Bosch Rexroth DDS02.1W150DS04-03-FW Digital Servo Drive
May 29, 2026

Bosch Rexroth DDS02.1W150DS04-03-FW Digital Servo Drive

Product Description The DDS02.1W150DS04-03-FW is a high-power modular digital AC servo drive from Bosch Rexroth DDS02.1 series for DIAX02 system. It adopts cabinet internal air cooling, configured with 150 A continuous rated current and DS04 high-performance SERCOS digital bus interface. Built with version 03 hardware and equipped with detachable firmware module, it delivers stable high-speed synchronous control for heavy-duty multi-axis industrial devices with rigorous communication demands.

Description

Model Definition

DDS02.1: Servo drive series 02.1 for DIAX02 system

W: Cabinet internal air cooling

150: 150 A continuous rated current

DS04: High-performance SERCOS real-time digital bus interface

03: Hardware and firmware version 03

FW: Detachable independent firmware module

Technical Specifications

Electrical Parameters

DC bus voltage: 300 V DC ±15%, supplied by TVD / TVM power supply units

Control power supply: 24 V DC (20 V DC to 28 V DC)

Continuous output current: 150 A

Peak output current: 300 A for short-term operation

Current loop cycle: 62.5 μs

Speed loop cycle: 250 μs

Position loop cycle: 1 ms

Power dissipation: Approx. 480 W

Compatible motors: MDD, MKD, LAR, LAF series high-power servo and linear motors

Mechanical & Environmental Parameters

Cooling method: Cabinet internal air cooling, vertical installation required

Protection class: IP20 on front panel, IP10 overall

Operating temperature: 0 °C to +45 °C, performance derating available up to 55 °C

Storage temperature: -30 °C to +85 °C

Maximum installation altitude: 1000 m, performance derating required above this height

Dimensions (W×H×D): 110 mm × 390 mm × 310 mm

Weight: Approx. 8.0 kg

Interface and Communication Configuration

Control interface: DS04 high-performance SERCOS real-time digital bus

Motor feedback interface: Standard digital servo feedback

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

Digital I/O: 8 digital inputs and 4 digital outputs for enable, fault alarm, limit switch and brake control

Expansion slots: Multiple slots for optional communication and functional modules

Service port: RS232 port for parameter setting via IndraWorks software

Firmware module: Removable module for firmware storage and parameter backup

Core Functions

Three-loop control of current, speed and position ensures reliable dynamic performance under heavy load.

DS04 SERCOS interface provides fast data transmission and excellent anti-interference capability for complex multi-axis linkage.

Version 03 firmware optimizes operation logic and improves overall system compatibility.

Detachable firmware module enables quick replacement and fast parameter recovery during maintenance.

Optimized cooling structure guarantees long-term stable operation under high current output.

Modular design supports flexible function expansion and convenient on-site maintenance.

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

Supports torque, speed and position control modes for various high-power motion applications.

Application Scenarios

High-precision heavy-duty CNC machine tools and machining centers

Large multi-axis automated production lines and heavy-load handling robots

Metallurgical, forging and stamping machinery

Industrial automation systems requiring high bus communication reliability

High-power servo systems and equipment retrofitting projects with frequent maintenance work

Usage and Maintenance

Install the drive vertically and ensure adequate ventilation inside the cabinet.

Keep ambient temperature below 45 °C during operation.

Install the firmware module correctly and complete all wiring before commissioning. Configure parameters via IndraWorks software.

Clean internal fan and heat sink every 6 months, and inspect terminal connections periodically. Calibrate control loops every 2 years to maintain stable operation.

Transfer the firmware module to a new unit directly to realize rapid system recovery when drive replacement is needed.


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