Product Description:

The CSB02.1B-ET-EC-EC-S4-DA-NN-AW is a drive controller from Bosch Rexroth Indramat that belongs to the CSB Drive Controllers series. It governs servo axes in automated machinery, combining power electronics with signal processing so that commanded motion follows the profile generated by a PLC or CNC. This type of controller is used where coordinated positioning and stable closed-loop speed control are required during continuous machine operation.

The unit exchanges data over a Multi-Ethernet backbone, and each network cable terminates on a front-panel RJ-45, 8-pin jack that conforms to the IEEE 802.3u Fast Ethernet standard. Inside the DA section, two analog inputs and two analog outputs handle ±10 V process signals, while two configurable I/O points allow voltage or current to be sensed or driven as needed. Six discrete DA inputs combine with five additional terminals to reach 11 digital inputs overall, giving the drive direct access to external limit switches, sensors, or control relays. Three plug-in positions accept option cards, so features such as fieldbus gateways or encoder extensions can be added later, and the availability of 3 optional slots supports that expansion. Both 5 V and 12 V encoder rails deliver 500 mA each, allowing the controller to power typical incremental or absolute feedback devices without an external supply.

Cycle synchronization is aided by probe channels that register feedback edges within 4 µs, and two probe inputs are provided for this purpose. The integrated relay can switch auxiliary loads up to 1000 mA at circuit potentials not exceeding 30 V, which simplifies interlock wiring for brakes or contactors. Functional safety is delivered through the drive’s Safe Motion technology, which executes hardware-based velocity and position monitoring independent of the main control task. The probe inputs support precise event capture from external sensors, and the relay output can be used where a controlled switching signal is needed within the axis system.