In today’s fast-paced industrial environment, efficiency, precision, and reliability are non-negotiable. Variable frequency drives (VFDs), also known as inverters, play a critical role in optimising motor control, reducing energy consumption, and enhancing overall system performance. Mitsubishi Electric’s FR-D700 series inverter stands out as a compact, user-friendly, and dependable solution for a wide range of applications. Engineered for simplicity and durability, the FR-D700 delivers the performance needed to keep operations running smoothly, making it an ideal choice for industries aiming to improve productivity while minimising costs and maintenance.

Empowering Industry with Innovation: Ultech Engineering & Mitsubishi Electric Partnership

Ultech Engineering Sdn. Bhd. is an integrated engineering solutions provider based in Malaysia. We specialise in automation, electrical, and control systems for industries such as oil and gas, marine, manufacturing, and utilities. Our commitment is to deliver reliable, efficient, and innovative solutions tailored to meet the evolving demands of modern industries.

As part of this commitment, Mitsubishi Electric — founded in 1921 when Mitsubishi Shipbuilding Co. (now Mitsubishi Heavy Industries, Ltd.) spun off its electric motor manufacturing factory in Kobe, Japan — is one of our valued technology partners. Headquartered in Tokyo, Mitsubishi Electric has grown into a global leader in electrical and electronic equipment, renowned for its cutting-edge innovation and trusted engineering.

The company offers a comprehensive portfolio of factory automation products, including programmable logic controllers (PLCs), human-machine interfaces (HMIs), servo systems, and inverters. Through our partnership with Mitsubishi Electric, Ultech Engineering ensures that our clients benefit from proven Japanese engineering, backed by local expertise and support, helping industries stay competitive, efficient, and future-ready.

And now, we’re taking this partnership a step further. Ultech Engineering and Mitsubishi Electric are working together to bring hands-on learning directly to you, starting with an upcoming training session focused on the Mitsubishi Electric FR-D700 inverter. This beginner-friendly session is designed to provide participants with practical experience with one of Mitsubishi’s most popular and user-friendly inverters, helping engineers, technicians and electricians build real-world skills and confidence.

Why Did We Choose to Train with Mitsubishi Electric FR-D700 Inverter?

At Ultech Engineering, we believe that hands-on experience is the most effective way to learn. That’s why we selected the Mitsubishi Electric FR-D700 inverter for our training, especially for those new to industrial automation. Here’s why:

1. Beginner-Friendly Interface
   The FR-D700 is Mitsubishi Electric’s entry-level inverter, designed with a simple and intuitive interface. Even if you have zero prior knowledge about inverters, this model is easy to pick up and start using.
2. Industrial-Grade Functions with Built-In Safety
   Despite being beginner-friendly, the FR-D700 comes equipped with essential inverter functions that meet global industrial standards, including safety features — making it ideal for both learning and real-world applications.
3. Compact and Convenient for Training
   Its compact size makes it highly portable and perfect as a demo or training kit, whether in classrooms, labs, or field workshops.
4. Versatile for Different Applications
   The FR-D700 supports a wide range of general-purpose applications. This makes it suitable for trainees from diverse industries, including manufacturing, facilities maintenance, and engineering services.
5. Single-Phase Model for Accessibility
   To make the training even more accessible, we’ve chosen the single-phase 200V model. It’s easier to power up, especially in training environments where three-phase electricity may not be available.

What is a Mitsubishi Electric FR-D700 Inverter?

The Mitsubishi Electric FR-D700 series, also known as FREQROL-D700, is a versatile and compact variable frequency drive (VFD) designed for controlling three-phase induction motors in various industrial applications. It provides advanced features like vector control, auto-tuning, and compact design, making it a highly versatile and reliable solution for motor control in machinery like conveyors, hoists, and mixers.

