VT-HNC100-1-20/W-08-P-0

The VT-HNC100-1-20/W-08-P-0 is a compact digital axis controller manufactured by Bosch Rexroth Indramat for the VT-HNC Digital Axis Controllers series. Designed for wall-mounted cabinets, this model manages motion on one hydraulic axis by processing feedback, generating setpoints, and interfacing with higher-level PLCs. In industrial automation, it coordinates valve currents and analog references so that presses, injection machines, or test rigs can position cylinders precisely without requiring dedicated computer hardware at every station.

For network integration, the unit communicates over PROFIBUS DP, and its port supports data rates up to 12 Mbaud, enabling timely parameter updates and diagnostic exchanges with centralized control systems. The controller provides 4 analog current input channels, allowing it to read multiple pressure or force transducers simultaneously. Each channel is digitized at a resolution of 5 µA, so small signal changes translate into fine command steps. A fixed input impedance of 200 kΩ helps isolate the controller from high-output-impedance sensors and minimizes loading errors. Complementary voltage inputs, current outputs, and digital I/O provide the connections required to implement closed-loop control within the module.

High-speed feedback is supported through an incremental encoder interface that accepts pulse streams up to 250 kHz, providing sufficient headroom for linear or rotary scales mounted on fast-moving hydraulic rams. The encoder input allows the controller to compare commanded and measured motion at high update rates, supporting responsive position correction during rapid machine cycles. Despite this bandwidth, the electronics consume only 8 W, which reduces cabinet heat generation and supports installation in densely packed panels. The housing weighs 1.0 kg, limiting the mechanical load placed on the cabinet mounting surface. It measures 71 × 155 × 204 mm, allowing the required panel space and installation clearances to be determined before mounting.