Product Description:

The CSB02.1B-ET-EC-NN-SB-DA-NN-FW is a single-axis drive controller manufactured by Bosch Rexroth Indramat as part of the CSB Drive Controllers series. It closes velocity, torque, and position loops for one motor while exchanging process data with higher-level PLCs over standard industrial Ethernet. Within automated assembly lines or packaging machines, the unit’s role is to regulate motor behavior and to forward diagnostic information so that motion sequences remain synchronized with plant control logic.

Its analog reference channel spans ±10 V, allowing direct connection to proportional valves or feedback transducers without extra signal conditioning. Internal electronics draw only 17 W, reducing enclosure heat load and simplifying power-supply sizing. Network traffic is handled through a Multi-Ethernet interface that auto-selects SERCOS III, EtherCAT, EtherNet/IP, or PROFINET IO; physical cabling terminates on an RJ-45 connector that complies with 100Base-TX signaling. Each of the programmable transistor outputs can source up to 500 mA, so stack-light segments or brake relays can be driven directly. Position feedback is accepted through the multi-encoder port, which provides a stabilized excitation of 5 V and an alternate 12 V rail for resolvers or SSI sensors requiring higher supply voltage.

Logic power for the controller is delivered at DC 24 V, and the inrush current stays below 5 A, keeping auxiliary supplies within standard ratings. Functional safety is supported via the integrated Safe Motion Bus, giving STO and speed-related safeguards without additional wiring complexity. An onboard changeover contact can switch loads up to 30 V at 1 A, which is suitable for enabling brakes, fans, or coolant valves. When extra machine signals are needed, the I/O extension slot accepts digital or analog modules so that the base controller can accommodate application-specific sensors and actuators without increasing panel depth.