Schneider Altivar 71 Convertisseur de fréquence modèle ATV71HC28N4(Z)

Complete Model Interpretation

1. Paramètres techniques de base

III. Caractéristiques principales du produit

1. High Torque Performance: Specifically designed for constant torque loads, with a starting torque of up to 150% of the rated torque, ideal for equipment requiring stable torque output such as cranes, ascenseurs, and conveyor belts
2. Flexible Control Functions: Prise en charge 8 preset speeds, Régulateur PID, and brake control logic to meet complex motion control requirements
3. Integrated Communication Capability: Built-in Modbus and CANopen communication interfaces; support for industrial networks such as Profibus and Ethernet via expansion cards
4. Comprehensive Protection Mechanism: Equipped with full protection functions including overcurrent, surtension, sous-tension, surchauffe, court-circuit, et protection contre les défauts à la terre, effectively safeguarding the frequency converter and motor
5. Entretien facile: Built-in diagnostic functions for quick fault location; modular design facilitates repair and component replacement
6. Application Scenarios and Compatible Equipment
7. Main Application Fields:

Hoisting Machinery: Bridge cranes, tower cranes, port cranes, etc..

Équipement de levage: Ascenseurs, escaliers mécaniques, mine hoists, etc..

Manutention des matériaux: Convoyeurs à bande, bucket elevators, convoyeurs à vis, etc..

Other High-torque Equipment: Machines d'emballage, machines à bois, high-inertia load equipment

2. Ne convient pas pour:

Light-load or fan/pump type variable torque applications (the ATV71D series is recommended)

Unprotected outdoor installation (additional protective enclosures are required)

Scenarios requiring frequent braking (external braking units need to be configured separately)

1. Key Selection and Usage Precautions
2. Différenciation des modèles:

ATV71HC28N4: Equipped with a basic operation panel, pas de terminal graphique

ATV71HC28N4Z: Explicitly marked without a graphic terminal, with the same configuration as the above model

ATV71HD28N4: Constant torque version with a graphic terminal

2. Exigences d'installation:

Must be installed inside an electrical control cabinet with IP20 protection class

Sufficient heat dissipation space must be reserved (more than 100mm on all sides: haut, bas, left and right)

An input reactor is recommended on the input side to reduce harmonic interference

3. Accessory Purchase:

Graphic Display Terminal: VW3A1101 (applicable to models without the Z identifier)

Unité de freinage: VW3A3520 (applicable to scenarios requiring frequent braking)

Communication Expansion Cards: VW3A3306 (Profibus-DP), VW3A3310 (Ethernet), etc..

1. Product Status Description

This model was discontinued on March 31, 2020. Schneider recommends the ATV930 series as a replacement product (model ATV930C28N4Z), which features more advanced control algorithms, higher energy efficiency, and more comprehensive communication functions.

Installation, Wiring Guide and Troubleshooting Manual for Schneider ATV71HC28N4(Z) Frequency Converter

1. Key Installation Guidelines

1.1 Préparation avant l'installation

Safety Prerequisites: Only operated by certified electricians. Disconnect all power supplies before installation and wait for 15 minutes to allow the DC bus capacitors to discharge completely (tension < 45Vdc)

Exigences environnementales:

Température: -10°C à +40°C (déclasser par 1% for every 1°C increase above 40°C)

Humidité: 5%-95% sans condensation

Altitude: ≤1000m (déclasser par 1% for every 100m increase above 1000m)

Classe de protection: IP20 (cabinet installation), assurer une bonne aération

Tool Preparation: Multimètre, 1000V mégohmmètre, clé dynamométrique, outil de sertissage, ruban isolant

1.2 Installation mécanique

Méthode d'installation: Doit être installé verticalement, with 150mm heat dissipation space reserved on all sides (haut, bas, left and right)

Fixing Requirements: Secure with M12 bolts at a torque value of 50Nm to ensure stability and no vibration

Cooling System:

Equipped with built-in fan cooling; ensure air inlets are unobstructed

Clean dust in the air duct regularly (every 3 mois)

Install external cooling equipment when the ambient temperature exceeds 40°C

1.3 Connexion électrique (Étapes principales)

Notes de connexion:

1. Route input and output cables separately (distance ≥300mm) pour éviter les interférences électromagnétiques
2. Use shielded cables for control circuits, with the shield layer grounded at one end (on the frequency converter side)
3. Perform a tensile test on all terminal connections to ensure no looseness
4. Install a surge suppressor on the motor side (facultatif)

1.4 Câblage du circuit de commande

Circuit de contrôle de base:

Connect the start (DI1), arrêt (DI2), and forward/reverse (DI3) bornes

Ensure the emergency stop circuit is independent of the frequency converter control

Communication Connection:

Modbus: Connect to RS485 terminals (+, -) with a baud rate of 9600-19200bps

Profibus: Install the optional VW3A3407 communication card

1. Wiring Inspection and Commissioning Process

2.1 Inspection du câblage

1. Test d'isolation:

Insulation resistance between input/output terminals and ground ≥1MΩ (tested with 1000V megohmmeter)

Motor winding insulation resistance ≥1MΩ

2. Continuity Test:

Check that there is no short circuit between input and output terminals

Verify normal continuity of control circuit terminals

3. Paramétrage:

Restore factory settings (P0.01=1)

Set motor parameters (P1.01-P1.07): puissance nominale, tension, actuel, fréquence

Set control mode (P2.01=0: Contrôle V/F; =1: contrôle vectoriel)

2.2 Étapes de mise en service

1. Mise en service à vide:

Disconnect the motor, start the frequency converter, and check for balanced output voltage

Test the frequency adjustment range (0-60Hz)

2. Loaded Commissioning:

Connecter le moteur, set acceleration time (P4.01=10s) et temps de décélération (P4.02=15s)

Gradually load up to 100% and check for normal current and temperature

Test overload capacity (150% du courant nominal pour 60 secondes)

1. Troubleshooting Manual

2.1 Fault Diagnosis Process

1. Fault Identification: Record fault codes, operating status at the time of fault, and parameter settings
2. Preliminary Inspection:

Power off and check for loose wiring and insulation damage

Inspect the cooling system and dust in the air duct

Measure power supply voltage and motor insulation

3. Targeted Troubleshooting: Identify causes based on fault codes
4. Solution Implementation: Repair or replace faulty components
5. Verification Test: Conduct trial operation after fault elimination to confirm no abnormalities

2.2 Common Fault Codes and Solutions (Core Content)

2.3 Advanced Troubleshooting

Parameter Faults:

When “Invalid Setting” is displayed, press the ENT key twice to restore factory parameters

When parameters are corrupted, restore factory settings via P0.01=1

Communication Faults:

Check for loose communication cable and connectors

Confirm that baud rate and address settings match the host system

Test communication module and replace faulty modules

Hardware Faults:

Power Module Fault: Measure DC bus voltage (normal range: 540-600V)

Control Board Fault: Inspect indicator lights and replace control board if necessary

Driver Board Fault: Replace driver board and perform re-commissioning

III. Calendrier d'entretien