Product Description:

The VT-HACD-510-1X/V0/EFF00246 is a plug-in digital axis controller card developed by Bosch Rexroth Indramat for the VT-HACD Digital Axis Controllers series. Installed in a Eurocard rack, the module supervises proportional or servo-hydraulic actuators by generating reference values and processing feedback in closed-loop motion tasks. Within an automation cell, it supplies the drive-side signals needed for position, velocity, or pressure regulation, allowing a PLC to hand off real-time hydraulic control to the card through point-to-point wiring or serial communication.

Its main supply requires 24 VDC, and the design tolerates an input range from 21 V to 35 V so normal brownouts or reasonable surges do not interrupt regulation. A controller scan time of 2 ms sets how often the microprocessor updates the control algorithm, giving tight hydraulic response for most industrial axes. The analog output channel supports a voltage resolution of 1.25 mV, enabling fine valve command steps, and it can drive loads down to 1 kΩ in voltage mode or up to 500 Ω in current mode. A backplane connection is provided through a 64-pin DIN 41612 Form G header, which supports installation in standardized 3U carriers. When a host issues ±10 V commands, the card mirrors them at the reference output, matching the industry-standard interface level of ±10 V for proportional valve connections.

The power path is protected by a 4 A slow-blow fuse, which helps protect the PCB traces during sustained overcurrent while tolerating inrush peaks. Parameter download and diagnostics use RS232, so the unit can be connected to standard serial equipment without added interface hardware. During idle operation, the unit draws 250 mA, and its active mass of 0.2 kg keeps cabinet loading low. The 100 × 160 mm Eurocard format matches common rack dimensions, and the card size leaves space for convection cooling. A reference output current capability of 30 mA allows the module to source control loops that use current feedback, and the Ao1 voltage load minimum of 1 kΩ helps prevent sink currents that could distort the signal.