Product Description:

The VT-UK2-3X/VT13686A/U169 is a universal control card produced by Bosch Rexroth Indramat and supplied within the VT-UK2 Universal Cards series. Intended for industrial automation racks, the board serves as an analog interface platform that hosts operational amplifiers and trimmer potentiometers used for signal conditioning, offset adjustment, and feedback scaling inside hydraulic or servo drive cabinets. By matching the physical and electrical standards used in modular backplane systems, the card allows custom conditioning circuits to be integrated without changing enclosure hardware.

The board uses the Eurocard outline, so it slides directly into standardized 19-inch sub-racks. Its edge length of 160 mm provides the depth needed to carry multiple signal paths, while the 100 mm height aligns with common guide rails for secure lateral support. Connection to the rack backplane is handled by a DIN 41 612 compliant interface; this interface uses standard pin spacing and keying, helping prevent mis-insertion. Signal pins are arranged as a Blade Connector, a form that tolerates repeated mating cycles and maintains low contact resistance under vibration. The card fits standardized automation frames used with mixed-function racks.

Mechanical retention relies on the DIN 41 494 mounting pattern, allowing the front panel screws and rear guides to align with standard card cages. Internal wiring is completed through Soldered Junctions, eliminating removable jumpers and maintaining stable impedance across temperature changes. For offset tuning, the design includes 5 null-point potentiometers, each routed to a separate summing node so analog zero can be trimmed per channel. Signal processing is handled by 6 operational amplifiers grouped into three dual packages, and this double-amplifier arrangement supports differential inputs, active filtering, and gain stages without overloading a single integrated circuit.