FR-D700 Series Multi-Functional Frequency Converter Inverter
The FR-D700 Series is a multi-functional compact inverter that
integrates speed regulation, protection, communication, and other
practical features in a small footprint. Covering a power range of
0.1-15kW, it is compatible with 1-phase 220V/3-phase 380V power
grids and suits general machinery such as fans, pumps, and
conveyors. With user-friendly operation and simple commissioning,
it requires no complex professional knowledge to get started
quickly. Equipped with stable driving performance and reliable
protection functions (e.g., overload and undervoltage protection),
it offers cost-effective solutions for small and medium-sized
enterprises and entry-level inverter users.
Key Features
- Compact Structure & Flexible Installation: Space-saving compact design supports stacked mounting to maximize
control cabinet density. Integrated spring-clamp terminals enable
quick and secure wiring for power and control cables.
- Precise Control & Excellent Performance: Multiple control modes including universal flux vector control and
V/F control. Delivers 150% torque at 1Hz for superior low-speed
operation with 60:1 speed regulation range.
- Comprehensive Safety & High Stability: Integrates safe stop functionality and multiple protection
functions including overcurrent, overvoltage, undervoltage, and
overheating protection. Automatically diagnoses aging status of
critical components.
- Wide Adaptability & High Integration: Covers broad power range to match motors of different sizes.
Built-in Modbus RTU and other communication protocols for seamless
integration into industrial control systems.
- Easy Maintenance & Long Service Life: Long-life component design with cooling fans and capacitors
boasting 10-year design lifespan. Password protection function
restricts parameter reading/writing and prevents misoperation.
- Energy Efficiency & Superior Compatibility: Energy-saving operation mode automatically adjusts running status
based on motor load. Some models integrate EMC filters to minimize
electromagnetic interference.
Core Specifications
| Specification Category | Specific Parameter | Details |
|---|
| Applicable Motor Capacity | Power Range | 0.1 - 15kW, compatible with general-purpose induction motors of
different power ratings |
| Input Power Parameters | Voltage Rating | 3-phase 200 - 240V (some 200V-class models); 3-phase 380 - 480V
(some 400V-class models) |
| Allowable Voltage Fluctuation | 170 - 264V (200V-class); 325 - 528V (400V-class) |
| Frequency Compatibility | 50Hz/60Hz, with allowable frequency fluctuation of ±5% |
| Output Performance Parameters | Rated Output Current | Varies by power: e.g., 0.1kW model = 0.8A, 15kW model = 58A
(200V-class); 3.7kW model = 8A (400V-class), etc. |
| Overload Capacity | 150% rated current for 60 seconds, 200% rated current for 0.5
seconds (inverse time characteristic) |
| Output Frequency Range | 0.2 - 400Hz, meeting speed regulation requirements of most
general-purpose machinery |
| Starting Torque | ≥150% torque at 1Hz (when using universal flux vector control with
slip compensation enabled) |
| Control-Related Parameters | Control Methods | Optional V/F control, universal flux vector control, optimal
excitation control; combined with soft PWM/high carrier frequency
PWM control |
| Frequency Accuracy | Analog input: Within ±1% of maximum output frequency (at 25℃±10℃);
Digital input: Within 0.01% of set output frequency |
| Acceleration/Deceleration Setting | Adjustable time: 0.1 - 3600 seconds; Supports switching between
linear or S-curve acceleration/deceleration modes |
| Additional Control Functions | Built-in PID control, triangle wave function; Supports multi-speed
operation, instantaneous stop & restart, smooth speed control, etc. |
| Structural & Protection Parameters | Protection Class | Enclosed structure with IP20 protection rating |
| Cooling Method | Natural cooling (small-power models); Forced air cooling
(high-power models) |
