Product Description:

The CDB01.1C-PB-ENS-EN1-NNN-NNN-NN-S-NN-FW is a modular control unit designed by Bosch Rexroth Indramat for mounting on the power section of a drive stack in the CDB Control Units series. This card handles local I/O processing, encoder evaluation, and fieldbus communication so the connected converter can close its current and velocity loops. By translating motion commands from upper-level controllers into real-time trigger, enable, and diagnostic signals, it forms the supervisory layer that coordinates servo axes in packaging, material-handling, and machining cells.

The board accepts differential command signals within ±10 V, allowing external analog setpoints for speed or torque regulation. It reports internal variables through a buffered output fixed at 5 V. Control electronics draw a standby load of 9 W from the base 24 V rail, and each of the eight transistor outputs can source up to 0.5 A to actuate contactors or lamps. The discrete section must be supplied with DC 19–30 V, and the total I/O draw is 1.1 A under full load. Deterministic data exchange with the master PLC uses the PROFIBUS-DP interface. For position-capture tasks the unit can issue single-shot pulses whose duration can be stretched to 60 ms, providing flexibility when gating slower field devices.

A surge current of 6 A occurs when the module energizes, a factor to consider when sizing cabinet fusing. Once installed, the card occupies a footprint that is 103 mm deep, 49.5 mm wide, and 322.6 mm high. The X4.1 encoder port supports IndraDyn, HIPERFACE, and 1 Vpp sinusoidal feedback and delivers a regulated 12 V supply to the transducer, while the adjacent X4.2 port accommodates HSF or RSF encoders and provides an 8 V line. Together these channels enable mixed-sensor operation without external power modules, consolidating feedback wiring on the drive backplane.