Product Description:

The CDB01.1C-SE-ENS-EN2-EN2-NNN-S2-S-NN-FW control section belongs to the CDB Control Units series from Bosch Rexroth Indramat. As a plug-in module for IndraDrive power sections, it serves as the logic and interface layer that coordinates closed-loop servo operation in multi-axis machinery. The unit integrates fieldbus communication, encoder evaluation, and built-in safety so that motion sequences can be synchronized with PLC commands in packaging lines, printing presses, or material-handling stations. By separating the control electronics from the power stage, the design allows flexible axis counts while keeping the drive layout modular.

The control section manages 2 motion axes and draws only 9 W at idle, which helps reduce cabinet heat when motors are disabled. Command data are exchanged over the SERCOS II fiber-optic bus, which provides deterministic 62.5 µs telegram cycles for velocity and torque setpoints. The first feedback channel supplies encoders with 12 V, and it accepts IndraDyn, Hiperface, or 1 Vpp sinusoidal signals for high-resolution position capture without external adapters. When 24 V control power is applied, the module experiences an inrush of 6 A, so the upstream supply must tolerate this brief surge. Internal capacitors charge quickly, after which the SERCOS daughterboard consumes an additional 2 W to sustain ring integrity.

Secondary feedback ports deliver 5 V to EnDat 2.1, 1 Vpp, or 5 V TTL transducers. The maximum output pulse width is 60 ms, which matches the STO response window used in presses and gantries. The integrated SafeLogic circuitry supports the Safe Motion function, and all safety paths are wired through a D-Sub 9-pin female connector. Inputs are rated at 24 V and 3 mA, while dual outputs can switch 24 V at 0.5 A. System electronics are powered from the machine’s DC 24 V supply, which keeps the drive operational during mains removal for controlled deceleration.