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- Schneider
- ATV950U07N4
- Variable Speed Drive
- France
- 678 × 264 × 272 mm
- 10.5 kg
- Xiamen, China
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Product Overview
The Schneider ATV950U07N4 is an Altivar Process ATV900 variable speed drive used for controlling motor-driven equipment in industrial and process applications. It sits between the electrical supply and the motor, converting operating commands and process requirements into controlled motor operation.
Unlike a basic fixed-speed motor starter, a variable speed drive can adjust motor operation according to the requirements of the connected equipment. This makes the ATV950U07N4 suitable for applications where process conditions change during operation, such as pumping, ventilation, material movement, and other continuous-duty machinery.
The drive can operate as part of a larger automation system in which a PLC, process controller, HMI, or supervisory system provides operating commands and receives drive status information. For maintenance or replacement work, the drive should therefore be considered together with the connected motor, control wiring, application parameters, protection equipment, and mechanical load.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Model | ATV950U07N4 |
| Product Type | Altivar Process ATV900 Variable Speed Drive |
| Product Family | Altivar Process |
| Series | ATV900 |
| Drive Function | Variable Speed Motor Control |
| System Role | Process Motor Speed and Torque Control |
| Control Method | Electronic Variable-Frequency Motor Control |
| Application | Industrial and Process Motor Drives |
| Motor Interface | Three-Phase Motor |
| Control Function | Speed, Acceleration and Deceleration Regulation |
| Process Integration | Industrial Process Control System |
| Component Type | Variable Speed Drive |
| Installation | Industrial Motor Control Equipment |
| Dimensions | 678 × 264 × 272 mm |
| Weight | 10.5 kg |
Product Features
- Altivar Process ATV900 platform for industrial and process motor control.
- Regulates motor operation according to machine and process requirements.
- Supports controlled acceleration and deceleration of connected motor-driven equipment.
- Suitable for continuous process applications requiring adjustable motor speed.
- Can be integrated with PLC and supervisory control architectures.
- Supports coordination between drive operation and process-control sequences.
- Provides a controlled electrical interface between the supply and motor.
- Suitable for pumps, fans, conveyors, material-handling equipment, and process machinery.
- Allows drive parameters to be configured for the connected motor and application.
- Provides operating information that can be used for machine monitoring and maintenance.
Working Principle
The ATV950U07N4 receives an operating command and an applicable speed or process reference from the surrounding control system. It then regulates the electrical output supplied to the motor so that the motor operates according to the configured control requirements.
Power Supply → ATV950U07N4 → Controlled Motor Output → Motor → Mechanical Load
During startup, the drive manages the transition from stopped operation toward the commanded operating condition. During normal running, it adjusts motor operation as the reference changes. When the machine requires a controlled stop or reduction in speed, the drive manages the corresponding deceleration process.
In a process-control installation, the drive may also exchange operating information with the higher-level automation system. The controller can use drive status and operating conditions as part of the machine or process sequence, while the HMI can present relevant information to operators.
The complete system response depends on the drive configuration, motor characteristics, process demand, mechanical load, and control commands. A replacement drive should therefore be commissioned as part of the complete motor-control loop rather than treated as an isolated electrical component.
Role in a Schneider Altivar Process ATV900 Control Architecture
The ATV950U07N4 occupies the drive layer of the motor-control architecture. It connects the automation system with the motor and provides the controlled electrical output required by the connected machine.
| System Layer | Typical Component | Function |
|---|---|---|
| Supervisory Layer | HMI / SCADA | Displays process and drive information and provides operator commands |
| Process Control Layer | PLC / Process Controller | Generates process logic, operating commands, and speed references |
| Drive Layer | ATV950U07N4 | Regulates motor electrical output according to configured requirements |
| Motor Layer | Three-Phase Motor | Converts electrical energy into mechanical rotation |
| Mechanical Layer | Coupling / Gearbox / Transmission | Transfers motor rotation to the driven equipment |
| Process Equipment | Pump / Fan / Conveyor / Machinery | Performs the required process function |
| Monitoring Layer | Sensors / Drive Status Signals | Provides operating information for control and monitoring |
Industrial Applications
| Application | Drive Role |
|---|---|
| Pumping Systems | Adjusts motor operation according to changing process flow requirements |
| Industrial Fans | Controls motor speed for process-air and ventilation equipment |
| Water and Wastewater Equipment | Supports adjustable motor operation in pumping and treatment systems |
| Process Machinery | Coordinates motor speed with changing production conditions |
| Conveyor Systems | Controls material transport speed and machine movement |
| Material Handling | Provides adjustable motor operation for handling equipment |
| Manufacturing Equipment | Integrates motor-speed control into automated production processes |
| Continuous Process Plants | Supports motor-driven equipment within larger process-control architectures |
Installation and Maintenance
- Confirm the ATV950U07N4 model and verify that it matches the intended Altivar Process ATV900 application.
