Product Description:

The CDB02.1B-ET-EC-EC-EC-S5-S5-EC-NN-FW is a control section from the CDB Control Units series manufactured by Bosch Rexroth Indramat. Installed inside IndraDrive drive stacks, it coordinates two servo axes, handles local I/O, and links the motion system to higher-level PLCs. By combining drive regulation, safety, and fieldbus communication on one plug-in card, the unit streamlines cabinet layouts in general automation, material handling, and packaging cells.

This control section accepts analog reference signals within a range of ±10 V, and the 2 analog inputs can be used for external speed or torque commands. It also provides two analog outputs with the same ±10 V span for transducer feedback or cascaded drive control. Digital connectivity starts with 14 digital inputs for limit switches or homing sensors and extends to 8 configurable digital I/O that can be reassigned for process-controlled events. The board is energized through a 24 V DC control supply that keeps logic active during mains dropouts. Multi-Ethernet hardware supports sercos III, EtherCAT, EtherNet/IP, and PROFINET IO, while four encoder interfaces allow incremental, SSI, EnDat, or Hiperface feedback to be mixed on the same drive. Four probe inputs capture sub-microsecond position latches, and the card carries safe I/O blocks of two inputs and two outputs per axis for emergency stop chains.

Its dual-channel architecture provides 2-axis capability with coordinated position loops, yet draws only 23 W from the control bus, reducing panel heat. Integrated Safe Motion functions up to Safe Motion S5 supervise speed, position, and standstill without external relays. The onboard relay contacts switch loads up to 1000 mA for brake release or motor contactor control. Encoder counts, probe events, and network telegrams are processed in hardware so that the host PLC receives deterministic status updates while the drive carries out real-time interpolation.