Product Description:

The VT-HACD-515-1X-V0-EFF00323 is a plug-in digital axis controller card manufactured by Bosch Rexroth Indramat for the VT-HACD Digital Axis Controllers series. Installed in a Eurocard rack, the module generates analog command signals and evaluates feedback to regulate hydraulic or electric motion axes inside automated machinery. By combining fast signal conditioning with field-level interfaces, the card provides closed-loop positioning functionality that is normally handled by stand-alone motion drives. The design targets industrial automation cells that require coordinated velocity, pressure, and position control without adding separate PLC processing.

The primary analog channel (Ao1) sources up to 10 mA, and its adjustment resolution is 1.25 mV, permitting fine trim of valve reference levels. Auxiliary channels Ao2 and Ao3 deliver a bipolar span of ±10 V for proportional valve control. Signal conversion repeats every 2 ms, which sets the loop update time. All connections reach the board through a 64-pin DIN 41612 Form G header, and protection relies on a 4 A slow-blow fuse that isolates the card from inrush events. With 250 mA of idle draw at 24 VDC, the module fits directly on machine power buses, while digital outputs can source 30 mA for relays or indicator lamps.

Physical dimensions of 100 × 160 mm match the standard Eurocard format, simplifying integration in DIN rail sub-racks and providing adequate surface area for thermal dissipation. When multiple VT-HACD cards share a local bus, signal integrity is maintained over cable runs up to 280 m, which supports distributed control cabinets along large production lines. The supply range extends from a minimum of 21 VDC up to 35 VDC, so voltage drops across wiring harnesses will not interrupt axis regulation. A serial RS-232 interface is available for parameter download and diagnostics, and the board’s reference generator provides the bipolar voltage required by external transducers without an additional source.