Product Description:

The VT-HACD-3-23/0-I-00/000 is a digital axis controller manufactured by Bosch Rexroth Indramat within the VT-HACD Digital Axis Controllers series. Mounted on a DIN rail next to proportional or servo valve drivers, it regulates closed-loop position, velocity, and pressure in hydraulic or electromechanical axes. The unit acts as the local interface between machine-level transducers and higher-level PLC commands, issuing precise analog or digital signals that adjust valve spool positions or inverter setpoints during automated motion profiles.

The controller accepts 6 analog inputs for sensors such as pressure transmitters or LVDTs and provides 3 analog outputs for valve control stages. The voltage inputs have a resolution of 5 mV, while current inputs are digitized at 5 µA, permitting precise feedback handling. For discrete signaling, it carries 9 digital inputs that read limit switches and mode selectors, plus 8 digital outputs that can energize relays or status lamps, with each line sourcing up to 20 mA. Analog Output 1 supports a maximum load of 500 Ω and can supply 10 mA with a voltage resolution of 1.25 mV, so proportional valves receive smoothly graded commands. These resources allow one board to supervise multiple feedback loops without external I/O modules.

High-speed tasks are handled by a 32-bit PowerPC processor that evaluates encoder edges at an encoder frequency of up to 250 kHz. The module has an operating current of 200 mA from the 24 V control supply, and it offers a dedicated SSI channel with an SSI data width of 28 bits and 200 mA of sensor power for absolute position devices. An output stage can drive digital loads up to 20 mA, while the onboard current consumption remains constant, supporting predictable cabinet power requirements. With a compact mass of 930 g, the controller fits densely populated enclosures without exceeding common rail-loading limits.