Product Description:

The VT-HACD-1-EFF00237 is a digital axis controller card produced by Bosch Rexroth Indramat and supplied within the VT-HACD Digital Axis Controllers series. Installed in a rack or cabinet, it provides closed-loop positioning and speed regulation for hydraulic or electromechanical axes in automated machinery. It processes analog sensor signals, executes internal control algorithms, and drives external valves or amplifiers through its analog and digital outputs. This control role supports repeatable motion on axes that must remain stable during load changes or direction reversals.

The board is powered from a nominal 24 VDC supply, and internal monitoring keeps operation active down to 21 V while disabling outputs when input rises above the ceiling of 35 V. Standby consumption is limited to 250 mA, allowing dense multi-card installations without overloading low-current backplane supplies. A 4 A slow-acting fuse protects upstream wiring against short-circuit faults. Command staging uses a bipolar reference of ±10 V that can source up to 30 mA when driving external servo amplifiers, while each digital output can sink or source up to 30 mA for status lamps, relays, or opto-isolators. These electrical limits set the safe interfacing range for both logic and power stages in the machine control network.

Signal processing resources include 6 differential analog inputs for feedback devices and 3 analog outputs for valve or drive reference signals. A scheduling loop runs every 2 ms, so the controller can respond quickly to load changes in precision motion tasks. All connections exit through a backplane-style 64-pin DIN 41612 G header, enabling direct insertion into standardized Eurocard racks; the physical envelope is a 100 × 160 mm card and it weighs only 0.2 kg, which helps during installation. An onboard RS232 port supports parameter download or diagnostic readout using standard serial tools, supporting straightforward integration with supervisory or service computers.