Product Description:

The VT-HACD-3-2X-E-I-00-000 is a digital axis controller produced by Bosch Rexroth Indramat within the VT-HACD Digital Axis Controllers series. The unit coordinates hydraulic or electric actuators by executing closed-loop position or pressure control in automation cells. By embedding its processor directly on a DIN rail next to proportional valves or drives, the controller reduces panel space and simplifies wiring.

It provides 6 analog inputs for sensors such as pressure transmitters and LVDTs, while 3 analog outputs can drive proportional valves or external setpoint devices. Discrete control is handled through 9 digital inputs and 8 digital outputs, enabling interlocks, limit switches, and solenoid actuation without additional I/O blocks. A 24 VDC operating voltage powers the internal logic and field terminals, so it can share the same low-voltage supply as surrounding PLC hardware. The controller stores parameters in nonvolatile FLASH memory, so tuning data remain intact after power cycles. With a voltage input resistance of 300 kΩ ±5%, the analog channels load sensors only lightly and help maintain signal fidelity.

Three independent closed loops can run simultaneously, each accepting incremental or SSI feedback signals up to 250 kHz, so high-resolution encoders can be used without pulse loss. Control calculations execute within a 2 ms scanning time, delivering tight response for demanding motion profiles. When standalone sequencing is required, the unit can switch among 32 sequence blocks selected through program logic or field inputs. Network integration is supported through EtherNet/IP, and a front-panel RS-232 socket allows local setup. Installation on a DIN rail reduces enclosure work, and a dedicated +10 V reference output simplifies potentiometer or joystick wiring. The short scan interval helps maintain repeatable cycle-to-cycle accuracy during changing motion commands.