Product Description:

The CDB01.1C-ET-ENS-EN2-NNN-NNN-NN-S-NN-FW is a control unit manufactured by Bosch Rexroth Indramat and belongs to the CDB Control Units series. It installs in modular drive systems to coordinate two servo axes, manage feedback devices, and relay status data to higher-level PLCs through real-time Ethernet. By combining encoder evaluation, analog signaling, and fieldbus routing in one card, the module simplifies motion-control cabinets used in packaging, material-handling, and general automation.

This controller communicates through a Multi-Ethernet interface and uses the 100Base-TX physical layer for line-rate transfers. Two analog monitor channels provide a 0 to 5 V output at up to 1 mA, allowing drive variables to be tracked by external meters or process controllers. Digital outputs can source 500 mA, so interlocks and relays can be driven directly without booster stages. Encoder socket 1 accepts IndraDyn, Hiperface, or 1 Vpp sine-cosine feedback, while socket 2 supports EnDat 2.1, 1 Vpp, or 5 V TTL signals, giving flexibility when mixing legacy and high-resolution motors. A dedicated ENS supply delivers 11.6 VDC at 500 mA to power the second encoder, and the EN2 port provides 5.0 VDC with 350 mA for low-voltage transducers. Its low heat output allows forced-air cooling inside the cabinet to be sufficient.

The unit supervises exactly 2 drive axes and draws only 9 W from the supply backplane, which helps keep heat buildup low in multi-axis racks. Its change-over relay can switch loads up to 30 VDC / 1 A, creating a hardware-level fault or ready signal for external circuits. An RS-232 service port supports diagnostics at rates to 115 kBaud, which provides a direct access path when the Ethernet network is unavailable. The card can therefore combine axis control, encoder handling, and signal exchange within a single control slot.