Rexroth DKC01

Technical Specifications

• Input power supply: 3-phase 230V / 400V AC (model dependent)
• Continuous output current range: 3A to 200A (different power grades)
• Control modes: position control, velocity control, torque control
• Feedback support: incremental encoder, absolute encoder, resolver
• Communication interfaces: PROFIBUS, CANopen, RS-232

Functional Features

• Digital three-loop control architecture with high dynamic response
• Built-in positioner function for independent point-to-point positioning tasks
• Auto-tuning function for fast system commissioning
• Comprehensive protection functions: overcurrent, overvoltage, undervoltage, overheat, encoder fault
• Support for electronic gear and cam profile functions

Application Scenarios

• CNC machine tool feed axis drive
• Packaging machinery and printing equipment motion control
• Material handling and assembly automation
• Textile machinery and plastic processing equipment

Performance Parameters

• Current loop update cycle: 62.5µs
• Velocity loop bandwidth: up to 400Hz
• Positioning accuracy: depends on encoder resolution
• Overload capacity: 300% of rated current for 3 seconds
• Operating ambient temperature: 0°C to +50°C (derating above 40°C)

Material Composition

• Housing: steel sheet with powder coating
• Heat sink: aluminum alloy extrusion
• Power stage: IGBT power modules
• Control board: DSP-based digital control circuit

Structural Features

• Panel-mount design with integrated rear heat sink
• Front-facing connectors for power, motor, feedback and communication
• Modular structure with optional communication and expansion cards
• Cooling fan for high-power models (intelligent speed control)

Working Principle The servo drive receives motion commands from the host controller, and performs closed-loop calculation through the internal current loop, velocity loop and position loop. It outputs three-phase AC voltage with variable frequency and variable amplitude to the servo motor through the IGBT power inverter circuit. The motor encoder feeds back the real-time position and speed signals to the drive to form a closed control system, realizing precise control of motor position, speed and torque.

Installation Requirements

• Install vertically on a rigid mounting plate with sufficient load-bearing capacity
• Reserve at least 50mm clearance on top and bottom for cooling air flow
• Use shielded cables for motor power and encoder connections
• Separate power cables from control signal cables by at least 100mm
• The drive chassis and cable shielding must be reliably grounded

Usage Precautions

• Ensure the input power supply matches the drive voltage rating
• Do not connect or disconnect motor or encoder cables while power is on
• Set motor parameters correctly before the first run
• Regularly clean the heat sink and fan filter to prevent overheating
• Wait at least 10 minutes after power off before opening the cover to allow capacitor discharge