Product Description:

The CDB01.1C-SE-EN1-EN1-NNN-MEM-S2-S-NN-FW is a plug-in control section produced by Bosch Rexroth Indramat for the CDB Control Units series. Installed in an IndraDrive power module, it generates setpoints, processes encoder data, and supervises functional safety for two servo axes used in industrial automation lines. The board serves as the logical core of the drive, translating fieldbus commands into phase-synchronized motor currents so machine tools, packaging equipment, or handling systems can achieve repeatable, closed-loop motion.

This control section handles 2 axes through individual control loops while drawing only 9 W of base power from the host supply, which reduces cabinet heat dissipation. Command data are exchanged on the real-time fieldbus SERCOS II, allowing deterministic cycle times between the PLC and the drive. For internal logic, the En1 electronics are stabilized by a dedicated 8 V rail. At startup, the card can draw a typical inrush current of 6 A, so the upstream supply must be sized accordingly. A single-line display on the optional control panel shows status words and diagnostics, while encoder emulation in SSI format allows downstream devices to receive position feedback. Separate sockets accept incremental feedback from MHD or MKD motor encoders on two channels.

The integrated Safe Motion circuitry is wired through a D-Sub 9-pin female connector whose inputs accept command signals at a maximum of 24 V / 3 mA, and output contacts can source 24 V at 0.5 A for feedback to external relays. The dedicated relay on the board is rated for DC 24 V / 1 A and is intended for drive-ready signaling. Safety pulses arriving at the inputs can be stretched up to 60 ms, permitting connection to light curtains or emergency-stop chains with slow contact dynamics. For service access, the board offers a service port that uses the RS232 serial interface.