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- Schneider
- ATV950D90N4
- Variable Speed Drive
- France
- 345 x 1250 x 375 mm
- 87.7 kg
- Xiamen, China
- New & In Stock
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Product Overview
In modern industrial automation environments, high-power motor control is a critical factor in improving production efficiency, reducing energy consumption, and maintaining reliable equipment operation. Variable speed drives provide precise control of motor speed, torque, and acceleration by regulating output frequency and voltage, allowing industrial machines to adapt to different operating conditions.
The Schneider ATV950D90N4 Variable Speed Drive is a high-performance industrial AC drive designed for heavy-duty motor control applications. It provides reliable speed regulation, advanced protection functions, and efficient energy management for large industrial equipment.
As part of the Schneider Altivar Process ATV900 series, the ATV950D90N4 is engineered for demanding industrial environments requiring continuous operation, accurate motor control, and integration with automation systems. It is widely used in applications such as pumps, fans, compressors, conveyors, and large process machinery.
With dimensions of 345 × 1250 × 375 mm and a weight of 87.7 kg, the Schneider ATV950D90N4 Variable Speed Drive features a robust industrial design suitable for large electrical cabinets and high-power automation installations.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | Schneider Electric |
| Model | ATV950D90N4 |
| Product Type | Variable Speed Drive |
| Series | Altivar Process ATV900 Series |
| Application | Industrial AC Motor Control |
| Function | Variable Frequency Speed Regulation |
| Installation Type | Cabinet Mounting |
| Control Technology | AC Drive Control |
| Dimensions | 345 × 1250 × 375 mm |
| Weight | 87.7 kg |
Function and Working Principle
The Schneider ATV950D90N4 Variable Speed Drive controls high-power AC motors by converting fixed-frequency electrical power into adjustable-frequency output power.
The operating process is:
AC Power Input → Rectifier Conversion → DC Intermediate Circuit → Inverter Control → Adjustable Motor Output
Working principle:
- Receives three-phase AC power from the industrial power system.
- Converts AC input into DC voltage through the rectifier circuit.
- Filters and stabilizes the DC intermediate circuit.
- Converts DC power into adjustable-frequency AC output using inverter technology.
- Controls motor speed, torque, and acceleration according to automation requirements.
This technology enables efficient motor operation, reduces unnecessary energy consumption, and improves process stability.
Role in Industrial Automation Systems
The Schneider ATV950D90N4 is an important component in large industrial automation and process control systems.
Main functions include:
- High-power motor speed regulation
- Torque control
- Energy optimization
- Motor protection
- Process automation integration
- Equipment performance improvement
Typical applications include:
- Industrial pump stations
- Large ventilation systems
- Compressors
- Conveyor systems
- Manufacturing equipment
- Process industry machinery
Main Features
High-Power Motor Control Performance
The ATV950D90N4 is designed for applications requiring stable control of large AC motors.
Advantages:
- Accurate speed regulation
- Reliable torque management
- Smooth acceleration and deceleration
- Improved process control
Energy Saving Operation
Variable frequency control allows motors to operate according to actual process demand.
Benefits:
- Reduced energy consumption
- Lower operating costs
- Improved equipment efficiency
- Reduced mechanical stress
Advanced Protection Functions
The drive provides comprehensive monitoring and protection features for industrial operation.
Protection functions include:
- Overcurrent protection
- Overvoltage protection
- Motor overload protection
- Thermal monitoring
- Fault diagnostics
These functions help protect the drive and connected motor equipment from abnormal operating conditions.
Heavy-Duty Industrial Construction
With dimensions of 345 × 1250 × 375 mm and a weight of 87.7 kg, the ATV950D90N4 is designed for demanding industrial installations.
Advantages:
- Strong mechanical structure
- Suitable for large control cabinets
- Reliable continuous operation
- Designed for heavy industrial applications
Industrial Applications
Pumping System Control
Large industrial pumps require accurate speed control to maintain stable flow and pressure.
Applications include:
- Water treatment facilities
- Cooling systems
- Chemical processing
- Industrial fluid transport
The ATV950D90N4 helps improve pump efficiency and maintain stable system operation.
Industrial Fan Systems
The drive provides efficient control for large ventilation equipment.
