Product Description:

Bosch Rexroth Indramat manufactures the CDB01.1C-S3-EN2-EN2-ENS-EN2-S2-S-NN-FW. This control unit belongs to the CDB Control Units series and is installed inside IndraDrive drive controllers to coordinate axis functions, fieldbus traffic, and integrated safety in industrial automation cells. By translating feedback from multiple encoder channels into deterministic commands for the power stage, the device synchronizes motion sequences and lets modular machines run repeatable cycles with minimal latency.

For real-time data exchange, the unit employs SERCOS III over the integrated S3 port, which terminates on an RJ-45 8-pin connector and supports 100Base-TX Ethernet signaling. Its analog monitor channel sources up to 1 mA, while each digital output can supply or sink 500 mA to drive contactors or status lamps. During power-up, the logic stage experiences an inrush current of 6 A that lasts 60 ms before settling to a base consumption of 9 W. A shielded RS-232 service port can extend to 15 m without repeaters for local setup or diagnostics. Safe Motion technology is integrated so velocity-limited and torque-limited operating modes can be activated without external relays.

Sensor feedback handling is split across the En2 and Ens channels. The En2 rail delivers 5.0 VDC to incremental encoders, and the board presents three En2 interfaces so multiple encoder sources can be connected at the same time; each channel tolerates loads down to 35 ohms without droop. The separate Ens port powers multi-turn absolute encoders with 11.6 VDC and provides 1 interface with a 120-ohm input impedance to match typical line termination. These provisions allow mixed encoder types to coexist on the same drive, reduce adapter hardware, and maintain deterministic timing between position sampling and command generation.