Product Description:

The VT-UK2-3X/VT17115A/U169 is a plug-in universal card in the VT-UK2 Universal Cards series from Bosch Rexroth Indramat. Installed in a standardized rack, the board provides conditioning, summing, and relay functions for hydraulic or motion control loops. This allows the parent controller to process analog reference signals without discrete wiring changes. Because it is a plug-in module rather than a fixed terminal assembly, it can serve control circuits that need signal adaptation inside modular cabinet systems. Typical uses include interface tasks between command electronics, proportional valves, and monitoring circuits that share a common rack.

The board follows the Eurocard outline with mechanical limits of 100 × 160 mm, so it occupies a single 3U slot in a DIN rail frame. All field and backplane conductors enter through a 32/64-pin DIN 41612 Form C/D connector, which provides keyed engagement and clear pin allocation for power, signals, and relay coils. This arrangement keeps wiring concentrated at the card edge and leaves the active circuitry accessible on the board itself. Internally, the analog stage is powered from a regulated 10 V rail, and 6 precision operational amplifiers shape, invert, or sum the incoming signals. Processed analog values leave the card as a buffered 10 V; 5 mA output, supplying downstream servo-valve electronics without loading the amplifier stages.

Digital changeover on the card is controlled by a relay that becomes active once the coil sees between +17 to +28 V, enabling separation of low-level electronics from switching transients. That arrangement is useful where command signals and on/off logic are present on the same module. Long-term reliability is supported by components rated for non-condensing storage from −20 to +70 °C, so the board can be stored with other automation spares without special climate control. The Eurocard format supports installation in standard guide rails and rack hardware used for this board style. Signal routing on the card helps preserve analog accuracy when the board is mounted beside higher-current equipment in a multi-slot control rack.