Bosch Rexroth DDS2.1-W100 Digital Servo Drive
Description
Model Definition
DDS2.1: Servo drive series compatible with DIAX02 system
W: Internal cabinet convection air cooling
100: 100 A continuous rated current, 200 A short-term peak current
Technical Specifications
Electrical Parameters
DC bus voltage: 300 V DC ±15%, powered by TVD or TVM power units
Control power supply: 24 V DC, operating range 20 V DC to 28 V DC
Continuous output current: 100 A
Peak output current: 200 A for short-time operation
Current loop cycle: 125 μs
Speed loop cycle: 500 μs
Position loop cycle: 2 ms
Power dissipation: Approximately 450 W
Compatible motors: MDD, MKD synchronous servo motors, LAR, LAF linear motors, 2AD series motors
Mechanical & Environmental Parameters
Cooling method: Internal cabinet convection air cooling
Protection class: IP20 for front panel, IP10 for the whole 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): 150 mm × 408 mm × 180 mm
Weight: Approximately 7.5 kg
Interface and Communication Configuration
Motor feedback: X4 dual-channel interface supporting digital encoder and resolver signals
System bus: Shared 300 V DC bus for multi-axis parallel connection
Communication: Reserved expansion slots for optional SERCOS, analog and fieldbus modules
Digital I/O: 6 isolated inputs and 3 isolated outputs for basic control signals
Service port: RS232 interface for parameter setting and fault diagnosis via IndraWorks
Expansion slots: U1 to U5 for installing additional I/O and functional modules
Core Functions
Current, speed and position three-loop control ensures stable and high-precision motion performance.
Dual feedback compatibility adapts to different types of servo motors.
Internal convection cooling fits cabinet installation without external fans.
Complete protection against overvoltage, undervoltage, overcurrent, short circuit, overheating and feedback signal loss.
Supports torque, speed and position control modes to meet diverse working requirements.
Modular design facilitates daily maintenance and function expansion.
Application Scenarios
Medium and heavy-load main axes of CNC machine tools
Large textile, printing and packaging machinery
Gantry systems, heavy-duty conveying and automated production lines
DIAX02 system renovation and replacement projects requiring 100 A continuous current
Automation equipment with limited cabinet space and no external cooling conditions
Usage and Maintenance
Maintain sufficient air circulation inside the cabinet to guarantee heat dissipation effect.
Keep ambient temperature below 45 °C to avoid performance decline.
Complete wiring of power, feedback and control circuits before power-on.
Set parameters via IndraWorks according to actual motor and load conditions.
Clean heat dissipation components and air passages every six months, and inspect terminal connections regularly.
Calibrate control loops and feedback signals once a year to maintain long-term stable operation.
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