Bosch Rexroth DDS03.1-W050-DA01-00 Digital Servo Drive
May 29, 2026

Bosch Rexroth DDS03.1-W050-DA01-00 Digital Servo Drive

Product Description The DDS03.1-W050-DA01-00 is a compact, modular digital AC servo drive from Bosch Rexroth Indramat’s DDS03.1 series for DIAX02 systems. It features internal cabinet air cooling, an analog interface module (DA01), and hardware version 00. Rated for 20 A continuous current and 50 A peak current, it serves medium-to-high power automation applications requiring analog control and flexible modular expansion.

Description

Model Definition

DDS03.1: Servo drive series compatible with DIAX02 system

W: Internal cabinet air cooling

050: 50 A short-term peak current, 20 A continuous rated current

DA01: Analog interface module (±10 V control signal)

00: Hardware revision 00

Technical Specifications

Electrical Parameters

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

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

Continuous output current: 20 A

Peak output current: 50 A (short-time)

Current loop cycle: 125 μs

Speed loop cycle: 500 μs

Position loop cycle: 2 ms

Power dissipation: ~140 W (at 20 A)

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

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 installation altitude: 1000 m (35% derating above 1000 m)

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

Weight: ~5.5 kg

Interface and Communication Configuration

Motor feedback: Digital servo feedback interface (compatible with MDD/MKD/LAR motors)

System bus: Shared 300 V DC bus for multi-axis connection

Communication interface: DA01 analog module (±10 V speed/torque command)

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

Service port: RS232 for IndraWorks parameter setting/diagnostics

Core Functions

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

DA01 analog interface enables direct connection to analog controllers (±10 V)

Internal cooling saves cabinet space for dense multi-axis layouts

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

Supports torque/speed/position control modes

Modular design allows fieldbus/serial module retrofitting

Application Scenarios

Medium-to-high power CNC machine tool axes

Textile, printing, and packaging machinery

Multi-axis handling robots and automated assembly lines

Automation equipment with analog control systems

Retrofit projects of traditional analog servo systems

Usage and Maintenance

Ensure adequate cabinet airflow for cooling efficiency

Keep ambient temperature ≤45 °C to avoid performance derating

Complete power/feedback/analog wiring before power-on

Configure parameters via IndraWorks per field conditions

Clean air ducts/heat sinks every 6 months; inspect terminals

Calibrate control loops/feedback signals annually


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