Product Description:

The CDB01.1C-ET-EN2-EN2-NNN-NNN-NN-S-NN-FW control section is produced by Bosch Rexroth Indramat as part of the CDB Control Units series. It supervises motion in industrial automation systems by executing drive commands, processing encoder feedback, and handling communication with upper-level controllers. Within a multi-axis machine, the unit coordinates position regulation and fault monitoring for each connected drive, establishing a reliable interface between field devices and supervisory control software.

Internally, the unit supports 2 synchronized axes, a quantity suited to medium-complexity mechanical assemblies. Logic power is delivered through a dedicated 24 VDC control supply, so external sources must guarantee that voltage during all operating states. Command and diagnostic data are transferred over a Multi-Ethernet interface, allowing the controller to appear as an EtherNet/IP, PROFINET, or EtherCAT node without hardware changes. Rotor position is resolved through two independent 2 × EN2 encoder channels; each channel accepts EnDat 2.1, 1 Vpp, or 5 V TTL signals and distributes a regulated 5 V sensor supply. When the unit is first energized, the input stage draws a peak of 6 A; upstream power components must be dimensioned for this inrush to avoid voltage collapse. The design omits integrated safety functions. Expansion slots 3 and 4 are left empty. The controller accepts input pulses with widths up to 60 ms.

Machine-level I/O is served by three signal categories. Discrete commands enter through inputs rated at 24 V / 3 mA, permitting direct connection to PLC transistor outputs. Actuator signals are issued on sourcing outputs capable of 24 V / 0.5 A, enough to drive contactors or indicator lamps. For galvanically isolated switching, the front panel includes a relay that is specified at 24 VDC / 1 A. Service access and legacy device integration are handled by an RS232 serial port situated beside the Ethernet connector. Diagnostic telegrams report encoder supply status and confirm that no safety technology is active, enabling the supervising PLC to adapt operation based on real-time unit status.