Product Description:

The CDB01.1C-SE-EN2-EN2-NNN-MA1-S1-S-NN-FW control section is produced by Bosch Rexroth Indramat as part of the CDB Control Units series. Installed on an IndraDrive power module, it acts as the local intelligence that converts network commands, encoder signals, and analog references into pulse-width-modulated drive currents. This board allows multi-axis machines, conveyors, and handling systems to synchronize motion and torque with the cycle requirements of industrial automation processes.

The board offers two differential analog inputs and two outputs, and each converter digitizes or synthesizes signals with a resolution of 12-bit. Incoming process voltages encounter an input resistance of 1000 kΩ, which minimizes the load on upstream sensors. Increment steps of 5 mV per count apply to both input and output converters, supporting fine scaling of setpoints and feedback. The analog outputs can drive actuators or external controllers with an accuracy of 0.2% of FMR, so deviation from the commanded level remains low across the full measurement range. Output stages are intended for loads down to 1 kΩ, which helps keep current demand within the module’s thermal limits while still allowing direct connection to typical control hardware.

Real-time command exchange is handled through SERCOS II, and the interface is isolated on a fiber-optic medium to reduce ground loops and electromagnetic interference. Two independent encoder channels accept EnDat 2.1, 1 Vpp, or 5 V TTL formats, and each EN2 port supplies up to 350 mA at 5.0 V DC for sensor power. The relay output is rated at 24 V DC / 1 A and can be mapped to ready, fault, or enable functions. Safety signaling arrives through a D-Sub 9 female connector, with inputs operating at 24 V / 3 mA and solid-state outputs delivering 24 V / 0.5 A to downstream contactors or brakes.