Product Description:

The CSB02.1B-ET-EC-CN-L3-DA-NN-FW is a drive controller produced by Bosch Rexroth Indramat for the CSB Drive Controllers series. The unit integrates power electronics and feedback processing to control a single servo or induction axis in industrial automation. By translating network commands into motor currents and returning encoder data to the PLC, it maintains velocity, position, and torque targets for packaging lines, material-handling gantries, and other motion modules that require coordinated closed-loop performance.

On the measurement side, the controller samples analog feedback with a 13-bit current resolution and a 14-bit voltage resolution, and each analog output is converted within 250 µs to keep latency low. Encoder supply rails are provided at 5 V and 12 V, each delivering 500 mA, so incremental, absolute, or resolver sensors can be powered without external regulators. The resolver channel excites the rotor at 8 kHz, and its sine-cosine signals are digitized through a 12-bit converter before position calculations. Two analog inputs and two analog outputs share the DA connector, which also provides six digital inputs, six digital outputs, and two bidirectional lines. Every digital output can source 500 mA for contactors or indicator lamps.

The communication layer combines CANopen fieldbus communication with a Multi-Ethernet interface. The CAN segment can address up to 127 nodes and uses an internal 120 ohm termination resistor when the last-node switch is engaged. The Ethernet backplane supports Sercos III, EtherCAT, EtherNet/IP, or PROFINET IO without hardware changes. Safe Torque Off is integrated as STO (Safe Torque Off), de-energizing the motor through dual-channel logic during emergency stop events. These communication and safety functions support synchronized motion and diagnostics, while the local analog and digital I/O handle interlocks and transducer signals.