REXRTOH DDS02.1/03.1 Digital AC Servo Drive

REXRTOH DDS02.1/03.1 Digital AC Servo Drive

Product Overview and Core Positioning

DDS02.1/03.1 is a digital AC servo drive launched by Bosch Rexroth (Indramat). It adopts a modular design and can be flexibly matched with MDD, MKD synchronous motors, and LAF/LAR linear motors to form a fast response drive system. Its core positioning is to provide high-precision and high reliability servo drive solutions for machine tools, textile machinery, printing and packaging equipment, robots, and material handling equipment, supporting complex control requirements such as single axis positioning and multi axis collaboration.

Product model and core configuration

Model classification and key parameters | Model series | Cooling method | Rated current range | Adaptive feedback type | Weight|

|DDS02.1-W | Air cooling (cabinet heat dissipation) | 15A-200A | DSF/RSF | Approximately 7.5kg|

|DDS02.1-A | External air cooling (cabinet heat dissipation) | 50A-200A | DSF/RSF | Approximately 11kg|

|DDS02.1-F | Liquid Cooling | 50A-200A | DSF/RSF | Approximately 11kg|

|DDS03.1-W | Air Cooling (Basic) | 30A-50A | DSF/RSF | Approximately 5.5kg|

Core component composition

Basic unit: including power part, signal processing circuit, providing core connection points such as motor power supply, feedback interface, bus interface, etc.

Software module: Stores firmware and driver parameters, supports parameter backup and migration, and firmware can be independently ordered and updated.

Plugin module: optional SERCOS interface, analog interface, single axis positioning module (DLC01.1/02.1), INTERBUS-S slave interface, etc., to expand functionality and communication capabilities.

Core functions and technical parameters

core functionality

Servo drive: Supports position and speed closed-loop control, compatible with digital servo feedback (DSF) and rotary transformer feedback (RSF), with high control accuracy.

Positioning control: Up to 3000 program blocks can be programmed for motion sequence through a single axis positioning module (DLC series).

Fault monitoring: Integrated monitoring functions for overvoltage, undervoltage, short circuit, abnormal temperature, cable breakage, etc., to ensure system safety.

Communication Expansion: Supports bus protocols such as SERCOS and INTERBUS-S, and some models can expand communication interfaces through plug-in modules.

Key technical parameters

Power supply parameters: DC 300V ± 15% bus voltage, DC 24V (20-28V wide voltage) control voltage, control circuit current consumption of about 1.1A.

Environmental parameters: working temperature of 0-45 ℃ (with a capacity reduction of up to 55 ℃), storage and transportation temperature of -30~85 ℃, protection level of IP20, maximum installation altitude of 1000m.

Performance parameters: Continuous current of 10A-105A, peak current of 15A-200A, short control cycle, rapid response.

Installation and Electrical Connection Specification

Installation requirements

Installation method: 35mm standard top cap guide rail (EN 60715) is used for vertical installation, and at least 2cm/40mm heat dissipation space should be reserved for the upper and lower ventilation openings.

Layout principle: High power drivers should be located near the power supply unit, and signal cables and power cables should be routed separately to avoid interference.

Cooling precautions: The liquid cooling model should follow the dedicated installation guide, and the external air cooling model should ensure that the heat sink is exposed and well ventilated.

Core points of electrical connection

Motor connection: Shielded cables with a maximum length of 75m are required for the motor power cable, which should be connected to the power line, grounding wire, temperature monitoring wire (PTC), and brake wire.

Feedback connection: The feedback cable needs to be shielded. The DSF feedback corresponds to the DDSxx. 1-xxxx-D model, and the RSF feedback corresponds to the DDSxx. 1-xxxx-R model, and cannot be mixed.

Bus and control connection: Supports RS232 interface (parameter configuration), bus interface (X1), analog diagnostic output (X3), etc., and must be wired strictly according to the pin definitions.

Safety regulations and maintenance requirements

Safety operation standards

Anti electric shock: After power failure, wait for 5 minutes for discharge before carrying out maintenance operations. All units must be reliably grounded.

Anti dangerous sports: Safety devices such as emergency stop switches and protective fences should be equipped to avoid equipment or personnel injuries caused by misoperation.

EMC protection: Following electromagnetic compatibility standards, power cables and signal cables are wired separately, shielded cables are used, and reliably grounded.

Maintenance and Storage

Maintenance: The equipment comes with default parameters at the factory, and after repair, user parameters need to be re imported. Only spare parts approved by the manufacturer are allowed to be used.

Storage: It should be stored in a dry, dust-proof, and shock resistant environment with a temperature range of -30~85 ℃, avoiding contact with conductive dust and hydraulic oil.

Transportation: Shockproof packaging is required to avoid falling or collision, and to keep dry during transportation.

Core accessories

Connection kit: E. - DDS 2/3 series electrical connection kit, including bus cables, DC bus rails, etc.

Plugin modules: SERCOS interface module (DSS01.1/01.3), analog interface module (DAE01.1/DAA01.1), etc.

Special accessories: liquid cooling accessories (SH-FL, M2-F), external cooling fan (LE4 series), service cable (IKS0391).