Bosch Rexroth DDS03.1-W030-D Digital Servo Drive
May 29, 2026

Bosch Rexroth DDS03.1-W030-D Digital Servo Drive

Product Description The DDS03.1-W030-D is a 30 A peak / 10 A continuous modular digital AC servo drive of the Bosch Rexroth Indramat DDS03.1 series for the DIAX02 system. It features internal cabinet air cooling and digital servo feedback (resolver/digital encoder), serving as a compact, cost-effective mid-power model for general automation applications.

Description

Model Definition

DDS03.1: Servo drive series 03.1 for DIAX02

W: Internal cabinet air cooling

030: 30 A peak current (10 A continuous)

D: Digital servo feedback (resolver + digital encoder)

MPN: R911260126

Technical Specifications

Electrical Parameters

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

Control power: 24 V DC (20–28 V DC)

Continuous output current: 10 A

Peak output current: 30 A (short-term)

Current loop cycle: 125 μs

Speed loop cycle: 500 μs

Position loop cycle: 2 ms

Power dissipation: Approx. 110 W

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

Mechanical & Environmental Parameters

Cooling method: Internal cabinet air cooling

Protection class: IP20 (front), IP10 (overall)

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 at 5000 m)

Dimensions (W×H×D): 60 mm × 408 mm × 180 mm

Weight: Approx. 5.5 kg

Interface and Communication Configuration

Feedback: Digital servo (resolver + digital encoder, standard)

System bus: 300 V DC shared bus for multi-axis systems

Digital I/O: 6 inputs / 3 outputs (enable, fault, limit switches)

Expansion slots: U1–U2 for communication modules (SERCOS/analog/fieldbus)

Service port: RS232 (for IndraWorks parameterization and diagnostics)

Core Functions

Current/speed/position three-loop control for high-precision motion

Internal air cooling saves cabinet space for dense layouts

Compact 60 mm width enables multi-axis integration

Digital feedback ensures high-resolution positioning and fast error detection

Comprehensive protection: overvoltage, undervoltage, overcurrent, short circuit, overheating, feedback loss

Supports torque/speed/position control modes

Application Scenarios

CNC machine tools (mid-power axes)

Printing/textile/packaging machinery

Robotics/handling systems with 10 A continuous current

General automation retrofits

Light-duty spindle drives

Usage and Maintenance

Install with cabinet airflow ≥ 100 m³/h to ensure proper cooling

Operate below 45 °C to avoid performance derating

Configure feedback type (resolver/encoder) via IndraWorks

Clean internal air passages every 6 months to prevent dust buildup

Calibrate control loops and feedback system annually


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