Product Description:

The CSH01.1C-S3-ENS-NNN-MD2-S2-S-NN-FW is a compact control section from Bosch Rexroth Indramat's CSH Advanced Controllers series. Installed in modular drive racks, the unit provides axis-specific processing for motion sequences and coordinates power inverters, feedback devices, and safety circuits inside industrial automation cells. By combining real-time fieldbus communication with onboard I/O expansion, the controller supports precise command execution in packaging lines, printing machines, and material-handling robots that rely on synchronized positioning. Its compact format also suits control cabinets where multiple motion axes must be integrated without wasting panel space.

The analog front end presents an input resistance of 160 kΩ, so connected sensors place minimal load on delicate transducers. Internal electronics draw only 7.5 W during base operation, which helps limit cabinet heat and supports passive ventilation in stable ambient conditions. For network traffic, the board relies on SERCOS III, an Ethernet-based protocol that transports cyclic setpoints and status data with very low timing variation. The MD2 interface layer adds 16 digital inputs for fast edge detection, while the encoder supply channel can deliver up to 500 mA to absolute or incremental feedback devices without requiring a separate external supply.

During power-up, the controller tolerates an inrush current of 4 A for no longer than 100 ms, which helps reduce nuisance trips on upstream protective devices. Once energized, the safety-rated outputs switch loads of up to 0.5 A, and TTL command channels accept pulse streams up to 400 kHz for fine interpolation in high-resolution servo loops. A stabilized encoder bus voltage of 11.6 V helps maintain signal quality over long cable runs, and the integrated safety relay is approved for 1 A contact currents so external emergency-stop chains can be connected directly. This operating profile suits multi-axis systems that require fast startup, dependable field isolation, and stable signal handling during repeated motion cycles.