Product Description:

The VT-HNC100-1-1X-134-7 is a digital axis controller manufactured by Bosch Rexroth Indramat for the VT-HNC Digital Axis Controllers series. In the HNC100 product line, this unit is in component series 1 and is configured for one hydraulic axis. It provides the motion-control resources needed to close position, velocity, and pressure loops on a single cylinder or valve group in an automated machine.

The module accepts analog feedback through 4 current input channels, each protected by a 100 Ω input resistance and digitized at 5 µA resolution. This level of signal detail helps the controller detect small load changes on pressure transducers. Two command paths are provided by 2 current output channels with a granularity of 1.25 mV, while four additional voltage outputs drive proportional valves in mixed-signal systems. Matching four voltage inputs sample at 5 mV steps, allowing the unit to work with both current-based and voltage-based field signals. Motion feedback from incremental encoders is processed, and the resulting position data are stored in 8 KB of EEPROM for parameter retention. Program code resides in 1 MB flash memory, allowing nonvolatile storage inside the controller.

A 16/32-bit MC68376 processor performs interpolation and loop calculations at the controller’s core and uses 256 KB of RAM for dynamic variables such as trajectory buffers. The axis board draws only 8 W, easing cabinet thermal design. Deterministic timing is supported by an incremental interface ceiling of 250 kHz, which suits fast feedback updates during axis movement. Serial diagnostics run through the RS-232 port at 9.6 KBaud, and field wiring to sensors benefits from the high-impedance voltage inputs that minimize load on transducers. All functions operate within the component’s compact footprint, allowing integration beside hydraulic power units.