ABB ACH550-PDR-04A1-4 AC Variable Frequency Drive

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1. Product Overview

The ABB ACH550-PDR-04A1-4 is a high-performance AC variable frequency drive (VFD) designed for controlling three-phase AC motor speed and torque. This VFD provides a wide power range and flexible control functions, significantly improving energy efficiency and production efficiency in industrial automation systems. The ACH550 series offers reliable motor protection, precise speed regulation, and programmable control, suitable for fans, pumps, compressors, and general machinery applications.

2. Technical Specifications

Electrical Specifications

• Model: ACH550-PDR-04A1-4

• Power Rating: 0.75 kW

• Input Voltage: 3AC 380–480 V ±10%

• Output Voltage: 0–380/480 V

• Output Frequency Range: 0–599 Hz

• Rated Current: 2.4 A

• Control Type: V/Hz control, vector control (optional)

• Communication Interface: Modbus RTU (RS-485), optional Profibus/Profinet/DeviceNet

• Protection Functions: Overload, overcurrent, overvoltage, undervoltage, short circuit, overheat

Environmental & Installation

• Operating Temperature: –10°C … +50°C (without derating)

• Storage Temperature: –40°C … +70°C

• Protection Degree: IP20 (panel mount)

• Mounting: Wall or panel mount

• Dimensions (HxWxD): 175 mm × 90 mm × 140 mm

• Weight: Approx. 2.5 kg

Additional Features

• Supports PID control, adjustable acceleration/deceleration

• Built-in DC bus braking function (optional)

• Remote monitoring and parameter setup available

• Energy-saving mode reduces power consumption

• Compliant with CE, UL, and IEC standards

3. Advantages & Key Features

1. Energy-efficient — High-efficiency motor control reduces energy consumption.

2. Precise speed control — Vector control and PID support for accurate process control.

3. Industrial-grade reliability — Provides overload, overcurrent, overvoltage, and short-circuit protection.

4. Flexible communication — Integrates with various industrial fieldbus systems.

5. Easy installation & maintenance — Compact structure with simple wiring and parameter configuration.

6. Multi-functional control — Enables remote monitoring, automatic control, and energy-saving operation.

4. Application Areas

• Fan, pump, and compressor control

• HVAC systems

• Conveyor and packaging machinery

• Industrial automation production lines

• Chemical, power, and water treatment facilities

• General motor control applications requiring variable frequency operation

5. Precautions

1. Verify input power, rated capacity, and load match VFD specifications before installation.

2. Install in a dry, well-ventilated environment, avoiding dust, moisture, and corrosive gases.

3. Maintain at least 50 mm clearance around the VFD for proper cooling.

4. Wiring and parameter setup must strictly follow the manual to ensure safety.

5. Regularly inspect the fan and heat sink for adequate cooling.

6. Disconnect power before installation or maintenance to ensure safety.

The structure and details of the product：

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