REXROTH CDB02.1B-ET-EC-EC-NN-NN-NN-NN-NN-FW

Description

Technical Specifications:

• Product Type: Double-axis servo controller (drive control unit)

• Part Number: R911338332

• Bus Architecture – Primary Communication: EtherCAT (ET)

• Bus Architecture – Extended Protocol: EtherNet/IP (EC)

• Control Axes: Dual-axis synchronous control (“EC-EC” suffix identifies dual-axis expansion)

• Firmware Version: FW (requires upgrade to FWA-INDRV-MPM-20V28-D5-1-SNC-NN* to enable safety protocols)

• Ingress Protection Rating: IP20 (must be installed in an electrical control cabinet)

• Lifecycle Status: Discontinued as of Q3 2024 (spare parts supply until 2030)

Hardware Architecture:

• Processor: Multi-core ARM Cortex-A9 (clock frequency ≥800 MHz)

• Memory: 512 MB DDR3 + 1 GB Flash

• Real-Time Cycle: ≤250 μs (EtherCAT synchronous mode)

• I/O Interfaces: 2× RJ45 EtherCAT, 1× USB 2.0 (configuration), Digital I/O terminals (24 VDC)

Safety Function Design:

• Safety Protocol Support: STO (Safe Torque Off) enabled after firmware upgrade to FWA-INDRV-MPM-20V28-D5-1-SNC-NN*

• Safety Interface: Dedicated dual-channel SSI input (compatible with safety encoders)

Functional Features:

• Synchronization Performance: Double-axis control daisy-chain topology jitter <100 ns

• Compatible Servo Motors: MKD071B-061-KG1-KN (peak torque 18 Nm, SSI feedback compatible)

• I/O Expansion Module: R-ILB S3 AI12 AO4 SSI-IN4 (12 AI + 4 AO + SSI interface)

• Host Controller Compatibility: NI cRIO-9063 (EtherCAT master, Linux RTOS support)

Principle of Operation:
The controller operates as a dual-axis servo drive control unit within an EtherCAT-based motion control network. It manages two servo motors simultaneously with precise synchronization, executing real-time control cycles at ≤250 μs. The device supports MultiEthernet master communication for seamless connectivity.

Advantages and Strengths:

• High-precision dual-axis synchronous control

• Integrated safety technology options (Safe Torque Off, Safe Motion)

• Multi-Ethernet interface for flexible network integration

• Reliable performance in packaging machines, labelers, and multi-axis gantry systems

Applicable Industries:
Metallurgical machinery (rolling systems), new energy vehicle battery production lines (electrode winding machines), packaging machinery, labelers, multi-axis gantry systems.

Model Series: CDB02 Control Units Series

Installation Requirements:

• Supply Voltage: 24 VDC ±10% (voltages >28 VDC cause hardware damage)

• Grounding Resistance: ≤1 Ω (star topology, poor grounding causes EMC interference)

• Ambient Temperature: 0–55 °C (>40 °C requires forced air cooling; >60 °C triggers thermal shutdown)

Usage Precautions:
Must be installed within an electrical control cabinet due to IP20 rating. Firmware upgrades performed via Rexroth IndraWorks tool.