Product Description:

The CDB01.1C-S3-ENS-ENS-NNN-MA1-L2-S-NN-FW is a compact control card from Bosch Rexroth Indramat that fits into the CDB Control Units series. It serves as the command layer for drive converters, coordinating up to two servo axes while exchanging deterministic data with higher-level PLCs during synchronized motion tasks. In an automation line, the card processes position loops, acquires encoder feedback, and forwards setpoints to the associated power section so that multi-axis motions stay synchronized.

Main fieldbus traffic is handled through SERCOS III over 100Base-TX, allowing cycle times suitable for tight velocity and torque loops. The encoder interface delivers up to 500 mA at 11.6 V, giving sufficient power for both single-turn and multi-turn transducers. Noise on differential encoder tracks is filtered by an ENS channel whose cutoff is set to 500 kHz, balancing phase accuracy with immunity to high-frequency interference. The onboard MA1 module provides two differential ±10 V analog inputs and two ±10 V outputs. Each input is digitized with 12-bit resolution, so torque limits, speed references, and similar drive parameters can be fed in with quarter-percent granularity, while the matching output pair can retransmit processed signals to external actuators.

Service access is available through an RS-232 port that supports up to 115 kBaud for diagnostics and local parameter access. Two RJ-45, 8-pin connectors provide the network connection, and with shielded twisted-pair cabling the permissible span between nodes is 100 m, which simplifies cabinet layouts on large machines. Safe Torque Off monitoring is integrated: the acknowledgment circuit tolerates 24 V / 1 A while the logic input requires only 24 V / 3 mA, enabling quick removal of energizing power without extra relays.