Product Description:

Bosch Rexroth Indramat developed the CDB01.1C-SE-EN2-EN2-EN2-NNN-S1-S-NN-FW as a plug-in control section for the CDB Control Units series. The module installs on IndraDrive power sections to manage motion commands, fieldbus communication, and local safety inputs in industrial automation cells. By combining fast logic processing with integrated encoder evaluation, it streamlines axis control while minimizing external wiring throughout the machine cabinet and simplifying connections between the drive and feedback devices.

The analog channel produces step changes of 19.5 mV/inc, allowing fine-grained reference values when the drive follows velocity or torque setpoints. At a full-scale analog amplitude of 5 V, the converter matches standard servo interface levels without additional scaling hardware. Internal electronics draw only 9 W of base power, so cabinet thermal loading remains low even when multiple units share a bus rail. Each digital input recognizes a high state once the signal reaches 15 V, preventing false triggering from low-level noise on long cable runs. Individual digital outputs can source up to 500 mA, sufficient for driving contactor coils or status lamps directly, while an energy clamp absorbs 400 mJ from inductive loads to protect the driver transistors.

During power-up, the control board withstands an inrush of 6 A for a maximum pulse width of 60 ms, letting it charge onboard capacitors quickly without tripping upstream circuit breakers. Real-time command exchange with the drive occurs over the deterministic SERCOS II fiber-optic loop, so position data and diagnostics reach the CNC or PLC within microseconds. The safety relay output is rated at 24 V / 0.5 A, providing a hardware channel to disable external actuators whenever the integrated STO function is asserted. Three EN2 encoder ports supply 5.0 V at 350 mA per channel and operate with a 35 Ω load, giving the axis card direct feedback from high-resolution SinCos or TTL encoders while the 1 A group limit prevents bus overcurrent when all ports are active.