- Review the motor nameplate, electrical drawings, process-control documentation, and existing drive configuration before replacement.
- Isolate the incoming electrical supply and follow the approved lockout/tagout procedure before accessing the drive or motor circuit.
- Verify the electrical supply arrangement and associated motor circuit before connecting the replacement drive.
- Inspect the drive, terminals, connectors, cooling areas, and accessible surfaces for damage, contamination, or signs of overheating.
- Check motor power cables, control wiring, communication connections, and grounding arrangements against the approved system drawings.
- Inspect the connected motor and mechanical equipment for abnormal resistance, binding, coupling problems, or other conditions that could affect drive operation.
- Configure or verify the applicable motor, command, speed-reference, and application parameters before enabling the drive.
- Confirm the PLC, HMI, communication, interlock, and control-command signals required for normal operation.
- Perform a controlled initial run and verify motor direction, startup behavior, speed response, and process response.
- Monitor the drive and motor for abnormal faults, vibration, temperature, current behavior, or unexpected acceleration and deceleration.
- Record the final parameters, wiring arrangement, commissioning results, motor information, and maintenance observations for future service work.
Related Components
| Component | Function in the System |
|---|---|
| Three-Phase Motor | Converts controlled electrical power into mechanical rotation |
| Schneider Altivar Process ATV900 Control System | Provides the variable-speed drive platform |
| PLC / Process Controller | Generates process logic and motor-control commands |
| HMI / SCADA | Provides operator control and process-status information |
| Motor Power Cable | Carries controlled electrical output from the drive to the motor |
| Motor Protection Equipment | Provides applicable protection for the motor circuit |
| Process Sensor | Provides process information used by the control system where applicable |
| Mechanical Coupling | Transfers motor rotation to the driven equipment |
| Gearbox | Adapts motor speed and torque to the machine requirements |
| Industrial Control Cabinet | Houses the drive and associated control equipment |
Recommended Related Models
| Model | Product Type | Typical Relationship |
|---|---|---|
| Schneider Altivar Process ATV900 Series | Variable Speed Drive | Same process-drive platform |
| Schneider ATV930 Series | Altivar Process Variable Speed Drive | Related Altivar Process drive family |
| Schneider ATV950 Series | Altivar Process Variable Speed Drive | Same ATV950 drive family |
| Schneider Altivar Process Drives | Industrial Variable Speed Drive | Related process motor-control platform |
| Schneider Altivar Process Control Accessories | Drive Control Hardware | Associated drive-system components |
Key Advantages
- Altivar Process ATV900 platform for industrial and process motor control.
- Supports adjustable motor operation for changing process requirements.
- Integrates with PLC, HMI, SCADA, and process-control architectures.
- Suitable for pumps, fans, conveyors, and continuous process machinery.
- Provides controlled acceleration and deceleration for motor-driven equipment.
- Supports maintenance and replacement of established Altivar Process installations.
Technical FAQs
What is the main function of the ATV950U07N4?
The ATV950U07N4 is a variable speed drive used to regulate the operation of a connected motor. It converts control commands and operating references into controlled motor output for industrial and process equipment.
What should be checked before replacing an ATV950U07N4?
The connected motor, electrical supply, control wiring, communication arrangement, existing drive parameters, process-control signals, mechanical load, and protection equipment should be reviewed before installing a replacement.
How does the drive interact with a process-control system?
The drive operates at the motor-control layer while a PLC, process controller, HMI, or supervisory system can provide commands and use drive operating information. This allows motor operation to be coordinated with the wider process sequence.
What can cause abnormal operation after drive replacement?
Incorrect motor or application parameters, wiring errors, control-reference problems, communication issues, mechanical resistance, motor faults, or active drive protection functions can all affect operation. Troubleshooting should examine the complete path from the control system through the drive and motor to the mechanical process equipment.