ABB DSQC345D 3HAB8181-4 Servo Drive and Amplifier

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 1. Product Overview

The ABB DSQC345D 3HAB8181-4 Servo Drive and Amplifier is a high-performance servo drive module used in ABB industrial robots and automation systems to control motor speed, position, and torque. It combines advanced power amplification technology and digital control processors, providing fast response, high-precision motion control, and robust protection features. The module ensures smooth motion, precise positioning, and long-term stable operation in industrial environments.

2. Main Technical Parameters (Typical)

Electrical Data

• Model: DSQC345D 3HAB8181-4

• Input voltage: 3-phase AC 380–480 V

• Output power: 2–15 kW depending on motor

• Control mode: Closed-loop servo control (position, speed, torque)

• Communication interfaces: EtherCAT / Profibus / ABB dedicated bus

• Overload capacity: 150% of rated current for 60 s

• Protection features: Overcurrent, overvoltage, short circuit, overtemperature

Performance Specifications

• Response time: <1 ms

• Control accuracy: Position ±0.01° (depending on system and motor)

• Maximum output current: Depends on connected motor

• Supported feedback devices: Incremental or absolute encoder

Environmental & Operating Conditions

• Operating temperature: 0°C to +50°C

• Storage temperature: ‑20°C to +70°C

• Relative humidity: 5%–95% (non-condensing)

• Mounting: Control cabinet or dedicated bracket

Mechanical & Installation

• Dimensions: Compact design for modular cabinet installation

• Weight: approx. 15–20 kg (depending on model)

• Cooling: Air-cooled or forced air

Standards & Certifications

• Compliant with IEC/EN 61800-5-1/2

• CE, UL, RoHS certified

3. Advantages and Features

• High-precision servo control: Position, speed, and torque closed-loop control

• Fast response: <1 ms response time ensures stable high-speed motion

• Robust protection: Overcurrent, overvoltage, short-circuit, and overtemperature protection

• Modular design: Facilitates system integration, maintenance, and upgrades

• Strong compatibility: Supports multiple industrial communication protocols for seamless integration with ABB robots and automation systems

• High reliability: Industrial-grade design suitable for harsh electromagnetic and temperature/humidity environments

4. Typical Applications

• Servo control for ABB industrial robots

• Drive systems in automated production lines

• CNC machining and precision mechanical motion control

• Automated assembly and material handling equipment

• Process industry and servo-controlled applications

5. Application Notes

• Ensure motor power matches the drive rated output

• Input power must be 3-phase AC 380–480 V

• Maintain proper ventilation, cooling, and dust protection during installation

• Avoid overload operation and periodically check wiring and cooling

• Confirm communication interface compatibility with the control system

• Avoid prolonged operation in high-temperature or high-humidity environments

The structure and details of the product：

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