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- Schneider
- ATV950D11N4
- Variable Speed Drive
- France
- 264 x 678 x 299 mm
- 13.7 kg
- Xiamen, China
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Product Overview
In modern industrial automation systems, variable speed drives play an important role in improving motor efficiency, optimizing production processes, and ensuring stable equipment operation. By controlling motor speed, torque, acceleration, and braking performance, industrial drives help reduce energy consumption, improve process control, and extend equipment service life.
The Schneider ATV950D11N4 Variable Speed Drive is an industrial AC drive from the Altivar Process ATV950 series, designed for demanding motor control applications. It provides reliable speed regulation, integrated protection functions, advanced monitoring capability, and flexible communication options for industrial automation environments.
The ATV950D11N4 is designed for applications requiring accurate motor control and continuous operation. It is widely used in industrial pumps, fans, conveyors, processing equipment, HVAC systems, and manufacturing automation applications.
With dimensions of 264 × 678 × 299 mm and a weight of 13.7 kg, the Schneider ATV950D11N4 features a compact industrial structure suitable for wall mounting and electrical cabinet installation.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | Schneider Electric |
| Model | ATV950D11N4 |
| Product Series | Altivar Process ATV950 |
| Product Type | Variable Speed Drive |
| Application | Industrial Motor Control |
| Rated Power | 11 kW |
| Input Voltage | 380–480 VAC |
| Phase | Three Phase |
| Output Current | 23.5 A |
| Heavy Duty Current | 16.5 A |
| Motor Type | Asynchronous and Synchronous Motors |
| Braking Function | Integrated Braking Unit |
| Protection Rating | IP55 |
| Cooling Method | Forced Air Cooling |
| Mounting Type | Wall Mount |
| Communication Capability | Industrial Network Integration |
| Dimensions | 264 × 678 × 299 mm |
| Weight | 13.7 kg |
Function and Working Principle
The Schneider ATV950D11N4 Variable Speed Drive controls motor operation by converting fixed AC power into adjustable frequency and voltage output.
The basic operating process is:
AC Input Power → Rectifier Circuit → DC Bus → Inverter Circuit → Motor Output
The working principle includes:
- Three-phase AC power enters the drive input section.
- The rectifier converts AC power into DC power.
- The DC bus stabilizes electrical energy.
- The inverter produces adjustable frequency AC output.
- The motor receives controlled power according to operating requirements.
By adjusting output frequency and voltage, the drive controls motor speed and torque while maintaining efficient operation.
Role in Industrial Automation Systems
The Schneider ATV950D11N4 Variable Speed Drive is an important component in industrial automation and process control systems.
Its main functions include:
- Variable motor speed regulation
- Energy efficiency optimization
- Motor protection
- Process control improvement
- Fault monitoring
- Automation system integration
Typical applications include:
- Industrial pumping systems
- Cooling and ventilation equipment
- Conveyor systems
- Water treatment equipment
- Manufacturing machinery
- Process automation systems
Main Features
11 kW Industrial Motor Control Capability
The ATV950D11N4 provides reliable motor control performance for medium-power industrial applications.
Advantages include:
- Stable speed regulation
- Accurate torque control
- Smooth motor acceleration
- Reduced mechanical stress
It helps maintain consistent equipment performance during changing operating conditions.
Advanced Process Control Functions
The Altivar Process ATV950 series is designed for industrial process applications requiring intelligent monitoring and control.
Key advantages include:
- Real-time operating monitoring
- Improved process visibility
- Enhanced equipment management
- Better system efficiency
These functions help operators optimize industrial processes and reduce downtime.
Integrated Braking Function
The built-in braking unit improves performance in applications requiring frequent stopping and acceleration changes.
Benefits include:
- Faster deceleration
- Improved control of high-inertia loads
- Better machine response
- Enhanced operating stability
IP55 Protection Design
The ATV950D11N4 features an IP55 protection structure suitable for industrial environments.
Advantages include:
- Protection against dust
- Resistance to industrial conditions
- Flexible installation possibilities
- Improved equipment reliability
It is suitable for applications requiring additional environmental protection.
Flexible Communication Integration
The drive supports connection with industrial automation systems.
Benefits include:
- Simplified system integration
- Improved data exchange
- Easier monitoring and control
- Flexible automation configuration
It can be integrated with PLC systems, HMIs, and industrial networks.
Industrial Applications
Pump Systems
Variable speed drives are widely used in industrial pumping applications.
Typical applications include:
- Water treatment systems
- Process pumps
- Cooling circulation systems
- Industrial fluid control
The ATV950D11N4 adjusts motor speed according to actual process requirements, improving efficiency and reducing unnecessary energy consumption.
