Product Description:

The CDB01.1C-ET-ENS-ENS-EN2-EN2-NN-S-NN-FW is a plug-in control section manufactured by Bosch Rexroth Indramat for the CDB Control Units series. Installed on power sections of IndraDrive converters, this board handles motion commands, feedback processing, and network traffic for coordinated axis control in automated machinery. By hosting encoder interfaces and Ethernet channels on a compact card, it links servo drives with higher-level PLCs, enabling position, velocity, and torque loops to be executed close to the motor while minimizing cabinet space.

During startup, the board draws a base power of 9 W, supplied through the external electronics feed of DC 24 V. A capacitive front end causes an inrush current of 6 A that lasts 60 ms, so the upstream supply must tolerate that transient before settling. Communication with the plant network is furnished through Multi-Ethernet hardware, and the physical layer supports 100Base-TX wiring so standard CAT5e cables can be used for data exchange. The module provides two ENS slots and two EN2 slots, and both encoder channels share this bus interface so position feedback is forwarded to the drive and mirrored to controllers through the same Ethernet link without gateways.

Local analog diagnostics are available through a voltage output that spans 5 V at full scale and increments in steps of 19.5 mV/inc, allowing fine-grained observation of internal variables. The EN2 interface powers its incremental encoders with 5 V at up to 350 mA, while the ENS interface delivers 11.6 V with a limit of 500 mA for SinCos or Hiperface feedback. Both encoder groups have two slots each, so four sensors can be wired in parallel. Incoming TTL tracks on the ENS channel are accepted up to 400 kHz, ensuring reliable edge capture at high spindle speeds. This variant does not include safety technology, so any STO or SS1 functions must be implemented externally.