Product Description:

The VT-UK2-3X/VT13216A/U209 is a plug-in signal-processing board from Bosch Rexroth Indramat and belongs to the VT-UK2 Universal Cards series. It is intended for mounting in standardized racks. In that role, it conditions analog feedback and command voltages used by hydraulic or motion controllers.

This board adopts the Eurocard profile, providing a standard footprint of 100 x 160 mm that slides straight into 19-inch rack guides. Interface contacts are grouped on a Blade connector that follows DIN 41 612, permitting quick removal from a cabinet without disturbing adjacent wiring. Supply power arrives at 10 V, and the output stage provides the same magnitude so downstream electronics receive a matched reference. Internally, three dual operational-amplifier packages implement regulator, inverter, and summing blocks, while discrete resistors set individual loop gains and polarity. The layout keeps high-frequency tracks short to limit noise pickup, and plated through-holes support mechanical rigidity during vibration. Separate test points provide direct access to the reference and feedback nodes for adjustment and verification.

Digital conditioning is handled by a Schmitt-trigger for clean edge regeneration and a Differentiator that produces rate signals for phase-lead correction. These logic functions share the array of 6 operational amplifiers, allowing mixed analog and digital handling without extra silicon. Front-panel access is provided through 5 potentiometers of the null-point type, and centering any knob restores zero offset for straightforward adjustment. The op-amp pairs are wired in close proximity to their passive networks to minimize propagation delay, while identical reference levels on input and output help prevent saturation when several cards are cascaded. By combining multiple functional blocks on one board, the module reduces slot usage in compact hydraulic drive stations.