At Mitsubishi Electric, "FREQROL is the brand name for their range of frequency inverters. These devices are variable frequency power supplies designed to control the rotational speed of three-phase induction motors. They are commonly used in applications such as pumps, fans, compressors, and HVAC systems. As part of Mitsubishi Electric’s trusted inverter lineup, the FR-D700 stands out for its energy-saving benefits and proven dependability in demanding environments.

Besides that, a Variable Frequency Drive is an electronic device that controls motor speed and torque by adjusting the frequency and voltage of the power it supplies. This simple yet powerful technology is the key to energy efficiency, extended motor life, and greater flexibility in automation — ideal for everything from fans and pumps to conveyors and industrial mixers.

Variable Frequency Drive (VFD) vs. Inverter: What's the Difference and Why It Matters

Although the Mitsubishi Electric FR-D700 is a Variable Frequency Drive (VFD), it is often referred to as an "inverter." This can be a little confusing initially, but the reason lies in how a VFD works. A VFD is an electronic device used to control the speed of an AC motor by varying the frequency and voltage of the electrical power supplied to it. Inside a VFD, there are three main stages: the rectifier, the DC bus (or intermediate circuit), and the inverter.

First, the rectifier converts the incoming AC (alternating current) power into DC (direct current). This DC power is then smoothed and stored in the DC bus. Finally, the inverter stage converts the DC back into AC, but with a variable frequency and voltage. This variable output allows the VFD to control the speed and torque of the motor. The term "inverter" comes from this last stage, where DC is inverted back into AC. Since this stage is critical to motor control, many people casually refer to the entire VFD as an "inverter," especially in common usage across Asia and Europe.

In summary, while a VFD is the full system responsible for adjusting motor speed, the inverter is a key internal component that performs the actual frequency and voltage conversion. This is why devices like the FR-D700 are often called inverters, even though they are technically VFDs.

Importance of Variable Frequency Drives (Inverters)

Variable Frequency Drives (VFDs), also known as inverters, play a crucial role in modern industrial and commercial applications, offering a range of benefits that go beyond simple motor control. Below are key reasons why VFDs are essential:

1. Energy savings: VFDs optimise motor speed based on actual demand, significantly reducing energy consumption and lowering electricity bills.
2. Improved process control: By allowing precise speed adjustments, VFDs help maintain consistent product quality and enhance overall process efficiency.
3. Extended equipment life: Smooth motor starting and stopping reduce mechanical stress on shafts, belts, and gears, prolonging the lifespan of equipment.
4. Reduced maintenance costs: With less wear and tear, systems experience fewer failures, resulting in lower maintenance frequency and costs.
5. Lower peak power demand: VFDs limit inrush current during motor startup, helping facilities avoid high peak demand charges from utility providers.
6. Enhanced system protection: Most VFDs come equipped with protective features like overload, under-voltage, and short-circuit detection to prevent motor damage.
7. Flexibility in system design: VFDs make it possible to use one motor for various operations or speed requirements, simplifying design and increasing versatility.
8. Noise reduction: Operating motors at lower or optimal speeds reduces system noise, creating a quieter work environment.
9. Environmentally friendly: More efficient energy use leads to a smaller carbon footprint, supporting green and sustainable initiatives.
10. Quick return on investment: The cost savings from reduced energy use, maintenance, and downtime typically result in a fast payback period.

Why Learn Variable Frequency Drives (Inverters) Now?

Automation is no longer a luxury—it’s a necessity. As industries rapidly adopt smart manufacturing practices, pursue sustainable energy solutions, and aim for greater operational efficiency. Understanding how to program, troubleshoot, and optimise inverter systems is now a core competency across a wide range of industries, including: manufacturing, oil and gas, building services, water management, agriculture and aquaculture. This shift has created a surge in demand for technicians, engineers, and system integrators who can confidently work with VFD technology. The question is, why now?:

• High Industry Demand: Companies are actively hiring individuals who can install, configure, and maintain inverter systems, particularly as they automate more of their processes.
• Energy Savings & Cost Reduction: With electricity prices rising, businesses are investing in VFDs to cut energy usage and operational costs. Professionals who can optimise performance are highly valued.
• Career Flexibility: VFD skills are versatile—they apply to careers in industrial automation, control engineering, electrical maintenance, and system design. Learning this technology opens doors across multiple fields.
• Hands-On Advantage: Our training focuses on the Mitsubishi Electric FR-D700, a globally trusted inverter that simplifies learning without sacrificing real-world capability. With this device, you’ll gain practical experience that mirrors the demands of modern industrial settings.

