Bosch Rexroth DDS2.1-W100-RS01-00 Digital Servo Drive
May 29, 2026

Bosch Rexroth DDS2.1-W100-RS01-00 Digital Servo Drive

Product Description The DDS2.1-W100-RS01-00 is a modular digital AC servo drive from the DDS02.1 series for DIAX02 control systems. It adopts internal cabinet convection air cooling, with 100 A continuous current and 200 A short-term peak current. Equipped with RS01 dedicated resolver interface and 00 standard hardware revision, it is suitable for medium and heavy-load automation equipment using resolver feedback.

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

RS01: Dedicated resolver signal processing interface

00: Standard hardware version without customized modification

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 and 2AD series motors equipped with resolver

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

Dimensions (W×H×D): 150 mm × 408 mm × 180 mm

Weight: Approximately 7.5 kg

Interface and Communication Configuration

Motor feedback: X4 interface specially designed for resolver signal reception and processing

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.

RS01 resolver interface features strong anti-interference, adapting to harsh electromagnetic environments.

Standard 00 hardware version ensures good compatibility and interchangeability.

Internal convection cooling fits conventional cabinet installation conditions.

Complete protection against overvoltage, undervoltage, overcurrent, short circuit, overheating and feedback signal loss.

Supports torque, speed and position control modes to meet diverse load demands.

Modular design facilitates daily maintenance and function expansion.

Application Scenarios

Medium and heavy-load main axes of CNC machine tools using resolver motors

Large textile, printing and packaging machinery operating in complex industrial environments

Gantry systems and heavy-duty automated production and conveying lines

DIAX02 system renovation projects configured with resolver feedback

Automation equipment with limited cabinet space and high operational stability requirements

Usage and Maintenance

Maintain sufficient unobstructed air circulation inside the cabinet for heat dissipation.

Keep ambient temperature below 45 °C to avoid performance decline.

Complete wiring of power, resolver 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 resolver signals once a year to maintain long-term stable operation.


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