Product Description:

The CDB01.1C-S3-ENS-EN1-NNN-NNN-L2-S-NN-FW is a modular control section manufactured by Bosch Rexroth Indramat and supplied within the CDB Control Units series. Designed to plug onto IndraDrive power modules, the board provides command processing, fieldbus connectivity, and safety supervision for servo axes. It translates motion profiles from PLCs into finely timed current and position references while collecting status feedback from the drive. In automated assembly, packaging, or material-handling lines, the module coordinates deterministic multi-axis movement and shuts down torque when a safety event is detected. This arrangement allows the control section to manage communication and feedback tasks directly at the drive.

At startup, the board briefly pulls an inrush current of 6 A for 60 ms, which must be considered when sizing protection for the 24 V supply rail. Once energized, it maintains a base consumption of 9 W, helping keep cabinet thermal load moderate during continuous operation. Command traffic is exchanged through the integrated RJ-45 port running SERCOS III, so cycle-time-critical data use an Ethernet physical layer while retaining synchronous timing. Each digital sink output can switch up to 500 mA, allowing the unit to operate contactors or signal lamps directly, while the digital inputs require only 3 mA and place a light load on connected sensors. This supports compact control cabinets where multiple low-voltage devices share the same control infrastructure.

For position feedback, Encoder Channel 1 supports differential analog and digital formats—1 Vpp / HIPERFACE / EnDat 2.1 / 5 V-TTL—and it is powered from 12 VDC. Channel 2 accepts a resolver or HSF transducer; the optional HSF coil receives 8 VDC, while the resolver reference is 18.2 Vpp. Motion shutdown is handled by the integrated Safe Torque Off function, which removes drive gating without delaying mechanical brake release energy. Additional circuitry includes a relay contact rated at 24 VDC and 1 A with an inductive load absorption capacity of 400 mJ, and service diagnostics connect over the onboard RS232 interface.