Product Description:

The CSH01.1C-PB-EN2-EN2-MEM-S1-S-NN-FW is a control section produced by Bosch Rexroth Indramat for the CSH Advanced Controllers series. Installed inside an IndraDrive power unit, it coordinates servo axes by handling fieldbus communication, encoder acquisition, and integrated safety functions in industrial automation cells. It serves as the control layer between the drive power section and the external automation system during closed-loop motion control.

Primary field connectivity is provided through PROFIBUS-DP, accessed on a D-Sub 9-pin female connector, allowing deterministic data exchange with higher-level PLCs. Cabinet layout is facilitated by a depth of 49.5 mm, a width of 103 mm, and a height of 241 mm, so multiple sections can be stacked without collision. When the DC bus is energized, the board momentarily draws 4 A of inrush current, which must be considered when sizing fuses and contactors. Position data is acquired on the dual-channel EN2 interface, which digitizes feedback with a 12-bit converter and accepts EnDat 2.1, 1 Vpp, or 5 V TTL signal formats. Both encoder ports use the same EN2 interface type, so the unit can support matching feedback devices on paired axes. For test benches or master-slave axes, an encoder emulator mounted in the third option slot outputs synthetic feedback at an internal frequency of 1 MHz.

The encoder pathway transmits analog sine waves up to 500 kHz, and it sources 350 mA to power external transducers, helping maintain stable feedback signals on long cable runs. Motion and safety share the same board, and the Safety Technology I/O option supplies logic power through a rated line of 24 V / 0.5 A, supporting light-curtain muting or safe torque-off circuits without extra relays. This arrangement allows feedback processing and safety I/O to remain integrated within the same drive assembly while keeping external wiring straightforward.