Product Description:

The CDB01.1C-SE-EN1-EN1-NNN-NNN-S1-NN-FW is a plug-in control section manufactured by Bosch Rexroth Indramat within the CDB Control Units series. Designed for use in IndraDrive power sections, it serves as the central processing layer that supervises drive current, velocity, and position in multi-axis machines. By coordinating feedback data with network commands, the card enables accurate closed-loop motion for packaging lines, printing presses, and other industrial automation cells. This arrangement lets the drive respond quickly to command changes and encoder updates during continuous machine operation.

The board exchanges process data over the SERCOS (SE) fiber ring, and its digital regulation loops are timed tightly to servo dynamics. Current is updated every 125 µs, permitting fine torque modulation, while position corrections run every 500 µs to keep commanded trajectories on track. A dedicated velocity loop at 250 µs smooths speed transitions between setpoints. Power device switching can be commanded up to 8 kHz, so motor phase currents follow the reference without excessive ripple. These internal periods stay coordinated so bus telegrams, encoder feedback, and PWM events remain phase-aligned under dynamic load changes. Tight timing in each loop helps the control section maintain stable motion behavior during acceleration, deceleration, and rapid direction changes.

Complementary hardware supports secondary functions without disturbing the timing chain. Two differential analog channels provide two programmable outputs for setpoint forwarding or diagnostics, and dual incremental ports accept feedback from 2 × EN1 encoders for axis-pair control. When the network operates at its minimum cycle of 1000 µs, probe inputs can time-stamp edge events, and the single relay contact is rated at 30 VDC and 1 A for drive-ready signaling. Additional safety signals pass through a D-Sub connector with 0.5 A sourcing capability, allowing the unit to integrate with category-compliant emergency circuits. These added interfaces support monitoring and signaling tasks without interrupting the fast deterministic control loops.