Product Description:

The CDB01.1C-S3-ENS-ENS-EN1-EN1-L2-S-NN-FW is a modular control unit produced by Bosch Rexroth Indramat for the CDB Control Units series. Installed on an IndraDrive power section, it coordinates two servo axes, exchanges process data with higher-level PLCs, and supervises drive safety through the integrated Safe Torque Off channel. In multi-axis automation cells, the device acts as the local control platform that converts motion commands into precisely timed current and position instructions for connected motors.

This model links to the motion network through SERCOS III, providing deterministic cyclic data for velocity, torque, and diagnostic words. Analog feedback enters through an input channel with a resistance of 160 kOhm, so sensor circuits are not heavily loaded. An analog output can source 5 V at 1 mA for tachometer or reference generation. For discrete control, eight inputs accept a nominal 24 V, 3 mA, while four high-side drivers deliver up to 24 V, 0.5 A to actuate lamps or external relays. These channels share optically isolated grounds to minimize noise propagation between drive electronics and field wiring.

The unit manages 2 axes and draws a maximum I/O backplane current of 1.1 A. A form-C relay provides a field interface rated at 24 V DC, 1 A for ready or fault signaling. Two front-panel slots handle feedback: slots 1 and 2 evaluate incremental and absolute encoders under the ENS profile, while slots 3 and 4 process resolver and HSF signals under the EN1 option. An RJ-45, 8-pin engineering port supports parameter setup without disrupting fieldbus traffic. A computer can also connect through the RS232 serial interface, which reaches 115 kBaud for low-level trace functions. Safe Torque Off disables gate-drive power internally so that motors cannot generate torque when the safety chain is opened.