You're not just picking up another technical skill—you're building a competitive edge in a rapidly growing field. Whether you're a fresh graduate exploring career options, a working technician seeking to upskill, or a company decision-maker wanting to boost team competencies, this training is designed for you. It offers the kind of foundational knowledge that can kickstart a career in automation or open new doors in industrial maintenance and systems design.

Features and Application of the Mitsubishi Electric FR-D700 Inverter

The Mitsubishi Electric FR-D700 inverter introduces a new standard in compact variable frequency drives by combining high reliability, robust safety features, and user-friendly design into one streamlined solution. It is specifically engineered to meet the demands of a wide range of industrial applications while maintaining a focus on safety compliance, energy efficiency, and ease of maintenance.

1. FR-D700: Compact Inverter with Built-In Safety and Long-Life Reliability

• Safety stop Function: One of the standout features of the FR-D700 series is its built-in safety stop function. Unlike conventional models, which required two magnetic contactors (MCs) to comply with safety regulations, the FR-D700 complies with the EU Machinery Directive without the need for additional external safety devices. When an external emergency stop device is activated, the inverter can shut off output to the motor immediately and reliably. This safety stop function adheres to international safety standards, including EN ISO 13849-1 Category 3 / PLd and EN62061 / IEC61508 SIL2. With only one MC recommended—or none at all for safety stop purposes—users benefit from reduced installation costs, simplified maintenance, and significant space savings in control panels.

• Spring Clamp Terminal (Control Circuit Terminal): Wiring in the FR-D700 is made simpler and more reliable thanks to the adoption of spring clamp terminals for the control circuit, while the main circuit uses screw terminals. These spring terminals allow for tool-free wiring and accommodate blade terminal-treated wires or even bare wires up to 1.5 mm in diameter. The internal spring structure resists vibration, minimising the risk of contact faults, and eliminates the need for periodic retightening, thus enhancing reliability and reducing maintenance efforts.

• Long-Life Design: In terms of component longevity, the inverter is built to last. The cooling fan is designed for a life expectancy of up to 10 years and includes an ON/OFF control mechanism that further extends its lifespan. Additionally, both the main circuit and control circuit capacitors are rated for a design life of up to 10 years under typical industrial conditions—double the life expectancy prescribed by the Japan Electrical Manufacturers’ Association (JEMA). This long-life design makes the FR-D700 ideal for operations where equipment uptime and reliability are critical.

• Leading Life Check Function: To support predictive maintenance, the inverter includes a comprehensive leading life check function. It continuously monitors the condition of critical components such as the main and control capacitors, the inrush current limiting circuit, and the cooling fan. When these components approach the end of their useful life, the inverter issues self-diagnostic alarms, allowing users to replace parts proactively and avoid unexpected downtime. Measurement of capacitor capacity is initiated by a simple power cycle, and fan condition is monitored using built-in speed detection.

• Password Function: Security is also a priority in the FR-D700, which includes a password function that restricts parameter reading and writing. By setting a four-digit password, users can prevent unauthorised access and protect critical operational settings from accidental or malicious changes.

2. FR-D700: High Torque, Smarter Control, Maximum Performance

• 150%/1Hz high starting torque by General–purpose magnetic flux vector control: Performance-wise, the FR-D700 delivers impressive torque, offering up to 150% torque at 1Hz and up to 200% at 3Hz for models rated 3.7kW and below. This high starting torque is made possible through Mitsubishi’s general-purpose magnetic flux vector control and a non-rotational auto-tuning function, which optimises control for various motor types without requiring actual motor rotation. These features make the inverter ideal for applications such as conveyors, hoists, washing machines, and agitators.

