Product Description:

The CDB01.1C-SE-EN2-EN2-NNN-MEM-NN-S-NN-FW is a double-axis control section produced by Bosch Rexroth Indramat for the CDB Control Units series. Installed inside IndraDrive drive stacks, the unit coordinates power stages and motion feedback for servo axes in automated machinery. By exchanging real-time data with the higher-level PLC, the control section issues velocity, torque, and position commands for synchronized multi-axis motion. Its dual-axis layout lets one module manage paired motion channels within a compact drive assembly.

At startup, the unit draws only 24 V logic power, and its consumption is limited to 25 W, allowing low-current power supplies to feed the control electronics. It governs 2 servo axes and exchanges cyclic setpoints over the SERCOS II fiber ring, providing deterministic command timing between the controller and drive. For analog diagnostics, it sources 1 mA per channel, with a converter granularity of 19.5 mV/inc, so external meters can read drive variables without loading the circuitry. Two feedback sockets accept EnDat 2.1, 1 Vpp, or 5 V TTL signals. The encoder rails supply 5 V within ±5% at 350 mA to power the sensors, and a separate dual probe interface captures edge events with a 4 µs pulse width for position latching.

Additional signal emulation supports verification and diagnostic work. The differential output can drive 1 MHz square waves at 20 mA over a simulated cable distance of 40 m, enabling motion traces without running the actual machine. When power is applied, the logic draws an inrush of 6 A that lasts 60 ms, so the supply path must tolerate that brief surge. A form-C relay rated for 24 V DC at 1 A provides galvanic isolation for ready-state signaling. The remaining digital capture ports operate independently of the emulation circuit, so high-speed edge detection stays available while test signals are active.