Product Description:

Bosch Rexroth Indramat built the CDB01.1C-PB-EN2-EN2-NNN-NNN-L1-S-NN-FW control unit as a member of the CDB Control Units series. This device operates as the central axis and I/O processor inside drive packages, where it supervises motion commands, feedback signals, and fieldbus traffic for connected motor axes. In automated machinery, it distributes setpoints to the power section, acquires sensor data, and links the drive to higher-level PLCs. It is intended for synchronized positioning and speed regulation in automated equipment.

Two differential analog inputs are provided, and each input presents an impedance of 160 kΩ, which minimizes loading on process transducers. Each input sample is digitized to 14 bit depth for fine resolution of reference voltages. On the output side, the unit offers two voltage channels with 8 bit resolution to transmit speed or torque commands. The module handles two axes and supports four combined I/O points alongside 7 dedicated digital inputs that accept 24 V signals. Discrete outputs are rated at 24 V, 0.5 A, allowing direct actuation of contactors or status lamps. Communication with the cell controller is realized by PROFIBUS-DP, and operator adjustments are made through its standard single-line control panel.

Feedback from the drives is processed through 2 × EnDat 2.1 / 1 Vpp / 5 V TTL encoder ports, enabling mixed use of absolute sinusoidal or incremental sensors. This gives the controller flexibility when it is paired with motors that use different feedback formats. Internal consumption remains limited to 25 W, so the control card adds little heat to enclosed cabinets. Expansion is possible through 4 option slots that accept safety or additional bus modules, while a relay contact rated for 24 VDC at 1 A permits electrically isolated diagnostics. The safety circuit includes a starting lockout that inhibits unintended motion, and an RS-232 link running at 115 kBaud is available for serial communication and parameter transfer.