Product Description:

The VT-UK2-3X/VT13991A/U147 is a plug-in electronics module from Bosch Rexroth Indramat that belongs to the VT-UK2 Universal Cards series. Designed for mounting in DIN-compatible subracks, the board provides interface and signal-conditioning functions for hydraulic valve drives, feedback sensors, and other low-level analog signals used in automated machinery. In control cabinets, it helps condition small electrical signals before they are passed to amplifiers or supervisory electronics. Its standardized card layout lets the module fit matching subracks without rewiring and supports straightforward service when a control loop must be restored.

Bearing the Eurocard profile, the board uses a standardized footprint of 100 x 160 mm. This format matches guide rails and ejector handles common in industrial 19-inch racks, keeping alignment consistent across adjacent cards. Its PCB dimensions follow DIN 41494. Signal and power conductors reach the backplane through a DIN 41612 interface that uses blade-style contacts for reliable mating cycles. Six onboard operational amplifiers provide selectable gain, offset, and filtering stages, and the signal chain is driven from an input reference of 10 V to match common proportional valve command levels.

Power for the analog stages requires 15 VDC or +24 VDC. This arrangement lets the card share the same rail set used by proportional valve drivers and programmable logic modules. When configured for voltage-mode signaling, each channel sources a maximum of 5 mA, which helps protect delicate transducer inputs from overload. The output can be linked directly to reference ports on servo controllers without added signal conversion. A storage temperature range of -20 to +70 °C helps protect sensitive components during warehouse storage and transit. The board follows common backplane wiring practice, so it can be integrated without added thermal shielding or custom connectors.