Product Description:

Bosch Rexroth Indramat manufactures the CDB02.1B-ET-EC-EC-NN-S4-S4-NN-NN-FW control unit as part of the CDB Control Units series. Designed to mount with compatible drive electronics, it supervises motion on two axes in factory automation and coordinates the interface between the control layer and the power stage. The module handles signal conditioning, communication routing, and safety monitoring for servo motors and connected sensors. It translates fieldbus commands into real-time drive instructions and returns encoder feedback to the controller so position and speed loops can remain synchronized across both axes. This arrangement keeps motion-control functions close to the drive hardware while maintaining network access for the machine controller.

The front panel carries two analog input channels with 13-bit resolution, and the 2 analog inputs can accept torque or speed references from external sensors or higher-level control devices. Two analog output channels are scaled at 24 mV/incr, and the 2 analog outputs can retransmit processed setpoints to auxiliary equipment that needs a conditioned analog signal. Communication uses Multi-Ethernet through dual RJ-45, 8-pin sockets operating at 100Base-TX for 100 Mbit/s links. Two physical network ports support inline connection, while the multi-encoder interface captures feedback from two axes through a 15-pin female D-Sub connector. This layout lets the unit handle both network traffic and encoder return signals from the same mounting position.

On the control side, the unit provides 8 configurable digital I/O lines plus 14 digital inputs for limit switches, interlocks, user commands, and other discrete machine signals. Integrated Safe Motion functions monitor torque and position on the same two axes without requiring separate external relays for basic safety supervision. Power electronics are not included, so the board docks directly to the HMD01 power section, which supplies the DC bus and motor phases. Four unpopulated option slots can accept expansion cards for added fieldbus or feedback functions when the application needs more interface capacity. Local wiring for sensors and interlocks can therefore remain on the control unit instead of being redirected through separate interface modules.