Product Description:

The CDB01.1C-SE-ENS-ENS-EN2-NNN-NN-S-NN-FW is a control section produced by Bosch Rexroth Indramat for the CDB Control Units series. Installed inside IndraDrive drive controllers, it governs up to two servo axes and exchanges real-time data with higher-level motion controllers. In industrial automation, the board converts fieldbus commands into precise current and position references for the connected power stages and motors. It also coordinates feedback handling between the control electronics and the driven axes so the drive can respond quickly to motion commands.

The unit provides two programmable analog outputs that each deliver a reference level of 5 V for external monitoring devices. Its base electronics draw only 9 W, so thermal loading inside the cabinet is minimal. Closed-loop torque and flux are refreshed every 125 µs, and this fast current control cycle allows tight regulation during rapid load changes on both motion channels. Communication to the drive system is handled through SERCOS II, while a maintenance port using RS232 supports service access. The ENS encoder interface can supply up to 500 mA at 11.6 V, and the assembly tolerates an inrush of 6 A during startup without additional soft-start circuitry.

Cycle synchronization on the SERCOS ring can be trimmed to a minimum telegram time of 1000 µs, which aligns with the board's control timing structure. For applications that rely on dual-channel encoders, the En2 port offers a dedicated 5.0 V rail and can deliver up to 350 mA, keeping low-power sensors energized during brief brownouts. When pulse-train operation is selected, command widths as long as 60 ms are accepted, giving the controller flexibility during coarse positioning or homing routines. The standard front panel hosts diagnostic LEDs and a service key for local status indication and basic interaction at the drive.