Product Description:

The CSB01.1C-SE-ENS-MA1-L2-S-NN-FW is a plug-in control section developed by Bosch Rexroth Indramat for the CSB Drive Controllers series. Installed inside a power section, it handles axis regulation and fieldbus communication in multi-axis automation lines. By combining motion command processing, encoder evaluation, and integrated safety inputs on a single card, the unit coordinates servo drives, infeed modules, and higher-level PLCs inside packaging, printing, or material-handling machines.

The module exchanges setpoints with the drive via the Sercos fiber optic fieldbus, ensuring deterministic cycle times. Position feedback arrives through the ENS, 11.6 V, 300 mA encoder interface that simultaneously supplies sensor power. Motion commands can be generated locally with the MA1 board, which offers 2 differential, ±10 V, 12-bit analog inputs along with two matching outputs for reference generation. The inputs are sampled at 1 kHz, and the conversion chain holds linearity within ±0.3 % of full-scale. A front-end impedance of 1000 kΩ keeps loading on connected transducers low; each output can source 10 mA into a 1 kΩ burden. For commissioning tasks, a service port supports serial communication between 9.6 and 115 kBaud so firmware updates or parameter backups can be performed without occupying the main bus.

Functional safety is handled by the integrated Safe Torque Off circuit. The feature is enabled through a DC 24 V / 1 A acknowledgement contact and is wired on a D-Sub, 9-pin, female connector separate from the drive logic. When a stop is requested, the system fulfills the Safe Torque Off requirement for power stage isolation without timing delays. The control inputs accept a 24 V / 3 mA signal level and remain active across a DC 19.2–30 V supply window, allowing tolerance for momentary voltage dips in control cabinets.