Product Description:

The CDB01.1C-SE-ENS-ENS-ENS-ENS-NN-S-NN-FW belongs to the CDB Control Units series manufactured by Bosch Rexroth Indramat. This plug-in control section is installed on IndraDrive power units to coordinate two servo axes, exchange diagnostic data, and interface with higher-level automation networks. Within a drive stack, it handles motion sequencing, digital I/O processing, and encoder evaluation so the drive can close velocity and position loops without an external PLC.

Power for the logic electronics is limited to 9 W, keeping internal dissipation low and reducing cabinet cooling load. Each digital output can source up to 500 mA, while the collective limit for a group of outputs is 1000 mA; these ratings limit how many valves or relays the board can drive directly. During power-up, the control section draws an inrush of 6 A, so upstream supplies must tolerate that brief surge. A maximum pulse width of 60 ms is allowed on fast inputs, permitting capture of short sensor edges without loss. The SERCOS III bus can be updated every 1000 µs to synchronize axis commands, and the integrated SE option card adds 2 W of additional load for safety functions. For service access, the RS-232 port transmits parameter data at up to 115 kBaud.

The ENS interface processes encoder sinusoidal signals with a 12-bit resolution after internal interpolation and maintains frequency response up to 500 kHz, supporting high-speed motors. Its input network presents 120 Ω termination and consumes 6 W, while a separate supply delivers 11.6 V at 500 mA to the sensor head. Group relay contacts on the baseboard are rated at DC 24 V / 1 A, enabling direct switching of brake coils or status lamps. The separate sensor supply and relay outputs support direct connection of feedback devices and external status circuits.