Bosch Rexroth DDS03.2-W030-B12-01 Digital Servo Drive
May 29, 2026

Bosch Rexroth DDS03.2-W030-B12-01 Digital Servo Drive

Product Description The DDS03.2-W030-B12-01 is a modular digital AC servo drive from the Bosch Rexroth Indramat DDS03.2 series, designed for DIAX03 control systems. It features internal cabinet air cooling, 30 A continuous current, a B12 interface configuration (with function ID 12), and hardware revision 01. Optimized for medium-power multi-axis applications requiring reliable motion control and flexible communication options.

Description

Model Definition

DDS03.2: Servo drive series for DIAX03 systems (firmware v3.x)

W: Internal cabinet air cooling

030: 30 A continuous rated current, 60 A peak current

B12: Basic unit with factory-assigned function ID 12 (specific I/O/communication configuration)

01: Hardware revision 01

Technical Specifications

Electrical Parameters

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

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

Continuous output current: 30 A

Peak output current: 60 A (short-term operation)

Current loop cycle: 125 μs

Speed loop cycle: 500 μs

Position loop cycle: 2 ms

Power dissipation: ~120 W (@30 A)

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

Mechanical & Environmental Parameters

Cooling method: Internal cabinet air cooling (integrated blower + heatsink)

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

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

Storage temperature: -30 °C to +85 °C

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

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

Weight: ~5.5 kg

Interface and Communication Configuration

Motor feedback: X4 dual-channel interface (supports digital encoder and resolver signals)

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

Communication: B12 configuration (predefined I/O mapping; slot U1 supports optional fieldbus modules like PROFIBUS, SERCOS)

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

Service port: RS232 interface (for IndraWorks parameter setup and diagnostics)

Expansion slots: U1 (communication), U5 (firmware), U2–U4 (I/O/option cards)

Core Functions

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

B12 predefined interface simplifies system integration for standard automation tasks

Internal cooling design saves cabinet space for dense multi-axis installations

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

Supports torque, speed, and position control modes to meet diverse application needs

Modular architecture enables easy maintenance and future function expansion

Application Scenarios

Medium-power axes of high-precision CNC machine tools

Textile, printing, and packaging machinery with multi-axis synchronous motion

Automated assembly lines and handling robots

Industrial automation equipment requiring flexible communication and I/O configuration

Retrofit projects for DIAX02 to DIAX03 system upgrades

Usage and Maintenance

Ensure unobstructed airflow inside the cabinet to maintain cooling efficiency

Keep ambient temperature ≤45 °C to avoid performance derating

Complete power, feedback, and control wiring before power-on commissioning

Configure operating parameters via IndraWorks based on actual motor and load requirements

Clean internal air passages and heat sinks every 6 months; inspect terminal connections regularly

Calibrate control loops and feedback signals annually to ensure long-term operational stability


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