Product Description:

The VT-UK2-3X/VT11378A/U305 is a signal-conditioning board produced by Bosch Rexroth Indramat within the VT-UK2 Universal Cards series. As a universal card, it mounts in modular drive or control racks and provides standardized analog interface points between hydraulic servo-valves and higher-level controllers. In automation cabinets, the board translates sensor feedback and command voltages so that proportional valve stages receive precise setpoints, improving closed-loop accuracy on presses, test rigs, or material-handling axes.

The board follows the Eurocard outline, giving it a predefined 3U footprint inside 19-inch subracks. Its vertical dimension is 100 mm, while the depth reaches 160 mm, so it lines up with adjacent control electronics without additional spacers. Conformance with DIN 41 494 ensures that fixing holes, guide rails, and ejector positions match common rack hardware, and the edge connector follows the DIN 41 612 pattern for direct insertion into compatible backplanes. These dimensions support tight rack-level packing density and help keep the card properly aligned during insertion.

Once seated in the rack, the card operates from an excitation of 10 V, which also serves as the internal reference for its analog processing chain. The card includes 5 null-point potentiometers, allowing independent zero adjustment of multiple valve outputs to counter sensor drift. A total of 6 precision operational amplifiers provide gain and summing functions for closed-loop control. The conditioned command leaves the card as a stabilized analog output that can source up to 5 mA, which is sufficient for direct drive of proportional valve interfaces or local indicator modules. Because the output stage is current-limited, downstream faults are less likely to damage sensitive feedback components.