MITSUBISHI ELECTRIC FR-D700 frequency converter

Product positioning and core highlights

Product positioning

The Mitsubishi FR-D700 belongs to the 700 series universal compact frequency converter, which focuses on easy operation, long life, and space saving, and is aimed at small and standardized equipment manufacturers.

core strengths

Safety standards: Supports EN ISO 13849-1 Cat.3/PLd, IEC 61508 SIL2, and simplifies emergency stop circuits.

Long lifespan: The design lifespan of the fan, main capacitor, and control capacitor is all up to 10 years.

Easy to use wiring: The control circuit uses spring clamped terminals, without the need for screw fastening.

High starting torque: 150%/1Hz, up to 200%/3Hz for models with ≤ 3.7kW.

Space saving: Same volume as FR-S500, supports zero distance parallel installation.

Power and Voltage Specifications

Power type, model series, power range, maximum current

Three phase 200V FR-D720 0.1-15kW 58.0A

Three phase 400V FR-D740 0.4-15kW 29.5A

Single phase 200V FR-D720S 0.1~2.2kW 10.0A

Single phase 100V FR-D710W 0.1~0.75kW 4.2A

Control performance

Control method

Universal magnetic flux vector control, V/F control, optimal excitation control.

Torque and Accuracy

Starting torque: 150%/1Hz; ≤ 3.7kW can reach 200%/3Hz.

Open loop speed accuracy: ± 0.1%.

Frequency range: 0.2~400Hz.

Featured Features

Non rotating automatic tuning: parameter identification is completed without rotating the motor.

Power outage deceleration and shutdown: controllable deceleration and shutdown during power outage.

Anti regeneration function: to prevent overspeed tripping of fan loads.

PID/Tension Control: Supports dancer roller tension control.

Winding function: anti deformation for textile and wire winding.

Safety and Protection

Safety function (standard)

Safe Stop: Meets SIL2, PLd, and Cat.3.

No need for dual contactors, reducing costs and wiring.

protection function

Overcurrent, overvoltage, undervoltage, overheating of heat sink, motor overload, input phase loss, output short circuit, grounding fault.

Lifetime warning: Diagnosis of degradation of capacitors, fans, and current limiting circuits.

Interface and Communication

Standard I/O configuration

4DI + 2DIO + 2AI + 1AO + 1RO。

communication

RS-485: up to 38.4kbps.

Support Mitsubishi specific protocols MODBUS RTU。

optional extension 

Encoder interface, I/O expansion, operation panel.

Operation and maintenance

Operation method

Quick parameter adjustment with knob and 4-digit LED display.

Optional: FR-PA07 cabinet panel, FR-PU07 parameter unit (in 8 languages).

PC software: FR Configurator Wizard based setup.

Maintain design

The top of the fan is easy to disassemble, without the need to remove the main circuit line.

Comb shaped wiring cover, cover after wiring.

Store the last 8 fault records, including current/voltage/frequency.

Environment and Certification

Environmental indicators

Working temperature: -10~+50 ℃ (can be installed at zero distance within 40 ℃).

Protection: IP20, optional coated board (harsh environment).

certification

CE、UL/cUL、KC、EAC、RoHS。

Compliant with EMC Directive EN 61800-3 C3.

Typical applications

Conveyors, fans, water pumps, mixers, machine tools, textile machinery, wire equipment, air conditioning fans, small cranes.

Key questions and answers

Question 1: What level does the safety shutdown function of FR-D700 reach? What are the advantages compared to traditional solutions?

Answer: The FR-D700 comes standard with a safety shutdown function that meets EN ISO 13849-1 Category 3/PLd and IEC 61508 SIL2. The traditional solution requires 2 contactors and complex emergency stop wiring; The D700 can achieve safe shutdown with only a single contactor or even without a contactor, saving costs, space, and maintenance workload.

Question 2: What are the specific components that embody the “10-year long life” of FR-D700? How to achieve lifespan monitoring?

answer:

Long life components: cooling fan, main circuit capacitor, control circuit capacitor, surge current limiting circuit, all designed for a lifespan of 10 years (ambient temperature 40 ℃).

Monitoring method: The frequency converter automatically diagnoses the degree of degradation and outputs an alarm signal in advance when approaching its service life to avoid unplanned shutdowns.

Question 3: What are the performance advantages of FR-D700 compared to ordinary frequency converters in low-power and high starting torque scenarios?

answer:

Realize a high starting torque of 150%/1Hz, and for models with ≤ 3.7kW, it can reach 200%/3Hz, meeting the requirements for heavy-duty starting of conveyors, elevators, etc.

Support automatic tuning without rotation, achieving optimal parameter matching without the need to rotate the motor.

Built in brake chopper (above 0.4kW), fast deceleration without the need for additional brake units.