Product Description:

The CDB01.1C-ET-EN2-EN2-NNN-MEM-L2-S-NN-FW control section is produced by Bosch Rexroth Indramat within the CDB Control Units series. It slots into modular IndraDrive power stages to coordinate servo axes in automated machinery. As a dedicated control core, it handles real-time motion tasks, I/O processing, and network exchange, providing the logical layer that lets the drive close loops and respond to commands from higher-level PLCs.

It supervises 2 independent drive axes, and each axis supports EnDat 2.1, 1 Vpp, or 5 V TTL feedback so resolverless motors can be positioned with digital or analog encoders. Control data reaches the board through the Multi-Ethernet interface, and the internal logic uses 100Base-TX signaling for deterministic exchanges. At idle, the unit draws only 9 W, which helps limit cabinet heat before the power stage energizes. Digital inputs recognize a logic high at 15 V, while the transistorized outputs can source up to 500 mA for contactors or indicator lamps. A startup surge of 6 A charges the DC link, after which nominal consumption resumes. The optional encoder emulation port can reproduce incremental or absolute tracks, and the MEM diagnostic channel can transmit up to 1 MHz across 40 m of ribbon cable.

A standard front control panel provides parameter access without external tools. For axis-side sensing, the EN2 differential cable may be routed up to 75 m without degrading signal integrity, while the Ethernet port supports trunk lengths of 100 m, enabling remote mounting inside distributed cells. The initial energy surge is short, and an inrush window of 60 ms helps protect upstream circuit breakers. When functional safety is required, the integrated Safe Torque Off channel disables motor torque under fault or emergency conditions without using external contactors, which helps simplify wiring.