Product Description:

The CSH02.5B-ET-EC-EC-L3-NN-NN-FW is a modular motion controller manufactured by Bosch Rexroth Indramat in the CSH Advanced Controllers series. It directs torque, speed, and position loops for multiple servo axes while exchanging data with higher-level PLCs over industrial Ethernet backbones. The unit is intended for coordinated motion systems where several axes must share control, feedback, and safety functions within one control platform. Onboard encoder processing and integrated safety circuitry allow machine builders to consolidate feedback evaluation and safety shutdown logic into a single rack-mountable unit.

The controller links to factory networks through a Multi-Ethernet interface, so the same hardware can operate on PROFINET, EtherNet/IP, or EtherCAT lines without a hardware change. The interface uses two dedicated RJ45 jacks and provides 2 independent communication ports, so field and service channels can be wired separately. This separation keeps routine control traffic apart from auxiliary network connections. For discrete signaling, the baseboard offers 11 digital inputs that accept 24 V logic from sensors or PLC output cards. Power consumption remains low because the EC option card draws only 1.1 W, while the ET communication card adds just 2.7 W. Both encoder channels are universal multi-encoder interfaces that accept MSM, MSK, 1 Vpp, HIPERFACE, EnDat 2.1, SSI, or resolver feedback, and a D-Sub 15-pin female connector is provided for quick hookup.

Network compliance follows the IEEE 802.3 standard, allowing standard Category-5e cabling for the full segment length. For motors equipped with MSM feedback, the permitted cable run is 40 m maximum, while 1 Vpp encoders may be routed up to 75 m without signal repeaters. The built-in safety layer executes a Safe Torque Off function that removes drive-enable signals in less than a millisecond, and its STO output can switch up to 350 mA, which allows direct connection to most emergency-stop relays. The L3 I/O module consumes 1.0 W and adds two probe inputs for edge-aligned position capture during synchronized motion. These probe inputs support registration tasks that depend on accurately timed position capture.