Product Description:

The CDB02.1B-ET-EC-EC-EM-L3-L3-NN-NN-FW control unit belongs to the CDB Control Units series from Bosch Rexroth Indramat. As a modular two-axis controller core, it coordinates drive power sections and fieldbus links inside IndraDrive assemblies. Within an automation cell, it conditions analog references, processes multi-encoder feedback, and closes position loops so that conveyors, pick-and-place stations, or form-fill-seal axes track commanded motion profiles with deterministic timing.

The board draws its logic power from a DC 24 V source and supports two ±10 V analog inputs plus two ±10 V analog outputs. Each output can drive a load of 2 kΩ and has a resolution of 24 mV/incr, making it suitable for reference generation to external regulators. For machine sequencing, the unit provides 14 digital inputs and 8 configurable DIO lines that can be mapped to limit switches, cam signals, or user events. The dual-axis architecture allows simultaneous interpolation of both channels while four probe inputs capture edge-aligned position data for quality inspection. SSI as well as absolute or incremental encoder formats can be retransmitted to downstream devices through the built-in emulation feature, maintaining common position information across multiple control layers.

Network connectivity is handled on a 100Base-TX link that terminates at a RJ-45 (8-pin) receptacle. Sercos III, EtherCAT, EtherNet/IP, and PROFINET IO protocols operate on this physical layer, so the unit can serve heterogeneous production networks without additional gateways. Two independent safety channels deliver a 2 x STO function that removes drive torque while preserving encoder feedback for rapid restart routines. Feedback wiring is simplified by the presence of a 2 x Multi-encoder interface, enabling redundant position sources or dual-loop control without extra hardware. The unit closes high-speed motion loops while exchanging status data and diagnostics with supervisory PLCs.