Product Description:

The CSB02.1B-ET-EC-EM-SB-NN-NN-FW is a single-axis drive controller manufactured by Bosch Rexroth Indramat for the CSB Drive Controllers series. It conditions set-point data from a supervisory PLC, regulates motor current, and supervises safety feedback, making it a central node in industrial automation cells that require precise, closed-loop motion. Inside the housing are logic, power distribution, and a standard control panel that lets maintenance staff review operating status or alter parameters without external tools.

This controller is powered from a control supply of 24 V DC; at idle it draws only 17 W, reducing cabinet heat and auxiliary power demand. Field networking is handled through the Multi-Ethernet interface, allowing direct connection to EtherNet/IP, PROFINET, or other Ethernet-based protocols without hardware changes. Eleven discrete input terminals accept start, stop, and limit switch signals; the value 11 leaves headroom for perimeter guarding and sensor expansion. Functional safety is implemented through the Safe Motion Bus, so compliant drives and encoders can be chained without additional relays or wiring complexity.

The analog front end includes 3 analog inputs for velocity or torque references and diagnostics, while 2 analog outputs can mirror real-time axis variables for chart recorders or PLC analog cards. A bank of 5 configurable digital I/O can be assigned as command outputs, probe inputs, or handshake lines, and two current-measurement channels monitor motor phase currents for real-time control loops. Three optional slots accept add-on cards such as encoder modules or additional fieldbuses. Encoder emulation requires 1.2 W, and the safety bus consumes 2.5 W, figures that stay within the low-power profile of the base unit. The enclosure weighs 0.800 kg, easing mounting on DIN rails or in tight multi-axis racks without exceeding load limits.