Product Description:

The CSB02.1B-ET-EC-EP-S4-NN-NN-FW drive controller is produced by Bosch Rexroth Indramat within the CSB Drive Controllers series for use in coordinated motion systems. It supervises motion for a single servo axis, generates fieldbus diagnostics, and applies internal safety logic that ties directly into machine sequencing during normal operation and stop events. When installed in an enclosure, the unit issues torque and velocity commands to the connected motor, monitors feedback, and adjusts gains through software settings rather than manual trim, which reduces wiring and shortens setup time in packaging, assembly, and other industrial automation applications.

This controller supports a single-axis configuration, so all processor resources are dedicated to one drive channel for deterministic response in compact control architectures. Logic electronics draw from a DC 24 V base supply, and the input surge remains below 5 A, which limits stress on cabinet power supplies during energization. The controller has 11 digital inputs, allowing direct connection of limit switches, probes, or enable lines from machine-level signals without external expansion. It also provides 3 optional interface slots for feedback, I/O, or communication plug-ins, and each input edge can be captured with a maximum pulse width of 1 ms for reliable high-speed registration when the axis passes sensors at production speed.

Internal consumption of 17 W keeps heat generation low, while a Multi-Ethernet stack lets the device join EtherNet/IP, PROFINET, or SERCOS III networks from the same hardware without changing the base unit. The embedded Ethernet port uses a RJ-45, 8-pin connector that meets 100Base-TX (IEEE 802.3u) signaling for standard industrial cabling, and the optional network LEDs and PHY draw only 2.7 W of auxiliary power. For actuators that require status relays or interlocks, the safe output channel can deliver up to 350 mA and is coordinated by the Safe Motion function set. Communication and safety functions are integrated into the control unit instead of relying on separate external modules mounted in the same control cabinet.