MEAN WELL - Variable Frequency Drives

Limited Efficiency in Power Delivery

It’s no secret that power supply efficiency is a top priority, be it DC DC converter efficiency or AC DC power supplies. The traditional power sources for brushless DC motors aren’t optimized for their specific demands, leading to inefficiencies in power conversion and delivery.

These units lack the ability to dynamically adjust to the motor’s real-time power needs, which reduces their efficiency, especially in applications with varying load conditions. Speaking of which…

Inability to Handle Dynamic Load Requirements

Many brushless DC motors operate in constantly fluctuating circumstances. From industrial fans, to automated guided vehicles (AGVs) and conveyors, the power supplies for these motors need to manage changing loads effectively without performance instability.

Unfortunately, that has not been the case. This leads to surges or drops in power, causing erratic behavior, reduced efficiency, or even damage to sensitive components.

Inadequate Control and Monitoring Capabilities

Industries requiring precise motor control and real-time system monitoring have been disappointed with their options over the years, especially in medical devices or precision equipment where the margin for error is slim to none.

The inability to fine-tune motor performance can cause both inefficiencies and increased downtime, which is why these types of operations are in dire need of a solution featuring advanced communication protocols.

Frequent Overheating and Component Failure

Traditional power supplies are prone to overheating when running high-performance BLDC motors, and this can lead to an array of issues. This can be a shortened power supply lifespan or even potential component failure.

Overheating not only affects motor performance but can also result in costly repairs or power supply replacement. Fortunately, there are now solutions equipped with advanced thermal protection and fanless designs - thanks to MEAN WELL!

Introducing the MEAN Well Variable Frequency Drive (VFD) Power Supply Series

MEAN WELL has built a reputation for consistently innovating on the various types of power supply, from their DIN Rail power supplies to their low-profile AC/DC power supplies. They’ve done it again with the latest offering in their VFD Series.

After three years of industry research, the company has solved many of the common shortcomings associated with traditional solutions. You can count on these products to help you overcome limitations, enhancing energy savings and system reliability simultaneously.

Advanced Efficiency and Power Management

The core concept in developing the MEAN WELL variable frequency drive series was efficiency. These PSUs can achieve up to 93% efficiency in operation. 

The built-in Power Factor Correction (PFC) function (available on AC input models) optimizes energy use, minimizing electrical waste and maximizing power efficiency. 

It also offers a 200% peak current capability so you can rest assured the power supply is equipped to handle sudden surges in power demand without compromising system stability. 

With both AC and DC input models the series supports flexible power configurations for applications from industrial equipment to renewable energy systems. We’ll unpack potential applications shortly, like HVAC systems, water pumps, automated guided vehicles, and more.

Comprehensive Control and Monitoring Features

The MEAN WELL VFD series puts more control in the palm of your hand than ever before with standard control and sensor signals that empower you to easily set motor speed, braking, and programming functions through an external control card (purchased separately).

The communication capabilities of the VFD series enable seamless integration into industrial control systems for precise control and real-time performance monitoring. This was simply not an option in BLDC motor power supplies of the past.

Enhanced Durability and Thermal Management

The fanless design on these PSUs is built to last from the type of durable components you’d expect from a brand like MEAN WELL. Plus, the noise-free operation aligns perfectly with applications where sound sensitivity is a concern.

Each model is equipped with a range of built-in protection functions, including protection against short circuits, over-voltage, over-current, and DC input under-voltage or reverse polarity.

The enclosed power supply models are partially potted for protection against dust and moisture while supporting a wide temperature range of -40°C to +80°C. They’re durable even in the harshest industrial conditions.

You don’t have to stress about power supply certifications, either. These are built in accordance with the latest standards such as IEC/EN 61800-5-1. They also meet electromagnetic compatibility standards IEC/EN 61800-3 for another layer of security.

Common Applications for the MEAN WELL VFD Power Supply Series

The use cases for the MEAN WELL VFD series span industries and applications from HVAC and fans to water pumps, medical devices, and more. Simply put, if you power brushless DC motors, you can benefit from upgrading to the latest and greatest from MEAN WELL

HVAC Systems and Industrial Fans

The MEAN WELL VFD Series enables precise control over motor speed and power consumption to optimize ventilation, heating, and cooling systems. 

It can deliver 200% peak current for smooth operation during start-up and load changes, while the fanless design minimizes operational noise. Both of these factors are essential for creating comfortable and quiet indoor environments.

Water Pump Systems

Irrigation systems, wastewater management, and industrial water pumps are all prime use cases for these variable frequency drive power supplies and control systems. 

