Product Description:

The CDB01.1C-SE-EN1-NNN-MA1-S1-S-NN-FW is a control unit produced by Bosch Rexroth Indramat within the CDB Control Units series. It functions as the command layer inside IndraDrive systems, coordinating drive tasks for multi-axis machinery through integrated motion, feedback, and safety resources. By hosting regulation loops and field interfaces, the module links servo inverters to higher-level PLCs and enables deterministic drive coordination in industrial automation.

This model supervises 2 axes and draws only 9 W of base power, so cabinet dissipation stays low while dual-channel processing is maintained. Command traffic is carried on the fiber-optic ring using SERCOS II, giving electromagnetic immunity and time-synchronized telegrams. Two differential analog input channels accept ±10 V signals with 1000 kΩ input resistance, and two analog outputs provide reference voltages to external devices. The ±10 V inputs are sampled across a 1 kHz bandwidth, making them suitable for fast torque or position loops, while each analog output is quantized at 5 mV/inc to reduce command granularity. This arrangement allows the unit to combine networked motion commands with direct analog interfacing when a machine uses external setpoint or monitoring signals. A single-line control panel supplies local parameter access, and the 8 V encoder supply powers resolvers or high-speed feedback transducers connected at the drive end.

Auxiliary communication is available through an RS-232 port that reaches 115 kBaud for service diagnostics without disturbing real-time traffic. Encoder channels process position data from Resolver/HSF sensors, forwarding absolute and incremental values to the control loop. Integrated safety is handled by a relay rated at 24 V DC / 1 A and by the S1 Safety I/O architecture, allowing safe torque off and external emergency-stop wiring without extra modules. The safety circuit can be tied into machine stop chains, while the serial interface provides a separate path for status access and parameter handling. This layout allows the control unit to manage feedback, safety signaling, and auxiliary communication in the same assembly.