Description
The Mitsubishi FR-D740-7.5K is a compact and highly reliable 7.5kW (10 HP) Variable Frequency Drive (VFD) from Mitsubishi Electric’s popular FREQROL-D700 Series. It is engineered to accurately modulate the speed, acceleration, and torque of 3-phase AC induction and synchronous motors across various industrial environments.
The drive operates by rectifying incoming 3-phase AC current into DC voltage and utilizing high-frequency Pulse-Width Modulation (PWM) to generate a synthesized, variable-frequency AC output waveform. For manufacturing facilities, textile mills, commercial HVAC setups, and water supply projects in Bangladesh, the FR-D740-7.5K delivers optimized energy efficiency, precise speed regulation, and maximum equipment service life.
Key Features
- PWM Frequency Modulation: Converts AC to DC and uses voltage pulse-width modulation to recreate a precise output waveform for motor speed control.
- General-Purpose Magnetic Flux Vector Control: Delivers strong starting torque (up to 150% at 1Hz) to start heavy mechanical loads smoothly.
- Integrated Safety Stop Function: Complies with EU Machinery Directives to shut down output to the motor immediately upon emergency signal activation.
- Compact Footprint: High-density structural layout saves valuable space inside electrical control cabinets.
- Digital Dial Keypad: Feature-rich integrated control knob and LED display allow quick parameter configuration and operational monitoring.
Technical Advantages
- High Efficiency: Solid-state switching topology reduces internal power dissipation and heat build-up.
- Durable Construction: Industrial-grade physical assembly with coated circuit boards guards internal electronics against airborne dust, lint, and humidity.
- Safety Protection: Comprehensive electronic safeguards guard against overcurrent, overvoltage, short circuits, ground faults, phase loss, and thermal overload.
- Energy Saving: Dynamic excitation voltage tuning reduces power consumption during partial motor load conditions.
- Easy Maintenance: Removable terminal blocks and long-life cooling fan design streamline routine maintenance and reduce facility downtime.
Applications
- Industrial & Manufacturing: Industrial conveyors, extruders, mixers, agitators, and automatic packaging machinery.
- Factory Automation: Textile spinning/weaving equipment, paper processing machines, and plastic processing units.
- Commercial Facilities: HVAC supply and exhaust fans, cooling tower fans, and booster pump panels.
- Project Installation: Industrial control panels, motor control centers (MCC), and machinery retrofitting projects built by integrators across Bangladesh.
Why Choose This Product?
- Reliability: Engineered by Mitsubishi Electric to rigorous international standards for long-term 24/7 continuous industrial duty.
- Performance: Smooth speed control and immediate torque response prevent motor stalling during sudden load changes.
- Cost Effectiveness: Delivers precise speed modulation while significantly reducing monthly electricity usage.
- After-Sales Value: Supported in Bangladesh by Loop Shop with technical parameter guidance, verified sourcing, and reliable customer service.
Technical Specification Table
| Specification | Details |
| Model | FR-D740-7.5K |
| Brand | Mitsubishi Electric |
| Rated Power | 7.5 kW (10 HP) |
| Voltage | 380V to 480V AC, 3-Phase |
| Current | Not Available |
| Frequency | 0.2 to 400 Hz |
| Efficiency | High-efficiency drive (>95%) |
| Protection | IP20 / Enclosed Type |
| Dimension | Not Available |
| Weight | Not Available |
| Operating Temperature | -10°C to +50°C |
| Warranty | Standard Manufacturer Warranty |
Features List
✓ Pulse-Width Modulation (PWM) frequency synthesis
✓ General-Purpose Magnetic Flux Vector Control
✓ Integrated safety stop hardware function
✓ Conformal-coated PCBs for humid industrial environments
✓ Intuitive digital dial panel for rapid setup
Benefits For Customers
- Reduces Electricity Cost: Dynamic PWM output control optimizes energy consumption during variable dynamic load cycles.
- Improves Operational Reliability: Soft-starting eliminates abrupt mechanical starting shocks, extending belt, gear, and coupling service life.
- Saves Maintenance Cost: Early diagnostic warnings alert technical crews to power anomalies before critical motor failure occurs.
- Suitable for Bangladesh Environment: Coated electronics withstand high room ambient temperatures and local atmospheric humidity across Bangladesh.
Installation & Maintenance Guide
Installation Requirements:
- Mount vertically inside an IP54-rated, well-ventilated electrical control panel to shield against airborne dust, lint, and oil mist.
- Maintain recommended vertical and horizontal clearances around the drive housing for unrestricted cooling airflow.
- Ground the unit using a dedicated 3-phase earth ground wire and use shielded control cabling to prevent electromagnetic interference (EMI).
Maintenance Tips:
- Clean heat sink fins and cooling fans regularly using dry, low-pressure compressed air.
- Inspect electrical terminal block screw tightness at scheduled intervals to prevent loose wiring caused by machine vibration.
- Monitor diagnostic alarm codes on the digital keypad display or software tools during routine plant maintenance checks.
Safety Instructions:
- Always disconnect incoming 3-phase AC power lines and wait at least 10 minutes for internal DC capacitors to discharge completely before touching terminal screws.
- Electrical installation, parameter tuning, and commissioning must be carried out by qualified electrical engineers or technicians.
Frequently Asked Questions (FAQ)
Q: What is the price of Mitsubishi FR-D740-7.5K 7.5kW VFD in Bangladesh?
A: Product prices vary depending on stock availability and import logistics. Please check the current updated price directly on loopshop.com.bd or contact our customer support team.
Q: Where can I buy original Mitsubishi FR-D740-7.5K VFD in Bangladesh?
A: You can purchase genuine Mitsubishi industrial automation products online directly from Loop Shop Bangladesh at loopshop.com.bd.
Q: What warranty does this product have?
A: It carries a standard supplier/manufacturer warranty. Detailed terms are available on the Loop Shop policy page during checkout.
Q: Is this VFD suitable for Bangladesh climate conditions?
A: Yes, the FR-D740 series features coated PCBs and robust heat management designed to handle local elevated ambient temperatures and high humidity.
Q: How to install this product?
A: Mount vertically inside a protective electrical enclosure. Connect 3-phase AC input power, motor output lines, and ground wiring following the official Mitsubishi manual.
Q: What motor horsepower is compatible with this 7.5kW VFD?
A: This 7.5kW inverter is rated to drive standard 10 HP 3-phase AC induction or synchronous motors.
Q: How does this VFD control motor speed?
A: It converts incoming AC power to DC and uses pulse-width modulation (PWM) to vary the output frequency and voltage waveform sent to the motor.
Q: Does Loop Shop supply VFDs across all districts in Bangladesh?
A: Yes, Loop Shop delivers industrial automation equipment nationwide, including Dhaka, Chittagong, Gazipur, Narayanganj, and Sylhet.
Q: Does this drive include a safety stop feature?
A: Yes, it includes an integrated safety stop function complying with EU directives for fast, reliable output shutdown.
Q: Can I get parameter configuration support from Loop Shop?
A: Yes, Loop Shop provides basic parameter guidance and technical support for industrial customers in Bangladesh.

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