Invertitore Schneider ATV71HU55N4Z

Panoramica: The ATV71HU55N4Z is a general-purpose inverter of Schneider‘s Altivar 71 serie, with a rating of 5.5kW/7.5HP, compatible with 380-480V three-phase power supply. It features a built-in EMC filter and Modbus/CANopen communication, without a graphic terminal, and is suitable for constant torque loads. This model has been discontinued, and the ATV340 or ATV930 series are recommended as replacements.

1. Interpretazione completa del modello

2. Parametri tecnici fondamentali

3. Caratteristiche del prodotto & Vantaggi
4. High Dynamic Performance: Achieves 100% rated torque at zero speed (150% coppia nominale) output under closed-loop vector control, suitable for high-demand scenarios such as hoisting and lifting.
5. Comprehensive Safety Integration: Standard STO (Coppia di sicurezza disattivata) funzione, no additional modules required for safety circuit construction.
6. Flexible Communication Expansion: Plug-in communication cards compatible with mainstream industrial fieldbuses, enabling seamless interconnection with Siemens, Rockwell, Omron PLCs.
7. Robust and Durable Design: Standard coating for resistance to harsh industrial environments, with comprehensive protection mechanisms for over-temperature, over-voltage, over-load, ecc.
8. Funzionamento facile & Manutenzione: Optional graphic terminal, “Inizio facile” menu, parameter protection, and intuitive fault diagnosis.
9. Scenari applicativi tipici

The ATV71 series is designed exclusively for constant torque loads. Typical applications of ATV71HU55N4Z include:

Hoisting and lifting equipment (crane, elevator, winch)

Material conveying systems (belt conveyor, chain conveyor)

Macchine per l'imballaggio, macchine per la lavorazione del legno, wood-based panel equipment

Process control equipment, miscelatori, compressors and other constant torque loads

Start-up and speed control of high-inertia loads

5. Interruzione & Soluzioni sostitutive

The ATV71 series has been discontinued, and Schneider officially recommends the following replacement paths:

5.1 Sostituzioni originali Schneider

Prima scelta: ATV340U55N4 (5.5kW, 380-480V, EMC integrata, Modbus/CANopen)

Heavy-Duty/Complex Applications: ATV930U55N4 (higher performance and richer functions)

Note sulla sostituzione della chiave: Match power, voltaggio, control mode, communication requirements, safety functions and installation method.

5.2 Raccomandazioni per la sostituzione tra marchi diversi

6. Selezione & Note di sostituzione
7. Carica la corrispondenza del tipo: Confirm the load is constant torque; for variable torque loads (fans/water pumps), economical series such as ATV610 are recommended.
8. Compatibilità degli accessori: Original ATV71 I/O expansion cards, encoder interface cards, ecc., may need to be replaced with models adapted to the new series.
9. Parameter Migration: Use Schneider’s parameter conversion tool to ensure correct migration of key parameters (per esempio., tempo di accelerazione/decelerazione, torque limit, PID parameters).
10. Funzioni di sicurezza: The STO function of the new series needs to be reconfigured to meet the safety class requirements of the original system.
11. Spazio di installazione: The dimensions of ATV340/ATV930 are slightly different from ATV71; confirm the installation space is compatible.

Schneider ATV71HU55N4Z Replacement Models

Panoramica: The ATV340U55N4 (general/economical) is the first choice for original factory replacement, and ATV930U55N4 (high-performance/full-function) is for heavy-duty/complex applications; cross-brand options include 5.5kW models of the same specification such as Siemens MM440, ABB ACS550, Mitsubishi FR-A840, and Rockwell PowerFlex 525.

1. Official Original Factory Replacement Solutions (Schneider Recommended)

The ATV71 series has been discontinued, and Schneider officially provides two core replacement paths:

1.1 Standard Replacement (Prima scelta): ATV340U55N4 (Altivar Machine Series)

Scenari applicabili: Constant torque loads such as general machinery, material conveying, and packaging equipment, pursuing a balance between cost performance and functions.

1.2 High-Performance Replacement: ATV930U55N4 (Altivar Process Series)

Scenari applicabili: High-demand applications such as hoisting, lifting and high-precision positioning, requiring advanced safety functions and communication capabilities.

1.3 Sostituzioni per applicazioni speciali

Fan/Water Pump Applications: ATV610U55N4 (Altivar Process Series, optimized for variable torque, maggiore efficienza energetica)

Explosion-Proof Environment: ATV340U55N4 + explosion-proof enclosure (certification required)

Ultra-Compact Installation: ATV320U55N4 (disegno miniaturizzato, simplified function version)

2. Cross-Brand Replacement Model Recommendations (5.5kW/380-480V, Same Specification)

3. Note sulla sostituzione della chiave

3.1 Carica la corrispondenza del tipo

Confirm the original load is constant torque (the design target of ATV71); for variable torque loads (fans/water pumps), it is recommended to use the ATV610 series for higher efficiency.

For heavy-duty applications (per esempio., hoisting), ATV930 or heavy-duty inverters of other brands must be selected to ensure 150% torque output capacity.

3.2 Key Parameter Migration Points

Key parameters: Acceleration/deceleration time, torque limit, PID parameters, motor nameplate data (must be re-entered).

Communication settings: Modbus address, baud rate and data format must be consistent with the original system.

Funzioni di sicurezza: STO parameters need to be reconfigured to meet the safety class requirements of the original system (ISO 13849 PL e).

3.3 Hardware Compatibility

Dimensioni di installazione: ATV340 is slightly smaller and ATV930 is slightly larger than ATV71; confirm the installation space is compatible.

Disposizione del terminale: The terminal positions of the new series have changed, requiring rewiring.

Accessory Adaptation: Original ATV71 I/O expansion cards and communication cards cannot be directly used for ATV340/930 and need to be replaced with corresponding models.

3.4 Utilization of Function Upgrades

ATV340/930 are equipped with a standard encoder interface (optional for ATV71), enabling higher precision control.

The new series supports industrial Ethernet such as EtherNet/IP, facilitating system upgrade to Industry 4.0.

Enhanced diagnostic functions can early warn of faults and reduce downtime.

4. Recommended Replacement Implementation Steps

4.1 Preparations

Record all parameters of the original ATV71 (backup with Schneider SoMove software is recommended).

Confirm motor nameplate data (energia, voltaggio, attuale, velocità, numero di poli).

Evaluate load characteristics (coppia costante/coppia variabile, starting torque requirements, braking needs).

4.2 Selection Confirmation

Select ATV340 or ATV930 series according to the application scenario.

Confirm accessory requirements (communication expansion card, brake resistor, filter, ecc.).

4.3 Installazione & Messa in servizio

Install the new inverter with power off and ensure correct wiring (pay special attention to phase sequence).

Enter motor parameters and perform auto-tuning (mandatory step).

Migrate key control parameters and test basic operation.

Verify communication connection and safety functions.

Conduct load test and adjust parameters to the optimal state.