Product Description:

The CSH01.1C-PB-ENS-EN2-MD2-S1-S-NN-FW is a control section produced by Bosch Rexroth Indramat for the CSH Advanced Controllers series. Installed in IndraDrive modular drives, this section forms the logic core that processes fieldbus data, executes motion algorithms, and supervises drive-side safety. In automated machining lines, packaging stations, and material-handling axes, it converts higher-level commands into precisely timed current, speed, and position demands for the connected power module. The module is used when axis dynamics must be tightly synchronized with plant cycles.

Fieldbus exchange is handled through PROFIBUS DP, allowing deterministic communication with PLCs at 12 Mbit/s. The section runs on a control supply of 24 V DC, isolating logic from the drive power bus. Current vectors are refreshed every 62.5 µs, speed loops every 125 µs, and position loops every 250 µs; these tightly staggered cycles let the drive correct torque, velocity, and displacement before mechanical errors propagate. A first encoder port accepts IndraDyn, Hiperface, 1 Vpp, or 5 V TTL signals, while a second port adds EnDat 2.1 for high-resolution feedback, enabling synchronized multi-axis interpolation.

Application-side wiring is simplified by an extension board that provides 11.6 V / 300 mA for primary encoder excitation, a separate 5 V / 300 mA rail for secondary encoders, and sixteen digital inputs plus outputs routed through a Digital I/O with SSI interface. The SSI line terminates on an RJ11 plug. Internal consumption tops out at 26 W, so cabinet heat rise remains low even with full I/O expansion. Functional safety is implemented in hardware through I/O Safety Technology, energized from an independent 24 V DC safety supply, so the axis can achieve STO or SS1 without delaying the main control task.