Product Description:

The CSB01.1C-S3-ENS-MEM-NN-S-NN-FW is a control section built by Bosch Rexroth Indramat for the CSB Drive Controllers series. Intended for a single servo axis, it docks to a power module and manages motion commands, feedback, and fieldbus traffic inside automated equipment. By coordinating real-time communication and signal conditioning, the section acts as the link between a machine PLC and its motor encoder, enabling deterministic positioning in assembly, packaging, and material-handling lines.

The controller exchanges real-time data with the master over SERCOS III and provides a service channel through an RS232 interface for setup or diagnostics. Two Ethernet connectors implement the electrical layer 100Base-TX, and the SERCOS medium is presented on an RJ45 eight-pin port so standard patch cables fit directly. Internal logic and sensor inputs draw power from a machine-supplied 24 V DC rail at up to 1.1 A, so no separate auxiliary supply is needed. Encoders receive a regulated 11.6 V DC reference, and 12-bit position words are decoded to close the speed loop. Because only one axis is managed, parameter sets stay compact and bus load remains low on multi-drive stations.

Signal bandwidth is set by limiting sine encoder processing to 500 kHz, while discrete command inputs accept pulses up to 400 kHz on their TTL lines. The built-in emulator can source differential feedback at 20 mA with carrier rates to 10 MHz; this circuit is galvanically isolated so external test gear cannot inject ground noise. Encoder supply current is capped at 500 mA, and external power is unnecessary because the unit draws all energy from the common 24 V rail. These frequency and current ceilings keep edge detection clean, commutation stable, and heat generation within predictable limits.