Product Description:

The CDB01.1C-SE-ENS-ENS-ENS-NNN-NN-S-NN-FW is a modular control unit manufactured by Bosch Rexroth Indramat for multi-axis drive applications in industrial automation. It belongs to the CDB Control Units series and serves as the plug-in command section for a compatible power module, coordinating motion tasks, feedback handling, and I/O exchange within the drive system. Designed for cabinets that rely on fiber-optic SERCOS networks, the unit provides the real-time processing and interface resources needed to manage drive functions, handle analog feedback, and distribute digital signals to connected field devices.

The electronics include a 12-bit A/D converter that digitizes external analog references. Those inputs are filtered over an analog bandwidth of 2 kHz, and their high-impedance path is maintained by a resistance of 180 kΩ so upstream sensors are not heavily loaded. The unit can supervise 2 motion axes, each synchronized through the optical SERCOS II bus. Base consumption is limited to 9 W, which helps reduce heat buildup inside the control cabinet. Command exchange takes place on that bus at 16 MBaud, while local service access is available through an RS-232 port. Three encoder inputs accept IndraDyn, HIPERFACE, or 1 Vpp feedback formats so the control section can work with common servo feedback devices without extra conversion hardware.

In addition to its conversion and motion-control functions, the control unit operates from a DC 24 V logic supply and draws an initial inrush of 6 A for no longer than 60 ms. Each transistorized output point sources up to 500 mA, while the combined current per output group is limited to 1000 mA. The driver stage can discharge 400 mJ of inductive energy without damage when connected loads are switched off. The unit does not include integrated functional safety. After the inrush interval, base current settles and the fieldbus channel continues normal cyclic exchange during routine operation. Start-up diagnostics remain accessible through the maintenance port, allowing status checks without interrupting the main control architecture.