Rexroth DKC03

Technical Specifications

• Maximum output current: 40A (medium power rating for DKC03.3-040-7-FW variant)
• Power supply: Three-phase AC input
• Control modes: Position, velocity, and torque control with seamless mode switching
• Encoder interface: High-precision multi-protocol encoder support
• Communication: Multiple fieldbus protocol compatibility
• Overload capacity: 300% peak current for short durations
• Operating ambient temperature: 0°C to +50°C
• Protection rating: IP20
• Mounting type: Panel mount / DIN rail compatible

Functional Features

• Fast dynamic response reduces production cycle time and minimizes waiting periods
• Multiple protection mechanisms include overcurrent, overload, and temperature monitoring
• High-precision encoder interface achieves micron-level positioning accuracy
• Compatible with major industrial bus systems for flexible system integration
• Built-in diagnostic and fault logging functions

Application Scenarios

• CNC machining centers and metalworking machinery
• Automated packaging and filling lines
• Industrial robotics and handling systems
• Textile manufacturing equipment
• Material handling and conveyor systems

Structural Characteristics

• Robust metal housing with integrated heat sink
• Modular design with pluggable communication modules
• Front-panel status LEDs and diagnostic display
• Standardized mounting footprint for easy retrofitting
• Optimized internal airflow path for efficient cooling

Working Principle

The DKC03 employs field-oriented vector control technology. The digital signal processor executes current, velocity, and position control loop calculations at high sampling rates. IGBT power modules convert DC bus voltage into variable-frequency three-phase AC to drive the servo motor. Real-time encoder feedback closes the control loop, and the advanced algorithm compensates for load disturbances and mechanical resonance.

Installation Requirements

• Install in a dry, dust-free electrical cabinet
• Allow sufficient space for cable bending at the bottom
• Torque power terminals to manufacturer specifications
• Separate power cables from signal cables to reduce interference
• Connect protective earth terminal with low-resistance conductor

Operating Notes

• Configure motor parameters correctly before first operation
• Use only Rexroth-approved cables and connectors
• Do not operate beyond rated current without proper derating
• Perform regular firmware updates for optimal performance
• Follow ESD protection procedures when handling internal components