Product Description:

The CDB01.1C-PB-EN1-EN1-NNN-NNN-NN-S-NN-FW is a double-axis control section produced by Bosch Rexroth Indramat for the CDB Control Units series. Mounted on a compatible power module, it forms the control layer of a drive stack and supervises motion sequences for machining centers, handling devices, and assembly stations. The board processes setpoint calculations, gathers feedback from attached encoders, and forwards precise command values to the connected servo inverters. Its architecture also links the drive system to higher-level controllers so coordinated movements are executed with deterministic timing and minimal cycle delay.

This unit governs 2 controlled axes, and each channel delivers analog reference values with a granularity of 19.5 mV/inc so fine speed or torque corrections can be generated without noticeable quantization steps. Seven onboard inputs provide 7 digital inputs for real-time interlocking, while four shared terminals accept configurable I/O for auxiliary functions. Field communication relies on the PROFIBUS-DP interface, and telegrams arrive through a 9-pin D-Sub connector before being forwarded to the internal processor at deterministic bus rates. When power is applied, the electronics draw a startup surge of 6 A, and the upstream protection must accommodate the 60 ms inrush window.

A continuous load of 9 W keeps the core processor, memory, and watchdog circuitry active, and each EN1 option card adds a further 6 W/module for extended encoder evaluation. The plug-in PROFIBUS node contributes only 2 W, limiting panel heat rise when multiple axes share the same enclosure. An isolated relay channel is available for holding brakes or contactor coils and is rated at DC 24 V, 1 A. Additional service connectivity is provided through an RJ-45 100Base-TX port and an 8-pin MiniDin RS-232 serial socket for local diagnostics without disturbing fieldbus traffic.