Product Description:

The CDB01.1C-S3-ENS-ENS-EN2-MA1-L2-S-NN-FW is a motion-control unit manufactured by Bosch Rexroth Indramat within the CDB Control Units series. It functions as the command section of an IndraDrive system, generating the current, speed, and position loops that regulate connected servo and induction motors. Through integrated SERCOS III real-time networking, the device links drives, I/O, and PLC resources so coordinated axis movement, torque limiting, and emergency shutdown can be carried out in automated production lines.

The unit provides an analog interface that accepts and sources signals over a ±10 V span, and each channel converts data with 12-bit resolution to supplement fieldbus commands. Inside the control card, the current loop refreshes every 125 µs, and this high update rate shapes motor phase currents with minimal ripple. Velocity corrections run on a 250 µs cycle so speed errors are trimmed quickly after load changes. Functional safety is embedded through Safe Torque Off circuitry evaluated to SIL 3 / Cat. 3 PL e, removing drive power without extra relays when an interlock is triggered. The module communicates with feedback devices over IndraDyn, Hiperface, TTL, and 1 Vpp formats on encoder ports 1 and 2, while port 3 adds EnDat 2.1 for high-resolution absolute position data. Separate internal supplies deliver 11.6 V to the ENS sensor port and 5.0 V to the EN2 channel to maintain signal integrity.

The board provides two differential analog inputs and two analog outputs, so external potentiometers, pressure sensors, or actuator setpoints can bypass the network when required. All logic sections draw from a 24 V DC control bus, and the position loop closes every 500 µs to keep commanded paths within tight tolerance. Ethernet connectivity uses a 100Base-TX S3 link, simplifying wiring through standard Cat-5e cables. The housing measures 322.6 × 49.5 × 103 mm, allowing side-by-side mounting in compact cabinets. The 24-bit IndraDyn feedback and sub-millisecond loop times support precise indexing, electronic gearing, and camming in packaging, printing, and material-handling equipment.