Product Description:

Bosch Rexroth Indramat builds the CSH01.1C-S3-EN2-EN2-NNN-L2-S-NN-FW controller for use in modular drive systems within the CSH Advanced Controllers series. The unit governs servo inverters and auxiliary axes, linking field-level motion hardware to upper-level automation. By processing real-time command data, it coordinates torque, speed, and position loops in assembly lines, packaging machinery, and material-handling cells.

Primary communication with the drive bus is handled through the SERCOS III master interface, while legacy diagnostics can still be accessed through the RS232 serial port. Two EnDat channels are available through the dual EN2 interfaces, and each channel provides a 5.0 V encoder supply that stabilizes position feedback electronics. The controller offers one analog input and two analog outputs for local speed or torque trim, along with a single Form-A relay contact (1 N/O) for general-purpose signaling. Internally, the sine converter works at 12-bit resolution and accepts sinusoidal feedback up to 500 kHz, ensuring low-jitter velocity estimation. The integrated Safe Torque Off circuit meets the SIL3 / Cat. 3 PL e safety rating, removing drive power within a bounded reaction time when actuated.

Safety control is completed outside the logic core. The acknowledgment path drives a DC 24 V / 1 A contact that verifies power removal, and the enable path accepts a 24 V control signal that draws only 3 mA, reducing load on upstream relays. When square-wave encoders are selected, the module samples edges up to 1000 kHz, and the encoder power rail can deliver up to 350 mA so multiple feedback devices can share the same voltage rail. A separate supply keeps the logic alive during drive maintenance, and the board width remains unchanged regardless of option cards, simplifying cabinet layouts.