Bosch Rexroth DDS3.1-W150-D Digital Servo Drive
Description
Model Definition
DDS3.1: Third‑generation servo drive series for DIAX03 control systems
W: Internal cabinet convection air cooling
150: 150 A continuous rated current, 300 A peak current
D: Standard digital motor feedback interface (DSF)
Technical Specifications
Electrical Parameters
DC bus voltage: 300 V DC ±15% (supplied by TVD/TVM power units)
Control power: 24 V DC (20–28 V DC operating range)
Continuous output current: 150 A
Peak output current: 300 A (short‑term)
Current loop cycle: 62.5 μs
Speed loop cycle: 250 μs
Position loop cycle: 1 ms
Power dissipation: ~820 W
Compatible motors: MDD/MKD synchronous motors, LAR/LAF linear motors, 2AD series
Mechanical & Environmental
Cooling: Internal cabinet convection
Protection class: IP20 (front), IP10 (unit)
Operating temperature: 0 °C to +45 °C (20% derating at 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: ~8.0 kg
Interface and Communication Configuration
Motor feedback: X4 dual‑channel (digital encoder DSF)
System bus: Shared 300 V DC bus for multi‑axis parallel operation
Communication: U1–U5 expansion slots (SERCOS, PROFIBUS, CANopen optional)
Digital I/O: 6 isolated inputs, 3 isolated outputs
Service port: RS232 (IndraWorks setup/diagnostics)
Core Functions
High‑speed three‑loop control (current/speed/position) for fast, stable heavy‑load response
Digital feedback interface ensures precise positioning and velocity regulation
Convection cooling fits standard cabinets without extra cooling
Comprehensive protection: overvoltage, undervoltage, overcurrent, short circuit, overtemperature, feedback loss
Supports torque/speed/position control modes
Modular design simplifies maintenance and expansion
Application Scenarios
Heavy‑load main axes and multi‑axis CNC machine tools
Large textile, printing, and packaging machinery
Heavy gantry systems, large conveyors, automated lines
DIAX03 system upgrades with digital feedback
Cabinet‑space‑constrained equipment using convection cooling
Usage and Maintenance
Ensure unobstructed cabinet airflow for cooling
Keep ambient temperature ≤45 °C to avoid derating
Complete all power/feedback/bus/control wiring before power‑on
Configure parameters and tune loops via IndraWorks
Every 6 months: clean heat paths, check terminals
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