Product Description:

The CDB01.1C-SE-EN2-EN2-EN1-EN1-NN-S-NN-FW control section is produced by Bosch Rexroth Indramat within the CDB Control Units series. Installed inside an IndraDrive regulator, it handles command processing, encoder evaluation, and I/O routing needed for closed-loop position and velocity control. By translating motion commands from higher-level automation controllers into precise drive instructions, the board forms the interface between machine PLC logic and the power electronics that actuate servo axes in industrial assembly, packaging, and machining equipment.

The card supervises two drive channels, so motion can be synchronized across 2 axes without additional hardware. Communication with the master PLC relies on SERCOS II, providing deterministic update cycles. During energization, the module presents a 6 A base inrush current that must be considered when sizing supply fuses. Two analog monitor outputs provide signals up to 5 V at 1 mA for scope tracking of speed, torque, or following error. For discrete status, the digital output stage can source 500 mA, enabling direct actuation of pilot lamps or external interlock relays. A fundamental pulse width of 60 ms governs the watchdog timing for fault detection.

Steady operation draws only 9 W, minimizing panel heat while leaving capacity for additional modules. Each analog channel converts drive variables at a resolution of 19.5 mV/inc, giving adequate granularity for fine-tuning servo loops. The primary feedback port accepts Resolver / HSF transducers, and its excitation is fixed at 4 kHz with a supply of 18.2 Vpp to maintain signal integrity on long motor cables. A secondary encoder port supports EnDat 2.1 / 1 Vpp / 5 V TTL, delivers 5.0 V logic power, and can sink 350 mA to the sensor electronics. Final power interface contacts are rated for 24 V DC at 1 A, making the board capable of switching auxiliary brake relays without external amplifiers.