Model Definition

DDS02.1: DIAX02 system, servo drive series 02.1 (2nd gen, version 1)

A: External air cooling (heat sink outside cabinet, “cold technology”)

100: 100 A continuous rated current

DS03: Enhanced SERCOS digital interface + high‑resolution DSF digital servo feedback

02: Hardware version 02

FW: Factory‑installed DIAX02 firmware (pre‑parameterized)

Technical Specifications

Electrical Parameters

DC bus voltage: 300 V DC ±15% (from TVD/TVM power units)

Control supply: 24 V DC (20–28 V DC)

Continuous output current: 100 A

Peak output current: 200 A (short‑term)

Current loop cycle: 62.5 μs

Speed loop cycle: 250 μs

Position loop cycle: 1 ms

Power dissipation: 97 W

Mechanical & Environmental

Cooling method: External air cooling (vertical mounting required)

Protection class: IP20

Operating temperature: 0 °C to +45 °C (derating to 55 °C)

Storage temperature: -30 °C to +85 °C

Max altitude: 1000 m (derating above)

Weight: Approx. 11 kg

Dimensions (W×H×D): 120 mm × 450 mm × 350 mm

Interface and Communication Configuration

Control interface: SERCOS III real‑time digital bus (DS03, enhanced)

Motor feedback: High‑resolution DSF digital servo feedback

System bus: Shared 300 V DC bus for multi‑axis systems

Digital I/O: 8×in, 4×out (enable, fault, limits, brake)

Expansion slots: U1–U4 for communication/feedback modules

Service port: RS232 (X3) for IndraWorks setup

Analog backup: ±10 V speed/torque command

Core Functions

Three‑loop control (current/speed/position) with ultra‑fast dynamics

Enhanced SERCOS for sub‑microsecond multi‑axis synchronization

High‑resolution feedback for ±1 arcsec positioning accuracy

FW feature: Factory‑loaded firmware enables quick commissioning

Modular design for flexible configuration and easy maintenance

Comprehensive protection: overvoltage, undervoltage, short circuit, overheating, feedback loss

Supports torque, speed, and position control modes

Application Scenarios

Heavy‑duty CNC machine tools (5‑axis mills, gantry machines, large lathes)

High‑precision industrial robots and multi‑axis synchronous lines

Injection molding, metal forming, and die‑casting equipment

Dynamic test benches (engine, vibration, simulation)

Printing/packaging, textile, and paper machinery with tight registration

Usage and Maintenance

Install vertically with unobstructed external airflow (min. 100 mm clearance)

Operate at ≤45 °C ambient; avoid direct sunlight and dust

Wiring: DC bus → 24 V control → motor power → feedback → SERCOS

Commission via IndraWorks; FW preloaded and DS03 parameters optimized

Maintenance: Clean heat sink every 6 months; check terminals annually; calibrate loops every 2 years

FW note: Firmware is factory‑locked; contact Bosch Rexroth for updates