• Brake resistor can be connected: A built-in brake transistor is included in models rated 0.4kW and above, enabling connection of an optional brake resistor to enhance regenerative braking capability. This is especially beneficial in machines with large inertia or applications requiring rapid deceleration, such as automated storage systems or elevators.

• Enhanced Function: The inverter also incorporates advanced control features inherited from higher-end models. These include a regeneration avoidance function that automatically adjusts frequency to reduce trip events caused by back-driving fans or presses, and an optimum excitation control function that improves energy efficiency in applications with variable torque loads like pumps and fans. Other notable functions include power-failure deceleration, which safely brings the motor to a stop during undervoltage or power loss, dancer roll PID control for tension applications in textile machines, and a traverse function that ensures even winding in applications like wire drawing.

3. Easy use and time-saving features built in as standard

• Quick setup dial: Fast Parameter Adjustment - The inverter features Mitsubishi’s intuitive setting dial. Turn it quickly to jump values or slowly to fine-tune settings—ideal for fast, precise configuration.

• PC-Based Configuration: Simple and Scalable - Via RS-485 or USB, users can configure the inverter using FR Configurator software. It includes a setup wizard, parameter conversion from older models, and real-time graphing. Parameters can also be adjusted offline using a USB memory device.

• Optional Interfaces: Flexible Operation Access - The FR-PA07 (enclosure-mounted panel) and FR-PU07 (parameter unit) offer convenient access to settings and diagnostics. These units support multiple languages and allow parameter storage for up to three inverters.

• Improved Communication: Faster, More Compatible - Communication functions are enhanced as well. The inverter supports both Mitsubishi’s proprietary protocol and MODBUS® RTU, with increased communication speeds up to 38.4 kbps. The addition of a “multi-command mode” reduces data processing time significantly, making real-time communication faster and more responsive.

Empowering Smarter Industry with the FR-D700 Inverter

The Mitsubishi Electric FR-D700 inverter is more than just a compact and capable drive—it’s a gateway to smarter, more efficient, and more sustainable industrial operations. With its robust safety features, advanced control capabilities, and long-life design, the FR-D700 empowers businesses to optimise performance while minimising downtime and maintenance.

At Ultech Engineering, we believe in not only providing cutting-edge technology but also in equipping industry professionals with the knowledge and hands-on experience to maximise its benefits. That’s why our partnership with Mitsubishi Electric extends beyond product supply into skill-building initiatives that strengthen Malaysia’s technical workforce.

Whether you're an engineer, technician, or business leader, our upcoming FR-D700 hands-on training in Miri offers a unique opportunity to future-proof your operations and your career. Join us, and take the first step toward mastering inverter technology that drives industry forward. To register, you can WhatsApp us with the following details:

1. Full Name:
2. I.C. Number:
3. Company Name:
4. Job Title:
5. Contact Number:
6. Work Email:

Seats are filling up fast, so don’t miss your chance to be part of this exclusive event! Only 30 seats are available! We look forward to seeing you there. WhatsApp us at ‪‪‪(+6010-2894133‬‬‬) to confirm your attendance now!

✅ Why Train in Miri, Sarawak?

• Talent Development in East Malaysia: This session brings high-value engineering knowledge to a region often overlooked for such specialised training, helping to build local capability.
• Bridging East-West Gaps: It's part of a broader effort to bridge the gap between Peninsular and East Malaysian access to industrial technology and expertise.
• Existing Engineering Community: Miri’s growing industrial and oil & gas sectors make it a great place for practical inverter knowledge, especially for those working with motors, drives, and automation systems.
• Strong Local Partnership: IEM Miri’s involvement shows there’s local demand and institutional support, helping ensure a high-quality, professionally endorsed event.

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Contact Us Today to Learn More About Our Hands-on Mitsubishi Electric FR-D700 Inverter Training — and Discover How It Can Drive Efficiency and Innovation in Your Business.