Product Description:

The CDB01.1C-SE-EN1-EN1-ENS-ENS-S1-S-NN-FW is a drive control unit in the CDB Control Units series manufactured by Bosch Rexroth Indramat. Installed on an IndraDrive power section, it coordinates motion axes by processing feedback, generating set values, and handling safety inputs. Within industrial automation systems such as packaging, printing, or assembly lines, the card provides the real-time interface between higher-level PLC commands and the power electronics that energize the servo motors.

Two differential analog outputs can drive loads down to 5 kΩ, and each output has a resolution of 19.5 mV/inc for fine speed or torque trimming. Field communication occurs via SERCOS II, so update cycles stay synchronized with other drive modules. Internal logic runs from a 24 VDC machine supply, while the first HSF encoder channel is held at 8 VDC to protect sensors. The same terminal also provides 70 mA for resolver pick-offs. Encoder slots three and four provide two standard encoder evaluation channels, and ENS wiring leaves the board through a D-Sub 15 female connector. A relay contact rated for 24 VDC at 1 A can signal drive status, and a watchdog can hold that line for up to 60 ms. Safety Technology I/O channels accept emergency stop and enabling signals.

The board’s idle draw is only 9 W, which helps reduce cabinet heat during standby operation. During operation, the HSF interface can source up to 250 mA for transducers. Primary feedback on axis one is routed through 2 × Resolver / HSF slots, allowing either resolver or Hiperface feedback. At energization, the controller demands a peak of 6 A, so the supply must tolerate this inrush to keep encoder power, safety inputs, and relay logic stable. Deterministic timing coordinates analog outputs, standard encoder channels, and internal safety circuits for the connected servo drives.