Product Description:

The VT-HNC100-1-1X-130-9 digital axis controller is produced by Bosch Rexroth Indramat for the VT-HNC Digital Axis Controllers series. Designed as part of the Digital NC control HNC100 product group, the unit coordinates hydraulic motion in industrial machinery where accurate cylinder positioning is required. It acts as the closed-loop interface between proportional valves, position transducers, and higher-level PLCs, translating numerical commands into precise valve currents for a single hydraulic cylinder. Its Eurocard format permits simple cabinet integration in standard control systems.

The controller uses component series 1 hardware. The axis version controls 1 hydraulic axis, and tasks run on a MC68376 CPU that switches between 16-bit and 32-bit modes. Volatile memory provides 256 KB of RAM, while machine data is stored in 1 MB of Flash EPROM and service parameters are kept in 8 KB of EEPROM. Voltage inputs present 200 kΩ ±2% impedance, current inputs show 100 Ω ±0.2% impedance, the reference range is ±10 V, and the output stage delivers ±10 mA at 1.25 mV steps. For absolute encoders, the SSI channel supports up to 28 bits, while RS-232 diagnostics operate at 9.6 kBaud and a 2 V inductive supply supports position sensors.

Real-time position capture is handled by the incremental encoder interface, which accepts signals up to 250 kHz without loss of counts. When high-accuracy analog feedback is preferred, the current input channel resolves 5 µA, while the voltage input channel resolves 5 mV for fine scaling over the ±10 V reference span. Total controller demand on the 24 V cabinet rail remains at 8 W, which helps limit power draw when multiple cards are installed in the same enclosure. These input and processing characteristics suit closed-loop hydraulic control with steady feedback handling under changing load conditions.