Product Description:

The CSB02.1B-ET-EC-EP-S4-EM-NN-FW is a control section produced by Bosch Rexroth Indramat for the modular CSB Drive Controllers series. In an automation cabinet, it mounts beside an HCS or HMS power module to govern synchronous or asynchronous motors. The card processes fieldbus commands, sensor feedback, and safety channels, then distributes real-time setpoints so packaging lines, material-handling systems, and presses maintain repeatable speed, torque, and position under PLC supervision.

Its analog front end tolerates an input swing of ±30 V, while the commanded working range is limited to ±10 V so external process signals remain inside the linear region of the converters. A resolution of 13-bit provides 8192 discrete steps, and a bandwidth of 1.3 kHz helps velocity or force references pass without noticeable lag. For higher-level communication, the controller integrates a Multi-Ethernet interface that can be set to SERCOS, EtherNet/IP, PROFINET, or EtherCAT as required. The board connects to HCS02, HCS03, HCS04, HMS01, and HMS02 power sections through the integrated backplane. Motor position data is received through a D-Sub 15-pin female encoder connector, and the S4 variant does not support resolver feedback.

The Ethernet terminal marked ET complies with 100Base-TX IEEE 802.3u and uses a shielded RJ-45, 8-pin receptacle for direct patch-cable wiring to switches or programmable controllers. A form-C relay is available for brake release or contactor signaling, and it can switch up to 1000 mA at a maximum of 30 V DC. Integrated diagnostics work with the controller’s Safe Motion technology to support functional safety functions such as STO, SOS, and SLS without external relays. These functions allow the control section to manage motion-related safety tasks while remaining integrated with the larger modular drive system.