Product Description:

The CDB01.1C-ET-EN1-EN2-NNN-NNN-S1-S-NN-FW is a control unit produced by Bosch Rexroth Indramat within the CDB Control Units series. The module forms the command layer inside drive systems, handling feedback processing, network connection, and safety signaling required for coordinated axis movement in industrial automation lines. By combining encoder evaluation, fieldbus exchange, and integrated safety in a single housing, it reduces panel space and simplifies wiring when multiple servo or induction drives must be supervised by a centralized controller.

Its primary communication path is the Multi-Ethernet interface, which uses the 100Base-TX standard and is presented on an unshielded RJ-45 8-pin socket, enabling direct linkage to PLCs or supervisory networks. For legacy diagnostics, the board exposes a serial RS-232 line through a Mini-DIN 8-pin jack, and the channel can reach 115 kBaud for parameter access and service tasks. Encoder channel EN1 supplies hall sensor power at DC 8 V and can deliver up to 250 mA, supporting low-impedance transducers without external regulators. The same channel conditions incremental feedback, while EN2 accepts EnDat 2.1, 1 Vpp, or 5 V TTL signals so that absolute or analog encoders can be attached without additional interface cards.

EN1 can excite a resolver with an AC 18.2 Vpp carrier, while EN2 supports the selectable EnDat 2.1 protocol when digital position data is required. Safe Torque Off circuits are wired on a D-Sub 9-pin header; the logic inputs are rated at 24 V / 3 mA, and the relay contacts can interrupt motion with a capacity of DC 24 V / 1 A. An additional 24 V output path at 0.5 A is available for external status lamps. Separate encoder, network, serial, and safety sections let the controller manage axis feedback, exchange data, and execute shutdown functions without auxiliary relays or separate interface supplies.