Product Description:

The CSB02.1B-ET-EC-EP-L3-EC-NN-AW is a drive controller produced by Bosch Rexroth Indramat within the CSB Drive Controllers series. It occupies the command layer in an automation cell, converting fieldbus data into precise power-stage directives for connected servo or induction motors. By combining motion coordination, feedback processing, and integrated safety, the unit streamlines cabinet layouts and reduces wiring in multi-axis assemblies across packaging, printing, and material-handling lines. This role lets one control platform supervise axis behavior while passing consistent commands to the connected drive hardware.

The controller accepts command references through an analog input channel that spans ±10 V, allowing proportional speed or torque targets from PLC transducers. Eleven discrete control signals can be wired to its digital input block; the count of 11 covers homing sensors, quick-stop triggers, and mode selections without requiring extra I/O modules. Network traffic is handled by a Multi-Ethernet module, so EtherCAT, SERCOS III, or PROFINET telegrams can be processed through the same communication platform. For personnel protection, the controller supports hardware-based Safe Torque Off; the notation STO means power to the motor phases is cut within milliseconds when the safety chain opens. Physical attachment to the plant network is through an RJ-45, 8-pin jack that simplifies standard patch-cable use.

Process feedback leaves the unit through two voltage outputs; the count of 2 channels can report measured speed or alarm thresholds directly to external chart recorders. Three differential input paths accommodate feedback loops from pressure or tension sensors, with the figure 3 matching the controller’s internal sampling engines for simultaneous acquisition. For position devices powered at 12 V, the multi-encoder supply delivers up to 500 mA, ensuring absolute encoders and secondary tacho interfaces remain stable during cold starts. Auxiliary relays on the front panel are rated for switching logic-level loads up to 30 V, so blower-enable circuits or brake-release coils can be driven without interposing contactors. These interface options support closed-loop monitoring while keeping external signal routing straightforward.