Product Description:

The CDB02.1B-ET-EC-EC-PB-S4-S4-EC-NN-FW is a modular drive controller manufactured by Bosch Rexroth Indramat for the CDB Control Units series. It serves as the central processing section between an IndraDrive power module and the plant PLC, translating field signals and network traffic into deterministic torque and speed commands. By combining motion supervision, I/O conditioning, and bus routing inside one housing, the device streamlines cabinet layouts in packaging, printing, and material-handling cells where synchronized multi-axis movement is required.

In its standard build, the unit coordinates 2 control axes, each monitored through Multi-Encoder feedback. Machine states are detected through 14 digital inputs and relayed to the PLC or internal control logic, while 8 configurable digital I/O points can be mapped as alarms or handshake bits. Analog conditioning provides 2 analog inputs and 2 analog outputs with a ±10 V range, and the outputs use 13-bit voltage resolution with 24 mV per increment for proportional references. Transistor stages supply 500 mA to solenoids, and an isolated relay path can switch loads up to 1000 mA. Four optional slots allow the addition of fieldbus, safety, or encoder cards, and network connectivity is handled by Multi-Ethernet with an auxiliary PROFIBUS channel.

Power draw is limited to 23 W, reducing heat when several controllers share one enclosure. Functional safety is integrated through Safe Motion x2, allowing STO or SS1 without external circuits. Real-time communication with higher-level controllers is carried over 100Base-TX hardware and supports EtherNet/IP, PROFINET, and SERCOS over Ethernet. The triple-channel Multi-Encoder interface permits three position feedback sources per axis for redundancy or gantry synchronization. Minimal standby current and efficient bus routing help simplify thermal design in densely packed automation cabinets.