Fan and Ventilation Systems
Industrial ventilation requires reliable motor speed control.
Applications include:
- Factory ventilation
- Cooling fans
- Air handling systems
- Exhaust equipment
The drive helps maintain stable airflow while improving energy efficiency.
Conveyor Systems
Conveyor equipment requires accurate speed control and smooth operation.
Applications include:
- Manufacturing production lines
- Packaging systems
- Material handling equipment
- Automated logistics systems
The ATV950D11N4 provides stable motor control for continuous operation.
Industrial Processing Equipment
The drive is suitable for various process automation applications.
Applications include:
- Mixing equipment
- Processing machinery
- Production equipment
- Automated industrial systems
It improves machine performance through accurate motor control.
Installation Guide
Step 1: Check Installation Environment
Before installation, verify:
- Available mounting space
- Ambient temperature
- Ventilation conditions
- Environmental requirements
Step 2: Install the Drive
Mount the Schneider ATV950D11N4 securely.
Ensure:
- Correct vertical mounting position
- Proper clearance around the unit
- Stable mechanical fixing
Step 3: Connect Power Supply
Connect:
- Three-phase AC input
- Motor output terminals
- Ground connection
Check all electrical connections before startup.
Step 4: Connect Control Wiring
Connect:
- Start/stop signals
- Speed reference input
- Digital I/O
- Communication cables
Step 5: Configure Parameters
Configure:
- Motor rated voltage
- Motor current
- Motor power
- Frequency range
- Acceleration time
- Deceleration time
- Control mode
Proper parameter configuration ensures reliable operation.
Step 6: Perform Commissioning
After installation:
- Power on the drive
- Check operating status
- Verify motor rotation
- Test speed control functions
Common Failure Symptoms
| Fault Symptom | Possible Cause |
|---|---|
| Drive cannot start | Power supply problem |
| Motor speed fluctuation | Incorrect parameters |
| Overcurrent alarm | Excessive motor load |
| Overheating fault | Poor ventilation |
| Communication failure | Network wiring problem |
| Motor abnormal operation | Incorrect configuration |
Troubleshooting Recommendations
Check Input Power
Inspect:
- Supply voltage
- Power terminals
- Circuit protection devices
Incorrect power conditions may prevent normal operation.
Verify Motor Parameters
Check:
- Motor voltage
- Motor current
- Frequency settings
- Control mode
Incorrect settings may affect motor performance.
Inspect Cooling System
Check:
- Cooling fan operation
- Air circulation
- Installation environment
Poor heat dissipation may trigger protection functions.
Check Communication Connections
Inspect:
- Communication cables
- Network settings
- Control terminals
Loose connections may cause unstable communication.
Maintenance Recommendations
To maintain reliable operation of the Schneider ATV950D11N4 Variable Speed Drive:
- Clean the drive regularly
- Inspect cooling components
- Check electrical connections
- Monitor fault records
- Verify operating parameters
- Perform preventive maintenance
Regular maintenance improves system reliability and extends equipment service life.
Compatible System Components
| Component | Function |
|---|---|
| ATV950 Variable Speed Drive | Controls motor operation |
| PLC Controller | Provides automation commands |
| HMI Panel | Displays operating information |
| Sensors | Provides process feedback |
| Industrial Network | Transfers control data |
Key Advantages
- 11 kW industrial motor control capability
- 23.5A output current
- IP55 protection design
- Integrated braking unit
- Advanced monitoring functions
- Flexible automation integration
- Reliable industrial performance
Technical FAQs
What is Schneider ATV950D11N4 used for?
The Schneider ATV950D11N4 Variable Speed Drive is used for industrial motor speed control, process optimization, and automation applications.
What series does ATV950D11N4 belong to?
It belongs to the Schneider Altivar Process ATV950 series.
What is the rated power of ATV950D11N4?
The rated motor power is 11 kW.
What is the output current rating?
The output current rating is 23.5 A.
What are the dimensions of Schneider ATV950D11N4?
The dimensions are 264 × 678 × 299 mm.
What is the weight of Schneider ATV950D11N4?
The weight is 13.7 kg.
Conclusion
The Schneider ATV950D11N4 Variable Speed Drive is a reliable industrial motor control solution designed for demanding automation and process applications.
With 11 kW power capability, IP55 protection, integrated braking functionality, advanced monitoring features, and flexible system integration, it provides stable performance for pumps, fans, conveyors, processing equipment, and industrial machinery.
For automation engineers, system integrators, and maintenance professionals, the Schneider ATV950D11N4 offers an efficient solution for motor control optimization, equipment upgrades, and long-term industrial automation operation.