Applications include:
- Factory ventilation
- HVAC systems
- Air handling equipment
- Environmental control systems
Compressor Applications
High-power compressors require reliable speed and torque management.
Applications include:
- Manufacturing plants
- Energy facilities
- Process industries
- Gas handling systems
Heavy Machinery and Conveyor Systems
The ATV950D90N4 supports accurate control of large mechanical equipment.
Applications include:
- Automated production lines
- Material handling systems
- Mining equipment
- Industrial machinery
Installation Guide
Step 1: Verify System Requirements
Before installation, confirm:
- Correct drive model
- Motor power requirements
- Input voltage conditions
- Cabinet dimensions
- Installation environment
Ensure the drive is suitable for the intended application.
Step 2: Prepare Installation Environment
Check:
- Mounting structure
- Ventilation clearance
- Cooling conditions
- Cable routing space
Proper installation improves reliability and service life.
Step 3: Connect Electrical Wiring
Connect:
- Main power input
- Motor output terminals
- Grounding connection
- Control signal wiring
Ensure all electrical connections are secure.
Step 4: Configure Drive Parameters
Set important parameters:
- Motor voltage
- Motor current
- Motor frequency
- Acceleration time
- Deceleration time
- Control mode
Correct configuration ensures efficient motor operation.
Step 5: Perform Commissioning
After installation:
- Power on the drive
- Check operating status
- Test motor rotation
- Verify speed control
- Confirm protection functions
Common Failure Symptoms
| Fault Symptom | Possible Cause |
|---|---|
| Drive cannot start | Power supply or control fault |
| Motor speed instability | Incorrect parameters |
| Overcurrent alarm | Excessive motor load |
| Overtemperature warning | Cooling system problem |
| Communication fault | Network configuration issue |
Troubleshooting Guide
Check Power Supply
Inspect:
- Input voltage
- Circuit protection
- Power connections
Incorrect power conditions may prevent proper startup.
Verify Motor Parameters
Check:
- Motor nameplate data
- Drive configuration
- Control mode settings
Incorrect parameters may result in unstable motor performance.
Inspect Cooling System
Check:
- Cooling fans
- Airflow paths
- Cabinet temperature
Insufficient cooling may trigger protective shutdown.
Check Communication System
Verify:
- Communication cables
- Network parameters
- PLC control signals
Communication problems may affect automated operation.
Maintenance Recommendations
To maintain reliable performance of the Schneider ATV950D90N4 Variable Speed Drive:
- Keep electrical cabinets clean
- Inspect cooling fans regularly
- Check electrical terminals
- Monitor operating temperature
- Review fault records
- Perform preventive maintenance
Regular maintenance helps reduce downtime and extend equipment service life.
Compatible Automation Components
| Component | Function |
|---|---|
| Variable Speed Drive | Controls motor speed and torque |
| PLC Controller | Provides automation logic |
| HMI System | Operator monitoring and control |
| AC Motor | Converts electrical energy into mechanical motion |
| Industrial Communication Network | Enables system integration |
Key Advantages
- High-performance AC motor control
- Precise speed and torque regulation
- Improved energy efficiency
- Reliable protection functions
- Robust industrial construction
- Suitable for large-scale automation systems
Technical FAQs
What is Schneider ATV950D90N4 used for?
The Schneider ATV950D90N4 Variable Speed Drive is used for controlling high-power AC motors in industrial automation and process applications.
What is the main function of this drive?
It controls motor speed, torque, and energy consumption by adjusting output frequency and voltage.
Where is it commonly installed?
It is typically installed in large industrial electrical cabinets and automation systems.
What are the dimensions?
The dimensions are 345 × 1250 × 375 mm.
What is the weight?
The weight is 87.7 kg.
Why are high-power variable speed drives important?
High-power variable speed drives improve motor efficiency, optimize industrial processes, reduce energy waste, and support reliable long-term operation.
Conclusion
The Schneider ATV950D90N4 Variable Speed Drive is a powerful industrial motor control solution designed for large-scale automation and process industries.
With advanced speed regulation, efficient energy management, and comprehensive protection features, it helps industries improve production efficiency, reduce operational costs, and maintain stable equipment performance.
For automation engineers, system integrators, and maintenance professionals, the ATV950D90N4 provides a dependable solution for high-power motor control, industrial process optimization, and continuous automation operation.