Product Description:

The CDB02.1B-ET-EC-EC-EC-SB-SB-EM-NN-FW control unit is produced by Bosch Rexroth Indramat and belongs to the CDB Control Units series. As a modular drive controller component, it coordinates motion commands, feedback, and safety signals for servomotor axes in industrial automation cells, packaging machines, and material-handling stations. By combining axis management, field networking, and safety supervision in one electronics module, the device reduces cabinet wiring and provides a standardized interface between higher-level PLCs and decentralized servo power sections. This layout allows the control section and the power section to be organized separately while still exchanging the command and status data needed for closed-loop motion.

The controller draws a base power of 23 W from a regulated DC 24 V supply, allowing logic to remain active when the main bus is off. Two analog inputs accept signals in the range of ±10 V and are digitized with 14-bit resolution for speed or torque references, which makes the unit suitable for external command sources that still use analog setpoint signaling. Matching analog outputs reproduce setpoints over the same span with a granularity of 24 mV per increment, and fourteen digital inputs capture edge events for homing, limit, or emergency functions. Multi-protocol Ethernet I/O is handled by an interface that conforms to the 100Base-TX standard, while absolute position data is forwarded on an SSI channel for feedback devices that use serial position transmission.

The hardware supervises motion on two coordinated axes and monitors each with dual motor encoder sockets that accept 2 × Multi-Encoder plugs, along with an additional Multi-Encoder feedback port for gantry applications. Real-time telegrams are distributed across the Multi-Ethernet backbone, while functional safety is implemented by the integrated 2 × Safe Motion Bus circuitry that evaluates STO and SS1 states without external relays. Actuator solenoids or indicator lamps can be driven directly thanks to a channel current capacity of 500 mA, which supports simple field devices without separate interface hardware. Physical network attachment uses a shielded RJ-45, 8-pin connector that matches standard CAT-5e cabling practices and supports straightforward Ethernet integration inside the control cabinet.