Product Description:

Bosch Rexroth Indramat’s CDB01.1C-PB-ENS-ENS-EN2-EN2-S2-S-NN-FW belongs to the CDB Control Units series and serves as a compact drive controller for multi-axis automation. The board hosts onboard signal conditioning and fieldbus connectivity so that two servo axes can be coordinated directly from the cabinet. Within motion systems, it executes position, velocity, and diagnostic tasks, freeing the higher-level PLC from axis-level processing.

The module supervises 2 independent drive channels and delivers analog feedback with a conversion time of 10 µs. Each channel provides a full-scale output of 5 V across a load as low as 5 kOhm, and resolution steps of 19.5 mV/Inc permit fine torque or speed trim during closed-loop control. Digital outputs are rated at 500 mA per point, so relays or optical sensors can be driven directly without external amplifiers. A 12-bit ENS converter processes incremental encoder signals, while the ENS supply rail supports 500 mA to power feedback devices. Serial diagnostics are possible over a 15 m cable at up to 115 kBaud, allowing parameter access from a laptop or handheld terminal without disturbing fieldbus traffic.

Networked operation is handled through the PROFIBUS-DP port, giving deterministic communication among drives, I/O, and supervisory controllers. The secondary EN2 interface accepts differential signals into a load of 35 Ohm and sources 350 mA at 5.0 V to incremental encoders that include sense lines for voltage drop compensation. For applications needing absolute feedback, the ENS channel offers a nominal supply of 11.6 V and accepts TTL streams up to 400 kHz without pulse loss. These interface characteristics support stable control-loop response during acceleration, deceleration, and standstill holding torque under varying mechanical loads.