Product Description:

The VT-HACD-1-15-V0-1D-0 is a digital axis controller manufactured by Bosch Rexroth Indramat as part of the VT-HACD Digital Axis Controllers series. It executes position or pressure loops for electro-hydraulic axes, converting fieldbus commands and local sensor feedback into precise drive signals. Installed inside valve manifolds or control cabinets, the module links a machine control system to proportional or servo valves and governs motion sequences in industrial automation. Its role is to keep hydraulic motion responsive and repeatable while coordinating feedback and command signals inside one compact control unit.

I/O capacity is centered on 6 analog inputs for displacement or pressure transducers and 9 digital inputs for limit switches, mode selectors, or fault contacts. Three analog outputs send command values to external valve electronics, while eight digital outputs switch relays or indicators. Network communication relies on DeviceNet, and a 9-pin RS-232 port is available for local setup. Control calculations are executed every 2 ms, so the loop can respond quickly to changing loads and command updates. Nominal supply is 24 VDC through a back-plane connector protected by a 4 A slow-blow fuse. During idle states the board draws only 250 mA, an integrated display shows parameter numbers, setpoints, and diagnostic codes, and this variant does not include a valve output stage, so it is used with external power modules.

Operation can continue down to 21 V and remains stable up to 35 V, which helps the controller ride through temporary supply dips without dropping out. The assembled board weighs only 0.2 kg, so it adds very little load to compact mounting hardware and fits easily into space-limited enclosures. Low standby current helps limit panel heat buildup during inactive periods. The front display also allows direct review of active values and diagnostic messages at the module when network communication is unavailable. The small board format leaves more room for adjacent wiring, terminal blocks, and power distribution components in crowded cabinets.