Product Description:

The CSH02.1B-ET-EC-EC-L3-EC-NN-FW belongs to the CSH Advanced Controllers series produced by Bosch Rexroth Indramat. It is a compact motion-control unit used to coordinate drives, manage feedback devices, and forward field data across an automation cell. By combining axis processing, safety logic, and multi-protocol networking, the controller serves as a central element that links servo drives with higher-level PLC or SCADA systems. Its compact format helps place motion control close to the rest of the drive hardware inside a cabinet.

The analog section accepts input signals up to 1.3 kHz, allowing fast sensor loops, while its output step size of 24 mV/incr supports fine voltage modulation. Network traffic is handled through a Multi-Ethernet port set that supports several industrial protocols without additional hardware. When it processes encoder feedback, the sine interpolation path is filtered at 400 kHz, while square-wave tracks can be decoded at up to 1000 kHz. The encoder section supports three interfaces, so the controller can accept multiple feedback sources in one platform. These digital limits let the feedback channels track high-speed motors over cable runs as long as 75 m using 1 Vpp signals. The resolver excitation is fixed at 8 kHz to keep rotor position reporting synchronous with the internal sampling rate.

Total supply demand stays under 6 W for the encoders and peaks at 24 W for the entire controller, so cabinet power allocation is minimal. Discrete control is provided by two relays that can switch loads up to 1000 mA, while standard logic outputs source 500 mA and inputs register above 15 V. These control channels allow the unit to exchange ready, fault, and interlock signals with surrounding machine circuits. The integrated safety layer implements STO (Safe Torque Off); its channels accept signals above 11 V and supply 350 mA for feedback to the drive, removing motor power without affecting field diagnostics.