Product Description:

The CDB01.1C-SE-EN2-EN2-EN2-EN2-L2-S-NN-FW is a modular control unit released by Bosch Rexroth Indramat within the CDB Control Units series. Designed for IndraDrive drive packages, it acts as the central motion processor, accepting encoder feedback and fieldbus commands to coordinate servo axes in automated machinery. By integrating communication, safety, and I/O resources on a pluggable card, the module simplifies cabinet layouts and minimizes wiring during system expansion. It is typically mounted inside control cabinets for packaging lines, material handling systems, and robotic stations where synchronized multi-axis positioning is required.

This control unit supports 2 drive axes and exchanges setpoints over Sercos II, giving deterministic communication between the controller and drives. Its front panel carries analog outputs rated at 5 V, 1 mA for velocity or torque references, while digital inputs accept 24 V, 3 mA signals from limit switches or sensors. Actuator commands can be sent through digital outputs that source up to 24 V, 0.5 A. Four EN2 encoder sockets are present, each handling EnDat 2.1, 1 Vpp, or 5 V TTL incremental formats, so the unit can close loops with different feedback devices. A dedicated RS232 service port enables parameter loading and diagnostics without occupying the real-time network. Typical inrush current is 6 A, which affects cabinet fuse sizing during power-up.

Each EN2 channel is protected by a load resistance of 35 ohms and can supply the transducer with 350 mA at 5.0 V to maintain clean differential signals over long cables. The internal timing logic filters incoming pulses down to a maximum width of 60 ms, preventing erroneous state changes from slow contacts. For personnel protection, the module carries the certified safety function Safe Torque Off, which disables power stages through redundant hardware paths instead of relying on software commands. These interfaces allow simultaneous monitoring of multiple linear or rotary axes without additional expansion cards, helping keep cycle times consistent as the machine scales.