Product Description:

The VT-UK2-3X/VT13875A/U134 is a universal signal-processing card produced by Bosch Rexroth Indramat within the VT-UK2 Universal Cards series. Supplied as a bare board, this product is intended to be inserted into custom control racks where analog and switching stages are arranged for hydraulic and general automation equipment. By providing configurable amplifier sections and passive components, the card functions as an operational circuit builder that lets users implement basic conditioning, comparison, or timing blocks required to link sensors, valves, and controllers inside an industrial machine.

The board operates from a dual supply of ±15 V, and that voltage is kept within tight limits because the rails are specified as Stabilized, which helps prevent drift in the analog stages. Signal paths are routed on a Printed Circuit Board substrate that supports predictable impedance and repeatable assembly. Six amplifier channels are available, organized as 6 (3 dual), so each dual package can be wired for differential or independent gain stages. Electrical connections rely on Solder Points rather than plug-in jumpers, which makes each connection permanent and vibration-tolerant in machinery cabinets.

Each channel can be configured as an Inverter, Schmitt Trigger, Summator, or Differentiator, allowing rapid adaptation to different sensor signals without replacing the card. Five zero-adjust potentiometers are provided, and the identifier set R3, R4, R7, R8, and R9 allows offset trimming for the selected topology. Because the board’s amplifier count aligns with these potentiometers, unused trimmers remain available for future modifications. When combined with the stabilized supply rails, the adjustable zero points maintain consistent reference levels so downstream hydraulic valves receive repeatable control inputs even as temperature or component aging influences the surrounding electronics.