Bosch Rexroth DDS2.1‑K100‑DS04‑00 (DDS02.1‑K100‑DS04‑00) Digital Servo Drive
May 29, 2026

Bosch Rexroth DDS2.1‑K100‑DS04‑00 (DDS02.1‑K100‑DS04‑00) Digital Servo Drive

Product Description The DDS2.1‑K100‑DS04‑00 is a modular digital AC servo drive for the DIAX02 system (Rexroth Indramat). It delivers 100 A continuous / 200 A peak current, uses internal cabinet air cooling (K‑type), and is factory‑equipped with a SERCOS interface (DS04) for high‑speed multi‑axis synchronization in machine tools and automation lines.

Description

Model Definition

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

K: Internal cabinet air cooling (heat dissipation inside cabinet)

100: 100 A continuous, 200 A peak current

DS04: SERCOS communication interface (standard fiber/copper)

00: No additional options (base configuration)

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: 100 A

Peak current: 200 A (short‑term)

Current loop: 125 μs

Speed loop: 500 μs

Position loop: 2 ms

Power dissipation: ~450 W (@100 A)

Compatible motors: MDD/MKD synchronous, LAR/LAF linear, 2AD series

Mechanical & Environmental

Cooling: Internal cabinet airflow (K‑type, no external blower)

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: ~7.5 kg

Interface and Communication Configuration

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

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

Communication: DS04 SERCOS interface (real‑time, up to 16 axes)

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

Service port: RS232 (IndraWorks setup/diagnostics)

Expansion slots: U1–U5 (U5 dedicated for firmware module)

Core Functions

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

Internal air cooling for 100 A continuous compact operation

Integrated SERCOS (DS04) for high‑speed multi‑axis synchronization

Modular design for flexible configuration (feedback/communication)

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

Torque/speed/position control modes

DIAX02 firmware compatible (FW module ordered separately)

Application Scenarios

Medium‑power CNC machine axes (milling/turning)

Textile, printing, and packaging machinery (multi‑axis)

Assembly lines and material handling robots

High‑dynamic motion requiring 100 A continuous current

DIAX02 system upgrades with SERCOS multi‑axis control

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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