Product Description:

The CSB02.1B-ET-EC-PB-S5-NN-NN-AW drive controller is manufactured by Bosch Rexroth Indramat and is part of the CSB Drive Controllers series. It acts as the command processor in industrial automation, exchanging fieldbus messages with central controllers while generating time-coordinated power stage references for connected servo axes. Integrated communication ports and onboard I/O allow motion control, diagnostic, and safety data to be handled inside the same enclosure, reducing wiring complexity in multi-axis machines used on production lines, packaging systems, and material-handling cells.

The controller accepts two differential analog inputs with 13-bit resolution, allowing it to detect small command changes for torque or speed loops. Each of its two analog outputs updates every 750 µs, and the step width is 24 mV per increment, so drive-enable signals can be produced with fine voltage granularity. The unit provides 11 digital inputs for fast limit, homing, or function triggers, and their state can be polled synchronously with the motion cycle. For network coordination, the device includes an RJ-45 jack that follows the 100Base-TX Ethernet standard, enabling deterministic peer-to-peer data exchange with PLCs or supervisory computers. A D-Sub female connector implements Profibus according to DIN EN 50 170.

Base consumption is limited to 17 W, which helps keep cabinet thermal load low when the axes are idle. The controller has 3 optional slots for extension cards used for feedback, additional communication, or encoder evaluation without enlarging the footprint. The integrated safety channel can source up to 350 mA on its Type 1 output, letting it drive contactors or light-curtain relays directly, while the terminals accept 16 AWG conductors to simplify field wiring. For switching devices tied to motion enable, the onboard relay is rated for 1 × 10^8 mechanical cycles, supporting long operating intervals in continuous-duty machines without scheduled replacement.