Product Description:

The CSB02.5B-ET-EC-EC-L3-NN-NN-NW belongs to the CSB Drive Controllers series produced by Bosch Rexroth Indramat. Designed for multi-axis servo applications, this compact controller processes motion commands, coordinates feedback from multiple encoders, and distributes power to motors and field devices. Within an automation cell it acts as the interface between higher-level PLCs and the actuators, executing drive profiles, enforcing safety states, and forwarding diagnostic data over real-time Ethernet networks.

The analog front end supports a bandwidth of 1.3 kHz, letting the drive react quickly to reference changes without excessive phase lag. Position or torque references enter the controller with 14-bit resolution, ensuring that small command steps translate into measurable motor movement. When the application needs an analog retransmission, the output channel resolves steps of 24 mV/incr, so external recorders or meters see a smooth signal. Drive-internal logic sources up to 500 mA of current on each digital output, enough to energize contactors or status lamps directly. Even with all communication and I/O active, the electronic section draws only 17 W from the control supply, easing cabinet thermal design and minimizing UPS loading during power interruptions.

The high-speed processing described above is backed by a Multi-Ethernet stack that natively exchanges cyclic data on EtherCAT, EtherNet/IP, PROFINET IO, sercos III without additional option cards. Safe motion is enforced by the certified STO function; its dual channels can sink up to 350 mA for feedback-monitored contactor coils, allowing the axis to enter a torque-free state within milliseconds. For application wiring the X35 terminal provides 4 DI/DO, 4 DI, 2 AI, 2 AO, enabling local sensors and actuators to connect directly to the drive rather than to remote I/O slices.