Product Description:

The CSH01.1C-CO-EN2-NNN-MEM-NN-S-NN-FW is a control section from Bosch Rexroth Indramat that belongs to the CSH Advanced Controllers series. The hardware forms the central processing layer inside IndraDrive platforms, coordinating communication, memory, and encoder evaluation for servo axes in automated machinery. By combining dedicated communication (CO), encoder (EN2), and memory (MEM) plug-ins on a single board, the unit links fieldbus networks to the drive control platform and allows deterministic command exchange and real-time feedback for repetitive positioning and speed regulation tasks.

The controller’s base electronics draw only 7.5 W, so overall cabinet thermal load stays low even when several units are mounted side by side. For the integrated SERCOS backplane, a 124 Ω bus terminator is provided to support impedance matching and clean signal edges along the fiber or coax segment. The CANopen interface can supervise up to 127 decentralized nodes, while DeviceNet support tops out at 64, allowing use across different networks. The dedicated CO communication module adds just 1 W of incremental demand and must be secured to the board with a tightening torque of 0.5 Nm to maintain vibration resistance.

Encoder channel EN2 is optimized for high-speed position capture; its electronics dissipate 6 W and operate against a line receiver that presents 35 Ω of differential load to the sensor. The module receives supply from the controller backplane at 350 mA and 5.0 VDC, values that must be considered when sizing the shared low-voltage rail. During start-up, a maximum inrush of 4 A can flow for up to 100 ms, so fusing and power sequencing must accommodate that brief surge. Memory expansion uses the MEM slot, consumes 2 W, and supports output frequencies up to 1 MHz for deterministic latch or capture events.