Bosch Rexroth DDS2.1-W100-D Digital Servo Drive
Description
Model Definition
DDS2.1: Servo drive series compatible with DIAX02 system (DDS02.1 is the official designation)
W: Internal cabinet convection air cooling (control cabinet external air circulation)
100: 100 A continuous rated current, 200 A short-term peak current
D: Basic unit with digital servo feedback, no pre-installed communication module (factory-assigned communication/function ID)
Technical Specifications
Electrical Parameters
DC bus voltage: 300 V DC ±15%, powered by TVD/TVM power units
Control power supply: 24 V DC (20–28 V DC operating range)
Continuous output current: 100 A
Peak output current: 200 A (short-time)
Current loop cycle: 125 μs; Speed loop: 500 μs; Position loop: 2 ms
Power dissipation: ~450 W
Compatible motors: MDD/MKD synchronous servo motors, LAR/LAF linear motors, 2AD series motors
Mechanical & Environmental Parameters
Cooling method: Control cabinet external air cooling (internal convection)
Protection class: IP20 (front panel), IP10 (whole unit)
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): 150 mm × 408 mm × 180 mm
Weight: ~7.5 kg
Interface and Communication Configuration
Motor feedback: X4 dual-channel interface (digital encoder/resolver signals, digital servo feedback)
System bus: Shared 300 V DC bus for multi-axis parallel connection
Communication: No pre-installed bus module (U1–U5 expansion slots for SERCOS/analog/fieldbus modules)
Digital I/O: 6 isolated inputs, 3 isolated outputs (basic control signals)
Service port: RS232 (IndraWorks parameter setting/fault diagnosis)
Core Functions
Three-loop control (current/speed/position) for high-precision motion performance
Digital servo feedback ensures accurate positioning and speed regulation
Modular design supports flexible function expansion via plug-in modules
Cabinet convection cooling adapts to narrow installation spaces
Comprehensive protection: Overvoltage/undervoltage/overcurrent/short circuit/overheating/feedback loss
Supports torque/speed/position control modes for diverse load requirements
Application Scenarios
Medium-to-heavy duty main axes of CNC machine tools
Large textile, printing, and packaging machinery
Gantry systems, heavy-duty conveying lines, and automated production lines
DIAX02 system retrofits requiring 100 A continuous current
Automation equipment with limited cabinet space and no external cooling
Usage and Maintenance
Ensure unobstructed cabinet airflow for effective heat dissipation
Maintain ambient temperature ≤45 °C to avoid performance derating
Complete power/feedback/bus wiring before power-on
Configure parameters and expansion modules via IndraWorks based on motor/load conditions
Clean heat dissipation components every 6 months; inspect terminal connections regularly
Calibrate control loops and feedback signals annually for long-term stability
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