Product Description:

The CDB01.1C-S3-ENS-ENS-NNN-MEM-NN-S-NN-FW is a modular control section produced by Bosch Rexroth Indramat for the CDB Control Units series. Installed on an IndraDrive power module, it acts as the central processor that links motion commands from higher-level controllers to the drive electronics. In automated assembly lines, packaging cells, and material-handling systems, the unit converts setpoints, evaluates encoder data, and synchronizes twin servo axes so that position, velocity, and torque remain within the limits required by the machine program.

Each analog command channel is protected by an input resistance of 160 kΩ, which minimizes loading on PLC voltage sources. When the control section generates reference voltages, the output stage resolves changes down to 19.5 mV/inc, allowing fine speed trimming under closed-loop control. Motion capacity reaches 2 axes that share a processing core, and four configurable I/O terminals support fast edge capture or status signaling. The board draws only 9 W of base power from the attached supply, helping keep cabinet thermal budgets low. For actuator control, two high-side digital outputs are rated at 24 V / 0.5 A, which is sufficient for small contactors or brake relays. Both encoder connectors operate with standard incremental or absolute transducers, while two dedicated probe inputs permit latch functions during registration moves.

During power-up, the drive electronics confront an inrush demand of 6 A that persists for up to 60 ms, so upstream protection must tolerate that brief surge. Real-time communication to the master controller is handled via the SERCOS III interface on the front panel, while legacy diagnostics can be accessed through a MiniDIN RS232 port. Option slot 4 is populated with encoder emulation so position data can be forwarded to downstream devices without an external splitter. For hardwired interlocks, an onboard relay closes circuits rated at DC 24 V / 1 A. The unit has no integrated safety technology, so emergency stop logic must be provided by external hardware.