Product Description:

The CSB02.5B-ET-EC-PB-L3-NN-NN-NW is a modular drive controller manufactured by Bosch Rexroth Indramat within the CSB Drive Controllers series. It coordinates power conversion, feedback evaluation, and motion commands for servo and asynchronous axes, linking machinery to higher-level PLC or motion platforms through integrated fieldbus and Ethernet ports. In an automation cell, it serves as the core regulating element, translating position or torque references into precise current patterns that keep packaging, handling, or assembly processes on time.

The controller provides 11 digital inputs for limit switches and discrete sensor states. It also has 3 selectable analog channels that accept control or feedback signals across a ±10 V range, and each channel is digitized with 14-bit resolution to support fine velocity or torque scaling. For outbound status or process variables, the unit provides 2 analog outputs. This mix of high-resolution analog processing and digital I/O allows the controller to support installations where legacy voltage transducers operate alongside modern serial feedback.

The internal 24 V rail supplies external devices with up to 500 mA, while an independent L3 source is limited to 350 mA for brake relays or small fans. EC auxiliary power consumption is capped at 6 W, which helps limit added heat inside the cabinet. Functional safety is addressed by the single-channel STO feature that removes motor torque without powering down the control logic. Communication is handled by a Multi-Ethernet core supporting sercos III, EtherCAT, EtherNet/IP, and PROFINET IO, and a dedicated PROFIBUS interface supports legacy network connections. Two probe inputs capture precise position marks, three optional slots house expansion cards, and a multi-encoder interface recognizes resolver, EnDat, and Hiperface feedback formats for closed-loop accuracy.