Product Description:

The CDB02.1B-ET-EC-EC-EC-S4-S4-NN-NN-FW belongs to the CDB Control Units series produced by Bosch Rexroth Indramat. This plug-in control card serves as the control section for compatible IndraDrive systems, directing motion sequences and safety states in two-axis industrial machinery. Installed in a Rexroth drive stack, it interprets feedback from encoders and plant sensors, exchanges real-time data over industrial Ethernet, and forwards precise setpoints to the attached power modules that energize the servomotors. Because it operates at the control level, it coordinates command flow and axis behavior without requiring a separate standalone controller in the drive assembly.

The card can coordinate 2 controlled axes, integrating both channels through shared processing resources. Its electronics operate from a regulated 24 VDC service supply that enters on the front power connector. Field communication is implemented through a Multi-Ethernet interface, permitting Ethernet/IP, PROFINET, or EtherCAT selection without changing hardware. For local process variables, the unit provides 2 analog inputs on the x32 terminal, which are useful for speed demand or tension reference signals. Basic machine states are accepted through 2 digital I/O signals wired to the x31 plug, enabling direct start, inhibit, or fault indication lines. This mix of network communication and local signal handling suits machines that combine centralized control with direct field wiring.

Feedback flexibility is delivered by 3 multi-encoder interfaces, allowing simultaneous connection of incremental, absolute, or Hiperface sensors for each axis channel. Certified drive safety is embedded through the Safe Motion technology package, which offers functions such as safe stop or safely limited speed without external relays. Under nominal conditions, the control logic draws only 23 W at 24 V, which helps limit cabinet heat generation and reduces demand on the service supply. This arrangement lets the unit handle encoder evaluation, safety-related motion functions, and control processing within the same plug-in module, helping keep the drive stack compact.