Product Description:

The CSH01.3C-S3-ENS-NNN-CCD-L2-S-NN-FW is a motion and I/O controller produced by Bosch Rexroth Indramat in the CSH Advanced Controllers series. Installed in servo cabinets, the unit interprets SERCOS telegrams, supervises sensor feedback, and issues precisely timed command signals to the power stage that drives the motor. This role places the device at the center of coordinated multi-axis automation cells. It combines high-speed communication with local analog and relay resources, so machine builders can integrate sensors, valves, and drive status contacts without separate interface modules.

Signal conditioning starts with one differential analog input that accepts ±10 V and presents a 160 kΩ input resistance for minimal sensor loading. Two analog outputs source 1 mA each at a fixed 5 V reference for actuator setpoints. Fast event handling is enabled by a maximum switching frequency of 16 kHz for the PWM stages, while digital capture of limit switches or encoders through the TTL channel reaches 400 kHz. The optical SERCOS interface can update process data in as little as 250 µs, and the dedicated encoder front end tracks incremental or absolute signals up to 500 kHz. A single form-A relay with one normally open contact provides galvanic isolation for status signaling or safety interlock functions.

Total controller demand is only 8.5 W, so cabinet thermal load stays low. During power-up, the module draws an inrush current of 4 A with a pulse width of 100 ms, after which consumption returns to its nominal level. An internal encoder supply delivers 11.6 V at up to 500 mA, eliminating the need for an external power rail on feedback devices. Because the contactless I/O design reduces switching losses, the relay and analog channels remain electrically quiet and support precise position loops even when multiple axes share the same control rack.