Product Description:

The VT-HACD-3-2X-0-I-00-000 is a plug-in digital axis controller from Bosch Rexroth Indramat's VT-HACD Digital Axis Controllers series. Mounted on a compact Eurocard, the module supervises position, velocity, and pressure loops for hydraulic actuators in industrial automation cells. It interfaces with external drives, sensors, and PLCs, generating precise analog commands while processing high-frequency feedback to stabilize motion sequences.

At the core of the board is a 32-bit PowerPC that executes control algorithms without additional coprocessors. The unit offers 9 digital inputs and 8 digital outputs, so a PLC can trigger mode changes while the controller returns status bits for diagnostics. For high-resolution position feedback, the incremental encoder channel accepts signals up to 250 kHz, and it can also read SSI words up to 28 bits wide. The integrated reference source supplies +10 V ±25 mV, ensuring stable excitation for potentiometric transducers. When driving a proportional valve, the analog output's voltage step size is 1.25 mV (14-bit), allowing fine adjustment of spool position; the corresponding current channel resolves to 1.25 µA for current-controlled devices.

The controller accepts 6 differential analog inputs that share a 5 mV conversion step and maintain voltage nonlinearity within ±0.25%. Power demand is 200 mA at 24 VDC, so power distribution cabinets can feed the board directly from a standard logic rail. Each digital input draws 7 mA, and every transistor output can source up to 20 mA for relay coils or LEDs. An auxiliary port delivers up to 200 mA for encoder power while the serial interface handles SSI telegrams at the rated data width. Environmental protection is IP 20, suitable for installation inside closed control enclosures, and the populated card weighs 930 g, facilitating easy handling during cabinet assembly.