Product Description:

Bosch Rexroth Indramat builds the VT-HNC100-1-1X-110-10 as a stand-alone digital axis controller for one hydraulic axis. It is intended to execute position, velocity, and pressure control loops inside an industrial cabinet. When paired with proportional or servo valves, the unit closes the control loop locally and can reduce response time in hydraulic systems. This makes the module suitable for electrohydraulic applications that need fast local axis regulation.

The analog interface can issue commands with a resolution of 1.25 mV, allowing fine spool or pressure adjustments. Feedback from incremental encoders is accepted up to 250 kHz, so fast axis motion can be tracked without losing counts. Program storage uses 1 MB of Flash EPROM, and processing is handled by a 16/32-bit MC68376 CPU with 256 KB of RAM for runtime data. Four voltage input channels accept external command values, while two inductive transducer inputs use a 5 kHz carrier for displacement sensors. An SSI interface supports 28-bit data frames for absolute position transducers, and higher-level communication is handled through the front-mounted serial port because no fieldbus interface is included.

The reference output stage provides ±10 V ±25 mV for valve electronics, and parameter transfer or diagnostics run through the RS-232 connection at 9.6 KBaud. Each of the eight short-circuit-protected switching outputs can sink up to 50 mA, while total module power demand remains within 8 W. Signal inputs present a current input resistance of 100 Ω ±0.2%, which keeps the load on connected control cards low. Configuration data is retained in EEPROM during power cycles, the product is in component series 1, and the four-layer board uses two inductive sensor channels instead of resolver or R-feedback wiring.