Product Overview
The Schneider ATV71HU22N4 Variable Speed Drive is part of the Altivar 71 series, developed for advanced motor control in compact industrial environments. It combines high-performance control algorithms, flexible communication options, and integrated protection features into a small and efficient design.
Unlike basic drives that only provide speed adjustment, this model is designed for applications requiring precise torque control, dynamic response, and system integration. Its ability to adapt to different motor types and application conditions makes it highly versatile in modern automation systems.
From a practical engineering perspective, the ATV71HU22N4 stands out for its balance between compact design and advanced functionality, making it an ideal choice for OEM equipment and space-constrained installations.
Technical Specifications
| Parameter | Specification |
|---|
| Product Type | Variable Speed Drive |
| Model | ATV71HU22N4 |
| Series | Altivar 71 |
| Motor Power | 2.2 kW / 3 hp |
| Input Voltage | 380–480 V AC |
| Phase | 3 Phase |
| Line Current | 8.2 A (380 V) / 7.1 A (480 V) |
| Nominal Output Current | 5.8 A (380 V) / 4.8 A (460 V) |
| Maximum Transient Current | 9.6 A (2 s) / 8.7 A (60 s) |
| Output Frequency | 0.1–599 Hz |
| Switching Frequency | 1–16 kHz Adjustable |
| Communication | Modbus, CANopen |
| EMC Filter | Integrated |
| Protection Rating | IP20 |
| Mounting Type | Panel / Wall Mount |
| Dimensions | 230 × 130 × 175 mm |
| Weight | 3 kg (6.61 lb) |
Optimized Use Cases in Compact Automation Systems
The Schneider ATV71HU22N4 Variable Speed Drive is engineered for compact industrial environments requiring precise motor control and flexible integration. It is commonly applied in:
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Small conveyor and transfer systems
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HVAC fans and pump control units
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Packaging and labeling machines
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Textile and light process equipment
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OEM machinery and modular automation systems
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Light-duty mixers and agitation systems
Its compact size combined with advanced control capabilities makes it especially suitable for control cabinets where space efficiency and performance must coexist.
Functional Advantages for Engineering Deployment
The ATV71HU22N4 integrates advanced drive technology into a small footprint, offering strong performance for both machine builders and plant engineers.
Main advantages
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2.2 kW / 3 hp power rating for small-to-medium industrial motors
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Sensorless flux vector control for stable torque and smooth low-speed operation
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Wide output frequency range (0.1–599 Hz) enabling flexible speed control
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Integrated EMC filter to reduce electromagnetic interference
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Support for Modbus and CANopen communication for system integration
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High overload capability (up to 220%) for demanding start conditions
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Expandable architecture with option cards for I/O and communication flexibility
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User-friendly graphic terminal for commissioning and diagnostics
In practical applications, it delivers consistent motor response and reliable operation while minimizing panel space requirements.
Technical FAQs
1. What motor power is supported?
It is designed for 2.2 kW (3 hp) motors operating on 380–480 V three-phase systems.
2. Does it support vector control?
Yes. It supports both sensorless and encoder-based flux vector control.
3. What is the output frequency range?
The drive operates from 0.1 Hz up to 599 Hz.
4. Is it suitable for compact control panels?
Yes. Its small form factor is specifically designed for space-limited installations.
5. Does it include an EMC filter?
Yes. An integrated EMC filter is included as standard.
6. Can it communicate with PLC systems?
Yes. It supports Modbus and CANopen communication protocols.
7. What overload performance does it provide?
It can deliver up to 170% for 60 seconds and 220% for short-duration peaks.
8. Does it support synchronous motors?
Yes. It supports both synchronous and asynchronous motor control.
9. How does it assist with diagnostics?
It provides real-time monitoring, fault detection, and clear interface feedback.
10. Can it be expanded for additional functions?
Yes. Optional cards allow expansion for communication, I/O, and encoder feedback.
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