China Customized Nidec VFD Manufacturers Factory - Nidec VFD Free Sample

Your Professional Nidec VFD Supplier

Qingdao Kerun Puhui Drive Technology Co., Ltd. is a high-tech enterprise specializing in industrial drive and control technologies.

The company’s main products include frequency converters, soft starters, ozone medium-high frequency power supplies, industrial large fans, safety mats, bumpers, industrial inspection robots, servo drives, and more.

Unidrive VFD
The MH71 pulse-type drive is a high-performance, general-purpose servo drive operating at 200V, with a power range of 400W to 2kW. It supports a maximum command pulse frequency of 4MHz, combined with
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Commander C Drive
The Commander C series stands as a compact, high-performance AC motor drive engineered for seamless installation and versatile control, ideally suited for a diverse array of applications including
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Nidec Mini VFD
The Captain X series variable frequency drive, with its exceptionally compact chassis and ultra-simplified operation design, embodies the philosophy of small size, high output, easy debugging, and
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Nidec MG Series
Superior software control platform with proprietary vector control algorithms.Genuine current vector control enables decoupled control of torque current and excitation current.Advanced vector control
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Why Choose us

Strong Certified Strength

Recognized as a high-tech enterprise and certified under ISO 9001 and ISO 14001 management systems, the company holds a robust intellectual property portfolio, including multiple invention patents and registered software copyrights.

Dedicated R&D Capability

The company maintains a seasoned research and development team with an average of over 10 years’ industry experience. It actively collaborates with leading universities and national-level research institutions to drive technological innovation and product advancement.

Wide Market Coverage

Annual unit sales exceed 50,000, reflecting broad market acceptance. The company achieves balanced geographic coverage, with well-established distribution networks across both domestic (China) and international markets.

Parameter

Item	Description
Power & Voltage Range	Wide input voltage options (e.g., 115V–690V) and power range from fractional to high horsepower applications
Control Modes	Supports open-loop V/F control and advanced vector control (including sensorless/closed-loop options)
Speed Control	Adjustable minimum/maximum frequency, multi-speed reference, and smooth acceleration/deceleration ramps
Motor Matching	Automatic motor parameter tuning for rated voltage, current, frequency, and speed optimization
Protection Functions	Overcurrent, overvoltage, undervoltage, overload, thermal, and fault diagnostics with safety features (e.g., STO support)

Functions of Nidec VFD

Full-color LCD touchscreen — Provides an intuitive interface for operation, visual diagnostics, and VFD bypass setup wizard

Standard Hand/Off/Automatic — Selection allows for ease in switching control modes between Hand (Local) and Auto (Remote)

Fireman’s Override — Provides life-saving functionality for fire personnel in conjunction with Fire Mode to provide the ultimate in flexibility for handling emergency fire conditions

Automatic transfer to bypass on VFD fault — In the unlikely event of a VFD trip, the panel switches to bypass control for critical applications

Damper control — Delays the start of the VFD or Bypass until the HMI Bypass control receives confirmation of damper being fully open

Motor Overload Protection — Protects the motor in bypass or VFD mode even if the VFD is removed for service

Components of Nidec VFD

Rectifier:

Converts incoming AC power to DC power.

DC Bus:

Smooths the rectified power and stores it for the inverter.

Inverter:

Converts the DC power back into variable frequency AC power to drive the motor.

Control Circuit:

Monitors and adjusts the output frequency and voltage to meet the desired operational conditions.

Application of Nidec VFD

Industrial Ventilation Systems:

Used to regulate fan speed in factories and workshops for stable airflow and energy-saving ventilation control.

HVAC & Air Handling Units:

Applied in heating, ventilation, and air conditioning systems to adjust air volume based on temperature or pressure demand.

HVLS & Cooling Fans:

Suitable for large industrial ceiling fans and cooling systems to achieve smooth, low-noise, and efficient air circulation.

Certificate

Delivery Information

Item	Description
Shipping Method	Sea freight (bulk orders) or air/express (small urgent orders)
Packaging	Strong export cartons or wooden cases with reinforced protection
Loading Type	Modular disassembly packing for safe container loading and transport

FAQ

Q: Do you lose power with a VFD?

A: VFDs have the potential to save a lot of energy, but they're not a perfectly efficient component. There are losses within the VFD itself. A standard VFD is typically somewhere between 96% and 97% efficiency. That means there's 3-4% loss for all the power you feed through a VFD to a motor.

Q: Can a VFD make a motor run faster?

A: A VFD can drive a motor faster than its nameplate speed, however, above the rated speed, the motor looses torque (twisting force). At higher speeds, less and less torque is possible.

Q: What is the main advantage of using a VFD?

A: One of the primary advantages of using VFDs is their energy-saving potential. By adjusting the power supply frequency and voltage to the motor, VFDs optimize energy consumption.

We are one of the most professional nidec VFD manufacturers in China, specialized in providing high quality customized products. We warmly welcome you to buy high-grade nidec VFD at low price from our factory. Contact us for free sample.

safety pressure mat sensor, unidrive Inverter, small servo

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