Product Description:

The CSH01.1C-ET-ENS-EN2-MEM-NN-S-NN-FW is a single-axis control module produced by Bosch Rexroth Indramat within the CSH Advanced Controllers series. It is intended for mounting in IndraDrive servo inverters where it manages feedback processing, fieldbus communication, and gate signals required for coordinated motion. By combining multiple encoder formats with integrated Ethernet options, the unit provides a compact interface between the drive, the motor, and higher-level PLCs in industrial automation. This arrangement lets one module handle motion-related communication and feedback tasks without requiring separate interface hardware.

This controller draws a base load of 7.5 W from the drive backplane and accepts a control supply of DC 24 V, so auxiliary sources can be sized accurately. A short surge of 4 A occurs at power-up as the inrush current, after which consumption returns to steady values. The built-in En2 converter resolves feedback signals with a width of 12-bit and terminates the line with 120 ohms, which supports secondary encoder processing and proper line matching on that port. Its timing hardware allows output pulses up to 100 ms wide, and the MEM channel can source 20 mA so differential outputs reach logic thresholds without external drivers. The ENS rail provides 500 mA for sensor excitation and keeps this current separated from the power stage.

Network connectivity is handled by the integrated interface that supports 100Base-TX (IEEE 802.3u) signaling through an eight-pin RJ-45 jack, and cable runs can extend to 100 m without repeaters. Protocols include Sercos III, EtherCAT, EtherNet/IP, and PROFINET, allowing the controller to join different automation topologies through the same onboard connection. The ENS domain stabilizes peripheral electronics with a reference of 11.6 V, while the MEM output can switch commands at frequencies up to 1 MHz for high-speed position latching. Primary feedback arrives through IndraDyn, HIPERFACE, 1 Vss, or TTL formats on encoder port 1, and a second port accepts EnDat 2.1, 1 Vss, or TTL signals for mixed encoder operation without additional hardware.