Bosch Rexroth DDS2.1-W015-DA01 Digital Servo Drive
May 29, 2026

Bosch Rexroth DDS2.1-W015-DA01 Digital Servo Drive

Product Description The DDS2.1-W015-DA01 (also written DDS02.1-W015-DA01) is a compact, internally air‑cooled digital AC servo drive for the DIAX02 system (Rexroth Indramat). It delivers 15 A continuous / 30 A peak current, uses cabinet convection cooling (W‑type), and is fitted with the DA01 analog interface + DSF digital feedback option for light‑duty, analog‑commanded motion applications.

Description

Model Definition

DDS2.1: DIAX02 drive series (firmware v2.x)

W: Internal cabinet air cooling (convection, no external fan)

015: 15 A continuous, 30 A peak current

DA01: Digital servo feedback + Analog interface (±10 V command) + incremental encoder emulation

‑00/‑01: Revision/firmware variant (often omitted in short notation)

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: 15 A

Peak current: 30 A (short‑term)

Current loop: 125 μs

Speed loop: 500 μs

Position loop: 2 ms

Power dissipation: ~100 W (@15 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): 60 mm × 408 mm × 180 mm

Weight: ~5.5 kg

Interface and Communication Configuration

Motor feedback: X4 (DSF digital servo encoder, dual‑channel)

Command interface: DA01 analog (±10 V speed/torque command, incremental encoder emulation for host)

System bus: Shared 300 V DC bus for multi‑axis parallel operation

Digital I/O: 6 isolated inputs / 3 isolated outputs (base unit)

Service port: RS232 (IndraWorks setup/diagnostics)

Expansion slots: U1–U5 (for fieldbus/SERCOS modules, optional)

Core Functions

Three‑loop control (current/speed/position) for precision motion

W‑type internal convection cooling for space‑saving cabinet mounting

DA01 analog + DSF digital feedback combo: analog command, digital feedback

Incremental encoder emulation for compatibility with analog‑only controllers

Comprehensive protection: over/undervoltage, overcurrent, short circuit, overheat, feedback loss

Torque/speed/position control modes

Application Scenarios

Low‑power CNC auxiliary axes (analog command from CNC)

Light‑duty textile, printing, packaging machinery (±10 V control)

Small assembly lines and material handling with analog PLCs

DIAX02 system upgrades needing 15 A + analog interface

Cabinet‑space constrained machines with internal cooling

Usage and Maintenance

Ensure cabinet airflow ≥ 500 m³/h for internal cooling

Keep ambient ≤45 °C to avoid derating

Wire power, feedback (X4), analog command, and I/O before power‑on

Configure via IndraWorks: match motor, set DA01 analog scaling

Clean heatsink/air passages every 6 months; inspect terminals

Calibrate control loops/feedback annually


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