Product Description:

The CDB01.1C-S3-EN2-EN2-NNN-NNN-L2-S-NN-FW is a control section designed by Bosch Rexroth Indramat for the CDB Control Units series. It plugs into an IndraDrive power unit and functions as the motion-logic core that coordinates feedback, safety, and fieldbus traffic for multi-axis automation. By housing the signal processing and communications layer on one card, the product simplifies cabinet layouts and lets machine builders scale axis counts without rewriting higher-level programs.

This card supervises 2 servo axes and draws a standby load of 9 W, keeping the control electronics energized while minimizing panel heat. A startup surge of 6 A is briefly tolerated during bus capacitor charging, and downstream protection must clear that peak. Command traffic is exchanged through the SERCOS III master link and uses an RJ-45, 8-pin connector that supports deterministic Ethernet telegrams. Functional safety is provided by the integrated Safe Torque Off circuit, and wiring for that channel terminates on a D-Sub, 9-pin STO plug. Each EnDat feedback channel is routed to a dedicated D-Sub, 15-pin EN2 socket, and channel one accepts EnDat 2.1, 1 Vpp, or TTL signals so that absolute and incremental encoders can be mixed on the same drive. A watchdog pulse resets the fiber-optic SERCOS ring if telegrams stall.

The assembly stands 322.6 mm tall, spans 49.5 mm in width, and projects 103 mm into the cabinet, allowing dense stacking beside adjacent inverters. Its internal processor issues command pulses at 60 ms intervals, aligning drive updates to controller scan cycles. The second encoder port mirrors the first and is powered by a regulated 5 V rail that can supply 350 mA to differential transducers mounted on the motor. Those supply limits support long cable runs without voltage droop and keep signal edges within the EnDat timing budget.