VT-HACD-3-23/P-I-00/000

Product Description:

Bosch Rexroth Indramat manufactured the VT-HACD-3-23/P-I-00/000. The controller draws 200 mA at 24 VDC—where 4.8 Watts of power is the result. That's a relatively modest thermal load but one that still needs to be carefully managed. If you don't, you risk increasing the junction temperature in those integrated circuits. Most of that electricity is lost as heat through conduction and convection processes—using heat sinks and PCB copper planes. To avoid hotspots and dielectric breakdowns, you need to design your enclosure or mounting environment with enough ventilation and thermal headroom. The VT-HACD-3-23/P-I-00/000 has six software-configurable differential input channels. Those channels allow you to interface with analog signals in a range of ±10 V within a wider ±15 V input width. They work by subtracting voltages across paired lines rather than referencing a single ground. That differential signal measurement helps remove common-mode noise—crucial in high-noise industrial environments where that kind of noise can really mess things up.

The granularity of interpreting sensor signals is controlled by the inbuilt ADC resolution of 5 mV. That's the lowest voltage step the controller can digitally identify. You also get a calibration tolerance of ±40 mV to correct for systematic offset errors caused by component drift or manufacturing variability. And then there's the defined non-linearity of ±0.25% across the measurement range. That adds an acceptable error margin in signal quality. The controller has three analog channels for output capabilities. One of those—AO1—can be software-selected for either current output (0–20 mA or 4–20 mA) or voltage output (0–10 V or ±10 V). AO2 and AO3 stay constant at ±10 V. When interacting with field equipment that needs either voltage-specified control or current-loop signaling, AO1's adaptability really comes in handy. At 1.25 mV for voltage mode and 1.25 µA for current mode, AO1's resolution provides the accuracy you need to operate analog actuators with low granularity errors.

Those digital channels make it easy to integrate simple on/off sensors and switches into a more comprehensive control system. A 32-bit Power PC processor powers the system's intelligence, capable of doing sophisticated real-time calculations and intricate signal conditioning techniques. The controller integrates seamlessly into contemporary decentralized systems when paired with an extensive communication suite that includes PROFIBUS DP at 12 MBaud, RS232, EtherNet/IP and PROFINET RT. For externally attached measurement circuits, a reference output voltage of +10 V ±25 mV (at 20 mA) ensures signal consistency. Thermal reliability is maintained across an operating temperature range of 0 °C to 50 °C. The IP20 protection level and the unit's weight (930 g to 1162 g) make it suitable for installation in dry, regulated situations with little chance of fluid or mechanical infiltration.