Product Description:

The VT-HACD-DPQ-1-2X-V0-1-0-0 digital axis controller is produced by Bosch Rexroth Indramat as part of the VT-HACD Digital Axis Controllers series. Intended for hydraulic or electro-hydraulic positioning tasks, this board-level module manages one proportional valve channel while monitoring pressure and position feedback in molding, pressing, or metal-cutting machinery. It provides onboard closed-loop control, local parameter entry through the integrated display, and direct coordination with external servo-hydraulic amplifiers, allowing compact standalone regulation without a dedicated motion PLC. Pressure and position signals are processed directly on the board, which supports stable control in machines that require repeatable hydraulic motion.

Internally, the controller handles 1 axis, so it supports a single motion line. All logic circuits operate from 24 VDC, and the permitted supply range extends from 21 V to 30 V. The supply should pass through a panel-mounted 4 A time-lag fuse to protect the board against inrush current or wiring faults. Under normal load, the electronics draw up to 150 mA, while the separately routed digital outputs must stay below 30 mA per channel. The control loop refreshes on a 2 ms cycle, updating valve commands 500 times per second. No fieldbus daughter card is installed, so the unit has no bus interface, and parameter access and diagnostics are available through the RS232 service port. Because the controller does not include an internal valve output stage, it is connected to external amplifiers for valve actuation.

Embedded sequencing supports complex molding and press routines without an added controller layer. The unit can execute 10 injection profile steps, allowing segmented velocity curves during material entry, and it then applies five hold-pressure steps followed by three retraction stages for controlled screw or ram withdrawal. Command outputs provide a ±10 V analog reference that is compatible with standard analog drivers. The illuminated display simplifies local adjustment when no fieldbus is present, and the lack of an internal valve power stage reduces heat while saving panel space inside the cabinet.