Bosch Rexroth DDS03.1-W030-D Digital Servo Drive
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% (from 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
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
Digital I/O: 6 inputs / 3 outputs (enable, fault, limits)
Expansion: U1–U2 for communication modules (SERCOS/analog/fieldbus)
Service port: RS232 (IndraWorks setup)
Core Functions
Current/speed/position three-loop control
Internal cooling saves cabinet space
Compact 60 mm width for dense multi-axis layouts
Digital feedback ensures high-resolution positioning
Protection: overvoltage, undervoltage, overcurrent, short circuit, overheating
Supports torque/speed/position modes
Application Scenarios
CNC machine tools (mid-power axes)
Printing/textile/packaging machinery
Robotics/handling systems with 10 A continuous
General automation retrofits
Light-duty spindle drives
Usage and Maintenance
Install with cabinet airflow ≥ 100 m³/h
Operate below 45 °C to avoid derating
Set feedback type (resolver/encoder) via IndraWorks
Clean air passages every 6 months
Calibrate feedback annually
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