Mitsubishi Electric FR-D720-0.75K FREQROL-D700 Series Three-Phase 200V VFD Inverter

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Производитель: Mitsubishi Electric
Номер продукта: FR-D720-0.75K
Страна происхождения:Соединённые Штаты
Тип продукта: Variable Frequency Drives
Оплата: Т/Т, Western Union
Вес: 2000г
Порт отправления: Сямынь
Гарантия: 12 месяцев

Description

Optimizing space-constrained motor control architectures, the Mitsubishi Electric FR-D720-0.75K micro-drive delivers precise speed regulation and high-torque performance for three-phase induction motors up to 0.75 kW (1 HP). This variable frequency drive operates on a three-phase 200V class input, utilizing advanced general-purpose magnetic flux vector control to achieve starting torques exceeding 150% at 1 Hz. Its highly compact frame makes it an ideal choice for conveyors, packaging machines, fan and pump drives, and automated material handling systems requiring high reliability and simplified integration.

Key Features

Magnetic Flux Vector Control: Ensures stable torque performance and precise speed response, even under varying load conditions.
Integrated Modbus RTU: Built-in RS-485 serial communication port enables seamless network integration without additional interface cards.
Safe Torque Off (STO): Supports integrated safety stop functions compliant with EN ISO 13849-1 Category 3 / PLd and IEC 61508 SIL2.
Spring-Clamp Control Terminals: High-reliability wiring design that resists vibration and reduces commissioning time.
One-Touch Digital Dial: Simplified parameter entry and real-time monitoring directly from the integrated control panel.

Typical Industrial Applications

Packaging Machinery: Smooth acceleration and deceleration for delicate product handling.
Conveyor Systems: Precise speed synchronization and high starting torque for heavy-load startup.
HVAC Fans and Pumps: Optimized energy saving using integrated optimum excitation control algorithms.
Machine Tool Auxiliaries: Reliable speed control for coolant pumps, small spindles, and chip conveyors.

Technical Specifications

Parameter	Specification Values
Manufacturer	Mitsubishi Electric
Model Number	FR-D720-0.75K
Product Series	FREQROL-D700 Series
Applicable Motor Capacity	0.75 kW (1 HP)
Rated Output Current	4.2 A
Rated Output Capacity	1.7 kVA
Output Voltage Rating	3-Phase 200 to 240 VAC
Overload Current Rating	150% for 60 seconds, 200% for 0.5 seconds
Input Voltage Class	Three-Phase 200V Class
Input AC Voltage & Frequency	3-Phase 200 to 240 VAC, 50 Hz / 60 Hz
Allowable Voltage Variation	170 to 264 VAC
Power Supply Frequency Tolerance	+/- 5%
Control Method	Soft-PWM / High Carrier Frequency PWM (V/F Control, Magnetic Flux Vector Control selectable)
Output Frequency Range	0.2 to 400 Hz
Cooling Method	Self-cooling
Protective Structure	Enclosed Type (IP20)
Ambient Operating Temperature	-10 to +50 degC (non-freezing)
Ambient Operating Humidity	90% RH or less (non-condensing)
Shipping Weight (Calculated)	2.0 kg
Product Dimensions	68 mm (W) x 128 mm (H) x 142.5 mm (D)

Control Connections and Interfaces

Terminal / Port	Function / Circuit Assignment
L1, L2, L3	Three-phase AC power input
U, V, W	Three-phase AC output to induction motor
Terminal 2	Analog frequency setting input (0 to 10 V / 0 to 5 V selectable)
Terminal 4	Analog input (0 to 10 V / 0 to 5 V / 4 to 20 mA selectable)
FM	Pulse train output monitor (Up to 2.4 kHz)
RJ-45 Port	RS-485 Modbus RTU interface / PU connection

Empirical Engineering Insights

Alternative Models & Compatibility

The FR-D720-0.75K acts as a direct modern replacement for legacy FR-S520-0.75K drives. Note that control terminal layouts differ; the newer D700 series uses vibration-resistant spring-clamp terminals instead of traditional screw terminals. When migrating configurations from legacy drives, parameter maps generally align, but you must manually check Parameter 79 (Operation Mode Selection) to ensure the network or external start commands route correctly.

Application Pitfalls & Engineering Notes

Because this small frame size utilizes natural convection (self-cooling) and lacks an internal cooling fan, it is highly sensitive to ambient heat concentration. If mounted inside compact, unventilated enclosures, the drive will rapidly trigger an Overheat (E.THT or E.FIN) fault. Ensure a minimum of 50 mm clearance above and below the drive and verify that panel temperatures do not exceed 50 degC under continuous duty cycles.

Commissioning & Wiring Tips

When configuring Modbus RTU communications via the integrated RJ-45 connection, remember that standard Ethernet patch cables can be used, but you must terminate the end-of-line drive with a 120-ohm resistor between the SDA and SDB signals to prevent communication timeouts. Always route control signal lines and main power lines in separate conduits to eliminate EMI induced noise on critical analog input terminals (Terminal 2 and 4).

Installation Guidelines

CRITICAL WARNING: Hazardous voltages remain present on the drive's internal capacitors for several minutes after the main power is disconnected. Always verify that the charge lamp is fully extinguished and use a voltmeter to confirm zero voltage across terminals P/+ and N/- before touching any wiring connections.

Mount the inverter vertically on a flat, non-flammable surface, observing standard vertical clearance rules to allow natural heat dissipation.

Connect three-phase incoming AC power to terminals L1, L2, and L3. Ground the drive chassis to a dedicated earth terminal using the shortest practical path.

Route the motor leads directly from terminals U, V, and W to the induction motor, ensuring that shielding is properly terminated to reduce electromagnetic interference.

Turn on the input power. Verify that the integrated LED display lights up and indicates normal standby status before starting parameter setup.

Key Features:

Can I run a single-phase motor with the FR-D720-0.75K?

No. Variable frequency drives in the FREQROL-D700 series are designed exclusively to run three-phase induction motors. Attempting to connect a single-phase motor will cause drive malfunction, phase loss faults, or winding damage.

Can the FR-D720-0.75K be supplied with single-phase power?

This model is officially rated for 3-phase 200V AC input. Running it on single-phase input requires derating the output capacity by approximately 50% and may trigger input phase loss alarms depending on parameter configurations.

Why does the drive trigger an overheat fault under nominal load?

Since the FR-D720-0.75K is a self-cooled model without an internal cooling fan, it depends on natural convection. Ensure the drive is mounted vertically with proper clearances and that the panel temperature remains below 50 degC.

How do I configure the drive for Modbus RTU communication?

Connect via the RJ-45 PU port and configure communication parameters: Pr. 117 (Station Number), Pr. 118 (Baud Rate), and Pr. 120 (Parity/Stop bits). Set Pr. 549 to '1' to enable the Modbus RTU protocol instead of the proprietary Mitsubishi protocol.

Глобальная экспресс-доставка

Стандартная доставка: 4-6 рабочих дней через DHL, FedEx и UPS.
Экспресс-отправка: Отправка в тот же день для заказов со склада, сделанных до 14:00 (GMT+8).
Мировое покрытие: Обслуживаем более 150 стран, включая быструю доставку в Саудовскую Аравию и ОАЭ.

Возвраты и гарантия

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Mitsubishi Electric FR-D720-0.75K FREQROL-D700 Series Three-Phase 200V VFD Inverter