Product Description:

The CDB01.1C-PB-ENS-ENS-NNN-NNN-S2-S-NN-FW is a control unit from the CDB Control Units series produced by Bosch Rexroth Indramat. It is intended to coordinate two drive axes inside an automation cabinet and relay status, setpoints, and diagnostic data to a higher-level controller. The device simplifies multi-axis motion tasks by combining fieldbus communication, encoder processing, and safety functions in one compact module. This arrangement lets the module centralize motion control functions that would otherwise require separate interface boards.

This control unit manages 2 axes and exchanges cyclic data over the PROFIBUS interface, allowing deterministic command and feedback traffic with PLCs. For local reference signals, the board provides an analog output channel that can source up to 5 V at 1 mA. Discrete status lines are handled by digital outputs rated for 500 mA, which can drive opto-isolated relays or signal lamps directly. A TTL input path accepts edge-triggered events up to 400 kHz so pulse trains from high-resolution sensors can be captured without missing counts. The standard operator panel plugs into the front edge and offers function keys plus a segmented display for parameter entry, while the RS232 port supports setup and diagnostic commands. That combination allows the unit to handle network communication and local machine I/O from the same control platform.

Feedback handling is performed through 2 x ENS evaluation slots that accept EnDat 2.1 and similar encoders. Each encoder socket delivers power at 11.6 V and uses a 120 ohm termination on the signal lines to suppress reflections on long cables. Probe inputs support 3 mA current with a 1 µs minimum pulse width, making them suitable for edge-aligned position latching. The integrated relay output is rated at DC 24 V and 1 A for energizing brakes or contactors. Encoder evaluation is processed directly by the control unit, so position data and safety-related responses remain available without separate external interface modules. The unit uses Safe Motion technology so certified STO and SS1 functions can be activated through dedicated terminals without extra hardware.