Product Description:

The CSB02.1B-ET-EC-EP-L3-NN-NN-AW is a single-axis drive controller produced by Bosch Rexroth Indramat within the CSB Drive Controllers series. Designed for cabinet installation, the unit supplies regulated power to servo or induction motors while coordinating feedback devices through an integrated encoder interface. In industrial automation, it links motion hardware to higher-level PLCs and executes speed, position, and safety commands so that conveyor sections, pick-and-place stations, or process axes can be synchronized with minimal external wiring.

The controller’s base electronics draw 17 W, so heat contribution stays low in packed panels. Two analog channels accept and deliver signals within a range of ±10 V, allowing connection of torque references without additional scaling hardware. Sensor feedback is handled by a multi-encoder interface that can furnish either 12 V or 5 V excitation, and each rail can supply up to 500 mA for optical, magnetic, or inductive encoders. The controller has 11 digital inputs for limit switches, probe triggers, or mode selection. Command and diagnostic traffic are transported over Multi-Ethernet, and the front panel provides an 8-pin RJ-45 connector that operates on the 100Base-TX physical layer for deterministic communication to Sercos over EtherCAT, PROFINET, or standard TCP/IP networks.

Firmware level FWA-INDRV*-MPx-18VRS or higher is supported, giving access to integrated safety technology. The unit implements STO, disconnecting the drive’s power stage within milliseconds when a safety gate or light curtain is violated. For peripheral control, a form-C relay can switch loads up to 1000 mA at circuits not exceeding 30 V, making it suitable for brake release valves or contactor logic. Encoder supply capacity is limited by a thermal ceiling of 6 W, so power budgeting must consider total cable length and sensor type.