Product Description:

Bosch Rexroth Indramat produced the VT-UK2-3X/ES-E61-A083/U205 as part of its VT-UK2 Universal Cards series. This plug-in signal conditioning card is installed in valve or drive control racks to process analog command and feedback signals through onboard amplifiers and relays. Within an automation cabinet, it provides a standardized interface between the controller and hydraulic power stages, allowing precise gain, summing, and polarity adjustments without external wiring.

The card follows the Eurocard mechanical format in DIN 41494, so its edge guides match common 19-inch subrack rails. A height of 100 mm and a length of 160 mm keep the board compatible with multislot enclosures and leave space for front-panel jumpers. Control lines terminate on a 32-way DIN 41612 backplane header with a blade-style connection that maintains contact reliability during repeated insertion cycles. Six differential stages are integrated; these appear on the schematic as six operational amplifiers that can be wired as followers, mixers, or inverters by jumper selection. The input reference accepts ±10 V signals, and the same span can be routed to the output for closed-loop tasks that need precise symmetry. Relay drivers on the board can switch pilot coils within the stated supply range, protecting low-level electronics from coil kickback.

The power section uses 10 V analog rails, and regulation keeps loop drive below 5 mA so heat buildup stays minimal. Relay energization tolerates surges up to 28 V yet still releases cleanly once supply falls under 17 V, supporting predictable machine shutdown behavior. Operating boundaries extend from 0 °C to 50 °C, while non-operating storage is allowed to 70 °C to limit drift during downtime. A blade connector layout aligns with the chassis wiring harness, and the output range feeds proportional valve coils or remote summing networks without additional level shifting.