Product Description:

The Bosch Rexroth Indramat CDB01.1C-S3-ENS-ENS-EN2-EN2-NN-S-NN-FW is a drive-mounted control unit in the CDB Control Units series. Installed inside a cabinet next to power inverters, it coordinates motion tasks for servo drives, reads encoder feedback, and exchanges setpoints with supervisory PLCs. By executing the current, speed, and position loops on the card rather than in the PLC, it minimizes bus latency and enables deterministic axis behavior in automated assembly lines and material-handling stations.

Its logic section is powered from 24 V DC, so the control electronics stay active during mains outages for orderly shutdown. Deterministic communication with drives and PLCs is handled through Sercos III. Control precision is aided by a current loop that closes every 125 µs and a position loop that refreshes each 500 µs, reducing following error during rapid profiles. The module accepts 18 digital inputs for limit switches or sensors, while another four terminals can be configured as combined digital I/O to simplify wiring. One analog input acquires a ±10 V reference, two touch-probe inputs capture edge events, and a single relay output energizes auxiliary loads. No integrated safety option is present, so external hardware must provide emergency stop functions.

The board supervises 2 controlled axes, each supported by versatile feedback ports. Encoder connectors 1 and 2 accept IndraDyn, Hiperface, 1 Vss, or TTL signals, whereas ports 3 and 4 are prepared for EnDat 2.1, 1 Vpp, or TTL encoders, allowing mixed sensor topologies within one machine. Analog command capability is delivered by 2 analog outputs. The speed loop updates every 250 µs, keeping velocity deviations low during load changes. For setup and diagnostic logging, a laptop can be linked through the RS232 serial interface.