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- ATV950U75N4E
- Variable Speed Drive
- France
- 678 × 264 × 330 mm
- 13.7 kg
- Xiamen, China
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Product Overview
The Schneider Electric ATV950U75N4E is a 7.5 kW variable speed drive in the Altivar Process ATV900 series. It controls the speed of synchronous and asynchronous motors in industrial process applications, including pumping systems, ventilation equipment, conveyors, and production machinery. The drive operates from a three-phase 380–480 V AC supply and combines motor-speed regulation with process-monitoring and communication functions.
The ATV950U75N4E includes an integrated braking unit and switch within an IP55 enclosure. The switch-equipped configuration is useful in installations requiring local electrical isolation, while the braking function supports applications where the motor must decelerate within a controlled period. For example, a process pump can adjust its speed in response to changing pressure demand, while a conveyor can use configured acceleration and deceleration ramps to coordinate material movement.
EtherNet/IP, Modbus TCP, and serial Modbus support integration with compatible automation systems. Embedded power measurement and process-monitoring functions also give operators useful information for reviewing energy consumption and investigating changes in equipment operation.
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | Schneider Electric |
| Model | ATV950U75N4E |
| Product Type | Variable Speed Drive |
| Product Series | Altivar Process ATV900 |
| Drive Range | ATV950 |
| Rated Motor Power | 7.5 kW |
| Rated Supply Voltage | 380–480 V AC |
| Number of Supply Phases | 3 phases |
| Compatible Motor Types | Synchronous motors; asynchronous motors |
| Enclosure Protection | IP55 |
| Integrated Braking Unit | Yes |
| Integrated Switch | Yes |
| Communication Protocols | EtherNet/IP, Modbus TCP, Modbus serial |
| Mounting Method | Wall mounting |
| Dimensions | 678 × 264 × 330 mm |
| Weight | 13.7 kg |
Product Features
7.5 kW motor-speed regulation: The drive adjusts motor operation according to the configured speed reference and control mode. This suits process equipment whose operating demand changes throughout the production cycle.
Integrated braking unit: The built-in braking unit supports applications requiring controlled deceleration. A compatible braking resistor may be needed where the load generates significant braking energy or requires frequent stopping.
Switch-equipped enclosure: The integrated switch distinguishes the ATV950U75N4E from the ATV950U75N4. This configuration can simplify local isolation arrangements when incorporated into a correctly specified electrical installation.
IP55 protection: The enclosure protects against dust ingress and water jets within the limits of its rating. Ambient temperature, cable entries, cleaning practices, and exposure to chemicals still need to be considered when selecting the installation location.
Industrial communication: EtherNet/IP, Modbus TCP, and serial Modbus allow the drive to exchange commands and operating data with compatible PLCs and other automation equipment.
Process and energy monitoring: Embedded measurement and monitoring functions help operators review power consumption and operating trends. These functions can assist with process supervision and troubleshooting when operating conditions change.
Working Principle
The ATV950U75N4E converts incoming three-phase AC power into a controlled electrical output for the connected motor. By adjusting output voltage and frequency according to the selected control method, it regulates motor speed to match the machine’s operating requirements.
In a pumping installation, a PLC can calculate a speed reference from pressure or flow feedback. The drive adjusts the motor speed in response, allowing the pump to follow changing process demand rather than running continuously at a fixed speed. Similar control can be applied to fans and other motor-driven equipment where operating load varies.
During deceleration, the motor may return energy to the drive’s DC bus. The integrated braking unit handles braking energy when required, while a suitable braking resistor may be necessary depending on the load inertia, stopping time, and frequency of braking operations.
The drive also exchanges commands and status information with the automation system. This allows the PLC to coordinate motor operation with sensors, valves, production sequences, and other equipment while monitoring drive conditions and responding to faults.
Role in an Altivar Process ATV900 Control Architecture
The ATV950U75N4E operates between the electrical distribution system and the motor-driven machine. It controls motor output according to commands from the control system and supplies operating information for process supervision.
| Control Layer | Function | Relationship to ATV950U75N4E |
|---|---|---|
| Electrical Distribution | Supplies and protects the electrical circuit | Provides the required three-phase supply and upstream protection |
| Variable Speed Drive | Regulates motor speed and deceleration | Adjusts motor output according to configured parameters and references |
| PLC or Process Controller | Executes process logic and machine sequences | Sends run commands and speed references through a supported interface |
| HMI or Operator Panel | Displays operating values, alarms, and status | Presents drive information through the automation system |
| Industrial Communication Network | Exchanges commands and operating data | Uses configured EtherNet/IP, Modbus TCP, or serial Modbus communication |
| Motor | Converts electrical energy into mechanical movement | Operates according to the drive’s commanded output |
| Driven Equipment | Performs the industrial process | Uses motor output for pumping, ventilation, conveying, or machinery movement |
| Braking Circuit | Manages braking energy where required | Uses the integrated braking unit and a compatible resistor when needed |
Industrial Applications
| Application | Operating Requirement | Use of the ATV950U75N4E |
|---|---|---|
| Industrial Pumping | Flow and pressure vary with process demand | Adjusts pump speed according to the control reference |
| Ventilation and Air Handling | Airflow changes with system load | Regulates fan speed to match ventilation requirements |
| Conveyor Systems | Adjustable transport speed and controlled stopping | Coordinates motor operation with production sequences |
| Process Machinery | Motor operation follows changing process conditions | Responds to speed references and operating commands from the controller |
| Material Handling | Controlled acceleration and deceleration | Supports motor-speed regulation for the specified load profile |
| Industrial Utility Systems | Continuous motor operation with operating-data monitoring | Makes drive information available for process supervision |
| Automated Production Lines | Multiple machines must operate in coordination | Exchanges commands and status information with the wider control architecture |
Installation and Maintenance
- Verify the complete model reference: Confirm that the unit is ATV950U75N4E and that the integrated-switch configuration matches the installation requirements.
