Bosch Rexroth DDS02.2-W050-BE12-01 Digital Servo Drive
May 29, 2026

Bosch Rexroth DDS02.2-W050-BE12-01 Digital Servo Drive

Product Description The DDS02.2-W050-BE12-01 is a 50 A modular digital AC servo drive of the Bosch Rexroth Indramat DDS02.2 series for the DIAX03 system. It features internal cabinet air cooling, BE12 dual interface (SERCOS fiber-optic + resolver), and hardware version 01. Optimized for medium-power multi-axis systems needing rugged resolver feedback and high-speed SERCOS synchronization.

Description

Model Definition

DDS02.2: Servo drive series 02.2 for DIAX03

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

050: 50 A continuous rated current

BE12: SERCOS fiber-optic bus (DSS02.1M) + resolver feedback (DRF02.1M)

01: Hardware version 01

MPN: R911265337

Technical Specifications

Electrical Parameters

DC bus voltage: 300 V DC ±15% (TVD/TVM supply)

Control power: 24 V DC (20–28 V DC)

Continuous output current: 50 A

Peak output current: 100 A (short-term)

Current loop cycle: 62.5 μs

Speed loop cycle: 250 μs

Position loop cycle: 1 ms

Power dissipation: Approx. 180 W

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

Mechanical & Environmental Parameters

Cooling: Internal cabinet air cooling (vertical/horizontal mounting)

Protection class: IP20 (front), IP10 (overall)

Operating temperature: 0 °C to +45 °C (20% derating at 55 °C)

Storage temperature: -30 °C to +85 °C

Max. altitude: 1000 m (35% derating at 5000 m)

Dimensions (W×H×D): 70 mm × 390 mm × 310 mm

Weight: Approx. 7.5 kg

Interface and Communication Configuration

Main interface: BE12 integrated module

SERCOS fiber-optic (DSS02.1M): Real-time multi-axis sync

Resolver (DRF02.1M): Rugged, cost-effective position feedback

Motor feedback: Dual-channel (digital servo + resolver)

System bus: Shared 300 V DC bus for multi-axis

Digital I/O: 8 inputs / 4 outputs (enable, fault, limits, brake)

Expansion slots: U1–U4 for options; U5 for firmware (DSM02.3-FW)

Service port: RS232 (IndraWorks setup)

Core Functions

Current/speed/position three-loop control for medium-power dynamics

BE12 dual-interface: SERCOS bus control + resolver for harsh environments

Internal cooling saves cabinet space, ideal for compact layouts

Modular design: Flexible expansion, fast maintenance

Full protection: Overvoltage/undervoltage, overcurrent, short circuit, overheating, feedback loss

Supports torque/speed/position control modes

Application Scenarios

Medium-power CNC machines with resolver feedback

Multi-axis packaging/printing lines requiring SERCOS sync

Textile machinery with rugged position control

Robotics/handling systems with compact cabinets

Medium-power servo retrofits with BE12 interface

Usage and Maintenance

Install with adequate cabinet ventilation for internal cooling

Operate ≤45 °C to avoid derating

Insert DSM02.3-FW firmware into U5 before commissioning

Wire SERCOS fiber and resolver cables to BE12 correctly

Clean air passages every 6 months; inspect terminals periodically

Calibrate loops and resolver feedback every 2 years


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