ABB ACS550-01-044A-4 High-Power Variable Speed ​​Drive

• 1. Product Overview

  The ABB ACS550‑01‑044A‑4 is a medium‑to‑high power low‑voltage variable speed drive designed for speed and torque control of three‑phase induction motors. It features advanced control algorithms, energy savings functions, comprehensive protection, and flexible communication interfaces. It is suitable for a wide range of industrial applications to achieve precise drive control, automatic adjustment, and system integration.

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  2. Main Technical Specifications (Typical)

  • Model: ACS550‑01‑044A‑4

  • Product Type: Low‑Voltage Variable Speed Drive

  • Input Power: 3 × 380–480 V AC ±10%

  • Rated Current: 44 A

  • Rated Power: Approx. 30 kW

  • Control Methods: Standard V/f control, optional vector control

  • Output Frequency Range: 0–599 Hz

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

  • I/O: Multiple DI/DO & AI/AO

  • Cooling: Forced air cooling

  • Mounting: Panel or cabinet mount

  • Ambient Temperature: ‑10 ℃ to +50 ℃

  • Protection Class: IP20 (standard)

  • Protection Functions: Overload, short circuit, over/undervoltage, overheat, stall protection

  • Safety Features: Emergency stop, power loss restart

  • Dimensions: Compact design (specific size per product datasheet)

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  3. Advantages and Features

  • High‑Performance Drive Control
    Provides precise V/f and optional vector control for different load types and stable motor performance.

  • Energy Saving & Dynamic Performance
    Automatically adjusts current/frequency to reduce energy consumption; kinetically efficient in certain operating conditions.

  • Comprehensive Protection & Reliability
    Built‑in protective functions ensure system and equipment protection.

  • Strong Communication & Integration
    Supports common industrial protocols for integration with PLC, SCADA, or DCS systems.

  • Easy Installation & Maintenance
    Compact structure for easy installation; user‑friendly interface simplifies commissioning and maintenance.

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  4. Typical Applications

  • Industrial automation production line drives

  • Pumps, fans, compressors, and conveyor equipment

  • HVAC and ventilation systems

  • Machine tools, lifts, and industrial machinery

  • Energy and process control systems

  • Petrochemical, mining, paper, and food & beverage industries

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  5. Precautions for Installation and Use

  • Verify drive rated voltage/current and motor parameters before installation

  • Ensure installation environment is well ventilated and free of high temperature or corrosive gases

  • Tighten wiring terminals properly to avoid poor contact issues

  • Follow manufacturer’s commissioning guidelines for initial setup

  • Drive maintenance and replacement should be performed by qualified personnel

  • Regularly check cooling paths, wiring terminals, and drive performance

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The structure and details of the product：

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