Product Description:

The VT-HNC100-1-1X-120-SGM001 digital axis controller is produced by Bosch Rexroth Indramat within the VT-HNC Digital Axis Controllers series. It belongs to the HNC100 digital NC control product line and is classified under component series 1. Configured for one hydraulic axis, the module executes closed-loop position, pressure, and velocity control in electro-hydraulic machinery. It converts numerical commands into analog or current signals for valves and processes sensor feedback in real time. Its control functions are suited to machines that require coordinated hydraulic motion rather than simple open-loop valve actuation.

I/O resources include four voltage inputs with a resolution of 5 mV, four current inputs resolved to 5 µA, two current outputs, and four voltage outputs. This channel count supports simultaneous command, feedback, and monitoring signals on a single axis. The on-board flash capacity of 1 MB complements an 8 KB EEPROM for nonvolatile parameter storage, while real-time tasks are handled by a 16/32-bit MC68376 processor. An incremental encoder interface supports frequencies up to 250 kHz, which suits fast axis motion and rapid feedback updates. Overall power draw holds at 8 W to ease cabinet cooling. The unit comes without an inductive position sensor, so external LVDT or SSI devices must be added when absolute feedback is required.

Execution buffers are provided by 256 KB of RAM for deterministic cycle processing. The SSI port accepts Gray-coded streams and carries a word width of 28 bits, enabling absolute position capture from sealed rotary encoders. For analog command generation, each voltage output is trimmed in 1.25 mV steps, allowing fine control of proportional valves. Serial diagnostics are available through an RS-232 link that communicates at 9.6 kBaud, supporting parameter access without occupying the fieldbus. This dedicated serial channel allows service communication to remain separate from the main control path during operation.