ZF900 Industrial Variable Frequency Drive (VFD) 7.5–800kW For Pumps, Fans, Compressors And Heavy-Duty Motor Applications

7.5–800kW | 3-Phase AC Drive | High-Performance VFD for Industrial Applications

The ZF900 is a high-performance variable frequency drive designed for demanding industrial applications where stable motor control, reliable operation, and precise speed regulation are required.

With a wide power range from 7.5kW to 800kW, the ZF900 can be used for pumps, fans, conveyors, compressors, crushers, mixers, extruders, and other industrial machinery.

It supports multiple motor control modes and provides flexible parameter configuration for different motor types and application requirements.

Need a VFD for a specific motor or application? Contact our engineers for model selection and technical support.

The ZF900 covers a wide range from 7.5kW to 800kW, making it suitable for both medium-sized machines and large industrial equipment.

Different voltage and power configurations can be selected according to the motor and electrical system.

The drive supports advanced motor control algorithms for stable operation under different load conditions.

Depending on the application, the VFD can provide:

• V/F control
• Sensorless vector control
• Vector control with encoder
• Adjustable acceleration and deceleration
• Adjustable torque characteristics
• Automatic motor parameter identification

These functions help maintain stable motor speed and torque during changes in load.

Industrial motors often operate under changing loads. The ZF900 continuously monitors motor current, voltage, frequency, and other operating parameters to provide appropriate control and protection.

This makes it suitable for applications where the motor needs to frequently accelerate, decelerate, or adjust its operating speed.

The ZF900 integrates multiple protection functions to help reduce the risk of drive and motor damage.

Protection functions may include:

• Overcurrent protection
• Overvoltage protection
• Undervoltage protection
• Overload protection
• Motor overheating protection
• Input phase loss protection
• Output phase loss protection
• Short-circuit protection
• Stall protection
• Over-temperature protection

Protection functions can be configured according to the application and motor requirements.

*Actual specifications depend on the selected model and configuration.

The ZF900 can be configured for different industrial applications.

For water supply, irrigation, circulation, drainage, and industrial pumping systems.

The VFD adjusts pump speed according to actual demand, helping reduce unnecessary motor operation at full speed.

Typical applications include:

• Water supply systems
• Irrigation pumps
• Booster pumps
• Cooling water pumps
• Industrial circulation pumps
• Drainage systems

Suitable for ventilation, exhaust, cooling, and industrial air-handling systems.

Motor speed can be adjusted according to airflow requirements instead of continuously operating at maximum speed.

The ZF900 can be used for different types of industrial compressors where variable-speed motor control is required.

Typical applications include:

• Air compressors
• Industrial compressors
• Process compressors
• Cooling systems

Suitable for belt conveyors, material handling systems, production lines, and logistics equipment.

Variable-speed control allows the conveyor speed to be adjusted according to production requirements.

For crushers and other heavy-duty machinery, the VFD can provide controlled acceleration and stable motor operation.

The final model selection should consider:

• Motor rated power
• Motor rated current
• Starting torque
• Load characteristics
• Acceleration requirements
• Operating frequency

The ZF900 can provide adjustable motor speed for industrial mixing, extrusion, and processing equipment.

A motor running continuously at its rated speed is not always necessary.

For applications such as pumps and fans, the required flow or airflow may change during operation. A VFD allows the motor speed to be adjusted according to the actual operating requirement.

This can provide several benefits:

Adjustable Motor Speed

Control motor speed according to the process requirement.

Soft Starting

Gradually increase motor speed instead of applying full-speed operation immediately.

Reduced Mechanical Stress

Controlled acceleration and deceleration can reduce mechanical shock to motors, pumps, conveyors, and other equipment.

Process Control

Maintain a more suitable speed for different production conditions.

Energy Management

In variable-torque applications such as pumps and fans, reducing motor speed can significantly reduce power consumption.

Selecting a VFD based only on motor kW is not always sufficient.

For correct model selection, we recommend confirming the following information:

Example:

Motor: 110kW

Example:

380V / 400V / 415V

The motor nameplate current is particularly important for VFD selection.

Usually:

50Hz or 60Hz

For example:

• Pump
• Fan
• Conveyor
• Crusher
• Compressor
• Extruder
• Hoist
• Mixer

Different loads have different torque requirements.

For example:

Pump/Fan → Variable torque

Crusher/Conveyor → Constant torque

Hoist → High starting torque

Therefore, the required VFD capacity may be different even when the motor power is the same.

Correct installation is important for reliable VFD operation.

Before installation, confirm:

• Input voltage
• Motor voltage
• Motor current
• Motor cable size
• Grounding
• Installation environment
• Ambient temperature
• Ventilation
• Required protection devices

For high-power applications, additional components may be required depending on the electrical system and application.

These may include:

• Input circuit breaker
• AC contactor
• Input reactor
• DC reactor
• Output reactor
• EMC filter
• Braking resistor
• Bypass system
• Harmonic mitigation equipment

Our engineers can recommend the appropriate configuration based on the actual application.

ZFENG ELECTRIC is a manufacturer specializing in industrial motor control and variable frequency drive technology.

Our products are developed for industrial applications including motor speed control, pump systems, fans, compressors, conveyors, and heavy-duty machinery.

20+ years of experience in industrial control

CE certified

ISO 9001, ISO 14001 and ISO 45001 certified

We provide technical support for VFD selection, parameter configuration, system integration, and after-sales service.

Standard VFD models may not always meet the requirements of special industrial projects.

For applications with special voltage, power, control requirements, or system configurations, we can evaluate customized solutions.

Examples include:

• Special input voltage
• Medium-voltage applications
• High-power motor control
• Customized control cabinets
• Bypass systems
• Pump control systems
• PLC integration
• Communication integration
• Industrial automation projects

Please provide the motor nameplate and application information so our engineers can recommend a suitable solution.

The ZF900 series covers 7.5kW to 800kW. Specific voltage and current ratings depend on the selected model.

Yes. The ZF900 can be used for water pumps, irrigation pumps, booster pumps, circulation pumps, and other industrial pumping systems.

Yes. The suitable model should be selected according to the compressor type, motor power, rated current, and starting requirements.

We recommend providing the motor nameplate information, including power, voltage, current, frequency, and application.

Yes. Our engineers can assist with model selection, parameter settings, wiring configuration, and application-related technical questions.

Yes. Customized VFD control cabinets and integrated industrial automation solutions can be provided according to project requirements.

Not sure which VFD model you need?

Send us the following information:

Motor Power:
Motor Voltage:
Motor Current:
Motor Frequency:
Application:
Quantity:
Input Voltage:
Required Output Voltage:

Our engineers can check the application and recommend a suitable VFD model.

Contact ZFENG ELECTRIC for industrial VFD solutions.