This is because the VFD series supports seamless motor speed adjustments for efficient operation that adapts to fluctuating water demands. The built-in (PFC) and energy efficiency capabilities reduce energy consumption, translating to cost savings in large-scale water pumping operations. 

Moreover, the VFD lineup can manage dynamic loads effortlessly for continuous and reliable water flow without interruptions, making it an ideal choice for critical infrastructure where downtime is not an option.

Automated Guided Vehicles (AGVs) and Conveyors

The transportation and logistics sectors have dealt with inefficiencies for far too long, especially in AGVs and conveyor systems. These need precise control and consistent power for continuous operation, and MEAN WELL’s VFD series delivers.

AGVs often operate in environments where compact, efficient, and highly controllable power supplies are essential. Providing adjustable voltage and current levels through a VFD PSU means operators can fine-tune the motor performance for smooth and efficient movement. 

These critical systems can maintain reliable performance even in fast-paced, high-demand environments with the VFD’s compact design and ability to handle peak current demands.

Medical Devices and Precision Equipment

So many different pieces of medical equipment rely on brushless DC motors - ventilators, precision pumps, and diagnostic machines to name a few. It goes without saying that there is zero room for error in these devices - it’s a matter of life or death.

Because they cannot settle for less than the most consistent and reliable power sources, hospitals and device manufacturers can switch to the VFD series with peace of mind knowing their most important processes are safe and accurate.

After all, it meets international safety standards (IEC/EN 61800-5-1) and is equipped with robust protection features that safeguard against power fluctuations. The noiseless design of these medical power supplies aligns perfectly with the needs of medical facilities. 

Different Models Within the Series

Just about any application that calls for brushless DC motors can benefit from upgrading to the VFD series. There is a model for you in this lineup, whether you need AC or DC input, regardless of voltage requirements. Here is a closer look at your options: 

DC-AC and AC-AC Input Models

The VFD series includes both DC input models suitable for 48V motors and AC input models designed for 200-240V motors. The two main categories of models include:

AC Input Models with Power Factor Correction (PFC) for 3-Phase 200V-240V Motors

Enclosed Metal Case Design (VFD-200C-230, VFD-350C-230, and VFD-750C-230)

These models come in a semi-potted, U-type metal enclosure. The enclosed design enhances protection in industrial environments, while the built-in PFC function optimizes power efficiency. 

The power range for these units is from 200W to 750W, suitable for a wide array of high-power applications like industrial fans, pumps, and HVAC systems.

PCB Type Open Design (VFD-250P-230 and VFD-350P-230)

Some applications need a more compact, open-design form factor, and these models with a footprint of 5” x 3” are a perfect choice. 

They provide the same universal AC input range of 90-264VAC and can drive 3-phase 200-240V motors. Power ranges from 250W to 350W, providing flexibility for mid-range power applications in an efficient, space-saving design.

DC Input Models for 3-Phase 48V Motors (VFD-150P-48, VFD-250P-48, and VFD-350P-48)

These models are specifically designed for systems using 48V motors, offering a SELV (Safety Extra Low Voltage) DC input you can count on for reliable, efficient performance.

The compact 4” x 2” PCB footprint provides the perfect solution for smaller-scale applications where space is limited, but performance can’t be compromised. Power output ranges from 150W to 350W, making them ideal for use in robotics, AGVs, and small precision equipment.

If you’re wondering, what power supply do I need from this series? Don’t hesitate to reach out. Our customer service team here at Bravo Electro is eager to help. We may even be able to tailor one of these models to fit your exact power supply specifications!

Need a Custom Build?

Thanks to our close working relationship with this power supply manufacturer we are able to provide a custom power supply if one of the standard offerings doesn’t quite align with your needs. It’s quick, hassle-free, and most importantly, affordable. 

Get in touch with our customer service team and we’ll connect you with our electrical engineers to discuss your application, requirements, turnaround time, and budget. Or, simply fill out our custom power requirements form and we’ll be in touch.

Learn More About the MEAN WELL Variable Frequency Drive Power Supplies at Bravo Electro Today!

Bravo Electro is proud to be a leading MEAN WELL power solutions provider, offering the full selection from this world-renowned brand at unbeatable prices. Get in touch to learn more about how this series can optimize your operation, provide peace of mind, and cut costs. 

We have all the other MEAN WELL models you could need as well, be it a DC to DC converter, high-voltage power supply, din rail power supply, modular power supply, external power supply, LED driver power supply, and many more. You can even shop based on voltage:

• 12 volt power supply

• 24 volt power supply

• 48 volt power supply

Whether you need the best modular power supply or a low profile power supply, you can rest assured we’ve got you covered. Power your operations with confidence - shop Bravo Electro today!