Product Description:

The CDB02.1B-ET-EC-EC-PB-L3-L3-EC-NN-FW is a dual-axis control unit manufactured by Bosch Rexroth Indramat within the CDB Control Units series. It is paired with modular power sections to form a complete drive controller that handles real-time motion commands, feedback processing, and integrated safety for industrial automation cells. By coordinating encoder signals, digital I/O, and fieldbus traffic, the device supervises torque, speed, and position loops for two servo axes in packaging, material-handling, and assembly machinery. This arrangement places axis control and communication handling in one module, which helps keep the drive layout compact in coordinated motion systems.

The control electronics are supplied from a dedicated bus at 24 V DC, and the internal circuitry dissipates only 23 W, so cabinet heat rise remains limited during normal operation. It is designed to mount beside the HMD01 power section, which is the minimum compatible inverter platform for this hardware combination. Host communication is established through a Multi-Ethernet port that supports several industrial Ethernet protocols, while legacy installations can rely on the separate PROFIBUS interface. Two encoder ports per axis use a multi-encoder arrangement that accepts EnDat, SSI, and incremental feedback without additional option cards. Separate analog stages provide two ±10 V inputs and two ±10 V outputs for setpoint exchange or sensor routing.

The front panel provides 14 general-purpose digital inputs plus 8 configurable digital I/O points that can be assigned as outputs for drive-ready or fault indication. High-speed position capture is handled by 4 probe inputs tied directly to the encoder logic for synchronized triggering during motion events. Both motion channels include an integrated safety function, and the hardware drives the power stage into STO (Safe Torque Off) when an emergency-stop chain is opened, removing motor torque without cycle delays. This arrangement supports applications that need local machine signals, encoder-based capture, and safe shutdown within the same two-axis control platform.