Product Description:

The VT-UK2-3X/ES-E24-A009/U30 is a universal electronic card produced by Bosch Rexroth Indramat for the VT-UK2 Universal Cards series. Mounted in a 3U rack, the board distributes reference signals and small-signal conditioning needed for proportional valve drives, sensing loops, and other low-level automation tasks in hydraulic and electromechanical control assemblies. By combining fixed supply rails with user-adjustable offsets, the card provides a standardized platform for analog control inside hydraulic power units and motion cabinets.

Physically, the board measures 100 × 160 mm, matching the Eurocard profile so it can slide directly into common guide rails. Its layout conforms to DIN 41 494, and the rear backplane connector follows DIN 41 612, which keeps pin assignments identical across mixed racks. Logic and reference electronics are powered from a single rail at 10 V, while the conditioned command channel can deliver up to 5 mA without significant voltage drop. These dimensional and electrical limits allow the card to coexist with digital or relay boards in the same enclosure without special cooling or auxiliary supplies, which is useful when several control functions share one rack.

Field wiring enters through a blade connector, and every internal connection uses soldered junctions to minimize contact resistance. Offset trimming is handled by 5 null-point potentiometers, giving separate zero adjustments for multiple proportional channels. Signal amplification relies on 6 precision operational amplifiers arranged in three dual packages; this layout helps balance thermal drift and maintain symmetrical gain across complementary outputs. The amplifiers drive a bipolar command rail for repeatable analog control of proportional hydraulics, pressure transducers, and position sensors where stable signal scaling is required across multiple channels.