Description
Product Overview: Rexroth DKC03.3-040-7-FW Servo Drive
The Rexroth DKC03.3-040-7-FW is a high-performance digital servo drive from Bosch Rexroth’s IndraDrive family, designed for precise motion control in industrial automation applications. This drive integrates advanced control algorithms, robust power electronics, and seamless connectivity to deliver dynamic and accurate control of synchronous and asynchronous motors. The model suffix 040-7-FW indicates specific ratings, firmware options, and functional capabilities tailored for demanding motion tasks.
Engineered for flexibility and reliability, the DKC03.3 drive supports standalone operation or integration into multi-axis systems, making it ideal for applications requiring high torque accuracy, rapid response, and coordinated motion.
Key Features & Benefits
High Dynamic Performance:
Supports high bandwidth current, velocity, and position control loops, enabling precise motion profiles with minimal settling time and overshoot.
Multi-Feedback Integration:
Compatible with various feedback devices (e.g., EnDat, HIPERFACE®, resolver, incremental encoder) for closed-loop control of motor position and speed.
Integrated Safety Functions:
Includes Safe Torque Off (STO) and optionally Safe Brake Control (SBC) or Safe Limited Speed (SLS) per SIL 3/PLe standards, ensuring compliance with machine safety regulations.
Fieldbus Connectivity:
Supports real-time communication via SERCOS III, EtherCAT, PROFIBUS, or EtherNet/IP, enabling seamless integration into PLC-based automation architectures.
Advanced Tuning and Diagnostics:
Features automatic servo tuning and comprehensive diagnostic tools (e.g., oscilloscope functionality, fault logging) for simplified commissioning and maintenance.
Modular Design:
Allows functional expansion through optional firmware packages and I/O modules (e.g., digital I/O, analog interfaces).

DKC03.3-040-7-FW
Technical Specifications
| Parameter | Specification |
| Manufacturer | Bosch Rexroth |
| Series | IndraDrive DKC03.3 |
| Model | DKC03.3-040-7-FW |
| Rated Output Current | 40 A (peak current dependent on model variant) |
| Supply Voltage | 3× 380–480 VAC, 50/60 Hz |
| Fieldbus Interfaces | SERCOS III, EtherCAT, PROFIBUS-DP, EtherNet/IP (varies by firmware version) |
| Control Modes | Torque, velocity, position (with electronic gearing/camming) |
| Safety Functions | STO (standard); optional SBC, SLS, SS1, SOS |
| Protection Rating | IP20 (requires installation in control cabinet) |
| Firmware Options | Motion Control, CNC, robotics (specified by FW suffix) |
| Programming Environment | Rexroth IndraWorks IDE |
Typical Applications
- Packaging Machinery: Precise control of fillers, wrappers, and labelers.
- Machine Tools: Axis control for CNC milling, turning, and grinding machines.
- Robotics: Joint control for articulated and Cartesian robots.
- Material Handling: Synchronous conveyor systems and positioning stages.
- Printing and Converting: Web tension control and registration.
Integration & Configuration
IndraDrive System Compatibility:
Part of a scalable drive system; can be paired with Rexroth MKD motors and PLCs for optimized performance.
Commissioning Tools:
Configured and tuned using Rexroth IndraWorks software, which provides parameterization, motion profiling, and diagnostic capabilities.
Modular I/O Expansion:
Supports additional I/O modules (e.g., DKCxx.3-S-IO) for custom sensor/actuator integration.
Why Choose the Rexroth DKC03.3-040-7-FW?
- Precision: Delivers sub-millisecond response times and high-resolution feedback processing.
- Scalability: Suitable for single-axis and multi-axis applications with centralized or decentralized architecture.
- Ecosystem Integration: Fully compatible with Rexroth’s IndraDrive motors, controllers, and software tools.
- Global Support: Backed by Bosch Rexroth’s worldwide service network and technical resources.
Disclaimer:
Specifications may vary based on firmware version and configuration. Always refer to the official Bosch Rexroth DKC03.3 Documentation for detailed technical and safety guidelines. Installation and commissioning should be performed by qualified personnel.
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