Bosch Rexroth DDS3.1-W150-D Digital Servo Drive
May 29, 2026

Bosch Rexroth DDS3.1-W150-D Digital Servo Drive

Product Description The DDS3.1-W150-D is a high-power modular digital AC servo drive of the DDS3.1 series, engineered for DIAX03 control systems. It features internal cabinet convection cooling, 150 A continuous current, and 300 A short-term peak current. The “D” suffix indicates a standard digital feedback interface, making it ideal for heavy-duty automation requiring high torque and dynamic performance.

Description

Model Definition

  • DDS3.1: Third‑generation servo drive series for DIAX03 control systems

  • W: Internal cabinet convection air cooling

  • 150: 150 A continuous rated current, 300 A peak current

  • D: Standard digital motor feedback interface (DSF)

Technical Specifications

Electrical Parameters

  • DC bus voltage: 300 V DC ±15% (supplied by TVD/TVM power units)

  • Control power: 24 V DC (20–28 V DC operating range)

  • Continuous output current: 150 A

  • Peak output current: 300 A (short‑term)

  • Current loop cycle: 62.5 μs

  • Speed loop cycle: 250 μs

  • Position loop cycle: 1 ms

  • Power dissipation: ~820 W

  • Compatible motors: MDD/MKD synchronous motors, LAR/LAF linear motors, 2AD series

Mechanical & Environmental

  • Cooling: Internal cabinet convection

  • Protection class: IP20 (front), IP10 (unit)

  • Operating temperature: 0 °C to +45 °C (20% derating at 55 °C)

  • Storage temperature: -30 °C to +85 °C

  • Max altitude: 1000 m (35% derating above)

  • Dimensions (W×H×D): 150 mm × 408 mm × 180 mm

  • Weight: ~8.0 kg

Interface and Communication Configuration

  • Motor feedback: X4 dual‑channel (digital encoder DSF)

  • System bus: Shared 300 V DC bus for multi‑axis parallel operation

  • Communication: U1–U5 expansion slots (SERCOS, PROFIBUS, CANopen optional)

  • Digital I/O: 6 isolated inputs, 3 isolated outputs

  • Service port: RS232 (IndraWorks setup/diagnostics)

Core Functions

  • High‑speed three‑loop control (current/speed/position) for fast, stable heavy‑load response

  • Digital feedback interface ensures precise positioning and velocity regulation

  • Convection cooling fits standard cabinets without extra cooling

  • Comprehensive protection: overvoltage, undervoltage, overcurrent, short circuit, overtemperature, feedback loss

  • Supports torque/speed/position control modes

  • Modular design simplifies maintenance and expansion

Application Scenarios

  • Heavy‑load main axes and multi‑axis CNC machine tools

  • Large textile, printing, and packaging machinery

  • Heavy gantry systems, large conveyors, automated lines

  • DIAX03 system upgrades with digital feedback

  • Cabinet‑space‑constrained equipment using convection cooling

Usage and Maintenance

  • Ensure unobstructed cabinet airflow for cooling

  • Keep ambient temperature ≤45 °C to avoid derating

  • Complete all power/feedback/bus/control wiring before power‑on

  • Configure parameters and tune loops via IndraWorks

  • Every 6 months: clean heat paths, check terminals


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