ABB ACS550-01-05A4-4 Low Voltage AC Drive

Product Overview

The ABB ACS550-01-05A4-4 is a low voltage AC drive (VFD) designed to control three-phase asynchronous motors for speed, torque, and start/stop operation. It features advanced vector control and energy-saving operation, protects the motor, and provides multiple communication interfaces and programmable functions, making it suitable for industrial automation, pumps, fans, compressors, and general machinery.

Technical Specifications

• Model: ACS550-01-05A4-4

• Product Type: Low Voltage AC Drive / Variable Frequency Drive (VFD)

• Rated Output Current: 5.4 A

• Rated Output Power: Approx. 2.2 kW (380–480 V AC)

• Rated Voltage: 3-phase AC 380–480 V

• Input Supply: 3-phase AC 380–480 V, 50/60 Hz

• Control Method: V/Hz control + vector control (optional)

• Speed Range: 0–150 Hz (stepless control)

• Overload Capacity: 150% for 1 minute

• Protection Functions: Overcurrent, overvoltage, undervoltage, overheating, short-circuit, stall protection

• Ambient Temperature: -10 °C … +50 °C (no derating)

• Mounting: Wall-mounted or panel-mounted

• Protection Degree: IP20 (standard)

• Communication Interfaces: Modbus RTU, optional Profibus, Ethernet/IP

• Features: Energy-saving mode, acceleration/deceleration control, process protection, fault diagnostics

Advantages and Features

1. High Reliability and Industrial Design
   Provides long-term stable operation suitable for industrial environments.

2. Precise Motor Control
   Enables start, stop, and speed regulation to enhance production efficiency.

3. Energy-Saving Operation
   Built-in energy-saving and torque control reduce energy consumption.

4. Comprehensive Protection
   Overload, stall, overvoltage, undervoltage, and overheating protection improve system safety.

5. Easy Integration
   Supports multiple industrial communication protocols for seamless connection with PLC or DCS systems.

6. Fast Fault Diagnostics and Maintenance
   Supports fault logging, alarms, and remote monitoring, reducing downtime.

Typical Applications

• Industrial automation production lines

• Pumps, fans, compressors, and fluid transport systems

• HVAC and air conditioning systems

• Conveyor and machinery speed control

• Chemical, power, metallurgical, and infrastructure projects

Precautions

1. Verify input power, motor rated current, and power before installation.

2. Ensure proper grounding to avoid electrical hazards.

3. Avoid installation in high-temperature, high-humidity, or corrosive environments unless protection measures are applied.

4. Set acceleration/deceleration times and control parameters according to load type.

5. Regularly inspect ventilation and cooling fans to ensure long-term stable operation.

The structure and details of the product：

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