Product Description:

The CDB01.1C-ET-EN1-EN1-NNN-NNN-L2-S-NN-FW is a dual-axis control unit produced by Bosch Rexroth Indramat within the CDB Control Units series. It is mounted inside IndraDrive power sections. There it coordinates servo loops for precision positioning in modular automation cells, packaging machines, and material-handling systems. Its format lets one control unit manage paired axes within the same drive platform, keeping control functions close to the power stage.

This model governs two motion channels through its MultiEthernet interface, allowing deterministic data exchange with EtherNet/IP, PROFINET, and EtherCAT controllers. The current loop closes every 125 µs, the position loop every 500 µs, and the velocity loop every 250 µs; these cycle times determine how quickly the drive corrects torque, position, and speed errors. Power for the logic circuits is supplied at DC 24 V. Two HSF/RSF encoder inputs provide high-resolution feedback, and a standard front panel offers parameter access without extra accessories. Because no auxiliary option cards are installed, both internal slots remain open. Fast loop timing supports responsive control during interpolation, speed regulation, and changing loads.

The unit withstands an inrush of 6 A when the 24 V line is energized, while its switching components pulse up to 8 kHz to generate gate commands for the connected power stage. Motion can be disabled by the certified Safe Torque Off (SIL3 / Cat. 3 PLe) channel, and a single normally open relay contact passes status signals to the higher-level control. Two dedicated safety-technology slots are available, and two auxiliary slots are open. Command sequencing that needs extended dwell times can use a maximum pulse width of 60 ms. Diagnostic laptops connect through the RS232 port for trace capture without disturbing real-time Ethernet traffic. Separating that diagnostic link from the real-time network helps keep fieldbus communication available during data capture.