| Weight | Varies by power: 0.5 - 6.5kg (e.g., 0.1kW model ≈ 0.5kg, 7.5kW
model ≈ 6.5kg) |
| Interface & Auxiliary Parameters | Communication Interface | Built-in RS-485 interface with integrated Modbus-RTU protocol,
enabling integration into industrial control systems |
| I/O Terminals | 2 analog input terminals, 5 contact-type digital input terminals; 1
transistor output terminal, 1 relay output terminal |
| Braking Configuration | Built-in braking transistor; External braking resistor can be added
to enhance regenerative braking capability |
| Special Configurations | Optional EMC filter for some models; 4-digit LED digital display
for parameter viewing and basic operations |
Model Specifications
| Model No. | Target Market | Rated Capacity | Rated Current | Input Voltage | Key Additional Features | Dimensions (W*H*D, mm) | Weight |
|---|
| FR-D720S-008SC-EC | Europe | 0.1kW | 0.8A | 1-phase 200-240V | Modbus-RTU communication support, IP20 protection, soft PWM control | 68*128*80.5 | 0.5kg |
| FR-D720S-01SC4-EC | Europe | 0.2kW | 1.4A | 1-phase 200-240V | Frequency skip operation, suitable for speed control of small
general-purpose machinery | / | / |
| FR-D720S-025SC-EC | Europe | 0.4kW | 2.5A | 1-phase 200-240V | High carrier frequency PWM control, meeting precision speed
regulation requirements | / | / |
| FR-D720S-042SC-EC | Europe | 0.75kW | 4.2A | 1-phase 200-240V | Compatible with V/F control and flux vector control, suitable for
low-power pumps | / | / |
| FR-D720S-070SC-EC | Europe | 1.5kW | 7.0A | 1-phase 200-240V | Multi-speed operation support, ideal for conveyors and other
material handling equipment | / | / |
| FR-D720S-100SC-EC | Europe | 2.2kW | 10.0A | 1-phase 200-240V | Built-in PID control, suitable for closed-loop control scenarios
like constant-pressure water supply | / | / |
| FR-D740-012SC-EC | Europe | 0.4kW | 1.2A | 3-phase 380-480V | Compliant with EU electrical standards, instantaneous stop &
restart function | / | / |
| FR-D740-022SC-EC | Europe | 0.75kW | 2.2A | 3-phase 380-480V | ≥150% torque at 1Hz, excellent starting performance | / | / |
| FR-D740-036SC-EC | Europe | 1.5kW | 3.6A | 3-phase 380-480V | Equipped with Modbus-RTU/RS485 interface, meeting industrial
networking needs | / | / |
| FR-D740-050SC-EC | Europe | 2.2kW | 5.0A | 3-phase 380-480V | Inverse time overload protection, suitable for machine tool
auxiliary motors | / | / |
| FR-D740-160SC-EC | Europe | 7.5kW | 16.0A | 3-phase 380-480V | Forced air cooling support, ideal for high-power fan speed
regulation | 220*150*155 | / |
| FR-D720-008-N6 | North America | 0.1kW | 0.8A | 3-phase 200-240V | Protective coating, suitable for humid industrial environments in
North America, Modbus-RTU support | / | / |
| FR-D720-014-CC | North America | 0.2kW | 1.4A | 3-phase 200-240V | Protective coating, meeting North American industrial equipment
safety standards | / | / |
| FR-D720-014-N6 | North America | 0.2kW | 1.4A | 3-phase 200-240V | Extended protective coating version, adaptable to harsh working
conditions, output frequency 0.2-400Hz | / | / |
| FR-D720-025-CC | North America | 1.5kW | 7.0A | 3-phase 200-240V | Compliant with US-Canada-Mexico specifications, suitable for
processing tool motor control | / | / |
| FR-D720-2.2K-G | North America | 2.2kW | 10.0A | 3-phase 200-240V | LE specification, remote I/O control support, ideal for automated
production lines | / | / |
Applications
Small-Scale Manufacturing (Europe/North America)
In family-owned workshops and SME factories across Germany, Italy,
and the US, the FR-D700 Series drives small-scale production
equipment including woodworking shops, metal fabrication, and
plastic processing applications with precise speed control and
compact design.
Food & Beverage Industry (Global, Especially EU/US)
Compliant with hygiene and safety standards, used in bakeries,
dairy processing, and snack production facilities for dough mixers,
milk pumps, and conveyor belts with stable low-speed operation and
easy-to-clean design.
