Product Description:

The CDB01.1C-SE-EN1-EN2-EN2-EN2-NN-S-NN-FW is a modular drive control card produced by Bosch Rexroth Indramat for the CDB Control Units series. As a plug-in component for IndraDrive power sections, it executes motion processing, feedback evaluation, and fieldbus exchange so that connected axes follow commanded profiles in industrial automation cells. The card forms the command layer between higher-level PLCs and servo inverters, converting network telegrams into precise current and position loops for each motor it supervises. This arrangement lets the control section coordinate axis behavior while the matching power stage delivers motor current to the connected drives.

At its core, the unit manages 2 axes and communicates over SERCOS II, which provides synchronized position updates in every cycle. When the 24 V service rail rises, an internal reserve circuit draws a 6 A surge for no more than 60 ms before settling to the continuous demand of the logic and encoder supplies. Steady operation requires an external control voltage of DC 19 to 30 V, while the relay coil and I/O use the same source. The EN1 interface supports resolvers or high-speed feedback devices, delivering 18.2 Vpp at 4 kHz for resolver excitation and providing an 8 VDC, 250 mA supply for HSF transducers.

The signal layer includes 2 × 5 V, 1 mA analog outputs that can transmit velocity or torque references to external actuators. Feedback flexibility is increased by the 1× EN1, 3× EN2 arrangement, and each EN2 channel supports EnDat 2.1, 1 Vpp, 5 V TTL encoders while sourcing 350 mA from the regulated 5.0 VDC line. The card’s protective contact set is rated for 24 VDC, 1 A, allowing fault indication or drive-ready signaling to be wired without external relays. Separate connectors for excitation, supply, and signal paths help keep wiring organized and reduce unwanted electromagnetic coupling inside the cabinet.