Product Description:

The CDB01.1C-ET-ENS-EN2-NNN-NNN-S2-S-NN-FW is a modular control section produced by Bosch Rexroth Indramat for the CDB Control Units series. It snaps onto an IndraDrive power module and acts as the processing core that links motion axes with field devices through integrated Ethernet and serial channels. Within an automation cell, it conditions analog feedback, supervises digital I/O, and distributes synchronized commands for coordinated drive operation. This arrangement allows the control section to handle motion control tasks and machine-level signal exchange from the same drive assembly.

Two differential analog inputs are presented with an input resistance of 180 kΩ, permitting high-impedance sensors to be connected without loading their signals. That helps preserve measurement accuracy when a reference device has limited output capability. Command voltages leave the module through 12-bit converters that step in increments of 19.5 mV/inc, giving fine output resolution for closed-loop control. Each digital output can source up to 500 mA, while the grouped header is limited to 1000 mA, so connected loads must be distributed across the available channels. The encoder socket feeds external measuring systems with a regulated 5 V supply and accepts returning differential signals for position feedback. Under worst-case loading, the I/O domain can draw up to 1.1 A from the external supply.

Network and safety resources are tuned for medium-speed machinery. The asynchronous diagnostics port supports cable runs to 15 m and transmits at 115 kBaud for local diagnostics, while real-time controller communication follows the 100Base-TX standard over CAT5e ITP cabling. Stable operation is supported on network links up to 100 m, which suits typical cabinet-to-machine routing distances. Control electronics are referenced to an I/O supply of 24 V DC, and the safe motion circuitry drives redundant relays that can interrupt power at DC 24 V / 1 A. Trigger inputs can detect a probe pulse as short as 4 µs, and the dedicated safety channels use low input and output current levels to reduce stress on connected enabling devices.