HVAC & Building Services (Europe/North America/SE Asia)
Ideal for commercial and residential building systems including
office buildings, residential complexes, and small hotels for
regulating fan coils, ventilation fans, and water circulation pumps
with energy-saving mode and compact size.
Water & Wastewater Treatment (Global, Especially Developing
Markets)
Suited for small-scale treatment facilities and rural water supply
systems including village water pumps, sewage treatment plants, and
pool filtration with undervoltage protection and Modbus-RTU
communication.
Textile & Garment Industry (India/Turkey/Vietnam)
Cost-effective choice for small textile workshops and garment
factories including spinning machines, dyeing equipment, and sewing
machine lines with precise frequency accuracy and S-curve
acceleration/deceleration.
Retail & Commercial Facilities (Global Urban Areas)
Adapted to small-scale commercial equipment including supermarket
refrigeration, convenience store beverage dispensers, and fitness
centers with energy-saving mode, compact size, and smooth speed
control.
Core Adaptation Advantages
- Voltage Flexibility: Supports 200-240V and 380-480V grids, compatible with power
standards in Europe, North America, Asia, and Latin America
- Space-Saving Design: Compact dimensions (as small as 68*128*80.5mm) fit into small
equipment and tight installation spaces
- User-Friendly Operation: Simple LED display and preset parameters allow quick setup without
professional technical knowledge
- Durability & Low Maintenance: Long-life components (10-year design for fans and capacitors) and
comprehensive protection functions minimize downtime
- Cost-Effectiveness: Balances multi-functionality and affordability, making it
accessible for small businesses and emerging markets
Frequently Asked Questions
Power Supply & Grid Adaptation Issues
Q: We use the FR-D720-0.4K (3-phase 200V) to drive submersible
pumps in a small water supply project in rural India. The local
grid voltage frequently fluctuates between 160-220V, causing the
inverter to shut down with an undervoltage alarm (E.UV). How to fix
this?
A: The minimum allowable voltage for the 200V-class FR-D720 Series
is 170V. First, enter parameter P052 (Undervoltage Protection
Level) and change the default "Standard" to "Low" to extend the
protection delay from 3 seconds to 8 seconds. For frequent
fluctuations, install a 1.5kW 3-phase automatic voltage stabilizer
at the inverter input. Additionally, check if the power cable is
too long and upgrade to a thicker wire if exceeding 10 meters.
Q: Our FR-D740-2.2K (3-phase 380-480V) in a US factory is connected
to the local 480V grid but triggers an overvoltage alarm (E.OV)
after 30 minutes of operation. However, the grid voltage measures
normal. What's the cause?
A: First, enter parameter P000 (Frequency Setting) to set the grid
frequency to 60Hz, and check that parameter P051 (Overvoltage
Protection Level) is set to "High". Second, when driving inductive
loads, regenerative energy is generated during deceleration. Extend
the deceleration time (parameter P010) or connect a matching
braking resistor. Also, ensure the inverter is properly grounded.
Installation & Environmental Adaptation Issues
Q: We use the FR-D720S-0.75K (1-phase 200-240V) to control air
conditioning fans in a small hotel basement in Thailand. Due to the
humid environment, the inverter frequently flashes fault lights.
How to protect it?
A: The base FR-D700 model has IP20 protection, which is not
moisture-resistant. Install an IP55 waterproof enclosure for the
inverter and drill drainage holes at the bottom. Install a small
dehumidifier to keep ambient humidity below 60%. Clean the inverter
terminals with anhydrous alcohol every 3 months and apply
anti-oxidation paste.
Q: We use the FR-D740-1.5K (3-phase 380-480V) to drive sanders in a
European woodworking workshop with heavy dust. The inverter often
overheats and shuts down. How to resolve it completely?
A: Replace the inverter's standard ventilation filter with a
high-density dustproof filter and clean the filter and heatsink
with compressed air every week. Install a simple dust cover around
the inverter. If space allows, move the inverter to an independent
control cabinet outside the workshop.
Technical Support: For detailed technical specifications, installation guidance, and
troubleshooting assistance, please consult the official Mitsubishi
FR-D700 Series documentation or contact authorized technical
support representatives.
i650 motec Series Frequency Converter Inverter
