Product Introduction
The Schneider ATV71HU55Y Variable Speed Drive is part of the Altivar 71 platform, developed for industrial systems requiring advanced motor control in higher voltage environments. Unlike standard low-voltage drives, this model is designed for installations where electrical stress, load variation, and process stability must be tightly controlled.
Its core value lies in its ability to maintain precise torque and speed regulation under unstable or heavy load conditions. This makes it suitable for continuous industrial processes where downtime or speed variation directly impacts production efficiency.
From an engineering standpoint, the ATV71HU55Y is often selected for its balance of control precision, electrical robustness, and adaptability in complex automation systems.
Technical Specifications
| Parameter | Specification |
|---|
| Product Type | Variable Speed Drive |
| Model | ATV71HU55Y |
| Series | Altivar 71 |
| Motor Power | 5.5 kW |
| Input Voltage | 500–690 V AC |
| Phase | 3 Phase |
| Line Current | 8.6 A at 690 V |
| Output Current | ~7.5 A nominal |
| Output Frequency | 0.1–500 Hz |
| Control Modes | V/F, SFVC, FVC |
| Communication | Modbus, CANopen |
| EMC Filter | Integrated |
| Protection Rating | IP20 |
| Mounting Type | Panel / Wall Mount |
| Dimensions | 420 × 236 × 240 mm |
| Weight | 30 kg (66.14 lb) |
Industrial Application Scope
The Schneider ATV71HU55Y Variable Speed Drive is designed for high-voltage industrial motor control systems where stable torque, precise speed regulation, and robust energy handling are required. It is typically used in:
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Heavy industrial pumping systems
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Large ventilation and HVAC infrastructure
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Process industries (chemical, water, energy)
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Conveyor and material handling systems
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High-inertia mechanical loads
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OEM machinery operating in high-voltage networks
This model belongs to the Altivar 71 series and is optimized for complex, high-power machine environments where process stability is critical.
Engineering Performance Advantages
The ATV71HU55Y is engineered for demanding industrial conditions, especially in higher voltage installations (500–690 V class). It combines advanced motor control with strong electrical robustness.
Key advantages
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5.5 kW rated motor power (high-voltage class up to 690 V)
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Sensorless and closed-loop flux vector control (SFVC / FVC) for precise torque regulation
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Wide output frequency range (0.1–500 Hz) for flexible process control
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Integrated EMC filter to reduce electrical noise and improve system compatibility
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High overload capability (up to 170%–220% depending on mode) for demanding startup conditions
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Supports synchronous and asynchronous motors for flexible system design
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ENA energy adaptation system for unstable or unbalanced loads
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Modbus and CANopen communication support for automation integration
In real industrial deployment, this drive is valued for maintaining stable motor performance under fluctuating torque demand and long-duty operation cycles.
Technical FAQs
1. What voltage range does it support?
It operates in the 500–690 V three-phase industrial power range.
2. What motor power is it rated for?
It supports approximately 5.5 kW motor loads depending on configuration.
3. Does it support vector control?
Yes, it supports sensorless flux vector control and closed-loop vector control.
4. What is the output frequency range?
The drive operates from 0.1 Hz up to 500 Hz.
5. Is EMC protection integrated?
Yes, it includes a built-in EMC filter for noise suppression.
6. Can it handle high starting torque?
Yes, it supports high transient overload (up to 220% for short duration).
7. Does it support different motor types?
Yes, it supports both synchronous and asynchronous motors.
8. What communication protocols are available?
It supports Modbus and CANopen, with expansion options for fieldbus systems.
9. Is it suitable for harsh industrial environments?
Yes, it is designed for complex and high-power industrial applications.
10. How is it typically configured?
Through graphical terminal tools and software-based commissioning utilities.
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