

Applications:

• Conveyor speed regulation and material handling

• Fan and blower speed control in HVAC systems

• Small pump speed control and fluid handling

• Packaging machinery and food processing equipment

• General OEM machine automation

Core Specifications:

• Motor power: 0.75 kW (1 HP)

• Output current: 4.2 A

• Output capacity: 1.7 kVA

• Input voltage: Single‑phase 200‑240 V AC, 50/60 Hz

• Output voltage: 3‑phase 200‑240 V AC (max.)

• Output frequency range: 0.2–400 Hz

• 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)

• Built‑in brake transistor: Yes

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

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

• Display: Integrated digital dial/keypad (LED)

• Terminal block type: Screw clamp

• Enclosure rating: IP20

• Cooling method: Self‑cooling

• Dimensions (W × H × D): approx. 68 mm × 128 mm × 162.5 mm

• Weight: approx. 1.1 kg

• 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

• Regeneration avoidance: Slip compensation

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

• Functions: 15‑segment speed setting, triangular wave function, regeneration avoidance, slip compensation, droop control, password protection

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

• EMC filter: Optional noise filter available (EMC Directive compliant)

• Parameter setting tools: FR Configurator (PC software via RS‑485)

System Integration:

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

• Converts single‑phase 200‑240 V AC input to three‑phase 200‑240 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.

Standards & Compliance:
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‑ABR‑0.4K – Braking resistor for FR‑D700 series

• FR‑D700 series DC reactor – Optional for harmonic suppression