Bosch Rexroth DDS2.1‑W050‑D (DDS02.1‑W050‑D) Digital Servo Drive
Description
Model Definition
DDS2.1: DIAX02 drive series (firmware v2.x)
W: Internal cabinet air cooling (convection, no external fan)
050: 50 A continuous, 100 A peak current
D: DSF digital servo feedback interface (standard)
Technical Specifications
Electrical
DC bus: 300 V DC ±15% (from TVD/TVM power supplies)
Control supply: 24 V DC (20–28 V DC)
Continuous current: 50 A
Peak current: 100 A (short‑term)
Current loop: 125 μs
Speed loop: 500 μs
Position loop: 2 ms
Power dissipation: ~220 W (@50 A)
Compatible motors: MDD/MKD synchronous, LAR/LAF linear, 2AD series
Mechanical & Environmental
Cooling: Internal cabinet airflow (W‑type, convection)
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): 150 mm × 408 mm × 180 mm
Weight: ~6.0–7.5 kg
Interface and Communication Configuration
Motor feedback: X4 (DSF digital servo encoder, dual‑channel)
System bus: Shared 300 V DC bus for multi‑axis parallel operation
Communication: Expansion slots U1–U5 (analog, fieldbus, or SERCOS modules)
Digital I/O: 6 isolated inputs / 3 isolated outputs (base unit)
Service port: RS232 (IndraWorks setup/diagnostics)
Core Functions
Three‑loop control (current/speed/position) for high precision
Compact W‑type internal cooling for space‑saving cabinet installation
Integrated DSF digital feedback for accurate motor positioning
Modular design for flexible communication/feedback upgrades
Comprehensive protection: over/undervoltage, overcurrent, short circuit, overheat, feedback loss
Torque/speed/position control modes
Application Scenarios
Medium‑precision CNC machine axes (milling/turning)
Textile, printing, and packaging machinery (single/dual‑axis)
Assembly lines and material handling systems
Space‑constrained control cabinets (no external blower required)
DIAX02 system upgrades with 50 A continuous current
Usage and Maintenance
Ensure cabinet airflow ≥ 350 m³/h for internal cooling
Keep ambient ≤45 °C to avoid derating
Complete power/feedback/control wiring before power‑on
Configure via IndraWorks (match motor/load parameters)
Clean heatsink/air passages every 6 months; inspect terminals
Calibrate control loops/feedback annually
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