Product Description:

The CSH02.5B-ET-EC-EC-L3-EC-NN-NW is a motion-control platform manufactured by Bosch Rexroth Indramat and supplied within the CSH Advanced Controllers series. Designed to mount on an HMU05 power section, the unit coordinates drive functions and fieldbus exchanges for a single servo axis in automated machinery. By combining real-time processing with integrated safety, it serves as the central command layer between higher-level PLCs and the inverter electronics of the connected motor. It is intended for compact drive systems that need deterministic communication and coordinated control at the axis level.

It controls exactly 1 mechanical axis and exchanges data through the Multi-Ethernet backplane. Two network sockets support line or ring topologies; the first uses an RJ-45, 8-pin interface that accepts standard copper patch cords, while the second can be linked through shielded CAT5e ITP cable. When this twisted-pair link is routed at factory floor level, signal integrity is maintained for lengths up to 100 m in 100Base-TX operation. The controller simultaneously manages Sercos III, EtherCAT, EtherNet/IP, and PROFINET IO telegrams, so it can communicate with several common industrial Ethernet environments without separate gateway hardware. Feedback from auxiliary devices is introduced through a dedicated D-Sub, 15-pin female port reserved for encoder communication.

Three internal sensor channels are present, arranged as 3 × Multi-Encoder, so position, velocity, and secondary feedback devices can be processed without external splitter boards. A local L3 expansion supplies logic power, and its draw is only 1.0 W, which helps limit panel heat when the controller is idling. Functional safety is provided by the integrated Safe Torque Off circuit, which removes drive torque through an IEC 61131 Type 2 input path. That path can be energized up to 350 mA, allowing direct wiring to standard safety relays without additional amplifiers.