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- Schneider
- ATV950U15N4
- Variable Speed Drive
- France
- 678 × 264 × 272 mm
- 10.5 kg
- Xiamen, China
- New & In Stock
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Product Overview
The Schneider ATV950U15N4 is an Altivar Process ATV900 variable speed drive used to regulate motor-driven equipment in industrial and process-control installations. It forms the electrical control stage between the power supply and the connected motor, allowing motor operation to be adjusted according to machine commands and process requirements.
The drive is suited to applications where motor speed needs to change during normal operation rather than remain at a fixed level. In a process plant, for example, pumping demand can vary with production conditions, while fans, conveyors, and other rotating equipment may require controlled acceleration, deceleration, and operating-speed adjustment.
The ATV950U15N4 can be incorporated into a larger automation architecture with a PLC or process controller, HMI or SCADA system, motor protection equipment, and mechanical transmission. For replacement work, the drive should be evaluated together with the existing motor and control arrangement so that parameters, command sources, wiring, and machine behavior remain consistent after commissioning.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Model | ATV950U15N4 |
| 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 motor-driven equipment.
- Suitable for process applications where motor speed changes with operating demand.
- Integrates into PLC, HMI, SCADA, and process-control architectures.
- Supports coordinated operation between the motor drive and higher-level control system.
- Provides a controlled electrical interface between the power supply and connected motor.
- Suitable for pumping, ventilation, conveying, and other industrial motor applications.
- Allows applicable drive and motor parameters to be configured for the installation.
- Provides operating and status information for system monitoring and maintenance.
Working Principle
The ATV950U15N4 receives a motor-control command and an applicable speed or process reference from the surrounding automation system. It regulates the electrical output delivered to the motor so that the motor follows the configured operating requirements.
Power Supply → ATV950U15N4 → Controlled Motor Output → Motor → Mechanical Load
During startup, the drive controls the transition from stopped operation toward the commanded running condition. During operation, it adjusts motor behavior as the active reference changes. When a controlled stop or speed reduction is required, the drive manages the corresponding deceleration process.
Within an automated process, a PLC or process controller can coordinate the drive with other equipment and operating sequences. An HMI or SCADA system can provide operator access to applicable commands and display drive status, while process sensors can supply information used by the overall control strategy.
The actual response of the machine depends on the complete system rather than the drive alone. Motor characteristics, configured parameters, load inertia, transmission components, process demand, and control signals all affect how the motor accelerates, runs, and stops. These factors should be checked during commissioning and troubleshooting.
Role in a Schneider Altivar Process ATV900 Control Architecture
The ATV950U15N4 occupies the drive layer between the process-control system and the motor. It translates control requirements into regulated electrical output while operating as part of the wider industrial automation system.
| System Layer | Typical Component | Function |
|---|---|---|
| Supervisory Layer | HMI / SCADA | Provides operator commands and displays process and drive information |
| Process Control Layer | PLC / Process Controller | Executes process logic and generates motor-control references |
| Drive Layer | ATV950U15N4 | Regulates electrical power supplied to the motor |
| Motor Layer | Three-Phase Motor | Converts electrical power into mechanical rotation |
| Mechanical Layer | Coupling / Gearbox / Transmission | Transfers motor movement to the driven equipment |
| Process Equipment | Pump / Fan / Conveyor / Machinery | Performs the required industrial process |
| 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 flow and process demand |
| Industrial Fans | Regulates motor speed for ventilation and process-air equipment |
| Water and Wastewater Equipment | Supports adjustable motor operation in pumping and treatment processes |
| Conveyor Systems | Controls material transport speed during automated operation |
| Material Handling | Regulates motor-driven transfer and handling equipment |
| Process Machinery | Coordinates motor operation with changing production conditions |
| Manufacturing Equipment | Integrates variable-speed motor control into automated production |
| Continuous Process Plants | Supports controlled motor operation within larger process-control systems |
Installation and Maintenance
- Confirm the ATV950U15N4 model and verify that it matches the intended Altivar Process ATV900 application.
- Review the motor nameplate, electrical schematics, process-control drawings, and existing drive configuration before installation.
- Isolate the incoming power and follow the approved lockout/tagout procedure before accessing the drive or motor circuit.
- Verify the electrical supply arrangement and connected motor circuit before wiring the replacement drive.
- Inspect the drive enclosure, terminals, connectors, cooling areas, and accessible surfaces for damage, contamination, or signs of overheating.
- Check motor power cables, control wiring, communication connections, and grounding against the approved electrical documentation.
- Inspect the motor, coupling, gearbox, and driven mechanism for binding, excessive resistance, or other mechanical conditions that could affect operation.
- Verify the applicable motor, command, speed-reference, and application parameters before enabling the drive.
- Confirm PLC, HMI, SCADA, communication, interlock, and start/stop signals required for normal operation.
- Perform a controlled initial run and verify motor direction, startup behavior, speed response, and basic process response.
- Monitor the drive and motor for faults, abnormal vibration, temperature increase, unusual current behavior, or unexpected acceleration and deceleration.
- Record the final parameters, wiring configuration, 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 motor-control 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 machine requirements |
| Industrial Control Cabinet | Houses the drive and associated electrical control equipment |
Recommended Related Models
| Model | Product Type | Typical Relationship |
|---|---|---|
| Schneider Altivar Process ATV900 Series | Variable Speed Drive | Same process-drive platform |
| Schneider ATV950U07N4 | Altivar Process ATV900 Variable Speed Drive | Related ATV950 drive model |
| Schneider ATV950U07N4E | Altivar Process ATV900 Variable Speed Drive | Related ATV950 drive model |
| Schneider ATV950 Series | Altivar Process Variable Speed Drive | Same ATV950 drive family |
| Schneider ATV930 Series | Altivar Process Variable Speed Drive | Related ATV900-family drive series |
Key Advantages
- Altivar Process ATV900 platform for industrial and process motor control.
- Supports adjustable motor operation as process requirements change.
- 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.
- Suitable for maintenance, replacement, and retrofit work on established Altivar Process systems.
Technical FAQs
What is the main function of the ATV950U15N4?
The ATV950U15N4 is a variable speed drive used to regulate the operation of a connected motor. It receives control references and produces controlled motor output for industrial and process equipment.
What should be checked before replacing this drive?
The connected motor, electrical supply, control wiring, communication arrangement, existing parameters, process-control signals, mechanical load, and protection equipment should be reviewed before replacement.
How does the ATV950U15N4 interact with a PLC or process controller?
The drive operates at the motor-control layer while the PLC or process controller can generate operating commands and speed references. Drive status can also be incorporated into the wider machine or process sequence.
What can cause unexpected motor behavior after commissioning?
Incorrect parameters, unsuitable speed references, wiring errors, communication problems, mechanical resistance, motor faults, or active drive protection functions can affect operation. Troubleshooting should examine the controller, drive, motor, and driven equipment as one system.