Product Description:

The CDB01.1C-S3-NNN-NNN-NNN-NNN-NN-S-NN-FW is a control unit produced by Bosch Rexroth Indramat for the CDB Control Units series. As a modular drive controller component, it coordinates multiple servo drive power sections and forwards motion commands to field devices inside an automation cell. By housing axis logic and interface circuitry in a compact rack module, it simplifies cabinet wiring while providing deterministic timing for synchronized positioning tasks on production lines and machining centers.

This model supports a double-axis configuration, letting one card manage a pair of independent mechanical axes through its integrated control loops. Communication with the central PLC takes place over SERCOS III, ensuring fiber-optic, real-time exchange of setpoints and feedback. The current loop is refreshed every 125 µs, so torque commands react quickly to load changes. Speed regulation is recalculated on a 250 µs velocity cycle, and final position correction is performed each 500 µs. The device can also align its network telegrams to the minimum SERCOS cycle, maintaining bus consistency with other motion nodes. No option boards are fitted in sockets x4.1, x4.2, x8.1, or x8.2, so the base hardware remains clear for future expansion.

System integration is aided by a built-in RS232 service port for parameter loading and diagnostic capture without occupying the SERCOS channel. One programmable relay output rated at 1 N/O permits direct switching of external contactors or status lamps. Safety circuitry can be implemented through 2 available safety configuration slots, although no standard safety option is installed. Control software is loaded from a Separate Subposition, so updates can be handled without removing the main board. The unused option slots leave the base hardware open for later expansion with additional I/O or communication modules.