Product Description:

The CSH02.1B-ET-EC-EC-S4-NN-NN-FW is an automation controller produced by Bosch Rexroth Indramat for the CSH Advanced Controllers series. Within a drive cabinet, it coordinates motion axes, exchanges process data, and supervises built-in safety functions in servo applications. By combining Multi-Ethernet fieldbus access with dual multi-encoder channels, the unit links drives, sensors, and higher-level PLCs so that positioning, speed regulation, and Safe Motion monitoring are handled in one compact control platform.

The controller offers two analog outputs, and each completes a full-scale value change in 750 µs so setpoints reach the drive without delay. Output granularity is 24 mV per increment, allowing fine voltage steps when interfacing with analog servo amplifiers. It can directly drive capacitive loads up to 100 nF or resistive loads of 2 kΩ, eliminating external buffers for most feedback loops. The base electronics draw 17 W, which helps reduce heat inside densely populated cabinets. Additional power budgets are limited to 1.1 W for the multi-encoder board, 2.7 W for the multi-Ethernet board, and 2.5 W for the Safe Motion module, so the total supply requirement remains modest when every option slot is populated.

The controller provides 11 digital inputs for fast limit switches and interlocks, so discrete status bits reach the application layer without external I/O cards. Both the primary control circuit and the UN3 auxiliary rail accept DC 24 V, which simplifies power distribution inside the cabinet. Cabinet planning benefits from a depth of 49.5 mm and a front width of 103 mm, letting multiple controllers share a narrow rack. The Multi-Ethernet interface supports standard industrial protocols, while the twin multi-encoder ports accommodate incremental, Hiperface, EnDat, or SSI transducers for mixed feedback devices. The Safe Motion module supplies SIL-rated functions such as safely limited speed without relying on external relays.