ABB AC550-01-072A-4 Low Voltage AC Drive

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1. Product Overview

The ABB AC550-01-072A-4 is a low voltage AC drive designed to control three-phase AC motors for speed, torque, and direction, providing energy savings and precise control for industrial automation systems. It features high-performance IGBT modules, supporting vector control and V/f control modes, and can integrate with PLCs, HMIs, or SCADA systems via multiple communication interfaces. The AC550 series is compact, modular, and suitable for fans, pumps, conveyors, and general industrial machinery.

2. Main Technical Specifications

• Manufacturer: ABB

• Model: AC550-01-072A-4

• Product Type: Low Voltage AC Drive

• Rated Power: 75 kW

• Rated Current: 144 A

• Input Voltage: 3 × 380–480 V AC, 50/60 Hz

• Output Voltage: 0–480 V AC

• Output Frequency: 0–500 Hz

• Control Mode: Vector Control (Sensorless Vector Control, SVC) or V/f Control

• Overload Capacity: 150% for 1 min

• Ambient Temperature Range: -10 °C to +50 °C

• Protection Class: IP20 (optional IP21 / IP54)

• Mounting: Cabinet or panel installation

• Communication Interfaces: Modbus, Profibus, DeviceNet, EtherNet/IP (via optional modules)

• Standards Compliance: IEC 61800-5-1, IEC 61800-3, EN 60204-1

3. Advantages and Features

1. High-Performance Motor Control
   Supports vector control and V/f control for precise speed and torque management.

2. Energy Saving and Efficiency Optimization
   Built-in energy-saving functions optimize motor power consumption based on load.

3. High Reliability
   Industrial-grade IGBT modules with overload protection suitable for harsh environments and high-frequency operation.

4. Flexible Integration
   Supports multiple communication protocols for seamless connection with PLC, HMI, or SCADA systems.

5. Modular Design
   Easy installation, replacement, and expansion, reducing downtime and improving maintenance efficiency.

4. Typical Applications

• Industrial fans, pumps, and compressors

• Conveyors and production line automation

• HVAC systems and air conditioning equipment

• Chemical, metallurgical, paper, and water treatment industries

• Energy-saving and energy management systems

5. Installation and Operation Notes

1. Verify that the drive’s rated voltage, current, and power match the motor and system requirements before installation.

2. Follow wiring diagrams carefully to ensure proper connection of power supply, motor, and grounding.

3. Ensure proper ventilation and cooling; avoid high temperature, humidity, and dust accumulation.

4. Perform no-load and load tests before commissioning to ensure proper operation of the drive and motor.

5. Regularly inspect heat sinks, fans, and electrical connections to ensure long-term reliable operation.

The structure and details of the product：

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