Product Description:

The CSB02.1B-ET-EC-EP-NN-DA-NN-AW is a compact controller module built by Bosch Rexroth Indramat within the CSB Drive Controllers series. It is intended to command servo drives and peripheral I/O in automated machinery, converting motion commands from the higher-level PLC into precise current, position, and velocity instructions for connected axes. By combining power stage supervision with integrated sensor and fieldbus interfaces, the unit helps coordinate multi-axis lines, packaging cells, and material-handling stations in real time.

This controller runs from a logic supply of 24 VDC, allowing it to share standard control cabinet power rails. For current-loop feedback, the analog current inputs are digitized at 12-bit resolution, while each analog output changes by 24 mV per increment to modulate external devices such as proportional valves. The unit has 11 digital inputs, allowing direct wiring of limit switches or proximity sensors without extra terminal blocks. Network access is provided through an 8-pin RJ-45 connector that brings the Ethernet port to the front edge of the unit for easy patch cord replacement. Additional resources include two analog outputs, three analog voltage inputs, two probe inputs for position capture, and up to two analog current inputs so that displacement, pressure, or temperature transducers can be sampled in parallel.

Data exchange over the plant backbone follows the 100Base-TX standard, so the module can stream status words at 100 Mbit/s to drive-based diagnostic tools. Two internal relays switch loads up to 1000 mA at 30 V, letting the axis controller energize brakes or contactors directly. High-resolution position feedback is supported because the encoder supply provides 5 V or 12 V, feedback is processed at up to 14-bit resolution, and the current budget for each encoder line is 500 mA.