Schneider ATV32H075N4

Schneider ATV32H075N4 (Altivar 32) is a low-power variable frequency drive (VFD) manufactured by Schneider Electric, mainly used for precise control of the speed and torque of low-power motors (such as 0.75 kW motors).

1. Overview

• Model: ATV32H075N4
• Series: Altivar 32
• Power Rating: 0.75 kW (approx. 1 HP)
• Voltage: 400 V (supports a voltage range of 380-500 V)
• Phase: 3-phase (single-phase versions are also available, while the standard model is three-phase)
• Key Features: Suitable for low-power motors requiring high-precision speed control; compact in size and easy to install.

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2. Core Parameters

• Rated Current: Approx. 3.6 A (specific value depends on the supply voltage)
• Dimensions: Width 45 mm, Height 325 mm, Depth 245 mm; Weight approx. 2.5 kg
• Protection Degree: IP20 (indoor use, electric shock protection)
• Operating Environment: Ambient temperature -25°C to 60°C, altitude 0-1000 meters (derating required proportionally at higher altitudes)
• Communication Methods: Supports Modbus RTU (RJ45 interface) and CANopen communication protocols

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3. Product Features

• High Efficiency: Adopts precise PWM control technology to achieve efficient motor operation and reduce energy consumption.
• Compact Design: Equipped with a built-in heat sink, eliminating the need for an external fan, which reduces noise and overall volume.
• Safety Functions: Supports Safe Torque Off (STO) function, enabling emergency stop in compliance with IEC 60204-1 standards.
• Remote Monitoring: Built-in Bluetooth module (select versions), supporting remote diagnosis and parameter configuration via mobile devices.
• Strong Compatibility: Can be directly installed with GV2 circuit breakers, simplifying electrical wiring on the power supply side.

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4. Structure and Components

• Main Circuit Board: Integrates IGBT power components, inverter circuits, and PWM controllers.
• Control Unit: Microprocessor (CPU) and memory, responsible for executing control algorithms and storing operating parameters.
• Communication Interfaces: RJ45 interface (supports Modbus/CANopen) and USB interface.
• Heat Dissipation System: Metal heat sink for effective heat dissipation during operation.
• Display/Operation Panel: LED display and knob on the front panel for local parameter setting and operation control.

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5. Typical Application Fields

• Automated Production Lines: Packaging machinery, conveyor belts and other equipment requiring variable speed operation.
• Pumps and Fans: Used for flow regulation and control in various fluid delivery scenarios.
• Small Machine Tools: Spindle drive for CNC machine tools and other small processing equipment.
• HVAC Systems: Control of small fans or pumps in heating, ventilation and air conditioning systems.

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6. Installation and Maintenance

• Installation: It is recommended to install in a well-ventilated and dry environment. Due to the built-in heat sink design, ensure sufficient air circulation space around the heat sink for optimal heat dissipation.
• Grounding: Must be properly grounded, usually via the chassis grounding screws to ensure operational safety.
• Maintenance: Regularly check for loose wiring terminals, and clean the heat sink to prevent dust blockage that affects heat dissipation performance.
• Parameter Setting: Basic parameters can be set via the front panel knob; advanced programming and parameter configuration can be completed using SoMachine software.

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