Product Description:

The CDB01.1C-SE-EN1-EN1-MEM-MA1-L1-S-NN-FW control unit is produced by Bosch Rexroth Indramat within the CDB Control Units series. This plug-in electronics card functions as the central processor for Rexroth drive converters, coordinating multiple servo channels inside automated cells and issuing real-time position, speed, and torque commands to the associated power sections. By translating fieldbus telegrams into axis-specific control signals, it forms a compact interface between higher-level PLCs and the motor inverters that energize synchronous or induction machines.

Motion coordination is available on 2 axes, each processed in parallel by the unit’s dual DSP cores. Command exchange takes place over SERCOS, and the optical ring built from fiber-optic cables moves telegrams at 16 MBaud to keep every node synchronized. The card’s MEM channel can stream position words toward external counters at 1 MHz, supporting electronic gearing and camming. Two independent encoder sockets permit feedback passthrough, and the quantity matches the axis count so that each drive channel closes its own sensor loop. Control terminals marked L1 accept 24 V at 3 mA, giving deterministic enable and inhibit inputs without loading the logic circuitry.

Feedback versatility is extended through encoder emulation that can output Absolute and Incremental formats, letting controllers adopt the protocol their motion task requires. Physical sensor wiring connects to a hybrid resolver/HSF interface, and the resolver carrier is generated internally at 4 kHz with an amplitude of 18.2 Vpp to maintain clear reference signals on long cable runs. The unit recognizes MKD, MKE, and MHD motor feedback devices, so temperature, speed, and position data are interpreted without external scaling. Position loops close inside the drive, which reduces the PLC’s high-frequency calculation load and helps keep machine cycle times predictable.