- Check motor ratings: Compare the motor nameplate voltage, current, power, speed, and motor type with the drive’s ratings before commissioning.
- Confirm the supply conditions: Verify that the three-phase supply is within the specified 380–480 V AC range and that upstream electrical protection is appropriate.
- Provide adequate mounting clearance: Install the drive on a suitable vertical surface and maintain the required clearances for ventilation, wiring access, and maintenance.
- Review the installation environment: Assess ambient temperature, humidity, dust, water exposure, and corrosive substances. IP55 protection should be considered alongside the actual operating environment.
- Select upstream protection: Size circuit protection and disconnecting arrangements according to the electrical installation, available fault current, and applicable regulations.
- Separate power and control wiring: Keep motor power cables away from sensitive signal and communication wiring where practicable. Follow appropriate grounding, shielding, and EMC practices.
- Inspect electrical connections: Check terminal tightness, protective-earth continuity, cable sizing, and motor wiring before energizing the drive.
- Configure motor-control parameters: Enter the motor nameplate data and set the control mode, acceleration and deceleration ramps, speed limits, and current limits for the application.
- Evaluate braking requirements: Determine whether the application requires a braking resistor. If needed, select one according to braking energy, stopping frequency, thermal duty, and drive compatibility.
- Validate communication settings: Configure the selected communication protocol and verify run commands, speed references, feedback values, and fault responses during commissioning.
- Perform scheduled inspections: Check cooling passages, terminals, grounding, cables, enclosure seals, and fault history. Before internal inspection, isolate the supply and verify that the DC bus has discharged to a safe level.
Related Components
| Component | Purpose | Selection Considerations |
|---|---|---|
| Three-Phase AC Supply and Protection | Supplies the drive and protects the electrical circuit | Supply voltage, current capacity, fault level, and protection coordination |
| Synchronous or Asynchronous Motor | Drives the connected machinery | Motor type, rated current, power, speed, and load profile |
| Braking Resistor | Dissipates braking energy when required | Resistance, power rating, braking duty, and drive compatibility |
| PLC or Process Controller | Coordinates motor operation with the process | Control logic, supported communication protocol, and feedback requirements |
| HMI or Operator Panel | Displays operating values and alarms | Interface requirements and compatibility with the control system |
| Industrial Ethernet Switch | Connects networked automation devices | Network topology, port requirements, and industrial environment |
| Motor Cable | Connects the drive output to the motor | Current rating, cable length, insulation, shielding, and EMC requirements |
| EMC Accessories | Helps manage electromagnetic interference | Supply characteristics, cable arrangement, and installation conditions |
Recommended Related Models
| Model | Product Description | Application Context |
|---|---|---|
| ATV950U55N4E | Altivar Process ATV950 Variable Speed Drive, 5.5 kW class | For applications with a lower motor-power requirement and the same switch-equipped configuration |
| ATV950U75N4 | Altivar Process ATV950 Variable Speed Drive, 7.5 kW class | Same nominal power class without the E-suffix switch configuration |
| ATV950D11N4E | Altivar Process ATV950 Variable Speed Drive, 11 kW class | For applications requiring a higher motor-power class with an integrated switch |
| ATV930U75N4 | Altivar Process ATV930 Variable Speed Drive, 7.5 kW class | An alternative within the ATV900 family when the ATV930 feature and enclosure configuration meets the application requirements |
When comparing related models, consider motor current, duty requirements, enclosure protection, braking needs, communication interfaces, and the electrical isolation arrangement. Similar power ratings do not automatically establish direct interchangeability.
Key Advantages
- 7.5 kW motor control: Supports adjustable-speed operation for industrial process equipment.
- Integrated switch and braking unit: Combines motor control with features relevant to isolation arrangements and controlled deceleration.
- Industrial communication: Connects with compatible PLCs and supervisory systems through supported protocols.
- Process monitoring: Helps operators review energy consumption and operating conditions.
- IP55 enclosure: Supports use in a range of industrial environments within the specified protection limits.
Technical FAQs
What is the main difference between ATV950U75N4E and ATV950U75N4?
The ATV950U75N4E includes an integrated switch as well as a braking unit. The ATV950U75N4 has a similar power rating but does not include the E-suffix switch-equipped configuration. The appropriate choice depends on the machine’s electrical arrangement and isolation requirements.
What should be considered when selecting a motor for the ATV950U75N4E?
Check the motor type, rated voltage, current, power, speed range, and load profile. The selected duty rating and configured control mode must match the motor and the machine’s operating requirements.
When is an external braking resistor needed?
A braking resistor may be required when the motor returns significant energy during deceleration or when the machine needs frequent or rapid stopping. Selection depends on load inertia, stopping time, braking frequency, and the drive’s permitted braking arrangement.
How can the ATV950U75N4E be integrated into a PLC-based system?
The drive supports EtherNet/IP, Modbus TCP, and serial Modbus. The protocol, addressing, control mapping, and feedback configuration should match the PLC and the intended machine-control architecture.