Product Description:

The CSH01.1C-S3-ENS-ENS-MEM-L2-S-NN-FW controller card is produced by Bosch Rexroth Indramat and belongs to the CSH Advanced Controllers series. It serves as the drive-control core for IndraDrive power sections, handling axis position loops, feedback emulation, and integrated safety functions in industrial automation cells. By accepting fieldbus traffic directly on the board, the module helps reduce cabinet space while maintaining deterministic motion coordination across multiple servo axes.

The card exchanges real-time data with upper-level PLCs through SERCOS III, presented on a dedicated RJ-45, 8-pin port, so deterministic motion telegrams travel on standard Ethernet cabling. Two feedback sockets labeled ENS provide two standard encoder evaluation channels, allowing simultaneous monitoring of primary motor encoders and simulated follower signals. Each ENS channel carries differential square-wave or sinusoidal streams up to a cutoff of 500 kHz, and the board can reproduce trajectories at a maximum emulation frequency of 1 MHz. Encoder supply is generated on the card at 11.6 VDC, eliminating external power taps while maintaining a stable reference, and support for absolute and incremental formats allows the controller to work with both legacy and modern feedback technologies.

All encoder outputs are galvanically isolated from the logic domain, protecting downstream drives over line distances of up to 75 m on sense cables and 40 m on simulated lines. The emulation connector uses a D-Sub 15-pin female layout and can deliver up to 500 mA, so an external emulation supply is not required. Functional safety is handled by the integrated Safe Torque Off circuit; the STO signal arrives on a D-Sub 9-pin female receptacle and is recognized when 24 V / 3 mA is applied per channel. Once asserted, torque is removed within the drive stack to support machine stop requirements without separate contactors.