ABB DSQC355A Robotics Servo Control Unit 2kW

Product Overview

The DSQC355A is a specialized servo drive module engineered for the ABB S4 and S4C robot controller series. This high-performance power electronics unit serves as the essential interface between the robot's central processing unit and its AC synchronous joint motors. By executing advanced closed-loop digital regulation, the DSQC355A provides deterministic control over position, velocity, and torque. Designed for the rigorous demands of 24/7 manufacturing, it ensures the robotic arm maintains path-following accuracy and vibration-free motion during high-speed operations. Its modular construction is optimized for cabinet integration, making it a reliable choice for maintaining legacy automation assets or deploying in new precision-based robotic cells.

Detailed Technical Specifications

• Manufacturer: ABB

• Model Designation: DSQC355A

• Device Type: Industrial Robot Servo Drive

• Series Compatibility: S4 and S4C Controller Systems

• Rated Output Power: Typically 1–2 kW per axis (dependent on motor frame size and load inertia)

• Control Architecture: Real-time closed-loop digital servo regulation

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

• Internal DC Bus: Regulated for regenerative energy management

• Communication Interface: ABB proprietary drive bus link

• Safety Protocol: Hard-wired emergency stop integration and drive enable logic

• Operating Temperature: 0°C to +45°C

• Storage Temperature: -20°C to +70°C

• Cooling Method: Forced air cooling via integrated industrial axial fans

• Mounting: Rack-mounted or cabinet-mounted drive unit

• Physical Dimensions:  280 mm × 140 mm × 220 mm

• Net Weight: 0.85kg

• Protection Rating: IP20 (standard for industrial cabinet housing)

• Compliance: CE, UL Listed, and international robotic safety standards