Product Description:

The CSB02.1B-ET-EC-EP-L3-DA-NN-FW is a compact drive controller manufactured by Bosch Rexroth Indramat for the CSB Drive Controllers series. In an automation cell it coordinates motion, processes I/O signals, and passes real-time data between servo drives and higher-level PLCs through its Multi-Ethernet backplane. By combining network routing, encoder evaluation, and user-level safety inside a single rack module, the device streamlines cabinet wiring and shortens control-loop latency in packaging, handling, and assembly lines.

The controller handles analog feedback with an output conversion time of 250 µs, so command voltages reach the drive with negligible delay. Its output word has a 14-bit resolution, providing 16,384 discrete steps for positioning and torque demand. Communication traffic is segregated across 2 Ethernet ports, which support daisy-chain or ring topologies while the Multi-Ethernet stack selects the required protocol at power-up. The probe input can capture encoder-derived position within 4 µs, a timing window suited for print-mark registration and punch presses. Onboard sourcing outputs supply field devices with up to 500 mA per channel, allowing direct actuation of small contactors or indicator lamps without extra relays.

Higher-power signaling is provided by form-C relay contacts that switch up to 1000 mA at circuit potentials not exceeding 30 V. Machine safety is addressed by the integrated Safe Torque Off circuit, which removes drive-enabling energy without altering parameter memory. Two DA analog inputs allow external sensors to bias torque or speed, and the bidirectional pair supports quick calibration routines between axes. Command sequencing is aided by five digital inputs, while 6 digital outputs report motion states, homing status, or fault flags to distributed PLC cards and stack lights without additional interface hardware.