Bosch Rexroth DDS03.1-W050-DA02-00 Digital Servo Drive
May 29, 2026

Bosch Rexroth DDS03.1-W050-DA02-00 Digital Servo Drive

Product Description The DDS03.1-W050-DA02-00 is a compact, modular digital AC servo drive from Bosch Rexroth Indramat’s DDS03.1 series for DIAX02 systems. It uses internal cabinet air cooling, is fitted with a DA02 analog interface module, and has hardware revision 00. It delivers 20 A continuous / 50 A peak current, designed for medium-to-high power axes requiring enhanced analog control and reliable performance.

Description

Model Definition

DDS03.1: DIAX02 system servo drive series

W: Internal cabinet air cooling

050: 50 A peak, 20 A continuous current rating

DA02: Analog interface module (enhanced ±10 V, with additional I/O)

00: Hardware revision 00

Technical Specifications

Electrical Parameters

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

Control supply: 24 V DC (20–28 V DC)

Continuous output current: 20 A

Peak output current: 50 A (short‑term)

Current loop: 125 μs

Speed loop: 500 μs

Position loop: 2 ms

Power dissipation: ~140 W (@20 A)

Efficiency: Up to 95%

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

Mechanical & Environmental

Cooling: Internal air blower + heatsink

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

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

Storage temperature: -30 °C to +85 °C

Max altitude: 1000 m (35% derating above)

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

Weight: ~5.5 kg

Interface and Communication Configuration

Motor feedback: X4 interface for digital servo feedback

System bus: Shared 300 V DC bus (multi‑axis)

Communication: DA02 analog module (±10 V speed/torque, enhanced I/O)

Digital I/O: 8 inputs / 4 outputs (enable, fault, limits, ready)

Service port: RS232 (IndraWorks setup/diagnostics)

Configuration slots: U1–U5 for option modules

Core Functions

Three‑loop control (current/speed/position) for high precision

DA02 enhanced analog interface: improved noise immunity, extra I/O vs DA01

Internal cooling saves cabinet space for dense multi‑axis layouts

Comprehensive protection: over/undervoltage, overcurrent, short circuit, overheat, feedback loss

Torque / speed / position control modes

Modular design: fieldbus/serial modules can be retrofitted

Application Scenarios

Medium‑to‑high power CNC machine axes

Textile, printing, packaging machinery

Multi‑axis handling robots and assembly lines

Analog‑based automation systems needing extra I/O

Retrofits of legacy analog servo systems

Usage and Maintenance

Ensure adequate cabinet airflow for cooling

Keep ambient ≤45 °C to avoid derating

Complete power/feedback/analog wiring before power‑on

Set parameters via IndraWorks according to application

Clean air ducts/heatsinks every 6 months; check terminals

Calibrate loops/feedback annually


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